Secondary coating compositions for glass fibers, glass fibers co

Details Secondary coating compositions for glass fibers, glass fibers co Secondary coating compositions for glass fibers, glass fibers co

1995-01-23

1997-09-30

Dean, Karen A.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

523212, 524863, 524837, 428378, 428391, 428392, C08K 906, D02G 300

Patent

active

056726414

ABSTRACT:
The present invention includes aqueous coating compositions adapted to coat a plurality of sized glass fibers, glass fibers coated with the same and composites reinforced with the coated glass fibers. The coating composition includes (a) a polysiloxane having: (1) an alkyl substituent attached through a carbon atom directly to a silicon atom of the polysiloxane; (2) an alkoxy substituent attached through a carbon atom directly to a silicon atom of the polysiloxane, the alkoxy substituent having an alkyl group, an alkyl ether group and a terminal group selected from the group consisting of hydrogen and an alkoxy group having about 1 to about 8 carbon atoms; and (3) endblocking groups independently selected from the group consisting of a phenyl group, an alkyl group having about 1 to about 20 carbon atoms and combinations thereof, wherein the polysiloxane is essentially free of silicon-bonded hydroxy groups and alkoxy groups attached through an oxygen atom directly to a silicon atom of the polysiloxane, and (b) zero to less than about 50 weight percent on a total solids basis of a film-forming material capable of forming a uniform continuous coating on the glass fibers.

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