Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1981-07-02
1983-04-12
Pertilla, Theodore E.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525110, 525157, 525443, 525511, 525514, C08L 6128, C08L 6124
Patent
active
043798861
ABSTRACT:
A thermosetting coating composition having a binder of a film forming polymer having reactive hydroxyl groups, epoxy groups or methylol groups and a melamine, benzoguanamine or urea crosslinking agent and about 0.1-10% by weight of reactive catalyst which is a solid at 30.degree. C. in which the catalyst has one of the following structures: ##STR1## or mixtures of the above; where R is an alkyl group or a hydroxy alkyl group having 1-18 carbon atoms; the catalyst is prepared by reacting in a 1:1 molar ratio trimellitic anhydride and an aliphatic monohydric alcohol or an aliphatic diol.
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McLaughlin Joseph E.
Strickland George A.
E. I. Du Pont de Nemours and Company
Fricke Hilmar L.
Pertilla Theodore E.
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