Process for producing powdery paint additive comprising reacting

Details Process for producing powdery paint additive comprising reacting Process for producing powdery paint additive comprising reacting

1986-05-14

1987-08-11

Welsh, Maurice J.

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

Synthetic resins

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

528502, C08L17500

Patent

active

046862617

ABSTRACT:
A process for producing a powdery paint additive, comprising by reacting (a) a polymerized fatty acid polyamide resin formed by the reaction of a polymerized fatty acid with a polyamine and soluble in an organic solvent, (b) a fluororesin having a hydroxyl group in its molecular structure and soluble in an organic solvent and (c) a polyisocyanate which functions as a hardening agent for the resins (a) and (b) and which is soluble in an organic solvent to thereby form a hardened reaction product, the reaction being carried out in an organic solvent inert to an isocyanate group, and pulverizing the resulting reaction product.
The powdery paint additive thus obtained can be incorporated in various paints to improve the abrasion and weather resistances of a formed paint film and to form a solid decorative pattern on the paint film surface by a single painting operation.

REFERENCES:
patent: 3917741 (1975-11-01), McGarr
patent: 4536557 (1985-08-01), Heyman

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