Patents by Inventor Yuehui Zhou
Yuehui Zhou 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: 9102695Abstract: Methods of preparing compounds according to Formula (I): and salts thereof as well as their corresponding phosphine intermediates are provided herein, wherein R1 and R2 are different and each of R1 and R2 is independently selected from an organic radical that branches at the alpha carbon and an organic radical that branches at the beta carbon, and each of X and Y is independently O or S, and wherein said compound is a liquid at room temperature.Type: GrantFiled: May 23, 2014Date of Patent: August 11, 2015Assignee: CYTEC TECHNOLOGY CORP.Inventors: Yuehui Zhou, Jeffrey Charles Henry Dyck, Boban Jakovljevic, Cyril Christian Henri Bourget, Allan James Robertson, Donato Nucciarone
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Patent number: 8901339Abstract: Methods for preparing phosphonium salts by reacting a primary phosphine or a secondary phosphine with an ester compound selected from the group consisting of: a phosphate triester; a phosphonate diester; a sulfate diester; and a sulfonate ester; to form a phosphonium salt of formula VII wherein each of RQ, RX, RY, and RZ is independently hydrocarbyl and X? is a phosphate, phosphonate, sulfate, or sulfonate are provided herein. These phosphonium salts may find utility in a wide range of applications, including as surfactants, as polar solvents (ionic liquids), as antimicrobial agents, and as a component of spinning finish in polyamide fiber processing.Type: GrantFiled: January 10, 2014Date of Patent: December 2, 2014Assignee: Cytec Technology Corp.Inventors: Christine J. Bradaric-Baus, Yuehui Zhou
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Patent number: 8901338Abstract: Methods for preparing phosphonium salts by reacting a primary phosphine or a secondary phosphine with an ester compound selected from the group consisting of: a phosphate triester; a phosphonate diester; a sulfate diester; and a sulfonate ester; to form a phosphonium salt of formula VII wherein each of RQ, RX, RY, and RZ is independently hydrocarbyl and X? is a phosphate, phosphonate, sulfate, or sulfonate are provided herein. These phosphonium salts may find utility in a wide range of applications, including as surfactants, as polar solvents (ionic liquids), as antimicrobial agents, and as a component of spinning finish in polyamide fiber processing.Type: GrantFiled: January 10, 2014Date of Patent: December 2, 2014Assignee: Cytec Technology Corp.Inventors: Christine J. Bradaric-Baus, Yuehui Zhou
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Publication number: 20140275615Abstract: Methods of preparing compounds according to Formula (I): and salts thereof as well as their corresponding phosphine intermediates are provided herein, wherein R1 and R2 are different and each of R1 and R2 is independently selected from an organic radical that branches at the alpha carbon and an organic radical that branches at the beta carbon, and each of X and Y is independently O or S, and wherein said compound is a liquid at room temperature.Type: ApplicationFiled: May 23, 2014Publication date: September 18, 2014Applicant: Cytec Technology Corp.Inventors: Yuehui ZHOU, Jeffrey Charles Henry DYCK, Boban JAKOVLJEVIC, Cyril Christian Henri BOURGET, Allan James ROBERTSON, Donato NUCCIARONE
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Patent number: 8764880Abstract: The present invention provides phosphinic acids and their sulfur derivatives, in accordance with the following formula (I): wherein R1 and R2 are different and each of R1 and R2 is independently selected from an organic radical that branches at the alpha carbon and an organic radical that branches at the beta carbon, and each of X and Y is independently O or S, and wherein said compound is a liquid at room temperature. Compounds of formula (I) find utility for example as metal extractants. Also provided are methods for making compounds of formula (I) and their corresponding phosphine intermediates.Type: GrantFiled: June 12, 2007Date of Patent: July 1, 2014Assignee: Cytec Canada Inc.Inventors: Yuehui Zhou, Jeffrey Charles Henry Dyck, Boban Jakovljevic, Cyril Christian Henri Bourget, Allan James Robertson, Donato Nucciarone
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Patent number: 8748668Abstract: Methods for preparing phosphonium salts by reacting a primary phosphine or a secondary phosphine with an ester compound selected from the group consisting of: a phosphate triester; a phosphonate diester; a sulfate diester; and a sulfonate ester; to form a phosphonium salt of formula VII wherein each of RQ, RX, RY, and RZ is independently hydrocarbyl and X? is a phosphate, phosphonate, sulfate, or sulfonate are provided herein. These phosphonium salts may find utility in a wide range of applications, including as surfactants, as polar solvents (ionic liquids), as antimicrobial agents, and as a component of spinning finish in polyamide fiber processing.Type: GrantFiled: October 6, 2010Date of Patent: June 10, 2014Assignee: Cytec Technology Corp.Inventors: Christine J. Bradaric-Baus, Yuehui Zhou
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Publication number: 20140128630Abstract: Methods for preparing phosphonium salts by reacting a primary phosphine or a secondary phosphine with an ester compound selected from the group consisting of: a phosphate triester; a phosphonate diester; a sulfate diester; and a sulfonate ester; to form a phosphonium salt of formula VII wherein each of RQ, RX, RY, and RZ is independently hydrocarbyl and X? is a phosphate, phosphonate, sulfate, or sulfonate are provided herein. These phosphonium salts may find utility in a wide range of applications, including as surfactants, as polar solvents (ionic liquids), as antimicrobial agents, and as a component of spinning finish in polyamide fibre processing.Type: ApplicationFiled: January 10, 2014Publication date: May 8, 2014Applicant: Cytec Technology Corp.Inventors: Christine J. BRADARIC-BAUS, Yuehui ZHOU
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Publication number: 20140128629Abstract: Methods for preparing phosphonium salts by reacting a primary phosphine or a secondary phosphine with an ester compound selected from the group consisting of: a phosphate triester; a phosphonate diester; a sulfate diester; and a sulfonate ester; to form a phosphonium salt of formula VII wherein each of RQ, RX, RY, and RZ is independently hydrocarbyl and X? is a phosphate, phosphonate, sulfate, or sulfonate are provided herein. These phosphonium salts may find utility in a wide range of applications, including as surfactants, as polar solvents (ionic liquids), as antimicrobial agents, and as a component of spinning finish in polyamide fibre processing.Type: ApplicationFiled: January 10, 2014Publication date: May 8, 2014Applicant: Cytec Technology Corp.Inventors: Christine J. BRADARIC-BAUS, Yuehui ZHOU
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Publication number: 20110021838Abstract: Methods for preparing phosphonium salts by reacting a primary phosphine or a secondary phosphine with an ester compound selected from the group consisting of: a phosphate triester; a phosphonate diester; a sulfate diester; and a sulfonate ester; to form a phosphonium salt of formula VII wherein each of RQ, RX, RY, and RZ is independently hydrocarbyl and X? is a phosphate, phosphonate, sulfate, or sulfonate are provided herein. These phosphonium salts may find utility in a wide range of applications, including as surfactants, as polar solvents (ionic liquids), as antimicrobial agents, and as a component of spinning finish in polyamide fibre processing.Type: ApplicationFiled: October 6, 2010Publication date: January 27, 2011Applicant: CYTEC CANADA INC.Inventors: Christine J. BRADARIC-BAUS, Yuehui ZHOU
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Patent number: 7829744Abstract: A primary phosphine or a secondary phosphine is reacted with an ester compound selected from the group consisting of; a phosphate triester; a phosphonate diester; a sulfate diester; and a sulfonate ester; to form a phosphonium salt of formula (VII) wherein each of RQ, RX, RY, and RZ is independently hydrocarbyl and X? is a phosphate, phosphonate, sulfate, or sulfonate. These phosphonium salts may find utility in a wide range of applications, including as surfactants, as polar solvents (ionic liquids), as antimicrobial agents, and as a component of spinning finish in polyamide fiber processing.Type: GrantFiled: March 8, 2004Date of Patent: November 9, 2010Assignee: Cytec Technology CorpInventors: Christine J. Bradaric-Baus, Yuehui Zhou
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Patent number: 7638636Abstract: Novel phosphonium and imidazolium salts and methods for preparing them are disclosed. The novel phosphonium and imidazolium compounds are useful as polar solvents and have the general formula (I): Q+X? wherein Q+ is formula (a) or formula (b); and X? is formula (c), formula (d) or formula (e); and wherein: each of R1, R2, R3, R4, R5, R9, R10, R11, R12, and R13 is independently a hydrocarbyl group; each of R6, R7, and R8 is independently a hydrogen or hydrocarbyl group.Type: GrantFiled: August 8, 2003Date of Patent: December 29, 2009Assignee: Cytec Technology Corp.Inventors: Yuehui Zhou, Allan J. Robertson, John H. Hillhouse, Douglas Baumann
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Patent number: 7608713Abstract: Tertiary phosphines are prepared by reacting a phosphine (PH3 or a primary or secondary phosphine) with a cyclic alpha,beta-unsaturated carbonyl compound having no more than one C?C double bond conjugated with a carbonyl group. The inventive tertiary phosphines can have R groups that are the same or different. The inventive tertiary phosphines may be used as ligands for metal catalysts or as starting materials for preparing phosphonium salts or ylids.Type: GrantFiled: March 8, 2004Date of Patent: October 27, 2009Assignee: Cytec Canada Inc.Inventors: Christine J. Bradaric-Baus, Yuehui Zhou
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Publication number: 20090165598Abstract: The present invention provides phosphinic acids and their sulfur derivatives, in accordance with the following formula (I): wherein R1 and R2 are different and each of R1 and R2 is independently selected from an organic radical that branches at the alpha carbon and an organic radical that branches at the beta carbon, and each of X and Y is independently O or S, and wherein said compound is a liquid at room temperature. Compounds of formula (I) find utility for example as metal extractants. Also provided are methods for making compounds of formula (I) and their corresponding phosphine intermediates.Type: ApplicationFiled: June 12, 2007Publication date: July 2, 2009Inventors: Yuehui Zhou, Jeffrey Charles Henry Dyck, Boban Jakovljevic, Cyril Christian Henri Bourget, Allan James Robertson, Donato Nucciarone
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Publication number: 20070149482Abstract: A primary phosphine or a secondary phosphine is reacted with an ester compound selected from the group consisting of; a phosphate triester; a phosphonate diester; a sulfate diester; and a sulfonate ester, to form a phosphonium salt of formula (VII) wherein each of RQ, RX, RY, and RZ is independently hydrocarbyl and X? is a phosphate, phosphonate, sulfate, or sulfonate. These phosphonium salts may find utility in a wide range of applications, including as surfactants, as polar solvents (ionic liquids), as antimicrobial agents, and as a component of spinning finish in polyamide fibre processing.Type: ApplicationFiled: March 8, 2004Publication date: June 28, 2007Inventors: Christine Bradaric-Baus, Yuehui Zhou
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Publication number: 20070037981Abstract: Tertiary phosphines are prepared by reacting a phosphine (PH3 or a primary or secondary phosphine) with a cyclic alpha,beta-unsaturated carbonyl compound having no more than one C?C double bond conjugated with a carbonyl group. The inventive tertiary phosphines can have R groups that are the same or different. The inventive tertiary phosphines may be used as ligands for metal catalysts or as starting materials for preparing phosphonium salts or ylids.Type: ApplicationFiled: March 8, 2004Publication date: February 15, 2007Inventors: Christine Bradaric-Baus, Yuehui Zhou
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Publication number: 20060264645Abstract: Novel phosphonium and imidazolium salts and methods for preparing them are disclosed. The novel phosphonium and imidazolium compounds are useful as polar solvents and have the general formula (I): Q+X? wherein Q+ is formula (a) or formula (b); and X? is formula (c), formula (d) or formula (e); and wherein: each of R1, R2, R3, R4, R5, R9, R10, R11, R12, and R13 is independently a hydrocarbyl group; each of R6, R7, and R8 is independently a hydrogen or hydrocarbyl group.Type: ApplicationFiled: August 8, 2003Publication date: November 23, 2006Inventors: Yuehui Zhou, Allan Robertson, John Hillhouse, Douglas Baumann