Environmental etch resistant, two-component, coating composition

Details Environmental etch resistant, two-component, coating composition Environmental etch resistant, two-component, coating composition

1991-08-29

1992-08-11

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...

525458, 525424, 525440, 4273855, 427386, 428413, 4284228, 4284231, C08G 1842

Patent

active

051379724

ABSTRACT:
A two component composition suitable for coating a substrate comprises at least one crosslinker having a functionality thereon which is reactive with a functionality on at least one film forming polymer present in a separate component of the composition. The crosslinker comprises at least one member selected from the group consisting of: (1) an isocyanurate of isophorone diisocyanate; (2) a derivative of an isocyanurate of isophorone diisocyanate; (3) a biuret of isophorone diisocyanate; and (4) a derivative of a biuret of isophorone diisocyanate. The composition preferably comprises a blend of the this crosslinker with a second crosslinker, wherein the second crosslinker is at least one member selected from the group consisting of: (1) an isocyanurate of hexamethylene diisocyanate; (2) a derivative of an isocyanurate of hexamethylene diisocyanate; (3) a biuret of hexamethylene diisocyanate; and (4) a derivative of a biuret of hexamethylene diisocyanate. The invention also pertains to a process for coating a substrate using the composition, as well as to a cured coating formed by the process of the present invention.

REFERENCES:
patent: 4288586 (1981-09-01), Bock et al.
Huls Product Information Billetin, Commercial Use.

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