Stock material or miscellaneous articles – Composite – Of epoxy ether
Patent
1985-08-19
1987-03-17
Lusignan, Michael R.
Stock material or miscellaneous articles
Composite
Of epoxy ether
4274071, 427410, 428414, 428416, 428418, 528112, B05D 136, B05D 700, B32B 1508, B32B 2738
Patent
active
046507183
ABSTRACT:
A color-plus-clear coating system is disclosed. A pigmented or colored base coat is first applied to a substrate followed by the application of a transparent top coat to the base coat. Either the transparent top coat, the base coat or both the top coat and base coat compositions are crosslinkable compositions comprising a polyepoxide and a polyacid curing agent which comprises a half-ester formed from reacting an acid anhydride with a polyol. The polyepoxide-polyacid curing agent in the transparent top coat provides a composite coating with outstanding gloss and distinctness of image making the composite coating particularly useful as an automotive top coat.
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Handbook of Epoxy Resins, by Lee and Neville, McGraw-Hill Book Co., 1967, Chapter 11.
Blackburn William P.
Dowbenko Rostyslaw
Kania Charles M.
Simpson Dennis A.
Singer Debra L.
Lusignan Michael R.
PPG Industries Inc.
Uhl William J.
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