A low-loss optical fiber core for optical communications is covered with at least one layer of a polylaurolactam copolymer composed of 20 to 98 parts by weight of laurolactam and 80 to 2 parts by weight of a polyamide-forming monomer other than laurolactam, said copolymer having a melting point within a range of 100 DEG C. to 170 DEG C.
申请公布号
DE2914555(C2)
申请公布日期
1983.01.20
申请号
DE19792914555
申请日期
1979.04.10
申请人
DAICEL CHEMICAL INDUSTRIES, LTD., SAKAI, OSAKA, JP
发明人
TAKEUCHI, TADASHI, HIGASHIKURUME, TOKYO, JP;YAMABE, TAIJI, YOKOHAMA, KANAGAWA, JP
