Environmental etch resistant, one-component, coating composition

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

1992-07-14

1993-08-24

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...

525424, 525440, 525457, 525458, 4273881, 4273882, 4284228, C08G 1880

Patent

active

052389995

ABSTRACT:
A one component composition suitable for coating a substrate, including at least one crosslinker having a functionality thereon that is reactive with a functionality on at least one film forming polymer. The crosslinker includes at least one member selected from the group consisting of: blocked isocyanurates of isophorone diisocyanate; derivatives of blocked isocyanurates of isophorone diisocyanate; blocked biurets of isophorone diisocyanate; derivatives of blocked biurets of isophorone diisocyanate. The composition preferably includes a blend of this crosslinker with a second crosslinker, wherein the second crosslinker is at least one member selected from the group consisting of: blocked isocyanurates of hexamethylene diisocyanate; derivatives of blocked isocyanurates of hexamethylene diisocyanate; blocked biurets of hexamethylene diisocyanate; and derivatives of blocked biurets 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: 4442145 (1984-04-01), Probsh et al.
patent: 4532300 (1985-07-01), Leny et al.
patent: 4920008 (1990-04-01), Barbee

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