Patents by Inventor Susan A. M. May

Susan A. M. May 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).

  • Toughened thermoplastics
    Patent number: 5043392
    Abstract: Functionalized thermoplastics such as styrene-maleic anhydride copolymers polystyrene or maleated polyolefins may be thoughened with halogenated rubbers which are copolymers of isoprene and isobutylene provided a dialkyl or dihydroxyalkyl amino alkanol is present as a compatibilizer. The toughened thermoplastics have about a two fold increase in IZOD impact resistance.
    Type: Grant
    Filed: January 22, 1990
    Date of Patent: August 27, 1991
    Assignee: Polysar Limited
    Inventors: James Lunt, Susan A. M. May, Patricia A. Leivo
  • Toughened thermoplastics
    Patent number: 4921910
    Abstract: Functionalized thermoplastics such as styrene-maleic anhydride copolymers or maleated polyolefins may be toughened with halogenated rubbers which are copolymers of isoprene and isobutylene provided a dialkyl or dihydroxyalkyl amino alkanol is present as a compatibilizer. The toughened thermoplastics have about a two fold increase in IZOD impact resistance.
    Type: Grant
    Filed: April 19, 1989
    Date of Patent: May 1, 1990
    Assignee: Polysar Limited
    Inventors: James Lunt, Susan A. M. May, Patricia A. Leivo