Movatterモバイル変換

[0]ホーム
URL:

JPS57104906A - Production of optical transmission fiber - Google Patents

Production of optical transmission fiber

Info

Publication number
JPS57104906A
JPS57104906AJP55181549AJP18154980AJPS57104906AJP S57104906 AJPS57104906 AJP S57104906AJP 55181549 AJP55181549 AJP 55181549AJP 18154980 AJP18154980 AJP 18154980AJP S57104906 AJPS57104906 AJP S57104906A
Authority
JP
Japan
Prior art keywords
polymn
temps
mercaptan
initiator
methyl methacrylate
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.)
Pending
Application number
JP55181549A
Other languages
Japanese (ja)
Inventor
Yasuteru Tawara
Jun Nakauchi
Hisao Anzai
Takashi Yamamoto
Akio Tateishi
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.)
Mitsubishi Chemical Corp
Original Assignee
Mitsubishi Rayon Co Ltd
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 Mitsubishi Rayon Co LtdfiledCriticalMitsubishi Rayon Co Ltd
Priority to JP55181549ApriorityCriticalpatent/JPS57104906A/en
Publication of JPS57104906ApublicationCriticalpatent/JPS57104906A/en
Pendinglegal-statusCriticalCurrent

Links

Classifications

Landscapes

Abstract

PURPOSE:To improve heat resistance by regulating polymn. conditions at the stage of filtering and refining a monomer consisting essentially of methyl methacrylate as a core component material by the use of a porous membrane and subjecting the same to continuous bulk polymn. at elevated temps. CONSTITUTION:A monomer consisting essentially of methyl methacrylate, and if necessary, mercaptan, and a radical polymn. initiator are filtered by the use of porous hollow yarn of polyethylene or the like and are thereby refined, thence these are subjected to continous bulk polymn. at elevated temps. At this time, <=0.01-1.0mol% mercaptan and the radical polymn. initiator of the amt. satisfying the formulas 1-3[A is molar number in 100g monomer feed, B is the half-life (time) at polymn. temps.]are also supplied, and these are so polymerized that the polymer content phi(wt%) of the reaction mixture satisfies 50<phi<70exp (0.0121T-1.81)[T is polymn. temp. ( deg.C)].
JP55181549A1980-12-221980-12-22Production of optical transmission fiberPendingJPS57104906A (en)

Priority Applications (1)

Application NumberPriority DateFiling DateTitle
JP55181549AJPS57104906A (en)1980-12-221980-12-22Production of optical transmission fiber

Applications Claiming Priority (1)

Application NumberPriority DateFiling DateTitle
JP55181549AJPS57104906A (en)1980-12-221980-12-22Production of optical transmission fiber

Publications (1)

Publication NumberPublication Date
JPS57104906Atrue JPS57104906A (en)1982-06-30

Family

ID=16102723

Family Applications (1)

Application NumberTitlePriority DateFiling Date
JP55181549APendingJPS57104906A (en)1980-12-221980-12-22Production of optical transmission fiber

Country Status (1)

CountryLink
JP (1)JPS57104906A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
US4889408A (en)*1986-11-041989-12-26Asahi Kasei Kogyo Kabushiki KaishaPlastic optical fiber less attenuating light and process for producing the same
EP0691351A1 (en)*1994-07-091996-01-10Röhm GmbHContinuous process for the preparation of a thermoplastic moulding matter
US7199262B2 (en)2004-06-162007-04-03Central Glass Company, Limited3-Hydroxypropyl ester of 2-trifluoromethylacrylic acid and process for producing same

Citations (4)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
JPS5083046A (en)*1973-11-221975-07-04
JPS5215627A (en)*1975-07-091977-02-05Mitsubishi Rayon Co LtdPorous polypropylene hollow fibers and a process for manufacturing the m
JPS5465555A (en)*1977-10-141979-05-26Du PontLowwdamping optical fibers entirely made of plastic
JPS5468414A (en)*1977-11-081979-06-01Mitsubishi Rayon Co LtdProduction of porous hollow polypropylene fibers

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
JPS5083046A (en)*1973-11-221975-07-04
JPS5215627A (en)*1975-07-091977-02-05Mitsubishi Rayon Co LtdPorous polypropylene hollow fibers and a process for manufacturing the m
JPS5465555A (en)*1977-10-141979-05-26Du PontLowwdamping optical fibers entirely made of plastic
JPS5468414A (en)*1977-11-081979-06-01Mitsubishi Rayon Co LtdProduction of porous hollow polypropylene fibers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
US4889408A (en)*1986-11-041989-12-26Asahi Kasei Kogyo Kabushiki KaishaPlastic optical fiber less attenuating light and process for producing the same
EP0691351A1 (en)*1994-07-091996-01-10Röhm GmbHContinuous process for the preparation of a thermoplastic moulding matter
US7199262B2 (en)2004-06-162007-04-03Central Glass Company, Limited3-Hydroxypropyl ester of 2-trifluoromethylacrylic acid and process for producing same

Similar Documents

PublicationPublication DateTitle
EP0117098A3 (en)Method for the formation of composite articles comprised of thermotropic liquid crystalline polymers and articles produced thereby
ES435239A1 (en)Process for producing carbon fibers from mesophase pitch
KR890010128A (en) Fluorine- and Chromophore-Containing Polymers
JPS6470765A (en)Resin for toner and production thereof
ATE28880T1 (en) MINERAL PARTICLES, PROCESS FOR THEIR PRODUCTION AND DENTAL MATERIALS CONTAINING THEM.
GB1507966A (en)Method of producing sheeting from a mixture of vegetable fibres and polyolefin
ATE47146T1 (en) ETHYLENE TERPOLYMERS, PROCESS FOR THEIR PRODUCTION AND USE.
DE69029495D1 (en) Process for the production of polyolefin-vinyl polymer composite material
FR2380053A1 (en) ETHYLENE COPOLYMER HOLLOW FIBER MEMBRANES AND METHOD OF USE
JPS57104906A (en)Production of optical transmission fiber
ES8302051A1 (en)Vibration attenuating foil and method for its production from aqueous polymer dispersions.
SE8005399L (en) PREPARATION OF COPOLYMERS OF THE PROP and BUT-1
DE69114801D1 (en) Process for the production of vinyl polymer-polyolefin composite material.
JPS5447887A (en)Oil adsorbent and production thereof
KR870004079A (en) Method for volume reduction of materials containing addition polymerizable groups
ES8103120A1 (en)Process for the continuous production of polyblends derived from an alkenyl aromatic monomer and a diene rubber.
ES457845A1 (en)Polymeric polyblends having improved melt flow
ATE73474T1 (en) FUNCTIONALIZED AETHYLENE POLYMERS, USE IN COATING METALS AND PROCESS FOR THE PRODUCTION THEREOF.
ES8406884A1 (en)Composition of materials for retention elements and plates based on said composition and use of these plates.
JPS52155218A (en)Water-absorbing fiber and preparation thereof
EP0034437A3 (en)Improved process for preparing 2,2&#39;-azobis(2,4-dimethylpentanenitrile) and use of the product as a polymerization initiator
EP0287178A3 (en)Process for the preparation of polymer-grafted cellulose fibres
DE3767232D1 (en) PARTLY Esterified ACRYLIC POLYMERS AND THEIR USE FOR THE PRODUCTION OF COATING MEASURES.
JPS5662831A (en)Production of fiberglass compound for fiberglass- reinforced thermoplastic resin
SeymourAcrylic Polymers
[8]ページ先頭
©2009-2025 Movatter.jp