EP0126428A2
Expired / Lapsed
EP
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Plastic optical fiber
Assignee: Sumitomo Electric Industries Ltd
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Filing: 1984-05-16
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Granted: —
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Expires: 2004-05-16
Abstract
Abstract A plastic optical fiber comprising a core consisting of an amorphous transparent polymer, a cladding consisting of a transparent polymer having lower refractive index than that of the core polymer and surrounding the core, and a covering consisting of a fiber reinforced plastics surrounding the cladding, which has good heat resistance and mechanical strength.
Inventors
- 👤 Yoshinobu C/O Osaka Works Ueba
- 👤 Norifumi C/O Osaka Works Matsumiya
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-31 19:03
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/44; G02B6/4401; G02B6/4429; G02B6/4436; G02B1/00; G02B1/04; G02B1/045; G02B6/02; G02B6/02033; G02B6/4402; B; B29; B29C; B29C48/00; B29C48/03; B29C48/05
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
46 words
A plastic optical fiber comprising a core consisting of an amorphous transparent polymer, a cladding consisting of a transparent polymer having lower refractive index than that of the core polymer and surrounding the core, and a covering consisting of a fiber reinforced plastics surrounding the cladding.
Claim 2
Dependent Claim
46 words
A plastic optical fiber comprising a core consisting of an amorphous transparent polymer, a cladding consisting of a transparent polymer having lower refractive index than that of the core polymer and surrounding the core, and a covering consisting of a fiber reinforced plastics surrounding the cladding.
Claim 3
Dependent Claim
42 words
A plastic optical fiber according to claim 1, wherein the amorphous transparent polymer is one selected from the group consisting of polymethyl methacrylate, polystyrene, polycarbonate, deuterated polymethyl methacrylate, deuterated polystyrene, deuterated polycarbonate, copolymer of alkyl methacrylate and at least one other monomer.
Claim 4
Dependent Claim
53 words
A plastic optical fiber according to claim 1, wherein, the transparent polymer having the lower refractive index than that of the core is a polymer selected from the group consisting of polyvinylidene fluoride, vinylidene fluoride/tetrafluoroethylene copolymer, vinylidene fluoride /tetrafluoroethylene/hexafluoropropylene terpolymer, fluorine-containing methacrylate polymer, fluorine-containing methacrylate/methyl methacrylate copolymer, silicone resin and ethylene/vinyl acetate copolymer.
Claim 5
Dependent Claim
33 words
A plastic optical fiber according to claim 1, wherein the matrix of the fiber reinforced plastics comprises a polymer selected from the group consisting of thermoplastic resin, thermosetting resin and ultraviolet curing resin.
Claim 6
Dependent Claim
29 words
A plastic optical fiber according to claim 4, wherein the thermoplastic resin is one selected from the group consisting of polystyrene, ABS resin, polyamide, polyacetal, polycarbonate and polyphenylene oxide.
Claim 7
Dependent Claim
29 words
A plastic optical fiber according to claim 4, wherein the thermosetting resin is one selected from the group consisting of phenol resin, melamine resin, polyester resin and epoxy resin.
Claim 8
Dependent Claim
34 words
A plastic optical fiber according to claim 4, wherein the ultraviolet curing resin is one selected from the group consisting of epoxy acrylate, urethane acrylate, silicone acrylate and epoxy resin reactive to Lewis acid.
Claim 9
Dependent Claim
33 words
A plastic optical fiber according to claim 5, wherein the thermosetting resin is epoxy resin curable at a room temperature which contains, as a curing agent, an amine-type curing agent or benzophenotetracarboxylic anhydride.
Claim 10
Dependent Claim
29 words
A plastic optical fiber according to claim 8, wherein the amine-type curing agent is one selected from the group consisting of diethylenetriamine, triethylenetetraamine, N-aminoethylpiperazine, benzyldimethylamine, dicyane- diamide and xylilenediamine.
References Cited (Backward Citations)
No citation records indexed.
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