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).

  • Patent number: 9102695
    Abstract: 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: Grant
    Filed: May 23, 2014
    Date of Patent: August 11, 2015
    Assignee: CYTEC TECHNOLOGY CORP.
    Inventors: Yuehui Zhou, Jeffrey Charles Henry Dyck, Boban Jakovljevic, Cyril Christian Henri Bourget, Allan James Robertson, Donato Nucciarone
  • Patent number: 8901339
    Abstract: 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: Grant
    Filed: January 10, 2014
    Date of Patent: December 2, 2014
    Assignee: Cytec Technology Corp.
    Inventors: Christine J. Bradaric-Baus, Yuehui Zhou
  • Patent number: 8901338
    Abstract: 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: Grant
    Filed: January 10, 2014
    Date of Patent: December 2, 2014
    Assignee: Cytec Technology Corp.
    Inventors: Christine J. Bradaric-Baus, Yuehui Zhou
  • Publication number: 20140275615
    Abstract: 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: Application
    Filed: May 23, 2014
    Publication date: September 18, 2014
    Applicant: Cytec Technology Corp.
    Inventors: Yuehui ZHOU, Jeffrey Charles Henry DYCK, Boban JAKOVLJEVIC, Cyril Christian Henri BOURGET, Allan James ROBERTSON, Donato NUCCIARONE
  • Patent number: 8764880
    Abstract: 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: Grant
    Filed: June 12, 2007
    Date of Patent: July 1, 2014
    Assignee: Cytec Canada Inc.
    Inventors: Yuehui Zhou, Jeffrey Charles Henry Dyck, Boban Jakovljevic, Cyril Christian Henri Bourget, Allan James Robertson, Donato Nucciarone
  • Patent number: 8748668
    Abstract: 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: Grant
    Filed: October 6, 2010
    Date of Patent: June 10, 2014
    Assignee: Cytec Technology Corp.
    Inventors: Christine J. Bradaric-Baus, Yuehui Zhou
  • Publication number: 20140128630
    Abstract: 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: Application
    Filed: January 10, 2014
    Publication date: May 8, 2014
    Applicant: Cytec Technology Corp.
    Inventors: Christine J. BRADARIC-BAUS, Yuehui ZHOU
  • Publication number: 20140128629
    Abstract: 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: Application
    Filed: January 10, 2014
    Publication date: May 8, 2014
    Applicant: Cytec Technology Corp.
    Inventors: Christine J. BRADARIC-BAUS, Yuehui ZHOU
  • Publication number: 20110021838
    Abstract: 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: Application
    Filed: October 6, 2010
    Publication date: January 27, 2011
    Applicant: CYTEC CANADA INC.
    Inventors: Christine J. BRADARIC-BAUS, Yuehui ZHOU
  • Patent number: 7829744
    Abstract: 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: Grant
    Filed: March 8, 2004
    Date of Patent: November 9, 2010
    Assignee: Cytec Technology Corp
    Inventors: Christine J. Bradaric-Baus, Yuehui Zhou
  • Patent number: 7638636
    Abstract: 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: Grant
    Filed: August 8, 2003
    Date of Patent: December 29, 2009
    Assignee: Cytec Technology Corp.
    Inventors: Yuehui Zhou, Allan J. Robertson, John H. Hillhouse, Douglas Baumann
  • Patent number: 7608713
    Abstract: 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: Grant
    Filed: March 8, 2004
    Date of Patent: October 27, 2009
    Assignee: Cytec Canada Inc.
    Inventors: Christine J. Bradaric-Baus, Yuehui Zhou
  • Publication number: 20090165598
    Abstract: 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: Application
    Filed: June 12, 2007
    Publication date: July 2, 2009
    Inventors: Yuehui Zhou, Jeffrey Charles Henry Dyck, Boban Jakovljevic, Cyril Christian Henri Bourget, Allan James Robertson, Donato Nucciarone
  • Publication number: 20070149482
    Abstract: 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: Application
    Filed: March 8, 2004
    Publication date: June 28, 2007
    Inventors: Christine Bradaric-Baus, Yuehui Zhou
  • Publication number: 20070037981
    Abstract: 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: Application
    Filed: March 8, 2004
    Publication date: February 15, 2007
    Inventors: Christine Bradaric-Baus, Yuehui Zhou
  • Publication number: 20060264645
    Abstract: 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: Application
    Filed: August 8, 2003
    Publication date: November 23, 2006
    Inventors: Yuehui Zhou, Allan Robertson, John Hillhouse, Douglas Baumann