Transparent coating layer with self-repairng and fog-resistant p

Details Transparent coating layer with self-repairng and fog-resistant p Transparent coating layer with self-repairng and fog-resistant p

1985-12-06

1987-08-04

Welsh, Maurice J.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524765, 524769, 524773, 528 73, 528 76, 528 77, C08G 1872

Patent

active

046846948

ABSTRACT:
A high optical quality polyurethane coating layer, with self-repairing and fog-resistant properties, utilized for panes made of glass and/or plastic materials. The layer is formed from a reactive mixture composed 10 to 75% by weight of a biuret or an isocyanurate of 1,6 hexamethylenediisocyanate, having a content of about 15 to 25% weight of NCO radicals and having an average molecular weight between about 450 and 850 and comprised about 90 to 25% by weight of a polyalcohol component essentially comprised of a plurifunctional polyalcohol having about 0.4 to 17% of its percentage weight comprised of OH radicals, and having a molecular weight between about 200 and 15,000, and having ethoxy-propoxy chains, comprised 50 to 90% by weight of ethoxy radicals and 50 to 10% by weight of propoxy radicals.

REFERENCES:
patent: Re32224 (1986-08-01), Schafer et al.
patent: 3655432 (1972-11-01), Hauslein et al.
patent: 3979548 (1976-08-01), Schafer et al.
patent: 4584229 (1986-04-01), Bourellen et al.
patent: 4584325 (1986-04-01), Smith

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