Patents by Inventor Li Pi Shan

Li Pi Shan 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).

  • Publication number: 20110124818
    Abstract: A composition for use in forming a multi-block copolymer, said copolymer containing therein two or more segments or blocks differing in chemical or physical properties, a polymerization process using the same, and the resulting polymers, wherein the composition comprises the admixture or reaction product resulting from combining: (A) a first metal complex olefin polymerization catalyst, (B) a second metal complex olefin polymerization catalyst capable of preparing polymers differing in chemical or physical properties from the polymer prepared by catalyst (A) under equivalent polymerization conditions, and (C) a chain shuttling agent.
    Type: Application
    Filed: December 8, 2010
    Publication date: May 26, 2011
    Inventors: Daniel J. Arriola, Edmund M. Carnahan, Yunwa Wilson Cheung, David D. Devore, David D. Graf, Phillip D. Hustad, Roger L. Kuhlman, Colin Li Pi Shan, Benjamin C. Poon, Gordon R. Roof, James C. Stevens, Pamela J. Stirn, Timothy T. Wenzel
  • Publication number: 20110118416
    Abstract: A composition for use in forming a multi-block copolymer, said copolymer containing therein two or more segments or blocks differing in chemical or physical properties, a polymerization process using the same, and the resulting polymers, wherein the composition comprises the admixture or reaction product resulting from combining: (A) a first metal complex olefin polymerization catalyst, (B) a second metal complex olefin polymerization catalyst capable of preparing polymers differing in chemical or physical properties from the polymer prepared by catalyst (A) under equivalent polymerization conditions, and (C) a chain shuttling agent.
    Type: Application
    Filed: December 8, 2010
    Publication date: May 19, 2011
    Inventors: Daniel J. Arriola, Edmund M. Carnahan, Yunwa Wilson Cheung, David D. Devore, David D. Graf, Phillip D. Hustad, Roger L. Kuhlman, Colin Li Pi Shan, Benjamin C. Poon, Gordon R. Roof, James C. Stevens, Pamela J. Stirn, Timothy T. Wenzel
  • Publication number: 20110082257
    Abstract: Embodiments of the invention provide block composites and their use as impact modifiers.
    Type: Application
    Filed: October 1, 2010
    Publication date: April 7, 2011
    Applicant: Dow Global Technologies Inc.
    Inventors: Edmund M. Carnahan, Colin Li Pi Shan, Kim L. Walton, Gary R. Marchand, Benjamin C. Poon, Phillip D. Hustad, Brian A. Jazdzewski, Didem Oner-Deliormanli
  • Publication number: 20110082249
    Abstract: Embodiments of the invention provide block composites and their use in soft compounds.
    Type: Application
    Filed: October 1, 2010
    Publication date: April 7, 2011
    Applicant: Dow Global Technologies Inc.
    Inventors: Colin Li Pi Shan, Kim L. Walton, Gary R. Marchand, Ashish Batra, Eddy I. Garcia-Meitin, Jeffrey D. Weinhold
  • Patent number: 7893166
    Abstract: Embodiments of the invention provide a class of ethylene/?-olefin block interpolymers. The ethylene/?-olefin interpolymers are characterized by an average block index, ABI, which is greater than zero and up to about 1.0 and a molecular weight distribution, Mw/Mn, greater than about 1.3. Preferably, the block index is from about 0.2 to about 1. In addition or alternatively, the block ethylene/?-olefin interpolymer is characterized by having at least one fraction obtained by Temperature Rising Elution Fractionation (“TREF”), wherein the fraction has a block index greater than about 0.3 and up to about 1.0 and the ethylene/?-olefin interpolymer has a molecular weight distribution, Mw/Mn, greater than about 1.3.
    Type: Grant
    Filed: September 11, 2009
    Date of Patent: February 22, 2011
    Assignee: Dow Global Technologies, Inc.
    Inventors: Colin Li Pi Shan, Lonnie G. Hazlitt, Yunwa Wilson Cheung, Benjamin C. Poon, Phillip D. Hustad, Roger L. Kuhlman, Edmund M. Carnahan, Xiao Hua Qiu, Angela N. Taha
  • Patent number: 7858706
    Abstract: A composition for use in forming a multi-block copolymer, said copolymer containing therein two or more segments or blocks differing in chemical or physical properties, a polymerization process using the same, and the resulting polymers, wherein the composition comprises the admixture or reaction product resulting from combining: (A) a first metal complex olefin polymerization catalyst, (B) a second metal complex olefin polymerization catalyst capable of preparing polymers differing in chemical or physical properties from the polymer prepared by catalyst (A) under equivalent polymerization conditions, and (C) a chain shuttling agent.
    Type: Grant
    Filed: March 17, 2005
    Date of Patent: December 28, 2010
    Assignee: Dow Global Technologies Inc.
    Inventors: Daniel J. Arriola, Edmund M. Carnahan, Yunwa Wilson Cheung, David D. Devore, David D. Graf, Phillip D. Hustad, Roger L. Kuhlman, Colin Li Pi Shan, Benjamin C. Poon, Gordon R. Roof, James C. Stevens, Pamela J. Stirn, Timothy T. Wenzel
  • Patent number: 7801592
    Abstract: The invention relates to methods and systems to predict postoperative nausea and vomiting (PONV).
    Type: Grant
    Filed: June 15, 2007
    Date of Patent: September 21, 2010
    Inventors: William Li Pi Shan, Roupen Hatzakorzian, Pierre Fiset, Alain Deschamps
  • Publication number: 20100197880
    Abstract: The invention is related to an ethylene/?-olefin interpolymer having at least a hard segment and at least a soft segment. The soft segment contains a higher amount of comonomers than the hard segment. The hard segment has low crystallinity. The copolymer has a number of unique characteristics disclosed herein.
    Type: Application
    Filed: July 14, 2008
    Publication date: August 5, 2010
    Inventors: Colin Li Pi Shan, Roger L. Kuhlman, Gary L. Rath, Pamela J. Kenny, Morgan M. Hughes, Rongjuan Cong
  • Publication number: 20100197540
    Abstract: A lubricant composition comprises a base oil and a viscosity modifier including an ethylene/?-olefin interpolymer. The ethylene/?-olefin interpolymer has at least a hard segment and at least a soft segment. The soft segment contains a higher amount of comonomers than the hard segment. The hard segment has low crystallinity. The copolymer has a number of unique characteristics disclosed herein. Such copolymers offer the possibility of improved low temperature performance and flexibility in formulating motor oil, gear lubricants and greases, etc.
    Type: Application
    Filed: July 14, 2008
    Publication date: August 5, 2010
    Inventors: Colin Li Pi Shan, Roger L. Kuhlman, Gary L. Rath, Pamela J. Kenny, Morgan M. Hughes, Rongjuan Cong
  • Publication number: 20100197541
    Abstract: A lubricant composition comprises a base oil and a viscosity modifier including an ethylene/?-olefin interpolymer. The ethylene/?-olefin interpolymer is a block copolymer having at least a hard block and at least a soft block. The soft block comprises a higher amount of comonomers than the hard block. The block copolymer has a number of unique characteristics disclosed here. Such block copolymers offer the possibility of improved low temperature performance and flexibility in formulating motor oil, gear lubricants and greases, etc.
    Type: Application
    Filed: July 11, 2008
    Publication date: August 5, 2010
    Inventors: Colin Li Pi Shan, Roger L. Kuhlman, Gary L. Rath, Pamela J. Kenny, Morgan M. Hughes, Rongjuan Cong
  • Publication number: 20100197864
    Abstract: The invention is related to catalytic olefin block copolymers with a controlled block sequence distribution and at least one low crystallinity hard block. The block copolymer has a number of unique characteristics disclosed here.
    Type: Application
    Filed: July 11, 2008
    Publication date: August 5, 2010
    Inventors: Colin Li Pi Shan, Roger L. Kuhlman, Gary L. Rath, Pamela J. Kenny, Morgan M. Hughes, Rongjuan Cong
  • Publication number: 20100069574
    Abstract: Embodiments of the invention provide a class of ethylene/?-olefin block interpolymers. The ethylene/?-olefin interpolymers are characterized by an average block index, ABI, which is greater than zero and up to about 1.0 and a molecular weight distribution, Mw/Mn, greater than about 1.3. Preferably, the block index is from about 0.2 to about 1. In addition or alternatively, the block ethylene/?-olefin interpolymer is characterized by having at least one fraction obtained by Temperature Rising Elution Fractionation (“TREF”), wherein the fraction has a block index greater than about 0.3 and up to about 1.0 and the ethylene/?-olefin interpolymer has a molecular weight distribution, Mw/Mn, greater than about 1.3.
    Type: Application
    Filed: September 11, 2009
    Publication date: March 18, 2010
    Applicant: Dow Global Technologies Inc.
    Inventors: Colin Li Pi Shan, Lonnie G. Hazlitt, Yunwa W. Cheung, Benjamin C. Poon, Phillip D. Hustad, Roger L. Kuhlman, Edmund M. Carnahan, Xiahua Qiu, Angela N. Taha
  • Patent number: 7608668
    Abstract: Embodiments of the invention provide a class of ethylene/?-olefin block interpolymers. The ethylene/?-olefin interpolymers are characterized by an average block index, ABI, which is greater than zero and up to about 1.0 and a molecular weight distribution, Mw/Mn, greater than about 1.3. Preferably, the block index is from about 0.2 to about 1. In addition or alternatively, the block ethylene/?-olefin interpolymer is characterized by having at least one fraction obtained by Temperature Rising Elution Fractionation (“TREF”), wherein the fraction has a block index greater than about 0.3 and up to about 1.0 and the ethylene/?-olefin interpolymer has a molecular weight distribution, Mw/Mn, greater than about 1.3.
    Type: Grant
    Filed: March 15, 2006
    Date of Patent: October 27, 2009
    Assignee: Dow Global Technologies Inc.
    Inventors: Colin Li Pi Shan, Lonnie G. Hazlitt, Yunwa W. Cheung, Benjamin C. Poon, Phillip D. Hustad, Roger L. Kuhlman, Edmund M. Carnahan, Xiahua Qui, Angela N. Taha
  • Publication number: 20080166817
    Abstract: Apparatus for GPC/TREF and TREF/GPC characterization of a polymer sample. The apparatus provides for the automated and integrated use of multiple TREF columns and a GPC system employing a multiple flow through detectors. In addition, a method for TREF/GPC characterization of a polymer sample by GPC analysis of TREF fractions at increasing TREF elution temperatures from multiple TREF columns operated in a coordinated and synchronized temperature cycle for increased sample throughput. Also, a method for GPC/TREF characterization of a polymer sample by GPC fractionation followed by TREF fractionation of the GPC fractionations.
    Type: Application
    Filed: January 19, 2006
    Publication date: July 10, 2008
    Inventors: David T. Gillespie, Colin Li Pi Shan, Lonnie G. Hazlitt, Alexander W. Degroot, Peter B. Arnoudse, Charles Allen Williams
  • Publication number: 20070219334
    Abstract: Embodiments of the invention provide a class of propylene/?-olefin block interpolymers. The propylene/?-olefin interpolymers are characterized by an average block index, ABI, which is greater than zero and up to about 1.0 and a molecular weight distribution, Mw/Mn, greater than about 1.3. Preferably, the block index is from about 0.2 to about 1. In addition or alternatively, the block propylene/?-olefin interpolymer is characterized by having at least one fraction obtained by Temperature Rising Elution Fractionation (“TREF”), wherein the fraction has a block index greater than about 0.3 and up to about 1.0 and the propylene/?-olefin interpolymer has a molecular weight distribution, Mw/Mn, greater than about 1.3.
    Type: Application
    Filed: March 15, 2007
    Publication date: September 20, 2007
    Applicant: Dow Global Technologies Inc.
    Inventors: Colin Li Pi Shan, Lonnie G. Hazlitt, Yunwa Wilson Cheung, Benjamin C. Poon, Phillip D. Hustad, Roger L. Kuhlman, Edmund M. Carnahan, XiaoHua Qiu, Angela N. Taha
  • Publication number: 20060199930
    Abstract: Embodiments of the invention provide a class of ethylene/?-olefin block interpolymers. The ethylene/?-olefin interpolymers are characterized by an average block index, ABI, which is greater than zero and up to about 1.0 and a molecular weight distribution, Mw/Mn, greater than about 1.3. Preferably, the block index is from about 0.2 to about 1. In addition or alternatively, the block ethylene/?-olefin interpolymer is characterized by having at least one fraction obtained by Temperature Rising Elution Fractionation (“TREF”), wherein the fraction has a block index greater than about 0.3 and up to about 1.0 and the ethylene/?-olefin interpolymer has a molecular weight distribution, Mw/Mn, greater than about 1.3.
    Type: Application
    Filed: March 15, 2006
    Publication date: September 7, 2006
    Applicant: Dow Global Technologies Inc.
    Inventors: Colin Li Pi Shan, Lonnie Hazlitt, Yunwa Cheung, Benjamin Poon, Phillip Hustad, Roger Kuhlman, Edmund Carnahan, Xiaohua Qui, Angela Taha