Photochromic compositions containing bleaching rate accelerators
United States Patent 3355294

Inventors:
Arthur, Giddings Sydney
Publication Date:
11/28/1967
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Assignee:
AMERICAN CYANAMID CO
Primary Class:
430/339
Other Classes:
430/341, 359/241, 122/4R, 430/962
International Classes:
C08G2/00; C08K5/56; C08L67/00; C08L75/04; G03C1/73; C08K5/00; C08L75/00
Other References:
None