Patents Represented by Attorney Royal F. Bright
  • Patent number: 5318851
    Abstract: Curable compositions which are precursors for cured or partially cured light stabilized epoxy resins which are the product of the reaction of some or all of the epoxy groups of an epoxy resin with an N-(2,2,6,6-tetraalkyl-4-piperidinyl)amic acid hydrazide as well as the cured or partially cured reaction products thereof together with processes for their use and articles of manufacture produced thereby are disclosed.
    Type: Grant
    Filed: April 2, 1993
    Date of Patent: June 7, 1994
    Assignee: Elf Atochem N.A., Inc.
    Inventors: Arthur L. Baron, Ronald E. MacLeay, Jennifer P. Kmiec