Strippable coatings for optical fiber

Details Strippable coatings for optical fiber Strippable coatings for optical fiber

C - Chemistry, Metallurgy

03

C

400/5154, 204/91

C03C 25/10 (2006.01) G02B 6/02 (2006.01)

Patent

CA 1208837

STRIPPABLE COATINGS FOR OPTICAL FIBERS ABSTRACT Radiation-curable coating compositions particularly adapted to reduce the adhesion of the radiation-cured coatings to glass optical fibers (and thereby enhance strippability) are disclosed. These comprise a radia- tion-curable polyethylenic organic compound and from about 2% to about 20% of the coating composition of an organic polysiloxane carrying a plurality of hydroxy- terminated groups which are joined to some of the sili- con atoms in the polysiloxane chain by a carbon-to-sili- con bond. The polysiloxane reduces the adhesion of the radiation-cured coating to the glass surface of the fiber. Ultraviolet cures using acrylates as the ethylenic group are preferred.

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