Patents Examined by Thomas De Benedictus, Sr.
  • Low profile additives in polyester systems
    Patent number: 4100229
    Abstract: Polymerizable polyester molding compositions having good shrinkage control comprise (1) a polymerizable polyester, and (2) a low profile additive comprising the reaction product of a styrene-maleic anhydride copolymer and a polydiene having terminal hydroxyl groups.
    Type: Grant
    Filed: May 2, 1977
    Date of Patent: July 11, 1978
    Assignee: Hooker Chemicals & Plastics Corp.
    Inventor: Willis T. Schwartz, Jr.