Patents by Inventor Sharon X. Guo

Sharon X. Guo 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: 7951875
    Abstract: The present invention relates to hydrogenated nitrile rubber polymers having lower molecular weights and narrower molecular weight distributions than those known in the art.
    Type: Grant
    Filed: June 1, 2010
    Date of Patent: May 31, 2011
    Assignee: LANXESS Inc.
    Inventors: Frederic Guerin, Sharon X. Guo, Zsolt Szentivanyi, Stephan Glander
  • Patent number: 7919563
    Abstract: The present invention relates to the process for preparing hydrogenated nitrile rubber polymers having lower molecular weights and narrower molecular weight distributions than those known in the art.
    Type: Grant
    Filed: June 1, 2010
    Date of Patent: April 5, 2011
    Assignee: Lanxess Inc.
    Inventors: Frederic Guerin, Sharon X. Guo, Zsolt Szentivanyi, Stephan Glander
  • Publication number: 20100240848
    Abstract: The present invention relates to the process for preparing hydrogenated nitrile rubber polymers having lower molecular weights and narrower molecular weight distributions than those known in the art.
    Type: Application
    Filed: June 1, 2010
    Publication date: September 23, 2010
    Applicant: LANXESS DEUTSCHLAND GMBH
    Inventors: Frédéric Guérin, Sharon X. Guo, Zsolt Szentivanyi, Stephan Glander
  • Publication number: 20100240838
    Abstract: The present invention relates to hydrogenated nitrile rubber polymers having lower molecular weights and narrower molecular weight distributions than those known in the art.
    Type: Application
    Filed: June 1, 2010
    Publication date: September 23, 2010
    Applicant: LANXESS DEUTSCHLAND GMBH
    Inventors: Frédéric Guérin, Sharon X. Guo, Zsolt Szentivanyi, Stephan Glander
  • Patent number: 7772328
    Abstract: The present invention relates to hydrogenated nitrite rubber polymers having lower molecular weights and narrower molecular weight distributions than those known in the art. The present invention is also related to shaped articles containing hydrogenated nitrile rubber polymers having lower molecular weights and narrower molecular weight distributions than those known in the art.
    Type: Grant
    Filed: October 5, 2007
    Date of Patent: August 10, 2010
    Assignee: LANXESS Inc.
    Inventors: Frédéric Guérin, Sharon X. Guo, Zsolt Szentivanyl, Stephan Glander
  • Patent number: 7745539
    Abstract: The present invention relates to nitrile rubber polymers having lower molecular weights and narrower molecular weight distributions than those known in the art. The present invention also relates to a process for the manufacture of said nitrile rubber and the use of said nitrile rubber for the manufacture of shaped articles.
    Type: Grant
    Filed: August 26, 2004
    Date of Patent: June 29, 2010
    Assignee: LANXESS Inc.
    Inventors: Frédéric Guérin, Sharon X. Guo
  • Patent number: 7659339
    Abstract: The present invention relates to thermoplastic vulcanizates (TPVs) based on low Mooney, optionally hydrogenated nitrile butadiene rubber and polyamides. The present invention also relates to TPVs based on low Mooney, optionally, hydrogenated nitrile terpolymers and polyamides. TPVs prepared according to the present invention have improved morphology, smaller rubber particle size, and improved processability compared to TPVs containing non-low Mooney, optionally hydrogenated nitrile butadiene rubber.
    Type: Grant
    Filed: July 11, 2006
    Date of Patent: February 9, 2010
    Assignees: LANXESS Deutschland GmbH, LANXESS Inc.
    Inventors: Victor Nasreddine, Sharon X. Guo, Dirk Schaefer, Christopher M. Ong
  • Patent number: 7595361
    Abstract: The present invention relates to adhesive polymer composites containing at least one nitrile rubber polymer having a Mooney viscosity (ML 1+4 @ 100° C.) below 30, optionally at least one filler and optionally at least one cross-linking agent, a process for preparing the polymer composite wherein at least one nitrile rubber polymer having a Mooney viscosity (ML 1+4 @ 100° C.) below 30, optionally at least one filler and optionally at least one cross-linking agent are mixed and a self-supporting shaped article containing the compound optionally layered on or interposed between one or more supporting means. The present invention also relates to a tape containing the adhesive polymer composite optionally layered on or interposed between one or more supporting means. Further, the present invention relates to a sealant composition containing the adhesive polymer composite.
    Type: Grant
    Filed: December 3, 2003
    Date of Patent: September 29, 2009
    Assignee: Lanxess Inc.
    Inventors: Frederic Guerin, Sharon X. Guo
  • Patent number: 7381781
    Abstract: The present invention relates to a process for the production of hydrogenated nitrile rubber polymers having lower molecular weights and narrower molecular weight distributions than those known in the art in the absence of a co-(olefin).
    Type: Grant
    Filed: December 4, 2003
    Date of Patent: June 3, 2008
    Assignee: Lanxess Inc.
    Inventors: Christopher M. Ong, Sharon X. Guo, Frederic Guerin
  • Patent number: 7291667
    Abstract: The present invention relates to a multistage process including at least two steps for making a heat and oil resistant preroxide-cured thermoplastic vulcanizates (TPV) based on hydrogenated carboxiated nitrile butadiene rubber (HXNBR) and at least one polyamide. TPV's according to the present invention have improved properties and morphology over known TPV's prepared in single-stage processes.
    Type: Grant
    Filed: December 13, 2004
    Date of Patent: November 6, 2007
    Assignee: Lanxess Inc.
    Inventors: Victor Nasreddine, Sharon X. Guo, Rayner Krista, Dirk Achten
  • Patent number: 7265185
    Abstract: Polymers of a conjugated diene, an unsaturated nitrile and an ?,?-unsaturated carboxylic acid are selectively hydrogenated to reduce carbon-carbon double bonds, without also reducing carboxyl groups and nitrile groups, using a rhodium-containing compound as catalyst. The hydrogenated polymers are novel and display excellent adhesive properties at both room temperature and high temperature, excellent hot tear strength, and excellent abrasion resistance.
    Type: Grant
    Filed: April 9, 2001
    Date of Patent: September 4, 2007
    Assignee: Lanxess Inc.
    Inventors: Sharon X. Guo, Harald Bender
  • Patent number: 7091284
    Abstract: Hydrogenated copolymers of an unsaturated nitrile, butadiene and isoprene, wherein the molar ratio of butadiene to isoprene is less than 3:1, display valuable low temperature properties.
    Type: Grant
    Filed: August 21, 2001
    Date of Patent: August 15, 2006
    Assignees: Bayer AG, Bayer Inc.
    Inventors: Harald Bender, Rotraud Casper, legal representative, Hans Rafael Winkelbach, Hans Christian Strauch, Paul Nguyen, Sharon X. Guo, Janet Gamlin, Rudolf Casper, deceased
  • Patent number: 7030193
    Abstract: The present invention relates to a polymer composite containing at least one carboxylated nitrile rubber polymer, that is optionally hydrogenated, at least one basic compound, at least one polyhalogenated hydrocarbon, optionally at least one filler and optionally at least one cross-linking agent, a process for preparing said polymer composite wherein at least one carboxylated nitrile rubber polymer, that is optionally hydrogenated, at least one basic compound, at least one polyhalogenated hydrocarbon, optionally at least one filler and optionally at least one cross-linking agent are mixed and a shaped article containing diester bridges formed by reaction of at least one carboxylated nitrile rubber polymer, that is optionally hydrogenated, at least one basic compound and at least one polyhalogenated hydrocarbon.
    Type: Grant
    Filed: June 22, 2004
    Date of Patent: April 18, 2006
    Assignee: Bayer Inc.
    Inventors: Frederic Guerin, Carl Walter Von Hellens, Sharon X. Guo
  • Patent number: 6841623
    Abstract: The present invention relates to nitrile rubber polymers having lower molecular weights and narrower molecular weight distributions than those known in the art. The present invention also relates to a process for the manufacture of said nitrile rubber and the use of said nitrile rubber for the manufacture of shaped articles.
    Type: Grant
    Filed: June 10, 2002
    Date of Patent: January 11, 2005
    Assignee: Bayer Inc.
    Inventors: Frédéric Guérin, Sharon X. Guo
  • Patent number: 6828385
    Abstract: A process has now been discovered that permits the simultaneous crosslinking and derivation of an, optionally hydrogenated, polymer whose backbone is composed of a conjugated diene, an unsaturated nitrile and an unsaturated carboxylic acid in the presence of a coupling/condensing agent. This permits the preparation of a novel polymeric material that is an optionally hydrogenated polymer of a conjugated diene, an unsaturated nitrile and a derived unsaturated acid. It has also been found that this novel polymeric material has unexpected and valuable properties.
    Type: Grant
    Filed: October 8, 2002
    Date of Patent: December 7, 2004
    Assignee: Bayer Inc.
    Inventors: Janet N. Gamlin, Sharon X. Guo
  • Publication number: 20040236029
    Abstract: The present invention relates to hydrogenated nitrile rubber polymers having lower molecular weights and narrower molecular weight distributions than those known in the art. The present invention is also related to shaped articles containing hydrogenated nitrile rubber polymers having lower molecular weights and narrower molecular weight distributions than those known in the art.
    Type: Application
    Filed: June 28, 2004
    Publication date: November 25, 2004
    Inventors: Frederic Guerin, Sharon X. Guo, Zsolt Szentivanyi, Stephan Glander
  • Patent number: 6780939
    Abstract: The present invention relates to hydrogenated nitrile rubber polymers having lower molecular weights and narrower molecular weight distributions than those known in the art. The present invention is also related to shaped articles containing hydrogenated nitrile rubber polymers having lower molecular weights and narrower molecular weight distributions than those known in the art.
    Type: Grant
    Filed: June 10, 2002
    Date of Patent: August 24, 2004
    Assignee: Bayer Inc.
    Inventors: Frédéric Guérin, Sharon X. Guo, Zsolt Szentivanyi, Stephan Glander
  • Publication number: 20040132891
    Abstract: The present invention relates to a process for the production of hydrogenated nitrile rubber polymers having lower molecular weights and narrower molecular weight distributions than those known in the art in the absence of a co-(olefin).
    Type: Application
    Filed: December 4, 2003
    Publication date: July 8, 2004
    Inventors: Christopher M. Ong, Sharon X. Guo, Frederic Guerin
  • Publication number: 20040132906
    Abstract: The present invention relates to adhesive polymer composites containing at least one nitrile rubber polymer having a Mooney viscosity (ML 1+4 @ 100° C.) below 30, optionally at least one filler and optionally at least one cross-linking agent, a process for preparing the polymer composite wherein at least one nitrile rubber polymer having a Mooney viscosity (ML 1+4 @ 100° C.) below 30, optionally at least one filler and optionally at least one cross-linking agent are mixed and a self-supporting shaped article containing the compound optionally layered on or interposed between one or more supporting means. The present invention also relates to a tape containing the adhesive polymer composite optionally layered on or interposed between one or more supporting means. Further, the present invention relates to a sealant composition containing the adhesive polymer composite.
    Type: Application
    Filed: December 3, 2003
    Publication date: July 8, 2004
    Inventors: Frederic Guerin, Sharon X. Guo
  • Publication number: 20040097660
    Abstract: Hydrogenated copolymers of an unsaturated nitrile, butadiene and isoprene, wherein the molar ratio of butadiene to isoprene is less than 3:1, display valuable low temperature properties.
    Type: Application
    Filed: November 18, 2003
    Publication date: May 20, 2004
    Inventors: Harald Bender, Rudolf Casper, Hans Rafael Winkelbach, Hans Christian Strauch, Paul Nguyen, Sharon X. Guo, Janet Gamlin, Rotraud Casper