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1. 发明授权

US5080508A Plastic optical fibers 失效
公开(公告)号：US5080508A
公开(公告)日：1992-01-14
申请号：US686939
申请日：1991-04-18
申请人： Hiroaki Onishi , Takashi Yamamoto , Katsuhiko Shimada
发明人： Hiroaki Onishi , Takashi Yamamoto , Katsuhiko Shimada
IPC分类号： G02B6/00 , C08F16/14 , C08F16/24 , G02B1/04
CPC分类号： G02B6/02033 , G02B1/046 , G02B1/048
摘要： A plastic optical fiber comprising a fluorine-containing core polymer consisting essentially of 1) a group (A) of repeating units having a cyclic structure represented by general formula (I) and/or general formula (II); or 2) the group (A) above and group (B) of repeating units represented by general formula (III) wherein the content of the group (A) in the core polymer is at least 80 wt %; and a clad copolymer of perfluoro(2,2-dimethyl-1,3-dioxole) and at least one other ethylenically unsaturated monomer having a refractive index below that of the core polymer. ##STR1## (wherein n is 1 or 2)--CF.sub.2 --CFX (III)(wherein X is F, Cl, O--CF.sub.2 CF.sub.2 CF.sub.3, O--CF.sub.2 CF(CF.sub.3)OCF.sub.2 CF.sub.2 SO.sub.2 F, or O--CF.sub.2 CF.sub.2 CF.sub.2 COOCH.sub.3)This plastic optical fiber has heat-resistance and very few water-absorbing properties, and can transmit not only visible rays but also rays having wavelengths in the near infrared region.

2. 发明授权

US5223561A Polymer composition and optical fiber having cladding composed of that composition 失效
标题翻译：聚合物组合物和具有由该组成构成的包层的光纤
公开(公告)号：US5223561A
公开(公告)日：1993-06-29
申请号：US802858
申请日：1991-12-06
申请人： Takashi Yamamoto , Tsuruyoshi Matsumoto , Tadao Kobayashi , Katsuhiko Shimada
发明人： Takashi Yamamoto , Tsuruyoshi Matsumoto , Tadao Kobayashi , Katsuhiko Shimada
IPC分类号： C08K5/00 , G02B1/04
CPC分类号： G02B6/02033 , C08K5/0008 , G02B1/048
摘要： Disclosed is a polymer composition comprising (I) 60 to 99.8 wt. % of an amorphous copolymer comprising (a) units derived from perfluoro-2,2-dimethyl-1,3-dioxole and (b) units derived from at least one ethylenically unsaturated monomer selected from ethylene, tetrafluoroethylene, chlorotrifluoroethylene, and CF.sub.2 .dbd.CFOCF.sub.3, and (II) 0.2 to 40 wt. % of a compound having a hydrocarbon group containing at least one fluorine atom and at least one functional group selected from --OH, --SR, --COOH, --SO--, --SO.sub.2 --, --CONH--, --COO--CO--, --CONHCO--, --COO--, --CN, --NCO, --CO--, --HCOO--, --NH.sub.2 --, --NH--, .dbd.N, --SO.sub.3 H, --NHNH.sub.2, --CONH.sub.2, --CH.dbd.CH.sub.2, --CH.dbd.CH--, (RO).sub.n X.sub.3-n Si--, wherein R is a C.sub.1-5 alkyl group, n is a number of 0 to 3, and X is halogen or a C.sub.1-5 alkyl group. The polymer composition is useful for a plastic cladding of an optical fiber.
摘要翻译：公开了一种聚合物组合物，其包含（I）60至99.8wt。％的无定形共聚物，其包含（a）衍生自全氟-2,2-二甲基-1,3-二氧杂环戊烯的单元和（b）衍生自至少一种选自乙烯，四氟乙烯，三氟氯乙烯和CF 2 = CFOCF 3中的烯属不饱和单体的单元，和（II）0.2〜40重量％具有含有至少一个氟原子的烃基和至少一个选自-OH，-SR，-COOH，-SO - ， - SO 2 - ， - CONH - ， - COO - CO - 的官能团的化合物的％ CONHCO-，-COO-，-CN，-NCO，-CO-，-HCOO - ， - NH 2 - ， - NH - ，= N，-SO 3 H，-NHNH 2，-CONH 2，-CH = CH 2，-CH = CH - ，（RO）nX 3-n -Si-，其中R是C 1-5烷基，n是0-3的数，X是卤素或C 1-5烷基。聚合物组合物可用于光纤的塑料包层。

3. 发明授权

US5048924A Fluorine resin composition 失效
标题翻译：氟树脂组合物
公开(公告)号：US5048924A
公开(公告)日：1991-09-17
申请号：US597873
申请日：1990-10-12
申请人： Teruhiko Sugimori , Takashi Yamamoto , Tsuruyoshi Matsumoto , Katsuhiko Shimada
发明人： Teruhiko Sugimori , Takashi Yamamoto , Tsuruyoshi Matsumoto , Katsuhiko Shimada
IPC分类号： C08L45/00 , C08L71/02 , G02B1/04
CPC分类号： G02B6/02033 , C08L45/00 , G02B1/048 , C08L71/02
摘要： Disclosed is a resin composition comprising a copolymer [I] having a number average molecular weight of at least 15,000, which comprises at least 30 mole % of the following recurring units [A]: ##STR1## and a compound [II] having a number average molecular weight of at least 1,000, which is comprised of perfluoroalkylether recurring units [D]. This resin composition is used as a cladding of a core-clad optical fiber.

4. 发明授权

US5022737A Plastic cladding composition for plastic core optical fiber, and plastic core optical fiber prepared therefrom 失效
标题翻译：用于塑料芯光纤的塑料包层组合物和由其制备的塑料芯光纤
公开(公告)号：US5022737A
公开(公告)日：1991-06-11
申请号：US443794
申请日：1989-11-22
申请人： Takashi Yamamoto , Tsuruyoshi Matsumoto , Katsuhiko Shimada , Yoshihiro Uozu , Ryuji Murata
发明人： Takashi Yamamoto , Tsuruyoshi Matsumoto , Katsuhiko Shimada , Yoshihiro Uozu , Ryuji Murata
IPC分类号： B29D11/00 , C03C25/10 , D01F8/10 , G02B1/04
CPC分类号： D01F8/10 , B29D11/00663 , C03C25/105 , G02B1/048 , Y10T428/2929
摘要： Disclosed is a cladding composition for a plastic clad plastic core optical fiber, which comprises (a) an ultraviolet ray-curable monofunctional acrylic or .alpha.-fluoroacrylic monomer, (b) a polyfunctional acrylate or .alpha.-fluoroacrylate having at least two acryloyl or .alpha.-fluoroacryloy radicals in the molecule and (c) a photoinitiator. The difference (n.sub.1 -n.sub.2) between the refractive index n.sub.1 of the plastic core and the refractive index n.sub.2 of a cured product of the cladding composition is at least 0.01. The plastic clad plastic core optical fiber inhibits an enhanced heat resistance.

5. 发明授权

US5136002A Fluorine resin composition 失效
标题翻译：氟树脂组合物
公开(公告)号：US5136002A
公开(公告)日：1992-08-04
申请号：US691722
申请日：1991-04-26
申请人： Teruhiko Sugimori , Takashi Yamamoto , Tsuruyoshi Matsumoto , Katsuhiko Shimada
发明人： Teruhiko Sugimori , Takashi Yamamoto , Tsuruyoshi Matsumoto , Katsuhiko Shimada
IPC分类号： C08L45/00 , C08L71/02 , G02B1/04
CPC分类号： G02B6/02033 , C08L45/00 , G02B1/048 , C08L71/02
摘要： Disclosed is a resin composition comprising a copolymer [I] having a number average molecular weight of at least 15,000, which comprises at least 30 mole % of the following recurring units [A]: ##STR1## and a compound [II] having a number average molecular weight of at least 1,000, which is comprised of perfluoroalkylether recurring units [D]. This resin composition is used as a cladding of a core-clad optical fiber.
摘要翻译：公开了包含数均分子量为至少15,000的共聚物[I]的树脂组合物，其包含至少30摩尔％的以下重复单元[A]：化合物[II] 其数均分子量为至少1,000，其由全氟烷基醚重复单元[D]组成。该树脂组合物用作包芯光纤的包层。

6. 发明授权

US5117480A Polymer composition and optical fiber having cladding composed of that composition 失效
标题翻译：具有组合物的聚合物组合物和光学纤维
公开(公告)号：US5117480A
公开(公告)日：1992-05-26
申请号：US642567
申请日：1991-01-18
申请人： Takashi Yamamoto , Tsuruyoshi Matsumoto , Tadao Kobayashi , Katsuhiko Shimada
发明人： Takashi Yamamoto , Tsuruyoshi Matsumoto , Tadao Kobayashi , Katsuhiko Shimada
IPC分类号： C08K5/00 , G02B1/04
CPC分类号： G02B6/02033 , C08K5/0008 , G02B1/048
摘要： Disclosed is a polymer composition comprising (I) 60 to 99.8 wt. % of an amorphous copolymer comprising (a) units derived from perfluoro-2,2-dimethyl-1,3-dioxole and (b) units derived from at least one ethylenically unsaturated monomer selected from ethylene, tetrafluoroethylene, chlorotrifluoroethylene, and CF.sub.2 =CFOCF.sub.3, and (II) 0.2 to 40 wt. % of a compound having a hydrocarbon group containing at least one fluorine atom and at least one functional group selected from --OH, --SR, --COOH, --SO--, --SO.sub.2 --, --CONH--, --COO--CO--, --CONHCO--, --COO--, --CN, --NCO, --CO--, --HCOO--, --NH.sub.2 --, --NH--, .dbd.N, --SO.sub.3 H, --NHNH.sub.2, --CONH.sub.2, --CH.dbd.CH.sub.2, --CH.dbd.CH--, (RO).sub.n X.sub.3-n Si--, wherein R is a C.sub.1-5 alkyl group, n is a number of 0 to 3, and X is halogen or a C.sub.1-5 alkyl group. The polymer composition is useful for a plastic cladding of an optical fiber.

7. 发明授权

US5111526A Plastic optical fibers and process for the production thereof 失效
标题翻译：塑料光纤纤维及其生产工艺
公开(公告)号：US5111526A
公开(公告)日：1992-05-05
申请号：US642844
申请日：1991-01-18
申请人： Takashi Yamamoto , Tsuruyoshi Matsumoto , Katsuhiko Shimada
发明人： Takashi Yamamoto , Tsuruyoshi Matsumoto , Katsuhiko Shimada
IPC分类号： G02B6/00 , B29C47/00 , C08F34/02 , C08F220/24 , C08G67/00 , G02B1/04
CPC分类号： G02B6/02033 , G02B1/046 , G02B1/048 , B29C47/00 , B29C47/0014 , Y10T428/3154 , Y10T428/31544
摘要： A plastic optical fiber comprising a core polymer having a refractive index of n.sub.1, which comprises a polymer of .alpha., .beta.-unsaturated carboxylic acid fluoroalkylester represented by the general formula [I] as the main monomer, and a clad copolymer having a refractive index of n.sub.2, which comprises perfluoro(2,2-dimethyl-1,3-dioxole) as the main monomer, and which satisfies the relationship of (n.sub.1 -n.sub.2 .gtoreq.0.01): ##STR1## wherein X represents CH.sub.3, H, D, F, Cl, or CF.sub.3, Y represents H or D, and Rf represents a fluoroalkyl group having a linear or branched chain. The optical fiber is prepared by a melt-extrusion method. The optical fiber has excellent light transmitting properties, and it is suitable as an optical fiber for long distance light communication.

8. 发明授权

US5121461A Heat-resistant plastic optical fiber and process for the production thereof 失效
标题翻译：耐热塑料光纤及其生产工艺
公开(公告)号：US5121461A
公开(公告)日：1992-06-09
申请号：US590946
申请日：1990-10-01
申请人： Takashi Yamamoto , Tsuruyoshi Matsumoto , Katsuhiko Shimada
发明人： Takashi Yamamoto , Tsuruyoshi Matsumoto , Katsuhiko Shimada
IPC分类号： G02B6/00 , C08G64/00 , C08G64/06 , C08L27/12 , D01D5/34 , D01F8/10 , D01F8/16 , G02B1/04
CPC分类号： G02B6/02033 , G02B1/048
摘要： A heat-resistant plastic optical fiber having a concentric three-layered structure comprising a core layer, a sheath layer and a protective layer, wherein the polymer constituting the sheath layer is a copolymer comprising 30 to 80 mole % of a fluorodioxole represented by the general formula: ##STR1## wherein R and R' are each a fluorine atom or a trifluoromethyl group, and 70 to 20 mole % of at least one other comonomer. Also, a process for the production of the heat-resistant plastic optical fiber comprising spinning a core-forming polymer, a sheath-forming polymer and a protective layer-forming polymer by a three-layered conjugate spinning process.

9. 发明授权

US5155796A Plastic optical fibers 失效
标题翻译：塑料光纤
公开(公告)号：US5155796A
公开(公告)日：1992-10-13
申请号：US798932
申请日：1991-11-29
申请人： Hiroaki Oonishi , Katsuhiko Shimada , Takashi Yamamoto
发明人： Hiroaki Oonishi , Katsuhiko Shimada , Takashi Yamamoto
IPC分类号： G02B1/04
CPC分类号： G02B6/02033 , G02B1/046 , G02B1/048
摘要： A novel all-plastic optical fiber comprising core and clad components which is tough, flexible, and which has a low transmission loss, wherein the core component is composed of a homopolymer or copolymer of a monomer selected from one or more monomers represented by the general formula (I), or a copolymer of the at least one monomer represented by the general formula (I) and other copolymerizable comonomers and which has a glass transition temperature Tg.sub.1 .degree. C.; and wherein the clad component is composed of a copolymer of perfluoro[2,2-dimethyl-1,3-dioxol] and one other ethylenically unsaturated monomer, and which has a glass transition temperature Tg.sub.2 .degree. C.; and which meets the relationship wherein that the absolute difference of .vertline.Tg.sub.1 -Tg.sub.2 .vertline. is not greater than 30.degree. C. ##STR1## (wherein X is CH.sub.3, H, D, F, Cl, or CF.sub.3 ; Y is H or D; and Rf is a fluoroalkyl group having a linear or branched chain).

10. 发明授权

US4798445A Plastic optical fiber and process for producing the same 失效
标题翻译：塑料光纤及其制造方法
公开(公告)号：US4798445A
公开(公告)日：1989-01-17
申请号：US847515
申请日：1986-04-03
申请人： Takashi Yamamoto , Katsuhiko Shimada , Ryuji Murata , Yasuteru Tahara , Hiromu Terada , Kenichi Sakunaga
发明人： Takashi Yamamoto , Katsuhiko Shimada , Ryuji Murata , Yasuteru Tahara , Hiromu Terada , Kenichi Sakunaga
IPC分类号： G02B6/00 , B29C47/00 , D01D5/34 , D01F8/16 , G02B1/04 , G02B6/02 , G02B6/16
CPC分类号： G02B6/02033 , B29C47/0014 , D01D5/34 , D01F8/16 , G02B1/046 , B29C47/00
摘要： A plastic optical fiber which is superior in the light transmission characteristics, particularly in those within a visible light region and also superior in heat resistance, and a process for producing the same are provided, which plastic optical fiber comprises a polycarbonate as its core material and a polymer as its cladding material having a refractive index lower than that of the core material, wherein the relationship between the light transmission loss L.sub.500 (dB/km) of the fiber as measured at a wavelength of 500 nm and that as measured at 660 nm being expressed by the following inequality:L.sub.500
摘要翻译：提供了一种塑料光纤，其光传输特性优异，特别是在可见光区域内，并且耐热性优异的塑料光纤及其制造方法，该塑料光纤包含聚碳酸酯作为芯材，作为其包层材料的聚合物，其折射率低于芯材料的折射率，其中在波长500nm测量的光纤的光传输损耗L500（dB / km）与在660nm测量的光传输损耗之间的关系由以下不等式表示：L500

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