Patents by Inventor Songping Liao

Songping Liao 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).

  • Polyester-polycarbonate compositions
    Patent number: 8222347
    Abstract: A composition of matter comprising a thermoplastic resin composition derived from (i) a polyester derived from a cycloaliphatic diol, and an aromatic diacid; (ii) a polycarbonate derived from at least from 20 mole percent to 100 mole percent of an aromatic diol derived from structure II wherein R3 and R4 are independently selected from the group consisting of C1-C30 aliphatic, C2-C30 cycloaliphatic and C2-C30 aromatic groups, X is CH2 and m is an integer from 3 to 7, n is an integer from 1 to 4, p is an integer from 1 to 4, and from 0 mole percent to 80 mole percent of a second aromatic dihydroxy compound; and wherein the resin composition is transparent is disclosed. Also disclosed is a process to prepare this composition and articles therefrom.
    Type: Grant
    Filed: July 25, 2007
    Date of Patent: July 17, 2012
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Shreyas Chakravarti, Songping Liao, Dake Shen, Huiping Zhang
  • Polyester-polycarbonate compositions, methods of manufacture, and methods of use
    Patent number: 7851560
    Abstract: A composition comprising a polysiloxane polycarbonate block copolymer; a cycloaliphatic polyester; and a polycarbonate that is different from the polycarbonate block copolymer, having a weight average molecular weight of less than about 20,000 Daltons. The compositions have high flow at low temperatures and good impact properties. The compositions are useful for the manufacture of components for handheld electronic devises such as cellular telephones.
    Type: Grant
    Filed: November 29, 2006
    Date of Patent: December 14, 2010
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Parminder Agarwal, Rodney W. Fonseca, Songping Liao, Hongtao Shi, Peter H. Vollenberg, Huiping Zhang
  • NEW POLYESTER-POLYCARBONATE COMPOSITIONS
    Publication number: 20090030128
    Abstract: A composition of matter comprising a thermoplastic resin composition derived from (i) a polyester derived from a cycloaliphatic diol, and a cycloaliphatic diacid; (ii) a copolycarbonate derived from at least from 20 mole percent to 80 mole percent of an aromatic diol derived from structure III wherein R3 and R4 are independently selected from the group consisting of C1-C30 aliphatic, C2-C30 cycloaliphatic and C2-C30 aromatic groups, X is CH2 and m is an integer from 3 to 7, n is an integer from 1 to 4, p is an integer from 1 to 4, and from 20 mole percent to 80 mole percent of an aromatic dihydroxy compound; and wherein the resin composition is transparent is disclosed. Also disclosed is a process to prepare this composition and articles therefrom.
    Type: Application
    Filed: July 25, 2007
    Publication date: January 29, 2009
    Inventors: Shreyas Chakravarti, Gabrie Hoogland, Jan-Pleun Lens, Songping Liao, Dake Shen, Huiping Zhang
  • NEW POLYESTER-POLYCARBONATE COMPOSITIONS
    Publication number: 20090030129
    Abstract: A composition of matter comprising a thermoplastic resin composition derived from (i) a polyester derived from a cycloaliphatic diol, and an aromatic diacid; (ii) a polycarbonate derived from at least from 20 mole percent to 100 mole percent of an aromatic diol derived from structure II wherein R3 and R4 are independently selected from the group consisting of C1-C30 aliphatic, C2-C30 cycloaliphatic and C2-C30 aromatic groups, X is CH2 and m is an integer from 3 to 7, n is an integer from 1 to 4, p is an integer from 1 to 4, and from 0 mole percent to 80 mole percent of a second aromatic dihydroxy compound; and wherein the resin composition is transparent is disclosed. Also disclosed is a process to prepare this composition and articles therefrom.
    Type: Application
    Filed: July 25, 2007
    Publication date: January 29, 2009
    Inventors: Shreyas Chakravarti, Songping Liao, Dake Shen, Huiping Zhang
  • POLYESTER-POLYCARBONATE COMPOSITIONS, METHODS OF MANUFACTURE, AND METHODS OF USE
    Publication number: 20070129506
    Abstract: A composition comprising a polysiloxane polycarbonate block copolymer; a cycloaliphatic polyester; and a polycarbonate that is different from the polycarbonate block copolymer, having a weight average molecular weight of less than about 20,000 Daltons. The compositions have high flow at low temperatures and good impact properties. The compositions are useful for the manufacture of components for handheld electronic devises such as cellular telephones.
    Type: Application
    Filed: November 29, 2006
    Publication date: June 7, 2007
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Hongtao Shi, Songping Liao, Huiping Zhang, Parminder Agarwal, Rodney Fonseca, Peter Vollenberg