Single coated optical fiber

Details Single coated optical fiber Single coated optical fiber

C - Chemistry, Metallurgy

03

B

204/91.49

C03B 25/02 (2006.01) B05D 3/06 (2006.01) C03C 25/10 (2006.01) C08F 299/06 (2006.01) C08G 18/10 (2006.01) C08G 18/67 (2006.01)

Patent

CA 1198083

SINGLE-COATED OPTICAL FIBER ABSTRACT Radiation-curable coating compositions particularly adapted for the single coat coating of optical fibers are disclosed. These comprise (1) from 65% to 85% of a diethylenic-terminated polyurethane, which may contain urea groups, the polyurethane being based on a diisocyanate having an average mole- cular weight of from 400 to 5000; and (2) from 5% to 25% of an ether of a C2-C4 alkyl ester of a monoethylenically unsaturated monocarboxylic acid, the ether being selected from the group consisting of ethoxyethyl, dicyclopentenyl, phenyl, and mixtures thereof. Ethoxyethoxyethyl acrylate is particularly pre- ferred. A triacrylate ester, such as trimethylol propane triacrylate, is also desirably present.

439680

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