Patents Assigned to General Electric Plastics
  • High molecular weight stabilizer compounds for stabilizing polymers
    Patent number: 5523379
    Abstract: A high molecular weight stabilizer compound formed as an ester of 3-(2H-benzotriazol-2-yl)-5-(1,1-dimethylethyl)-4-hydroxy-benzene-propanoic acid, or structural variants thereof, to impart improved resistance to the effects of ultraviolet radiation to polycarbonate comprising polymers, a process for the preparation of said compound, and articles of manufacture comprising said compound.
    Type: Grant
    Filed: December 21, 1994
    Date of Patent: June 4, 1996
    Assignee: General Electric Plastics
    Inventor: Niles R. Rosenquist