Thermoset coating compositions having improved hardness

Details Thermoset coating compositions having improved hardness Thermoset coating compositions having improved hardness

1994-12-27

1996-07-16

Clark, W. Robinson H.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525418, 525442, 525451, 525462, 525465, 525509, 525519, C08L 6128, C08L 6702, C08L 3302

Patent

active

055367941

ABSTRACT:
The present invention provides for amino-crosslinkable coating formulations based on a mixture of a di or polyhydroxy functional polymeric component selected from the group consisting of diesters, polyesters, alkyd polymers, acrylic polymers and polycarbonate polymers, a methylol (alkoxymethyl) amino crosslinking agent and a bis-aromatic polyhydric phenol component having the structure of formula I: ##STR1## wherein X is selected from the group consisting of carbon to carbon covalent bond, oxygen, sulfur, --S--S--, --CO--, --SO--, --SO.sub.2 -- and a divalent organic radical having a molecular weight less than about 400, and wherein Y is independently selected from the group consisting of hydrogen, halogen, C.sub.1 to C.sub.4 alkyl and C.sub.1 to C.sub.4 alkoxy.

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