公开(公告)号：EP0246613A3

公开(公告)日：1990-09-19

申请号：EP87107271.6

申请日：1987-05-19

申请人： HITACHI, LTD.

发明人： Taketani, Noriaki ,  Tanno, Seikichi ,  Eguchi, Shuji ,  Okabe, Yoshiaki ,  Terao, Hiromu ,  Shimura, Masato ,  Asano, Hideki ,  Abe, Tomiya

IPC分类号： C08F20/18 ,  G02B1/04

CPC分类号： G02B6/02033 ,  G02B1/046 ,  C08L33/06

摘要： The plastic optical fiber of this invention has a core comprising a copolymer which comprises, as the essential constituents, a (meth)acrylic ester I represented by the following formula [I]
wherein R₁ denotes hydrogen or methyl; a (meth)acrylic ester II represented by the following formula [II]
wherein R2₂denotes hydrogen or methyl, and R₃ denotes C₁-C₈ alkyl, cycloalkyl, or aromatic group; and a multifunctional monomer. The core being formed by heat-curing of the thermosetting resin composition, it provides for a plastic optical fiber with an effect of excellency in the thermal resistance and the mechanical strength. Further, since a fibered polymer can be obtained without a drawing step according to this inven­tion, it gives also an effect of decreasing the light transmission loss caused by a drawing step for plastic optical fibers of the prior art.

公开(公告)号：EP0226020A2

公开(公告)日：1987-06-24

申请号：EP86115271.8

申请日：1986-11-04

申请人： HITACHI, LTD.

发明人： Eguchi, Shuji ,  Taketani, Noriaki ,  Tanno, Seikichi ,  Okabe, Yoshiaki ,  Terao, Hiromu ,  Asano, Hideki ,  Wajima, Motoyo ,  Abe, Tomiya

IPC分类号： G02B6/16 ,  D01F8/10

CPC分类号： D01F8/10 ,  G02B6/02033

摘要： A plastic optical fiber comprising a core and a clad, said core being formed by an amorphous and optically transparent polymer and said clad being formed by a polymer having a refractive index lower than that of the core by at least 0.3%, at least one of the core and the clad being formed by an amorphous and optically transparent polymer containing metal elements and halogen atoms, is low in light loss and excellent in heat resistance.

公开(公告)号：EP0108985B1

公开(公告)日：1986-10-15

申请号：EP83110838.6

申请日：1983-10-28

申请人： HITACHI, LTD.

发明人： Eguchi, Shuji ,  Taketani, Noriaki ,  Asano, Hideki ,  Wajima, Motoyo

IPC分类号： C08F220/04 ,  G02B1/04 ,  B29D11/00

CPC分类号： C08F220/04 ,  G02B1/04