Patents by Inventor Stephan V. Drappel
Stephan V. Drappel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9738811Abstract: Phase change ink compositions having a phase change carrier composition containing a wax and a wax-soluble near-infrared (NIR) dye having an absorption maximum in the wavelength region from about 700 nm to about 1400 nm. Near-infrared prints prepared with such phase change ink compositions. Methods of producing a layer of such a phase change ink on the surface of a substrate.Type: GrantFiled: August 26, 2013Date of Patent: August 22, 2017Assignee: XEROX CORPORATIONInventors: Jeffrey H. Banning, Jule W. Thomas, Jr., Bo Wu, Stephan V. Drappel
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Patent number: 9422440Abstract: An embodiment of the present disclosure is directed to an amorphous bis-urea compound having a formula 1: where X is a branched alkyl bridge and R? and R? are alkyl groups.Type: GrantFiled: December 6, 2013Date of Patent: August 23, 2016Assignee: XEROX CORPORATIONInventors: Naveen Chopra, Adela Goredema, Kentaro Morimitsu, Stephan V. Drappel, Jeffrey H. Banning
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Patent number: 9394319Abstract: A compound comprising a boron subphthalocyanine moiety, a plurality of solubilizing substituents positioned on peripheral cyclic groups of the boron subphthalocyanine moiety and an axial substituent positioned on the boron atom of the boron subphthalocyanine moiety. The plurality of solubilizing substituents comprise an oxygen or sulfur containing functional group and a substituted or unsubstituted, linear, branched or cyclic, aliphatic or aromatic terminal hydrocarbyl group that is 8 or more carbon atoms in length, the hydrocarbyl group optionally containing one or more heteroatoms. The axial substituent is selected from the group consisting of halogen, alkyloxy, haloalkyloxy, ester, carbonyl substituted alkyl, carbonyl substituted haloalkyl, alkylaryloxy, haloalkylaryloxy, alkyl sulfonyl, haloalkyl sulfonyl, alkylaryl sulfonyl and haloalkylaryl sulfonyl.Type: GrantFiled: August 28, 2013Date of Patent: July 19, 2016Assignee: XEROX CORPORATIONInventors: Jeffrey H. Banning, Wolfgang G. Wedler, Stephan V. Drappel
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Patent number: 9309410Abstract: Disclosed is a compound of the formula wherein Ra and Rb each, independently of the other, are hydrogen, alkyl, aryl, arylalkyl, or alkylaryl, R1 and R2 each, independently of the other, are hydrogen, alkyl, aryl, arylalkyl, or alkylaryl, provided that at least one of R1 and R2 is other than hydrogen, and R3, R4, R5, R6, and R7 each, independently of the others, are alkyl, aryl, arylalkyl, alkylaryl, or a substituent other than hydrogen, alkyl, aryl, arylalkyl, or alkylaryl, wherein in each case alkyl, aryl, arylalkyl, or alkylaryl may or may not be substituted and may or may not have hetero atoms therein, and wherein two or more of R3, R4, R5, R6, and R7 can be joined together to form a ring.Type: GrantFiled: August 28, 2013Date of Patent: April 12, 2016Assignee: XEROX CORPORATIONInventors: Jeffery H. Banning, Bo Wu, Nathan G. Starr, Stephan V. Drappel
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Patent number: 9228097Abstract: Phase change ink comprising carrier and colorant of formula wherein Ra and Rb each, independently, are hydrogen, alkyl, including substituted and hetero-containing alkyl, aryl, including substituted and hetero-containing aryl, arylalkyl, including substituted and hetero-containing arylalkyl, or alkylaryl, including substituted and hetero-containing alkylaryl; R1 and R2 each, independently, are hydrogen, provided at least one of R1 and R2 is other than hydrogen, alkyl, including substituted and hetero-containing alkyl, aryl, including substituted and hetero-containing aryl, arylalkyl, including substituted and hetero-containing arylalkyl, or alkylaryl, including substituted and hetero-containing alkylaryl; R3, R4, R5, R6, and R7 each, independently, are alkyl, including substituted and hetero-containing alkyl, aryl, including substituted and hetero-containing aryl, arylalkyl, including substituted and hetero-containing arylalkyl, alkylaryl, including substituted and hetero-containing alkylaryl, or a substiType: GrantFiled: August 28, 2013Date of Patent: January 5, 2016Assignee: Xerox CorporationInventors: Jeffery H. Banning, Bo Wu, Nathan G. Starr, Stephan V. Drappel
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Patent number: 9193883Abstract: A phase change ink composition including an amorphous compound; a crystalline compound; a polyester polymer, wherein the polyester has a molecular weight of from about 500 to about 8,000 and a polydispersity index of from about 1.0 to about 8.0; an optional synergist; an optional dispersant; and a colorant. A process including (1) incorporating into an ink jet printing apparatus the phase change ink composition; (2) melting the ink; and (3) causing droplets of the melted ink to be ejected in an imagewise pattern onto a substrate. An ink jet printer stick or pellet including the phase change ink composition.Type: GrantFiled: June 18, 2013Date of Patent: November 24, 2015Assignee: Xerox CorporationInventors: Barkev Keoshkerian, Valerie M. Farrugia, Jenny Eliyahu, Gordon Sisler, Biby Esther Abraham, Stephan V. Drappel
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Patent number: 9193869Abstract: A dye compound of formula 1: where R and R? are substituents independently selected from the group consisting of a hydrogen atom, C1 to C4 alkyl and a solubilizing moiety comprising a substituted or unsubstituted C10 to C70 hydrocarbyl group. At least one of R and R? is not a hydrogen atom or C1 to C4 alkyl. R? and R?? can be independently selected from the group consisting of a hydrogen atom, C1 to C6 alkyl groups or halogens; and X is a squaric acid moiety. A property of the dye compound is that it absorbs radiation having a wavelength in the range of about 700 nm to about 1400 nm.Type: GrantFiled: August 26, 2013Date of Patent: November 24, 2015Assignee: XEROX CORPORATIONInventors: Jeffrey H. Banning, Jule W. Thomas, Jr., Bo Wu, Stephan V. Drappel
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Patent number: 9109131Abstract: A phase change ink composition comprising an amorphous component, a crystalline material, a photochromic material and optionally, a colorant, which are suitable for ink jet printing, including printing on coated paper substrates. The novel phase change ink formulation allows the ink to change color when exposed to UV light, reversibly and multiple times, providing an ink suitable for use in security applications.Type: GrantFiled: January 16, 2013Date of Patent: August 18, 2015Assignee: XEROX CORPORATIONInventors: Gabriel Iftime, Daryl W. Vanbesien, Stephan V. Drappel, Jennifer L. Belelie, Naveen Chopra, Adela Goredema
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Patent number: 9056998Abstract: Novel crystalline compounds with at least two aromatic moieties for use in the phase change inks. The crystalline compound is derived from bio-renewable materials and can be used in phase change ink compositions to impart desirable ink properties. For example, the crystalline compounds provide phase change ink compositions suitable for ink jet printing, including robust printing on coated paper substrates.Type: GrantFiled: October 14, 2013Date of Patent: June 16, 2015Assignee: XEROX CORPORATIONInventors: Adela Goredema, Guerino Sacripante, Kentaro Morimitsu, Naveen Chopra, Stephan V. Drappel
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Publication number: 20150159033Abstract: An embodiment of the present disclosure is directed to an amorphous bis-urea compound having a formula 1: where X is a branched alkyl bridge and R? and R? are alkyl groups.Type: ApplicationFiled: December 6, 2013Publication date: June 11, 2015Applicant: XEROX CORPORATIONInventors: Naveen Chopra, Adela Goredema, Kentaro Morimitsu, Stephan V. Drappel, Jeffrey H. Banning
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Patent number: 9051486Abstract: A solid ink composition comprising an amorphous component, a crystalline material, and optionally, a colorant, which are suitable for ink jet printing, including printing on coated paper substrates, and methods for making the same. In embodiments, the crystalline and amorphous components are synthesized from an esterification reaction of tartaric acid with an alcohol.Type: GrantFiled: October 18, 2013Date of Patent: June 9, 2015Assignee: XEROX CORPORATIONInventors: Jennifer L. Belelie, Kentaro Morimitsu, Naveen Chopra, Corey Tracy, Stephan V. Drappel, Peter G. Odell
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Publication number: 20150105579Abstract: Novel crystalline compounds with at least two aromatic moieties for use in the phase change inks. The crystalline compound is derived from bio-renewable materials and can be used in phase change ink compositions to impart desirable ink properties. For example, the crystalline compounds provide phase change ink compositions suitable for ink jet printing, including robust printing on coated paper substrates.Type: ApplicationFiled: October 14, 2013Publication date: April 16, 2015Applicant: XEROX CORPORATIONInventors: ADELA GOREDEMA, Guerino Sacripante, Kentaro Morimitsu, Naveen Chopra, Stephan V. Drappel
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Patent number: 9005484Abstract: A composition that includes an stabilized silver nanoparticles, a gellant and an optional wax. The gellant and the stabilized silver nanoparticles are soluble or dispersable in either an isoparaffinic hydrocarbon solvent, a mineral oil solvent or an alkane solvent.Type: GrantFiled: March 31, 2009Date of Patent: April 14, 2015Assignee: Xerox CorporationInventors: Marcel P. Breton, Yiliang Wu, Naveen Chopra, Jennifer L. Belelie, Stephan V. Drappel
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Patent number: 8981088Abstract: A compound comprising a boron subphthalocyanine moiety, a plurality of solubilizing substituents positioned on peripheral cyclic groups of the boron subphthalocyanine moiety and an axial substituent positioned on the boron atom. The plurality of solubilizing substituents comprise an oxygen or sulfur containing functional group and a substituted or unsubstituted, linear, branched or cyclic, aliphatic or aromatic terminal hydrocarbyl group that is 8 or more carbon atoms in length, the hydrocarbyl group optionally containing one or more heteroatoms. The axial substituent is a cyclic group selected from the group consisting of heterocyclic amine groups, diaryl ketone groups, benzotriazole groups, benzyl alcohol groups and polycyclic aromatic hydrocarbon groups, the cyclic group being bonded to the boron atom by an oxygen containing linking moiety, the cyclic group optionally being substituted with one or more additional substituents.Type: GrantFiled: August 28, 2013Date of Patent: March 17, 2015Assignee: Xerox CorporationInventors: Jeffrey H. Banning, Wolfgang G. Wedler, Stephan V. Drappel
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Patent number: 8974047Abstract: A phase change ink composition including an ink vehicle; an optional colorant; and ethylene vinyl acetate in an amount of from about 0.1 to about 10 percent by weight based on the total weight of the phase change ink composition.Type: GrantFiled: November 27, 2012Date of Patent: March 10, 2015Assignee: Xerox CorporationInventors: Salma Falah Toosi, Mihaela Maria Birau, Biby Esther Abraham, Stephan V. Drappel, James D. Mayo, Peter G. Odell, Jeffrey H. Banning, Caroline Turek
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Publication number: 20150065697Abstract: Disclosed is a compound of the formula wherein Ra and Rb each, independently of the other, are hydrogen, alkyl, aryl, arylalkyl, or alkylaryl, R1 and R2 each, independently of the other, are hydrogen, alkyl, aryl, arylalkyl, or alkylaryl, provided that at least one of R1 and R2 is other than hydrogen, and R3, R4, R5, R6, and R7 each, independently of the others, are alkyl, aryl, arylalkyl, alkylaryl, or a substituent other than hydrogen, alkyl, aryl, arylalkyl, or alkylaryl, wherein in each case alkyl, aryl, arylalkyl, or alkylaryl may or may not be substituted and may or may not have hetero atoms therein, and wherein two or more of R3, R4, R5, R6, and R7 can be joined together to form a ring.Type: ApplicationFiled: August 28, 2013Publication date: March 5, 2015Applicant: Xerox CorporationInventors: Jeffery H. Banning, Bo Wu, Nathan G. Starr, Stephan V. Drappel
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Publication number: 20150065729Abstract: A compound comprising a boron subphthalocyanine moiety, a plurality of solubilizing substituents positioned on peripheral cyclic groups of the boron subphthalocyanine moiety and an axial substituent positioned on the boron atom of the boron subphthalocyanine moiety. The plurality of solubilizing substituents comprise an oxygen or sulfur containing functional group and a substituted or unsubstituted, linear, branched or cyclic, aliphatic or aromatic terminal hydrocarbyl group that is 8 or more carbon atoms in length, the hydrocarbyl group optionally containing one or more heteroatoms. The axial substituent is selected from the group consisting of halogen, alkyloxy, haloalkyloxy, ester, carbonyl substituted alkyl, carbonyl substituted haloalkyl, alkylaryloxy, haloalkylaryloxy, alkyl sulfonyl, haloalkyl sulfonyl, alkylaryl sulfonyl and haloalkylaryl sulfonyl.Type: ApplicationFiled: August 28, 2013Publication date: March 5, 2015Applicant: XEROX CORPORATIONInventors: Jeffrey H. Banning, Wolfgang G. Wedler, Stephan V. Drappel
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Publication number: 20150065620Abstract: Phase change ink comprising carrier and colorant of formula wherein Ra and Rb each, independently, are hydrogen, alkyl, including substituted and hetero-containing alkyl, aryl, including substituted and hetero-containing aryl, arylalkyl, including substituted and hetero-containing arylalkyl, or alkylaryl, including substituted and hetero-containing alkylaryl; R1 and R2 each, independently, are hydrogen, provided at least one of R1 and R2 is other than hydrogen, alkyl, including substituted and hetero-containing alkyl, aryl, including substituted and hetero-containing aryl, arylalkyl, including substituted and hetero-containing arylalkyl, or alkylaryl, including substituted and hetero-containing alkylaryl; R3, R4, R5, R6, and R7 each, independently, are alkyl, including substituted and hetero-containing alkyl, aryl, including substituted and hetero-containing aryl, arylalkyl, including substituted and hetero-containing arylalkyl, alkylaryl, including substituted and hetero-containing alkylaryl, or a substiType: ApplicationFiled: August 28, 2013Publication date: March 5, 2015Applicant: Xerox CorporationInventors: Jeffery H. Banning, Bo Wu, Nathan G. Starr, Stephan V. Drappel
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Publication number: 20150065713Abstract: A compound comprising a boron subphthalocyanine moiety, a plurality of solubilizing substituents positioned on peripheral cyclic groups of the boron subphthalocyanine moiety and an axial substituent positioned on the boron atom. The plurality of solubilizing substituents comprise an oxygen or sulfur containing functional group and a substituted or unsubstituted, linear, branched or cyclic, aliphatic or aromatic terminal hydrocarbyl group that is 8 or more carbon atoms in length, the hydrocarbyl group optionally containing one or more heteroatoms. The axial substituent is a cyclic group selected from the group consisting of heterocyclic amine groups, diaryl ketone groups, benzotriazole groups, benzyl alcohol groups and polycyclic aromatic hydrocarbon groups, the cyclic group being bonded to the boron atom by an oxygen containing linking moiety, the cyclic group optionally being substituted with one or more additional substituents.Type: ApplicationFiled: August 28, 2013Publication date: March 5, 2015Applicant: XEROX CORPORATIONInventors: Jeffrey H. Banning, Wolfgang G. Wedler, Stephan V. Drappel
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Publication number: 20150056420Abstract: Phase change ink compositions having a phase change carrier composition containing a wax and a wax-soluble near-infrared (NIR) dye having an absorption maximum in the wavelength region from about 700 nm to about 1400 nm. Near-infrared prints prepared with such phase change ink compositions. Methods of producing a layer of such a phase change ink on the surface of a substrate.Type: ApplicationFiled: August 26, 2013Publication date: February 26, 2015Applicant: Xerox CorporationInventors: Jeffrey H. Banning, Jule W. Thomas, Jr., Bo Wu, Stephan V. Drappel