Patents by Inventor Kees de Kraker

Kees de Kraker 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).

  • Polycarbonate compositions
    Patent number: 8022166
    Abstract: Polycarbonate compositions are disclosed. The compositions comprise a polycarbonate polymer (A) having repeating units derived from 2-phenyl-3,3-bis(4-hydroxyphenyl)phthalimidine (PPPBP); a polycarbonate polymer (B) which is different from polymer (A); and an impact modifier (C) which is different from polymer (A) and polymer (B). The resulting composition has an improved combination of properties, particularly heat resistance, low temperature impact performance, and viscosity. Also disclosed are articles formed from such compositions.
    Type: Grant
    Filed: June 23, 2008
    Date of Patent: September 20, 2011
    Assignee: SABIC Innovative Plastics IP B.V.
    Inventors: Kees de Kraker, Andries Adriaan Volkers
  • Polycarbonate compositions
    Patent number: 7935777
    Abstract: Polycarbonate compositions are disclosed. The compositions comprise a polycarbonate polymer (A) having repeating units derived from 2-phenyl-3,3-bis(4-hydroxyphenyl)phthalimidine (PPPBP); a polycarbonate polymer (B) which is different from polymer (A); an impact modifier (C) which is different from polymer (A) and polymer (B); and talc filler (D). The resulting composition has an improved combination of properties, particularly heat resistance, low temperature impact performance, and viscosity.
    Type: Grant
    Filed: June 23, 2008
    Date of Patent: May 3, 2011
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Kees de Kraker, Andries Adriaan Volkers
  • POLYCARBONATE COMPOSITIONS
    Publication number: 20110060106
    Abstract: Polycarbonate compositions are disclosed. The compositions comprise a polycarbonate polymer (A) having repeating units derived from 2-phenyl-3,3-bis(4-hydroxyphenyl)phthalimidine (PPPBP); a polycarbonate polymer (B) which is different from polymer (A); and an impact modifier (C) which is different from polymer (A) and polymer (B). The resulting composition has an improved combination of properties, particularly heat resistance, low temperature impact performance, and viscosity. Also disclosed are articles formed from such compositions.
    Type: Application
    Filed: June 23, 2008
    Publication date: March 10, 2011
    Applicant: SABIC INNOVATIVE PLASTICS IP B.V.
    Inventors: Kees de Kraker, Andries Adriaan Volkers
  • POLYCARBONATE COMPOSITIONS
    Publication number: 20090318604
    Abstract: Polycarbonate compositions are disclosed. The compositions comprise a polycarbonate polymer (A) having repeating units derived from 2-phenyl-3,3-bis(4-hydroxyphenyl)phthalimidine (PPPBP); a polycarbonate polymer (B) which is different from polymer (A); an impact modifier (C) which is different from polymer (A) and polymer (B); and talc filler (D). The resulting composition has an improved combination of properties, particularly heat resistance, low temperature impact performance, and viscosity.
    Type: Application
    Filed: June 23, 2008
    Publication date: December 24, 2009
    Applicant: SABIC INNOVATIVE PLASTICS IP B.V.
    Inventors: Kees de Kraker, Andries Adriaan Volkers