Patents Examined by May C. Lee
  • Photopolymerization sensitizers active at longer wavelengths
    Patent number: 4987230
    Abstract: A new class of sensitizers for photopolymerizable compositions is disclosed derived from cyclic ketones and tricyclic aminoaldehydes.
    Type: Grant
    Filed: December 8, 1989
    Date of Patent: January 22, 1991
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Bruce M. Monroe