<SEC-DOCUMENT>0001209191-19-033420.txt : 20190530
<SEC-HEADER>0001209191-19-033420.hdr.sgml : 20190530
<ACCEPTANCE-DATETIME>20190530160725
ACCESSION NUMBER:		0001209191-19-033420
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20190522
FILED AS OF DATE:		20190530
DATE AS OF CHANGE:		20190530

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			SIEGEL RICHARD W
		CENTRAL INDEX KEY:			0001195154

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-22333
		FILM NUMBER:		19866611

	MAIL ADDRESS:	
		STREET 1:		1319 MARQUETTE DR
		CITY:			ROMEOVILLE
		STATE:			IL
		ZIP:			60441

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NANOPHASE TECHNOLOGIES Corp
		CENTRAL INDEX KEY:			0000883107
		STANDARD INDUSTRIAL CLASSIFICATION:	MISCELLANEOUS PRIMARY METAL PRODUCTS [3390]
		IRS NUMBER:				363687863
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1319 MARQUETTE DRIVE
		CITY:			ROMEOVILLE
		STATE:			IL
		ZIP:			60446
		BUSINESS PHONE:		6303231200

	MAIL ADDRESS:	
		STREET 1:		1319 MARQUETTE DRIVE
		CITY:			ROMEOVILLE
		STATE:			IL
		ZIP:			60446

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	NANOPHASE TECHNOLOGIES CORPORATION
		DATE OF NAME CHANGE:	19970305
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
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<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2019-05-22</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000883107</issuerCik>
        <issuerName>NANOPHASE TECHNOLOGIES Corp</issuerName>
        <issuerTradingSymbol>NANX</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001195154</rptOwnerCik>
            <rptOwnerName>SIEGEL RICHARD W</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1319 MARQUETTE DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>ROMEOVILLE</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60446</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>389838</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Common Stock (right to purchase)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>1.36</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2012-01-31</value>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2021-01-31</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>10000</value>
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                    <value>10000</value>
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                <value>2022-08-07</value>
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                <underlyingSecurityShares>
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            </underlyingSecurity>
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                    <value>D</value>
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            <securityTitle>
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                <value>0.415</value>
            </conversionOrExercisePrice>
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                <value>2014-02-14</value>
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            <expirationDate>
                <value>2023-02-14</value>
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            <underlyingSecurity>
                <underlyingSecurityTitle>
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                <underlyingSecurityShares>
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                </underlyingSecurityShares>
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            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>10000</value>
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        <derivativeHolding>
            <securityTitle>
                <value>Common Stock (right to purchase)</value>
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            <conversionOrExercisePrice>
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                <value>2015-02-13</value>
                <footnoteId id="F2"/>
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            <expirationDate>
                <value>2024-02-13</value>
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            <underlyingSecurity>
                <underlyingSecurityTitle>
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        <derivativeHolding>
            <securityTitle>
                <value>Common Stock (right to purchase)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>0.44</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2016-02-18</value>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2025-02-18</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>9000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>9000</value>
                </sharesOwnedFollowingTransaction>
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            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
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        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Common Stock (right to purchase)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>0.42</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2017-02-23</value>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2026-02-23</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>8100</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>8100</value>
                </sharesOwnedFollowingTransaction>
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            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
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        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Common Stock (right to purchase)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>0.90</value>
                <footnoteId id="F3"/>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2016-11-17</value>
                <footnoteId id="F3"/>
            </exerciseDate>
            <expirationDate>
                <value>2026-11-17</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>2000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2000</value>
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            <securityTitle>
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            <conversionOrExercisePrice>
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                <footnoteId id="F3"/>
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            <exerciseDate>
                <value>2016-11-17</value>
                <footnoteId id="F3"/>
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            <expirationDate>
                <value>2026-11-17</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
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                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>2000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
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        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Common Stock (right to purchase)</value>
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            <conversionOrExercisePrice>
                <value>1.18</value>
                <footnoteId id="F3"/>
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            <exerciseDate>
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                <footnoteId id="F3"/>
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            <expirationDate>
                <value>2026-11-17</value>
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            <underlyingSecurity>
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            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
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            <ownershipNature>
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        <derivativeHolding>
            <securityTitle>
                <value>Common Stock (right to purchase)</value>
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            <conversionOrExercisePrice>
                <value>0.84</value>
                <footnoteId id="F3"/>
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            <exerciseDate>
                <value>2016-11-17</value>
                <footnoteId id="F3"/>
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            <expirationDate>
                <value>2026-11-17</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
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                <underlyingSecurityShares>
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            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2000</value>
                </sharesOwnedFollowingTransaction>
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            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
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        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Common Stock (right to purchase)</value>
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            <conversionOrExercisePrice>
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            <exerciseDate>
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                <footnoteId id="F3"/>
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            <underlyingSecurity>
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                <sharesOwnedFollowingTransaction>
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            <securityTitle>
                <value>Common Stock (right to purchase)</value>
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                <value>1.10</value>
                <footnoteId id="F3"/>
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                <footnoteId id="F3"/>
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            <expirationDate>
                <value>2026-11-17</value>
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            <underlyingSecurity>
                <underlyingSecurityTitle>
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            <securityTitle>
                <value>Common Stock (right to purchase)</value>
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                <footnoteId id="F3"/>
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            <exerciseDate>
                <value>2016-11-17</value>
                <footnoteId id="F3"/>
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            <expirationDate>
                <value>2026-11-17</value>
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            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>2000</value>
                </underlyingSecurityShares>
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            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2000</value>
                </sharesOwnedFollowingTransaction>
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            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
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        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Common Stock (right to purchase)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>0.68</value>
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                <value>2018-02-21</value>
                <footnoteId id="F2"/>
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            <expirationDate>
                <value>2027-02-21</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>10000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>10000</value>
                </sharesOwnedFollowingTransaction>
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            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
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        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Common Stock (right to purchase)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>0.82</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2019-05-23</value>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <value>2028-05-23</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>10000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>10000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeTransaction>
            <securityTitle>
                <value>Common Stock (right to purchase)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>0.51</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2019-05-22</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>10000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.51</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2020-05-22</value>
                <footnoteId id="F1"/>
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            <expirationDate>
                <value>2029-05-22</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>10000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>10000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
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        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Subject to certain rights and restrictions, beginning on this date, options vest in three equal annual installments.</footnote>
        <footnote id="F2">Subject to certain restrictions, beginning on this date, options vest in three equal annual installments.</footnote>
        <footnote id="F3">The stock appreciation rights payable upon the reporting person's termination of service as a director of the Company were terminated, with stock options issued at identical exercise prices to the conversion prices of the respective stock appreciation rights. 2,000 were issued with an exercise price of $0.90, 2,000 were issued with an exercise price of $1.05, 2,000 were issued with an exercise price of $1.18, 2,000 were issued with an exercise price of $0.84, 2,000 were issued with an exercise price of $1.85, 2,000 were issued with an exercise price of $1.10, and 2,000 were issued with an exercise price of $0.99.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>By Jess Jankowski under UPA for Richard W. Siegel</signatureName>
        <signatureDate>2019-05-30</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
