Polyvinyl acetals
United States Patent 2310943

Inventors:
Lowrance, Dorough George
Holly, Oak
Malcolm, Mcqueen David
Publication Date:
02/16/1943
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Assignee:
Pont DU.
Primary Class:
525/56
Other Classes:
534/556, 549/370, 430/381, 524/25, 524/22, 8/DIG.010, 524/26, 525/61, 534/558
International Classes:
C08F8/00; C08F8/28; G03C7/327