Patents by Inventor Raymond Gerard Hamilton

Raymond Gerard Hamilton 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).

  • Processes for preparing multimodal polymer particle compositions
    Patent number: 6989410
    Abstract: A multimodal polymer particle composition containing two or more populations of polymer particles having a total rubbery weight fraction of less than 90 weight percent is provided. Also disclosed is a process for preparing multimodal polymer particle compositions that can be dried to a powder. Multimodal polymer particle dispersions are disclosed for preparing impact modifiers that can be dried to a powder. Also provided are polymeric compositions having a matrix resin component and impact modifiers prepared from multimodal polymer particles.
    Type: Grant
    Filed: December 2, 2002
    Date of Patent: January 24, 2006
    Assignee: Rohm and Haas Company
    Inventors: Raymond Gerard Hamilton, Morris Christopher Wills, Kirk Harold Moyer, Jennifer Lynn Petoff, Joseph Robert Adamo
  • Multimodal polymer particles and uses thereof
    Patent number: 6884844
    Abstract: A multimodal polymer particle composition containing two or more populations of polymer particles having a total rubbery weight fraction of less than 90 weight percent is provided. Also disclosed is a process for preparing multimodal polymer particle compositions that can be dried to a powder. Multimodal polymer particle dispersions are disclosed for preparing impact modifiers that can be dried to a powder. Also provided are polymeric compositions having a matrix resin component and impact modifiers prepared from multimodal polymer particles.
    Type: Grant
    Filed: December 2, 2002
    Date of Patent: April 26, 2005
    Assignee: Rohm and Haas Company
    Inventors: Raymond Gerard Hamilton, Morris Christopher Wills, Jennifer Lynn Petoff, Joseph Robert Adamo
  • Impact modifier compositions which enhance the impact strength properties and lower the viscosity of melt processed plastics resins and methods of making said compositions
    Patent number: 6730734
    Abstract: The invention provides a composition which increases the impact strength and lowers the viscosity of melt processed plastics resins. In particular the invention relates to an impact modifier composition comprising at least one impact modifier and at least one mineral oil and optionally up to 50% by weight of at least one plastics resin. Methods of making such impact modifier compositions are disclosed, together with a general process for combining at least one oil with at least one impact modifier during the impact modifier manufacturing process.
    Type: Grant
    Filed: December 7, 1999
    Date of Patent: May 4, 2004
    Assignee: Rohm and Haas Company
    Inventors: Raymond Gerard Hamilton, Carlos Alfonso Cruz, Chuen-Shyong Chou, Susan Marie Liwak
  • Multimodal polymer particles and uses thereof
    Publication number: 20030130418
    Abstract: A multimodal polymer particle composition containing two or more populations of polymer particles having a total rubbery weight fraction of less than 90 weight percent is provided. Also disclosed is a process for preparing multimodal polymer particle compositions that can be dried to a powder. Multimodal polymer particle dispersions are disclosed for preparing impact modifiers that can be dried to a powder. Also provided are polymeric compositions having a matrix resin component and impact modifiers prepared from multimodal polymer particles.
    Type: Application
    Filed: December 2, 2002
    Publication date: July 10, 2003
    Inventors: Raymond Gerard Hamilton, Morris Christopher Wills, Jennifer Lynn Petoff, Joseph Robert Adamo
  • Processes for preparing multimodal polymer particle compositions
    Publication number: 20030125420
    Abstract: A multimodal polymer particle composition containing two or more populations of polymer particles having a total rubbery weight fraction of less than 90 weight percent is provided. Also disclosed is a process for preparing multimodal polymer particle compositions that can be dried to a powder. Multimodal polymer particle dispersions are disclosed for preparing impact modifiers that can be dried to a powder. Also provided are polymeric compositions having a matrix resin component and impact modifiers prepared from multimodal polymer particles.
    Type: Application
    Filed: December 2, 2002
    Publication date: July 3, 2003
    Inventors: Raymond Gerard Hamilton, Morris Christopher Wills, Kirk Harold Moyer, Jennifer Lynn Petoff, Joseph Robert Adamo