Cladding material for optical fiber

Details Cladding material for optical fiber Cladding material for optical fiber

1988-07-29

1989-06-06

Sikes, William L.

Optics: measuring and testing

Range or remote distance finding

With photodetection

350 9630, 350 9610, 356 731, 427163, 428364, 428383, 5263297, G02B 600, G01N 2100, B05D 506, C08F12018

Patent

active

048366420

ABSTRACT:
A cladding material for an optical fiber is described, which is made of a polymer comprised of (A) 10-90 wt. % of a long-chain fluoroalkyl group-containing monomer of the formula: ##STR1## wherein F is F, CH.sub.3 or CF.sub.3, and n is an integer from 5 to 11, (B) 5-90 wt. % of a short-chain fluoroalkyl group-containing monomer of the formula: ##STR2## wherein Y is as defined above, X is F, CH.sub.3 or CF.sub.3, and m is an integer of from 1 to 4, and (C) 0-50 wt. % of other copolymerizable monomer. The melt flow index indicating the amount in gram of the polymer extruded for 10 minutes from a nozzle with an orifice having an inner diameter of 2 mm and a length of 8 mm under the conditions of a temperature of 230.degree. C. and a load of 5 kg, is not larger than 30.

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