JPS5784403A - Method and device for production of low loss plastic optical fiber - Google Patents

Method and device for production of low loss plastic optical fiber

Info

Publication number
JPS5784403A
JPS5784403A JP55159599A JP15959980A JPS5784403A JP S5784403 A JPS5784403 A JP S5784403A JP 55159599 A JP55159599 A JP 55159599A JP 15959980 A JP15959980 A JP 15959980A JP S5784403 A JPS5784403 A JP S5784403A
Authority
JP
Japan
Prior art keywords
well
cores
polymn
formation
optical fiber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP55159599A
Other languages
Japanese (ja)
Other versions
JPH0324641B2 (en
Inventor
Michiya Fujiki
Toshikuni Kaino
Shigeo Nara
Shigeru Oikawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP55159599A priority Critical patent/JPS5784403A/en
Priority to US06/316,834 priority patent/US4381269A/en
Priority to GB8133847A priority patent/GB2089352B/en
Priority to DE19813144658 priority patent/DE3144658A1/en
Priority to FR8121059A priority patent/FR2493997A1/en
Priority to NLAANVRAGE8105088,A priority patent/NL186769C/en
Publication of JPS5784403A publication Critical patent/JPS5784403A/en
Priority to NL9000661A priority patent/NL9000661A/en
Publication of JPH0324641B2 publication Critical patent/JPH0324641B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE:To lower losses by bulk polymerizing monomers distilled in the absence of oxygen in a perfectly sealed system (a) thereby forming a polymer for formation of cores. CONSTITUTION:The entire part of a device is evacuated to a vacuum by a pump 34. The atmosphere in the device is substituted with dry nitrogen to create the state in the absence of oxygen. Azo-t-butane is introduced into a polymn, vessel 21 from a polymn initiator well 11, n-butyl mercaptan from a mol.wt. control agent well 12, ethyl acrylate from a submonomer well 10 for formation of cores, and methyl methacrylate from a main monomer well 9 for formation of cores, respectively through distillation stills 3, 4, 2, 1. The polmn. vessel is then heated to perfect bulk polymn., after which the molten polymer is extruded into a nozzle 37A, and a molten polymer such as fluoroalkyl methacrylate or the like is extruded through a clad material inflow port 38 into a nozzle 37B, whereby double melt spinning is accomplished and optical fiber is obtained.
JP55159599A 1980-11-11 1980-11-14 Method and device for production of low loss plastic optical fiber Granted JPS5784403A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP55159599A JPS5784403A (en) 1980-11-14 1980-11-14 Method and device for production of low loss plastic optical fiber
US06/316,834 US4381269A (en) 1980-11-11 1981-10-30 Fabrication of a low-loss plastic optical fiber
GB8133847A GB2089352B (en) 1980-11-11 1981-11-10 Fabrication method of a low-loss plastic optical fiber
DE19813144658 DE3144658A1 (en) 1980-11-11 1981-11-10 METHOD FOR PRODUCING A LOW-LOSS OPTICAL FIBER FROM PLASTIC
FR8121059A FR2493997A1 (en) 1980-11-11 1981-11-10 PROCESS FOR PRODUCING OPTICAL FIBER OF PLASTIC MATERIAL WITH LOW LOSSES
NLAANVRAGE8105088,A NL186769C (en) 1980-11-11 1981-11-10 METHOD FOR MANUFACTURING OPTICAL PLASTIC FIBERS
NL9000661A NL9000661A (en) 1980-11-11 1990-03-21 METHOD FOR MANUFACTURING OPTICAL FIBERS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55159599A JPS5784403A (en) 1980-11-14 1980-11-14 Method and device for production of low loss plastic optical fiber

Publications (2)

Publication Number Publication Date
JPS5784403A true JPS5784403A (en) 1982-05-26
JPH0324641B2 JPH0324641B2 (en) 1991-04-03

Family

ID=15697214

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55159599A Granted JPS5784403A (en) 1980-11-11 1980-11-14 Method and device for production of low loss plastic optical fiber

Country Status (1)

Country Link
JP (1) JPS5784403A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4973142A (en) * 1981-08-20 1990-11-27 E. I. Du Pont De Nemours And Company Amorphous copolymers of perfluoro-2,2-dimethyl-1,3-dioxole
US4975505A (en) * 1981-08-20 1990-12-04 E. I. Du Pont De Nemours And Company Amorphous copolymers of perfluoro-2,2-dimethyl-1,3-dioxole
US4977297A (en) * 1981-08-20 1990-12-11 E. I. Du Pont De Nemours And Company Amorphous copolymers of perfluoro-2,2-dimethyl-1,3-dioxole
US4977008A (en) * 1981-08-20 1990-12-11 E. I Du Pont De Nemours And Company Amorphous copolymers of perfluoro-2,2-dimethyl-1,3-dioxole
US4977025A (en) * 1981-08-20 1990-12-11 E. I Du Pont De Nemours And Company Amorphous copolymers of perfluoro-2,2-dimethyl-1,3-dioxole
US4977026A (en) * 1981-08-20 1990-12-11 E. I. Du Pont De Nemours And Company Amorphous copolymers of perfluoro-2,2-dimethyl-1,3-dioxole
US4982056A (en) * 1981-08-20 1991-01-01 E. I. Du Pont De Nemours And Company Amorphous copolymers of perfluoro-2,2-dimethyl-1,3-dioxide
US4999248A (en) * 1981-08-20 1991-03-12 E. I. Du Pont De Nemours And Company Amorphous copolymers of perfluoro-2,2-dimethyl-1,3-dioxole
US5000547A (en) * 1981-08-20 1991-03-19 E. I. Du Pont De Nemours And Company Amorphous copolymers of perfluoro-2,2-dimethyl-1,3-dioxole
US5006382A (en) * 1981-08-20 1991-04-09 E. I. Du Pont De Nemours And Company Amorphous copolymers of perfluoro-2,2-dimethyl-1,3-dioxole

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5083046A (en) * 1973-11-22 1975-07-04
JPS5465555A (en) * 1977-10-14 1979-05-26 Du Pont Lowwdamping optical fibers entirely made of plastic
JPS55103504A (en) * 1979-02-01 1980-08-07 Nippon Telegr & Teleph Corp <Ntt> Production of plastic optical fiber

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5083046A (en) * 1973-11-22 1975-07-04
JPS5465555A (en) * 1977-10-14 1979-05-26 Du Pont Lowwdamping optical fibers entirely made of plastic
JPS55103504A (en) * 1979-02-01 1980-08-07 Nippon Telegr & Teleph Corp <Ntt> Production of plastic optical fiber

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4973142A (en) * 1981-08-20 1990-11-27 E. I. Du Pont De Nemours And Company Amorphous copolymers of perfluoro-2,2-dimethyl-1,3-dioxole
US4975505A (en) * 1981-08-20 1990-12-04 E. I. Du Pont De Nemours And Company Amorphous copolymers of perfluoro-2,2-dimethyl-1,3-dioxole
US4977297A (en) * 1981-08-20 1990-12-11 E. I. Du Pont De Nemours And Company Amorphous copolymers of perfluoro-2,2-dimethyl-1,3-dioxole
US4977008A (en) * 1981-08-20 1990-12-11 E. I Du Pont De Nemours And Company Amorphous copolymers of perfluoro-2,2-dimethyl-1,3-dioxole
US4977025A (en) * 1981-08-20 1990-12-11 E. I Du Pont De Nemours And Company Amorphous copolymers of perfluoro-2,2-dimethyl-1,3-dioxole
US4977026A (en) * 1981-08-20 1990-12-11 E. I. Du Pont De Nemours And Company Amorphous copolymers of perfluoro-2,2-dimethyl-1,3-dioxole
US4982056A (en) * 1981-08-20 1991-01-01 E. I. Du Pont De Nemours And Company Amorphous copolymers of perfluoro-2,2-dimethyl-1,3-dioxide
US4999248A (en) * 1981-08-20 1991-03-12 E. I. Du Pont De Nemours And Company Amorphous copolymers of perfluoro-2,2-dimethyl-1,3-dioxole
US5000547A (en) * 1981-08-20 1991-03-19 E. I. Du Pont De Nemours And Company Amorphous copolymers of perfluoro-2,2-dimethyl-1,3-dioxole
US5006382A (en) * 1981-08-20 1991-04-09 E. I. Du Pont De Nemours And Company Amorphous copolymers of perfluoro-2,2-dimethyl-1,3-dioxole

Also Published As

Publication number Publication date
JPH0324641B2 (en) 1991-04-03

Similar Documents

Publication Publication Date Title
US4381269A (en) Fabrication of a low-loss plastic optical fiber
JPS5784403A (en) Method and device for production of low loss plastic optical fiber
JPS5531822A (en) Manufacture of glassfiber-reinforced transparent resin plate
FR2683535B1 (en) NOVEL FLUORINATED COPOLYMERS AND THEIR USE FOR COATING AND IMPREGNATION OF VARIOUS SUBSTRATES.
GB1132439A (en) Process for curing thick sections of acrylic ester syrups
KR910008052A (en) Long fiber reinforced polyolefin resin molding composition and preparation method thereof
ES438077A1 (en) Impact resistant polymer mixtures
US4568146A (en) Plastic optical fiber and production thereof
GB1424293A (en) Method of making a strain-free polymer
JPS5478787A (en) Production of transparent glass fiber reinforced resin
ATE92505T1 (en) PROCESS FOR PRODUCTION OF WATER-SWELLING POLYMERS USING SODIUM THIOSULFATE AS PART OF A REDOX INITIATOR SYSTEM.
KR890702084A (en) Electrophotographic Toner
JPS5746204A (en) Optical fiber
KR19980032683A (en) Inclined refractive index fiber manufacturing method
JPS55103504A (en) Production of plastic optical fiber
GB2089352A (en) Fabrication method of a low- loss plastic optical fiber
JPS53135647A (en) Production of optical fibers
JPS6225705A (en) Production of near parabolic optical plastic
US2404268A (en) Methacrylic esters and copolymers thereof
JPS53130743A (en) Improved composition of reinforced polyolefin
JPS60235817A (en) Copolymer for cladding
JPS6134503A (en) Plastic optical transmission body
JPS54137031A (en) Vinyl polymer emulsion for adhesives
JPS5321937A (en) Preparation of synthetic resin material for optical transmission
JPS6426612A (en) Production of polymer having high refractive index