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  <xsd:element id="ptmn_RoyaltyInterest" name="RoyaltyInterest" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="ptmn_RelatedPartyTransactionTermsOfTerminateAdministrationAgreement" name="RelatedPartyTransactionTermsOfTerminateAdministrationAgreement" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ptmn_AssetCoveragePerUnit" name="AssetCoveragePerUnit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ptmn_TaWegHoldingsLlcMember" name="TaWegHoldingsLlcMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_MeasurementInputRecoveryRateMember" name="MeasurementInputRecoveryRateMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_FiscalTwoThousandFourteenMember" name="FiscalTwoThousandFourteenMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_EnergyOilAndGasMember" name="EnergyOilAndGasMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_ScheduleOfInvestmentPortfolioBySecurityTypeTableTextBlock" name="ScheduleOfInvestmentPortfolioBySecurityTypeTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ptmn_FiscalTwoThousandTwentyMember" name="FiscalTwoThousandTwentyMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_AerospaceAndDefenseMember" name="AerospaceAndDefenseMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_NonRecurringFeeIncomeReceived" name="NonRecurringFeeIncomeReceived" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ptmn_DentiveLLCMember" name="DentiveLLCMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_AtpOilAndGasCorporationMember" name="AtpOilAndGasCorporationMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_PremierImagingLlcMember" name="PremierImagingLlcMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_AnthemSportsAndEntertainmentIncMember" name="AnthemSportsAndEntertainmentIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_ScheduleOfInformationAboutSeniorSecuritiesTableTextBlock" name="ScheduleOfInformationAboutSeniorSecuritiesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ptmn_TaxableIncomeBeforeDeductionsForDistributions" name="TaxableIncomeBeforeDeductionsForDistributions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ptmn_StockRepurchaseProgramMember" name="StockRepurchaseProgramMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_InvestmentCompanyMarketReturn" name="InvestmentCompanyMarketReturn" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ptmn_MediaDiversifiedProductionMember" name="MediaDiversifiedProductionMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_IdcInfusionServicesMember" name="IdcInfusionServicesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_CatamaranClo20151LtdMember" name="CatamaranClo20151LtdMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_ConvertibleDebtUnfundedAmountWithdrawn" name="ConvertibleDebtUnfundedAmountWithdrawn" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ptmn_InvestmentCompanyBookOrTaxDifferencesRelatedToMergersAndPartnershipInvestments" name="InvestmentCompanyBookOrTaxDifferencesRelatedToMergersAndPartnershipInvestments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ptmn_InvestmentOwnershipPercentage" name="InvestmentOwnershipPercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="ptmn_ProceedsFromIssuanceOfPrivatePlacementAndOther" name="ProceedsFromIssuanceOfPrivatePlacementAndOther" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ptmn_FiscalTwoThousandTwelveMember" name="FiscalTwoThousandTwelveMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_InvestmentCompanyInterestExpenseRatio" name="InvestmentCompanyInterestExpenseRatio" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ptmn_KegLogisticsLlcMember" name="KegLogisticsLlcMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_DerivativesAtCost" name="DerivativesAtCost" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ptmn_InvestmentAdvisoryExpensesPolicyTextBlock" name="InvestmentAdvisoryExpensesPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ptmn_PhyNetDermatologyLlcMember" name="PhyNetDermatologyLlcMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_TwoThousandEighteenTwoSubordinatedNotesMember" name="TwoThousandEighteenTwoSubordinatedNotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_FinanceMember" name="FinanceMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_GarsCommonStockMember" name="GarsCommonStockMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_DividendIncomeAbstract" name="DividendIncomeAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_NetwrixCorporationMember" name="NetwrixCorporationMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_EnvironmentalIndustriesMember" name="EnvironmentalIndustriesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_ServicesConsumerMember" name="ServicesConsumerMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_InvestmentCompanyPortfolioTurnoverRate" name="InvestmentCompanyPortfolioTurnoverRate" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ptmn_AutomotiveMember" name="AutomotiveMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_ClassAToRNotesAndBToRNotesMember" name="ClassAToRNotesAndBToRNotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_InvestmentCompanyBookOrTaxDifferencesOnCollateralizedLoanObligationEquityInvestments" name="InvestmentCompanyBookOrTaxDifferencesOnCollateralizedLoanObligationEquityInvestments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ptmn_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSalesPaydownsReturnOfCapital" name="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSalesPaydownsReturnOfCapital" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ptmn_DebtSecurityInvestmentInterestRateFloor" name="DebtSecurityInvestmentInterestRateFloor" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ptmn_InvestmentIncomePolicyTextBlock" name="InvestmentIncomePolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ptmn_InvestmentCompanyNetAssetsIncreaseDecreaseResultingFromStockholderDistributions" name="InvestmentCompanyNetAssetsIncreaseDecreaseResultingFromStockholderDistributions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ptmn_JointVentureIndustryMember" name="JointVentureIndustryMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_AssetManagerSubsidiariesMember" name="AssetManagerSubsidiariesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_CashReceivedUponConversionOfEachElectingShares" name="CashReceivedUponConversionOfEachElectingShares" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ptmn_IndustryName" name="IndustryName" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ptmn_InvestmentOwnedPercentOfTotalPortfolioFairValue" name="InvestmentOwnedPercentOfTotalPortfolioFairValue" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="ptmn_NumberOfSharesDerivativeInstruments" name="NumberOfSharesDerivativeInstruments" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="ptmn_MaxorNationalPharmacyServicesLlcMember" name="MaxorNationalPharmacyServicesLlcMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_BetaPlusTechnologiesIncMember" name="BetaPlusTechnologiesIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_SecuritiesSwapAndOptionAgreementMember" name="SecuritiesSwapAndOptionAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_ContainersPackagingAndGlassMember" name="ContainersPackagingAndGlassMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_BusinessAcquisitionAdditionalConsiderationFundedPerShare" name="BusinessAcquisitionAdditionalConsiderationFundedPerShare" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="ptmn_SharesReceivedForEachNonElectingShares" name="SharesReceivedForEachNonElectingShares" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="ptmn_AverageRevenueMultipleMember" name="AverageRevenueMultipleMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_WeightedAverageMaturityOnDebtOutstanding" name="WeightedAverageMaturityOnDebtOutstanding" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ptmn_InvestmentCompanyOtherBookOrTaxDifferences" name="InvestmentCompanyOtherBookOrTaxDifferences" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ptmn_SixPointOneTwoFiveNotesDue2022Member" name="SixPointOneTwoFiveNotesDue2022Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_ConversionOfStockSharesConvertedFromElectingSharesToNonElectingShares" name="ConversionOfStockSharesConvertedFromElectingSharesToNonElectingShares" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ptmn_NetRealizedGainsLossesFromInvestmentTransactionsAbstract" name="NetRealizedGainsLossesFromInvestmentTransactionsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_RecentTransactionValuationTechniqueMember" name="RecentTransactionValuationTechniqueMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_FiscalTwoThousandFifteenMember" name="FiscalTwoThousandFifteenMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_DelayedDrawTermLoanMember" name="DelayedDrawTermLoanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_JointVenturesPercentageOfTotalAssets" name="JointVenturesPercentageOfTotalAssets" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="ptmn_FiscalTwoThousandNineteenMember" name="FiscalTwoThousandNineteenMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_PercentageOfHurdleRate" name="PercentageOfHurdleRate" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ptmn_PaidInKindIncome" name="PaidInKindIncome" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ptmn_SharesReceivedForEachElectingShares" name="SharesReceivedForEachElectingShares" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="ptmn_NetChangeInUnrealizedAppreciationDepreciationAbstract" name="NetChangeInUnrealizedAppreciationDepreciationAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_NonQualifiedAssetsPercentageOfTotalAssets" name="NonQualifiedAssetsPercentageOfTotalAssets" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="ptmn_JmpCreditAdvisorsCloVLtdMember" name="JmpCreditAdvisorsCloVLtdMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_GarsAcquisitionMember" name="GarsAcquisitionMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_PercentageOfAggregateAmountOfInterestPayableForFirstCoverageTest" name="PercentageOfAggregateAmountOfInterestPayableForFirstCoverageTest" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ptmn_F3CJointVentureMember" name="F3CJointVentureMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_CLOFundSecuritiesPercentageOfTotalAssets" name="CLOFundSecuritiesPercentageOfTotalAssets" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="ptmn_SeriesAGreatLakesFundingIiLlcMember" name="SeriesAGreatLakesFundingIiLlcMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_RealizedGainLossOnInvestmentsAndDebtExtinguishment" name="RealizedGainLossOnInvestmentsAndDebtExtinguishment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ptmn_HealthcareEducationAndChildcareMember" name="HealthcareEducationAndChildcareMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_ChemicalsPlasticsAndRubberMember" name="ChemicalsPlasticsAndRubberMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_SevenPointThreeSevenFivePercentNotesDueTwoThousandNineteenMember" name="SevenPointThreeSevenFivePercentNotesDueTwoThousandNineteenMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_GreenParkInfrastructureLlcMember" name="GreenParkInfrastructureLlcMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_CatamaranClo20181LtdMember" name="CatamaranClo20181LtdMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_TransportationConsumerMember" name="TransportationConsumerMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_ControlledAffiliatedInvestmentsMember" name="ControlledAffiliatedInvestmentsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_InvestmentCompanyNonInterestExpenseRatio" name="InvestmentCompanyNonInterestExpenseRatio" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ptmn_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesInvestments" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesInvestments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ptmn_ClassATo1RrAndClassATo1TrNotesMember" name="ClassATo1RrAndClassATo1TrNotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_FairValueOfInvestmentsByFairValueHierarchyLevelsTableTextBlock" name="FairValueOfInvestmentsByFairValueHierarchyLevelsTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ptmn_TankPartnersEquipmentHoldingsLlcMember" name="TankPartnersEquipmentHoldingsLlcMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_ExciseTaxPercentage" name="ExciseTaxPercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ptmn_TransportationCargoMember" name="TransportationCargoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_InvestmentCompanyTaxProvisionBenefitOnRealizedAndUnrealizedGainsLossesOnInvestments" name="InvestmentCompanyTaxProvisionBenefitOnRealizedAndUnrealizedGainsLossesOnInvestments" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ptmn_ConvertibleDebtUnfundedAmount" name="ConvertibleDebtUnfundedAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ptmn_FiscalTwoThousandTwentyTwoMember" name="FiscalTwoThousandTwentyTwoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_NetInvestmentIncomePerCommonShareAbstract" name="NetInvestmentIncomePerCommonShareAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_InvestmentPortfolioPercentage" name="InvestmentPortfolioPercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ptmn_CatamaranClo20142LtdMember" name="CatamaranClo20142LtdMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_DerivativesMember" name="DerivativesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_GlprfLlcMember" name="GlprfLlcMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_AccountingStandardUpdate201104Member" name="AccountingStandardUpdate201104Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_DelayedDrawTermLoan1stLienOneMember" name="DelayedDrawTermLoan1stLienOneMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_ServicesBusinessMember" name="ServicesBusinessMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_InvestmentCompanyNetIncreaseDecreaseInNetAssetsRelatingToStockBasedTransactions" name="InvestmentCompanyNetIncreaseDecreaseInNetAssetsRelatingToStockBasedTransactions" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ptmn_InvestmentCompanyRealizedGainsLossesFromExtinguishmentOfDebt" name="InvestmentCompanyRealizedGainsLossesFromExtinguishmentOfDebt" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ptmn_MeasurementInputAverageEbitdaMultipleMember" name="MeasurementInputAverageEbitdaMultipleMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_PercentageOfQualifyingAssetsToTotalAssets" name="PercentageOfQualifyingAssetsToTotalAssets" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="ptmn_ValuationUnobservableInput" name="ValuationUnobservableInput" type="xbrli:decimalItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="ptmn_HotelGamingLeisureMember" name="HotelGamingLeisureMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_SubordinatedNotesMember" name="SubordinatedNotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_ExtinguishmentOfDebtPolicyTextBlock" name="ExtinguishmentOfDebtPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ptmn_RelatedPartyTransactionTermsOfRemovalOfAdviser" name="RelatedPartyTransactionTermsOfRemovalOfAdviser" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ptmn_JointVenturesMember" name="JointVenturesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_InvestmentsOwnedAtCostInclusiveOfDerivativeLiability" name="InvestmentsOwnedAtCostInclusiveOfDerivativeLiability" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ptmn_NetInvestmentIncomePerCommonShareBasicAndDiluted" name="NetInvestmentIncomePerCommonShareBasicAndDiluted" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ptmn_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetUnrealizedGainLoss" name="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetUnrealizedGainLoss" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ptmn_FiscalTwoThousandSeventeenMember" name="FiscalTwoThousandSeventeenMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_InvestmentIncomeFromInvestmentsInJointVentures" name="InvestmentIncomeFromInvestmentsInJointVentures" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ptmn_SeniorUnsecuredBondMember" name="SeniorUnsecuredBondMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_FeesAndOtherIncomeAbstract" name="FeesAndOtherIncomeAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_PercentageOfCapitalGainsFee" name="PercentageOfCapitalGainsFee" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ptmn_ManagementAndIncentiveFeePayable" name="ManagementAndIncentiveFeePayable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ptmn_ReceivableForUnsettledTrades" name="ReceivableForUnsettledTrades" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ptmn_ReverseStockSplitMember" name="ReverseStockSplitMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_AverageSettlementValueMember" name="AverageSettlementValueMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_HcapAcquisitionMember" name="HcapAcquisitionMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_PercentageOfMinimumCommitmentsUtilizationRequirement" name="PercentageOfMinimumCommitmentsUtilizationRequirement" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ptmn_TwoThousandEighteenTwoSecuredNotesClassA1TRNotesMember" name="TwoThousandEighteenTwoSecuredNotesClassA1TRNotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_NetRealizedAndUnrealizedAppreciationDepreciationOnInvestmentsNetOfTaxes" name="NetRealizedAndUnrealizedAppreciationDepreciationOnInvestmentsNetOfTaxes" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ptmn_RevolvingLoanMember" name="RevolvingLoanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_PercentageOfNetAssetValueAtFairValue" name="PercentageOfNetAssetValueAtFairValue" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ptmn_InvestmentsInAndAdvancesToAffiliatesAtFairValueTransfersInOutOfAffiliates" name="InvestmentsInAndAdvancesToAffiliatesAtFairValueTransfersInOutOfAffiliates" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ptmn_FourPointEightSevenFiveNotesDue2026Member" name="FourPointEightSevenFiveNotesDue2026Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_TwoThousandEighteenTwoSecuredNotesClassClassBRNotesMember" name="TwoThousandEighteenTwoSecuredNotesClassClassBRNotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_LondonInterbanksOfferedRateLIBORMember" name="LondonInterbanksOfferedRateLIBORMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_PercentageOfOutstandingVotingSecuritiesOwned" name="PercentageOfOutstandingVotingSecuritiesOwned" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="ptmn_CloFundSecuritiesMember" name="CloFundSecuritiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_PaymentInKindIncomeAbstract" name="PaymentInKindIncomeAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_TwoThousandEighteenTwoSecuredNotesClassClassA2RNotesMember" name="TwoThousandEighteenTwoSecuredNotesClassClassA2RNotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_AverageMarketValuePerParValue" name="AverageMarketValuePerParValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ptmn_ClassAToRNotesMember" name="ClassAToRNotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_AssetManagerAffiliatesMember" name="AssetManagerAffiliatesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_FiscalTwoThousandSixteenMember" name="FiscalTwoThousandSixteenMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_HcapNotesMember" name="HcapNotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_DebtInstrumentRedemptionAmount" name="DebtInstrumentRedemptionAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ptmn_CentricBrandsIncMember" name="CentricBrandsIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_TextilesAndLeatherMember" name="TextilesAndLeatherMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_InvestmentsOwnedAtFairValueInclusiveOfDerivativeLiability" name="InvestmentsOwnedAtFairValueInclusiveOfDerivativeLiability" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ptmn_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesInterestReceivable" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesInterestReceivable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ptmn_AdministrationAgreementMember" name="AdministrationAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesPurchaseDiscount" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesPurchaseDiscount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ptmn_EnterpriseValueValuationTechniqueMember" name="EnterpriseValueValuationTechniqueMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_MeasurementInputRecoveryRateMultipleMember" name="MeasurementInputRecoveryRateMultipleMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_FiscalTwoThousandThirteenMember" name="FiscalTwoThousandThirteenMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_PercentageOfDebtSecuritiesContainsFloorRates" name="PercentageOfDebtSecuritiesContainsFloorRates" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ptmn_TwoThousandEighteenTwoSecuredNotesMember" name="TwoThousandEighteenTwoSecuredNotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_Dryden30SeniorLoanFundMember" name="Dryden30SeniorLoanFundMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_ElectronicsMember" name="ElectronicsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_BeverageFoodAndTobaccoMember" name="BeverageFoodAndTobaccoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_F3CJointVentureOwnershipPercentage" name="F3CJointVentureOwnershipPercentage" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="ptmn_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetNetAccretion" name="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetNetAccretion" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ptmn_CloFundSecuritiesIndustryMember" name="CloFundSecuritiesIndustryMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_InvestmentsInCloFundSecuritiesTableTextBlock" name="InvestmentsInCloFundSecuritiesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ptmn_DerivativeExercisePricePerShare" name="DerivativeExercisePricePerShare" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="ptmn_RelatedPartyTransactionTermsOfTerminateAdvisoryAgreement" name="RelatedPartyTransactionTermsOfTerminateAdvisoryAgreement" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ptmn_BradshawInternationalParentCorpMember" name="BradshawInternationalParentCorpMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_FiscalTwoThousandTwentyOneMember" name="FiscalTwoThousandTwentyOneMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_PayableForUnsettledTrades" name="PayableForUnsettledTrades" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ptmn_TaxProvisionBenefitOnRealizedAndUnrealizedGainsLossesOnInvestments" name="TaxProvisionBenefitOnRealizedAndUnrealizedGainsLossesOnInvestments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ptmn_BristolHospiceMember" name="BristolHospiceMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_AnalogicCorporationMember" name="AnalogicCorporationMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_CashConsiderationToShareholders" name="CashConsiderationToShareholders" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ptmn_HWLochnerIncMember" name="HWLochnerIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_PercentageOfCumulativeRealizedCapitalGains" name="PercentageOfCumulativeRealizedCapitalGains" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ptmn_RevolverMember" name="RevolverMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_PercentageOfCapitalization" name="PercentageOfCapitalization" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ptmn_CriticalNurseStaffingLlcMember" name="CriticalNurseStaffingLlcMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_HighTechIndustriesMember" name="HighTechIndustriesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_GarrisonCapitalEquityHoldingsIiLlcMember" name="GarrisonCapitalEquityHoldingsIiLlcMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_TwoThousandEighteenTwoSecuredNotesClassA1RRNotesMember" name="TwoThousandEighteenTwoSecuredNotesClassA1RRNotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_NonQualifyingAssetsMember" name="NonQualifyingAssetsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_NetRealizedGainsLossesFromInvestmentTransactionsAndExtinguishmentOfDebt" name="NetRealizedGainsLossesFromInvestmentTransactionsAndExtinguishmentOfDebt" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ptmn_PreferredEquityMember" name="PreferredEquityMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_AccordionPartnersLlcMember" name="AccordionPartnersLlcMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_AdvisoryAgreementMember" name="AdvisoryAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_CapitalEquipmentMember" name="CapitalEquipmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_DebtIssuanceCostsPolicyTextBlock" name="DebtIssuanceCostsPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="ptmn_RevolverTwoMember" name="RevolverTwoMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_CatamaranClo20141LtdMember" name="CatamaranClo20141LtdMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_EnergyElectricityMember" name="EnergyElectricityMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_MediaAdvertisingPrintingPublishingMember" name="MediaAdvertisingPrintingPublishingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_LineOfCreditFacilityInterestAndFeesExpense" name="LineOfCreditFacilityInterestAndFeesExpense" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="ptmn_InvestmentCompanyPrivatePlacementAndOtherResultingFromCapitalShareTransactions" name="InvestmentCompanyPrivatePlacementAndOtherResultingFromCapitalShareTransactions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ptmn_RevolverOneMember" name="RevolverOneMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_VbcSpineOpcoLlcMember" name="VbcSpineOpcoLlcMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="ptmn_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetRealizedGainLoss" name="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetRealizedGainLoss" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="ptmn_JointVentureMember" name="JointVentureMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
</xsd:schema>
