Patents Examined by Khiellion S. Morgan
  • Polysubstituted N-hydrocarbyloxy hindered amine light stabilizers
    Patent number: 5189086
    Abstract: Polysubstituted N-hydrocarbyloxy hindered amines are effective light stabilizers in protecting organic substrates against the deleterious effects of actinic light.
    Type: Grant
    Filed: March 26, 1991
    Date of Patent: February 23, 1993
    Assignee: Ciba-Geigy Corporation
    Inventor: James P. Galbo