Coating composition for the surface treatment of a rubber articl

Details Coating composition for the surface treatment of a rubber articl Coating composition for the surface treatment of a rubber articl

1994-12-23

1996-06-18

Marquis, Melvyn I.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524588, 524869, 525477, 528 38, C08K 320, C08L 6302

Patent

active

055278418

ABSTRACT:
Disclosed is a silicone-based coating composition in the form of an aqueous dispersion of organopolysiloxanes suitable for the surface treatment of a rubber article to impart the surface with excellent lubricity and abrasion resistance so as to be useful for upgrading, for example, wind shields in automobiles. The coating composition comprises, as the effective ingredients, four organopolysiloxanes each in the form of an aqueous dispersion or solution including (a) an organopolysiloxane having a branched molecular structure consisting of two types of the siloxane units of the general formulas R.sup.1.sub.2 SiO and R.sup.1 SiO.sub.1.5, in which R.sup.1 is a monovalent hydrocarbon group, (b) a hydrolysis-condensation product of an epoxy group-containing dialkoxy silane compound, (c) a hydrolysis-condensation product of an aminoalkyl group-containing dialkoxy silane compound and (d) cured silicone rubber particles in a specified proportion.

REFERENCES:
patent: 4252933 (1981-02-01), Sumida
patent: 4652618 (1987-03-01), Sumida
patent: 5246995 (1993-09-01), Murakami et al.
patent: 5270110 (1993-12-01), Murakami et al.

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