-
公开(公告)号：DE69117450D1
公开(公告)日：1996-04-04
申请号：DE69117450
申请日：1991-03-15
Applicant: TORAY INDUSTRIES
Inventor： MATSUNAGA TADAYO , SUGANUMA HEIROKU , FUKUDA TADANORI , NAKAMURA GENZABURO
IPC: G02B6/00 , C08F20/22 , C08F34/00 , C08F220/22 , C08F222/40 , G02B1/04 , C03C25/02
Abstract: A cladding material for plastic optical fibers is at least mainly a copolymer comprising 70-99.8wt.% of a fluoroalkyl methacrylate and 30-0.2wt.% of an N-aliphatic maleimide as monomer units. The cladding material has low refractive index and high thermal stability, so that an optical fiber with a large acceptance angle can be obtained.
-
公开(公告)号：DE69117450T2
公开(公告)日：1996-09-05
申请号：DE69117450
申请日：1991-03-15
Applicant: TORAY INDUSTRIES
Inventor： MATSUNAGA TADAYO , SUGANUMA HEIROKU , FUKUDA TADANORI , NAKAMURA GENZABURO
IPC: G02B6/00 , C08F20/22 , C08F34/00 , C08F220/22 , C08F222/40 , G02B1/04 , C03C25/02
Abstract: A cladding material for plastic optical fibers is at least mainly a copolymer comprising 70-99.8wt.% of a fluoroalkyl methacrylate and 30-0.2wt.% of an N-aliphatic maleimide as monomer units. The cladding material has low refractive index and high thermal stability, so that an optical fiber with a large acceptance angle can be obtained.
-
公开(公告)号：DE3788504D1
公开(公告)日：1994-01-27
申请号：DE3788504
申请日：1987-10-01
Applicant: TORAY INDUSTRIES
Inventor： SUGANUMA HEIROKU , TANEICHI SHOSHIRO , MATSUNAGA TADAYO , KOBAYASHI HISAAKI
Abstract: An optical fibre of sheath-core structure has for its core a copolymer which includes an aliphatic N-substituted maleimide as a monomer unit, and preferably methyl methacrylate as a further monomer unit. Such optical fibres have high light transmittance, good mechanical characteristics and an excellent heat-resisting durability.
-
公开(公告)号：DE3788504T2
公开(公告)日：1994-05-19
申请号：DE3788504
申请日：1987-10-01
Applicant: TORAY INDUSTRIES
Inventor： SUGANUMA HEIROKU , TANEICHI SHOSHIRO , MATSUNAGA TADAYO , KOBAYASHI HISAAKI
Abstract: An optical fibre of sheath-core structure has for its core a copolymer which includes an aliphatic N-substituted maleimide as a monomer unit, and preferably methyl methacrylate as a further monomer unit. Such optical fibres have high light transmittance, good mechanical characteristics and an excellent heat-resisting durability.
-
Patent Agency Ranking
公开(公告)号：CA2038543A1
公开(公告)日：1992-05-31
申请号：CA2038543
申请日：1991-03-18
Applicant: TORAY INDUSTRIES
Inventor： MATSUNAGA TADAYO , SUGANUMA HEIROKU , FUKUDA TADANORI , NAKAMURA GENZABURO
IPC: G02B6/00 , C08F20/22 , C08F34/00 , C08F220/22 , C08F222/40 , G02B1/04 , G02B6/02
Abstract: CLADDING MATERIAL FOR OPTICAL, FIBER AND METHOD FOR ITS MANUFACTURE A cladding material for plastic optical fibers is disclosed. The cladding material comprises mainly a copolymer comprising a fluoroalkyl methacrylate and an N-aliphatic maleimide as monomer units. The cladding material has low refractive index and high thermal stability, so that an optical fiber with a large acceptance angle can be obtained.
-
公开(公告)号：CA1275158C
公开(公告)日：1990-10-16
申请号：CA548323
申请日：1987-10-01
Applicant: TORAY INDUSTRIES
Inventor： SUGANUMA HEIROKU , TANEICHI SHOSHIRO , KOBAYASHI HISAAKI , MATSUNAGA TADAYO
Abstract: HEAT RESISTING OPTICAL FIBER AND METHOD FOR ITS PRODUCTION An optical fiber of sheath-core structure has for its core a copolymer which includes an aliphatic N-substituted maleimide as a monomer unit, and preferably methyl methacrylate as a further monomer unit. Such optical fiber have high light transmittance, good mechanical characteristics and an excellent heat-resisting durability.
-
公开(公告)号：JPS63198004A
公开(公告)日：1988-08-16
申请号：JP2970787
申请日：1987-02-13
Applicant: TORAY INDUSTRIES
Inventor： SUGANUMA HEIROKU , MATSUNAGA TADAYO , KOBAYASHI HISAAKI
Abstract: PURPOSE:To obtain the excellent translucent and mechanical properties of the titled fiber and to improve the heat-resisting property of the titled fiber by controlling the total of carboxylic group and carboxylic acid anhydride contd. in a polymer of a core component to
-
公开(公告)号：JPS57136602A
公开(公告)日：1982-08-23
申请号：JP2219581
申请日：1981-02-19
Applicant: TORAY INDUSTRIES
Inventor： FUKUDA TADANORI , MATSUNAGA TADAYO
IPC: G02C7/04 , C08F20/52 , C08F20/58 , C08F290/00 , C08F299/00 , C08F299/06 , G02B1/04
Abstract: PURPOSE:To provide a titled lens having high transparency and impact resistance by using an urethane resin obtd. by addition polymn. of the product of reaction of an isocyanate compd. and an unsatd. compd. contg. a hydroxy group as a blank material and providing prescribed optical properties. CONSTITUTION:An urethane resin obtd. by addition polmn. of the product of reaction of an isocyanate compd. and an unsatd. compd. contg. a hydroxyl group is used as a blank material. The various properties of the resultant plastic are changed by selecting the amts. of compounding of both components, reaction temp. and reaction time variously and therefore the lens is made to have refractive index ND=1.45-1.70 (values at 20 deg.C) and Abbe number nu=35-60 by selecting these, whereby the lens having high transparency and impact resistance is obtd.
-
公开(公告)号：JPS57136601A
公开(公告)日：1982-08-23
申请号：JP2219481
申请日：1981-02-19
Applicant: TORAY INDUSTRIES
Inventor： FUKUDA TADANORI , MATSUNAGA TADAYO
Abstract: PURPOSE:To provide a titled lens having high transparency and impact resistance by using an urethane resin obtd. by the reaction of an isocyanate compd. and a hydroxy compd. as a blank material and providing prescribed optical characteristics. CONSTITUTION:An urethane resin obtd. by causing an isocyanate compd. and a hydroxy compd. to react is used as a blank material. The properties thereof varies with the compounding ratios of both components, reaction temp. and reaction time; for example, it has the properties shown in the table. Hence, these compounding ratios and reaction conditions are so set that the refractive index attains nD=1.45-1.70 (values at 20 deg.C) and Abbe number nu=35-60. Thereby, the lens having high transparency and impact resistance is obtd.
-
-
-
-
-
-
-
-
Search Results
9
records
(took 0.02 seconds)
