Compositions: coating or plastic – Materials or ingredients – Pigment – filler – or aggregate compositions – e.g. – stone,...
Patent
1992-11-18
1994-07-05
Green, Anthony
Compositions: coating or plastic
Materials or ingredients
Pigment, filler, or aggregate compositions, e.g., stone,...
106400, 106401, 811565, 4283179, C08K 722, C04B 1608
Patent
active
053263910
ABSTRACT:
The tendency of microporous material to discolor over a period of time when exposed to the atmosphere during normal usage can be reduced if the microporous material comprises whiteness retaining organic surface active agent.
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Anderson Barbara J.
Benenati Paul L.
Johnson Harlan B.
Rechlicz Thomas A.
Williams William A.
Green Anthony
Hertzog Scott L.
Morris George D.
PPG Industries Inc.
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