Transparent coating of flexible, elastic polyurethane for transp

Details Transparent coating of flexible, elastic polyurethane for transp Transparent coating of flexible, elastic polyurethane for transp

1987-02-20

1988-05-17

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...

524850, 528 71, 528 77, C08G 1838

Patent

active

047451521

ABSTRACT:
A transparent coating for windows or other transparent substrates made of glass or synthetic resin, consisting of a flexible elastic polyurethane, serves as a shatterproofing coating for substrates made of silicate glass or as a coating improving the scratch resistance of substrates made of synthetic resin. To reduce or prevent the formation of a deposit of moisture on the surface of the coating, the polyol component of the reaction mixture for preparing a coating pursuant to the invention consists of a difunctional sulfonated polyether polyol containing approximately 1 to 10% of OH groups by weight and a trifunctional polyol containing approximately 8 to 12% of OH groups by weight and having an average molecular weight of approximately 400 to approximately 1000 g/mole.

REFERENCES:
patent: 4108814 (1978-08-01), Reiff et al.

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