G - Physics – 02 – B
Patent
G - Physics
02
B
18/103, 402/248,
G02B 1/04 (2006.01) C08F 214/18 (2006.01) C08F 234/02 (2006.01)
Patent
CA 1339175
A core-cladding optical fiber having a plastic cladding composed of-an amorphous copolymer having a single glass transition temperature of at least 125°C but lower than 140°C is described. The amorphous copolymer comprises (a) units derived from a fluorodioxole represented by the formula [I]: (see fig.I) wherein R and R' are ~luorine or trifluoromethyl, and (b) units derived from at least one monomer selected from tetrafluoroethylene, chlorotrifluoroethylene, Rf - CF = CF2 (in which Rf is a primary fluoroalkyl group having 1 to 5 carbon atoms) and Rg - OCF = CF2 (in which Rg is a primary fluoroalkyl group having 1 to 5 carbon atoms or a primary fluoroalkyl group having 4 to 12 carbon atoms as a whole and oxygen of an ether bond).
600885
Mcfadden Fincham
Mitsubishi Rayon Company Ltd.
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