JPH07278255A - New compound and plastic-clad optical fiber using same - Google Patents

New compound and plastic-clad optical fiber using same

Info

Publication number
JPH07278255A
JPH07278255A JP6068427A JP6842794A JPH07278255A JP H07278255 A JPH07278255 A JP H07278255A JP 6068427 A JP6068427 A JP 6068427A JP 6842794 A JP6842794 A JP 6842794A JP H07278255 A JPH07278255 A JP H07278255A
Authority
JP
Japan
Prior art keywords
weight
parts
meth
optical fiber
urethane
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
JP6068427A
Other languages
Japanese (ja)
Inventor
Chikasuke Okumi
慎祐 奥見
Takayuki Mishima
隆之 三島
Hiroyuki Kojima
啓之 児嶋
Noriko Matoba
典子 的場
Sanehiro Nakajima
修弘 中島
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries 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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP6068427A priority Critical patent/JPH07278255A/en
Publication of JPH07278255A publication Critical patent/JPH07278255A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To obtain a urethane di(meth)acrylate useful as a cladding which gives an optical fiber with a large numerical aperture by using a specific fluoroalkylated diol and a specific fluoroalkylated epoxy compd. as the starting materials. CONSTITUTION:A urethane di(meth)acrylate of formula IV (X is H or methyl; k is 1-30; and it is 2-30) is obtd. by reacting a fluoroaklylated diol of fomrula I (j is 0 or 1; m is 1 or 2; and n is 3-12) with a fluoroalkylated epoxy compd. of formula II, then with a diisocyanate of formula III (R is alkyl, aryl, or cycloalkyl) (e.g. hexamethylene diisocyanate), and with (meth)acryl chloride or (meth)acrylic acid. An optical fiber which has a large numerical aperture and can efficiently take in light from a light source is produced by using, as the cladding, a cured resin compsn. contg. the urethane di(meth)acrylate.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、新規化合物およびそれ
を含む樹脂組成物の硬化物をクラッドとするプラスチッ
ククラッド光ファイバに関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a novel compound and a plastic clad optical fiber having a cured product of a resin composition containing the compound as a clad.

【0002】[0002]

【従来の技術】従来、プラスチッククラッド光ファイバ
のクラッド材としてシリコーン樹脂が知られていた(特
開昭58−30703号公報)。しかしこのクラッド材
では機械的強度不足の故に、近年要求される圧着式コネ
クタ付けによる端末処理の簡易化に対応することができ
ない。これに対し、特開昭62−250047号公報、
米国特許第4,707,076号、特開平3−16620
6号公報および特開平5−32749号公報に開示され
ているように、紫外線硬化型樹脂組成物を用いたクラッ
ド材が提唱されている。これらの樹脂組成物は紫外線硬
化による架橋構造をとるため機械強度に優れており、こ
れらをクラッド材として用いた光ファイバは圧着式コネ
クタの適用が可能である。またこれらクラッド材を用い
た場合、生産速度が向上するといった長所も有してい
る。
2. Description of the Related Art Conventionally, silicone resin has been known as a clad material for plastic clad optical fibers (Japanese Patent Laid-Open No. 58-30703). However, since this clad material lacks mechanical strength, it is not possible to cope with the simplification of terminal treatment by crimping type connector attachment which is required in recent years. On the other hand, JP-A-62-250047,
U.S. Pat. No. 4,707,076, JP-A-3-16620.
As disclosed in Japanese Patent Laid-Open No. 6 and Japanese Patent Laid-Open No. 5-32749, a clad material using an ultraviolet curable resin composition has been proposed. These resin compositions are excellent in mechanical strength because they take a cross-linked structure by ultraviolet curing, and an optical fiber using them as a clad material can be applied with a crimp type connector. Further, when these clad materials are used, there is also an advantage that the production speed is improved.

【0003】[0003]

【発明が解決しようとする課題】しかしながらこれらの
樹脂組成物をクラッドとして用いた光ファイバは光源素
子との光結合効率を表すパラメータであるNA(開口
数)が十分に大きくないために、光源からの光を効率的
に光ファイバに取り込めないという問題点があった。
However, an optical fiber using these resin compositions as a clad does not have a sufficiently large NA (numerical aperture), which is a parameter indicating the optical coupling efficiency with a light source element, and therefore is not suitable for the light source. However, there is a problem in that the above light cannot be efficiently taken into the optical fiber.

【0004】光ファイバの構造NAは次式で表される。 NA=√(n1 2−n2 2) [式中、n1はコアの屈折率、n2はクラッドの屈折率を
表す] 従ってNAを増大させるにはコアの屈折率を増大させる
か、あるいはクラッドの屈折率を低下させればよい。
The structure NA of an optical fiber is expressed by the following equation. NA = √ (n 1 2 −n 2 2 ) [where n 1 is the refractive index of the core and n 2 is the refractive index of the cladding] Therefore, in order to increase NA, the refractive index of the core is increased, or Alternatively, the refractive index of the clad may be lowered.

【0005】本発明の目的は、高NAを有し、かつ圧着
式コネクタの適用が可能なプラスチッククラッド光ファ
イバおよび、屈折率が低くそのクラッド材に使用される
新規化合物を提供することにある。
An object of the present invention is to provide a plastic clad optical fiber having a high NA and which can be applied to a crimp type connector, and a novel compound having a low refractive index and used for the clad material.

【課題を解決するための手段】本発明は、骨格中にフル
オロポリエーテル構造を有する新規化合物をクラッドに
導入することにより、フッ素の含有率を上げ、十分に屈
折率を下げることに成功した。本発明で使用する新規化
合物は、一般式:
The present invention has succeeded in increasing the content of fluorine and sufficiently lowering the refractive index by introducing a novel compound having a fluoropolyether structure in the skeleton into the clad. The novel compounds used in the present invention have the general formula:

【化11】 [式中、Xは水素またはメチル基、Rはアルキル基、ア
リール基または環状アルキル基、jは0または1、kは
1〜30の整数、lは2〜30の整数、mは1または
2、およびnは3〜12の整数である。]で表されるウ
レタンジ(メタ)アクリレートである。
[Chemical 11] [In the formula, X is hydrogen or a methyl group, R is an alkyl group, an aryl group or a cyclic alkyl group, j is 0 or 1, k is an integer of 1 to 30, l is an integer of 2 to 30, and m is 1 or 2 , And n are integers of 3 to 12. ] It is the urethane di (meth) acrylate represented by these.

【0006】一般式(1)のRにおいて、アルキル基の
炭素数は1〜10であることが好ましく、アリール基の
炭素数は6〜20であることが好ましく、環状アルキル
基の炭素数は3〜30であることが好ましい。アルキル
基は-(CH2)4-または-(CH2)6-であることが好ましい。ア
リール基は、
In R of the general formula (1), the alkyl group preferably has 1 to 10 carbon atoms, the aryl group preferably has 6 to 20 carbon atoms, and the cyclic alkyl group has 3 carbon atoms. It is preferably -30. Alkyl group - (CH 2) 4 - or - (CH 2) 6 - is preferably. The aryl group is

【化12】 または[Chemical 12] Or

【化13】 であることが好ましい。環状アルキル基は、[Chemical 13] Is preferred. The cyclic alkyl group is

【化14】 または[Chemical 14] Or

【化15】 であることが好ましい。kは好ましくは1〜10、lは
好ましくは2〜10、nは好ましくは6〜12である。
[Chemical 15] Is preferred. k is preferably 1-10, l is preferably 2-10, and n is preferably 6-12.

【0007】また本発明は、前記ウレタンジ(メタ)ア
クリレート(1)を含有することを特徴とする樹脂組成
物を提供する。さらに本発明は、石英または光学ガラス
をコアとし、コアよりも低屈折率のプラスチックをクラ
ッドとする光ファイバにおいて、クラッド材が前記樹脂
組成物の硬化物であることを特徴とするプラスチックク
ラッド光ファイバを提供する。
The present invention also provides a resin composition containing the urethane di (meth) acrylate (1). Further, the present invention is an optical fiber having quartz or optical glass as a core and plastic having a refractive index lower than that of the core as a clad, wherein the clad material is a cured product of the resin composition. I will provide a.

【0008】プラスチッククラッド光ファイバのクラッ
ド材として使用される樹脂組成物は光ファイバ製造時、
コアガラス上へ均一に、しかも薄肉に塗布することが必
要である。このため、その粘度が100〜10000cp
s、特に500〜5000cpsであることが好ましい。こ
の増粘剤としてウレタン(メタ)アクリレートが用いら
れてきたが、従来のウレタン(メタ)アクリレートは原
料ジオールとしてフッ素の含有量が比較的少ないものを
使用していた。そのため屈折率が十分低減されていなか
った。本発明は、このジオールとしてフルオロポリエー
テルジオールを用いることで、骨格にフルオロポリエー
テルを有するウレタンジ(メタ)アクリレート(1)を
合成し、屈折率を低減したものである。ウレタンジ(メ
タ)アクリレートを用いた樹脂組成物の硬化物をクラッ
ド材とすることで、光ファイバのNAを増大させ、かつ
圧着式コネクタの適用を可能とする。
The resin composition used as the clad material for the plastic clad optical fiber is
It is necessary to coat the core glass uniformly and thinly. Therefore, its viscosity is 100-10,000 cp
s, particularly preferably 500 to 5000 cps. Urethane (meth) acrylate has been used as the thickener, but the conventional urethane (meth) acrylate used a raw material diol having a relatively small content of fluorine. Therefore, the refractive index was not sufficiently reduced. In the present invention, by using fluoropolyether diol as this diol, urethane di (meth) acrylate (1) having fluoropolyether in the skeleton is synthesized and the refractive index is reduced. By using a cured product of a resin composition using urethane di (meth) acrylate as a clad material, the NA of the optical fiber is increased and a crimp type connector can be applied.

【0009】本発明のウレタンジ(メタ)アクリレート
(1)は、フルオロアルキル基を有するジオール(A)
とフルオロアルキル基を有するエポキシ(B)を反応さ
せ、次いでジイソシアネート(C)を反応させ、次いで
塩化(メタ)アクリルまたは(メタ)アクリル酸を反応
させることにより得ることができる。
The urethane di (meth) acrylate (1) of the present invention is a diol (A) having a fluoroalkyl group.
It can be obtained by reacting with a fluoroalkyl group-containing epoxy (B), then with a diisocyanate (C), and then with (meth) acrylic chloride or (meth) acrylic acid.

【0010】[0010]

【化16】 [式中、jは0または1、mは1または2、nは6〜1
2の整数。]
[Chemical 16] [In the formula, j is 0 or 1, m is 1 or 2, and n is 6-1.
An integer of 2. ]

【化17】 [式中、jは0または1、mは1または2、nは6〜1
2の整数。] OCNRNCO (C) [式中、Rはアルキル基、アリール基または環状アルキ
ル基。]
[Chemical 17] [In the formula, j is 0 or 1, m is 1 or 2, and n is 6-1.
An integer of 2. OCNRNCO (C) [In the formula, R represents an alkyl group, an aryl group or a cyclic alkyl group. ]

【0011】フルオロアルキル基を有するジオール
(A)の具体的な例としては、例えば、
Specific examples of the diol (A) having a fluoroalkyl group include, for example,

【化18】 [Chemical 18]

【化19】 等が挙げられる。[Chemical 19] Etc.

【0012】フルオロアルキル基を有するエポキシ
(B)としては、例えば、
As the epoxy (B) having a fluoroalkyl group, for example,

【化20】 [Chemical 20]

【化21】 等が挙げられる。[Chemical 21] Etc.

【0013】このようにして得られるウレタンジ(メ
タ)アクリレート(1)の具体例としては、例えば、
Specific examples of the urethane di (meth) acrylate (1) thus obtained include, for example,

【化22】 [Chemical formula 22]

【化23】 が挙げられる。[Chemical formula 23] Is mentioned.

【0014】ウレタンジ(メタ)アクリレート(1)の
量は、樹脂組成物100重量部に対して通常5〜99.
99重量部、好ましくは10〜90重量部、より好まし
くは15〜80重量部、特に15〜70重量部である。
The amount of urethane di (meth) acrylate (1) is usually 5 to 99 per 100 parts by weight of the resin composition.
It is 99 parts by weight, preferably 10 to 90 parts by weight, more preferably 15 to 80 parts by weight, especially 15 to 70 parts by weight.

【0015】前述のように本組成物は適切な粘度をもつ
必要があり、粘度を調整するため、希釈剤を含んでもよ
い。この希釈剤は樹脂組成物の屈折率を低減するために
フッ素原子を含むことが好ましい。希釈剤は反応性希釈
剤であることが好ましい。このような反応性希釈剤とし
て式: CH2=CXCOO(CH2O)l(CH2)mCnF2n+1 [式中、Xは水素またはメチル基、lは0または1、m
は1または2、nは6〜12の整数をあらわす。]また
は CH2=CXCOO(CH2O)k(CH2)lCmHnF2m-n+1 [式中、Xは水素またはメチル基、kは0または1、l
は1または2、mは6〜12の整数、nは1〜12の整
数をあらわす。]で示されるフルオロアルキル基を有す
る(メタ)アクリレートが挙げられる。
As stated above, the composition must have a suitable viscosity and may contain a diluent to adjust the viscosity. This diluent preferably contains a fluorine atom in order to reduce the refractive index of the resin composition. The diluent is preferably a reactive diluent. Such reactive diluents have the formula: CH 2 = CXCOO (CH 2 O) l (CH 2 ) m C n F 2n + 1 where X is hydrogen or a methyl group, l is 0 or 1, m
Represents 1 or 2, and n represents an integer of 6 to 12. ] Or CH 2 = CXCOO (CH 2 O) k (CH 2 ) l C m H n F 2m-n + 1 [wherein X is hydrogen or a methyl group, k is 0 or 1, l
Is 1 or 2, m is an integer of 6 to 12, and n is an integer of 1 to 12. ] The (meth) acrylate which has the fluoroalkyl group shown by these is mentioned.

【0016】フルオロアルキル基を有する(メタ)アク
リレートの具体例は、例えば、CH2=CHCOOCH2(CF2)5CF3,
CH2=CCH3COOCH2(CF2)5CF3,CH2=CHCOO(CH2)2(C
F2)5CF3, CH2=CCH3COOCH2(CH2)2(CF2)5CF3,CH2=CH
COO(CH2)2(CF2)6CF3, CH2=CCH3COOCH2(CH2)2(CF2)
6CF3,CH2=CHCOO(CH2)2(CF2)7CF3, CH2=CCH3COOCH2
(CH2)2(CF2)7CF3,CH2=CHCOOCH2-O-CH2(CF2)5CF3, CH2
=CCH3COOCH2-O-CH2(CF2)5CF3,CH2=CHCOOCH2(CF2)5CF2H,
CH2=CCH3COOCH2CH2(CF2)5CF2H,CH2=CHCOOCH2-O
-CH2(CF2)5CF2H, CH2=CCH3COOCH2-O-CH2(CF2)5CF2Hな
どが挙げられる。
Specific examples of the (meth) acrylate having a fluoroalkyl group are, for example, CH 2 = CHCOOCH 2 (CF 2 ) 5 CF 3 ,
CH 2 = CCH 3 COOCH 2 (CF 2 ) 5 CF 3 , CH 2 = CHCOO (CH 2 ) 2 (C
F 2 ) 5 CF 3 , CH 2 = CCH 3 COOCH 2 (CH 2 ) 2 (CF 2 ) 5 CF 3 , CH 2 = CH
COO (CH 2 ) 2 (CF 2 ) 6 CF 3 , CH 2 = CCH 3 COOCH 2 (CH 2 ) 2 (CF 2 )
6 CF 3 , CH 2 = CHCOO (CH 2 ) 2 (CF 2 ) 7 CF 3 , CH 2 = CCH 3 COOCH 2
(CH 2 ) 2 (CF 2 ) 7 CF 3 , CH 2 = CHCOOCH 2 -O-CH 2 (CF 2 ) 5 CF 3 , CH 2
= CCH 3 COOCH 2 -O-CH 2 (CF 2 ) 5 CF 3 , CH 2 = CHCOOCH 2 (CF 2 ) 5 CF 2 H,
CH 2 = CCH 3 COOCH 2 CH 2 (CF 2 ) 5 CF 2 H, CH 2 = CHCOOCH 2 -O
-CH 2 (CF 2) 5 CF 2 H, such as CH 2 = CCH 3 COOCH 2 -O -CH 2 (CF 2) 5 CF 2 H and the like.

【0017】反応性希釈剤としてヒドロキシ基および/
またはアミノ基を有し、かつフルオロアルキル基を有す
る(メタ)アクリレートを用いることもできる。このよ
うな(メタ)アクリレートとして例えば式
Hydroxy groups and / or reactive diluents
Alternatively, a (meth) acrylate having an amino group and a fluoroalkyl group can be used. As such (meth) acrylate, for example, the formula

【化24】 [式中、Xは水素またはメチル基、nは6〜12の整数
を表す。]
[Chemical formula 24] [In the formula, X represents hydrogen or a methyl group, and n represents an integer of 6 to 12. ]

【化25】 [式中、Xは水素またはメチル基、mは1または2、n
は6〜12の整数を表す。]
[Chemical 25] [Wherein, X is hydrogen or a methyl group, m is 1 or 2, n
Represents an integer of 6 to 12. ]

【化26】 [式中、Xは水素またはメチル基、nは6〜12の整数
を表す。]
[Chemical formula 26] [In the formula, X represents hydrogen or a methyl group, and n represents an integer of 6 to 12. ]

【化27】 [式中、Xは水素またはメチル基、mは1または2、n
は6〜12の整数を表す。]
[Chemical 27] [Wherein, X is hydrogen or a methyl group, m is 1 or 2, n
Represents an integer of 6 to 12. ]

【化28】 [式中Xは水素またはメチル基、mは6〜12の整数、
nは1〜3の整数を表す。]ならびに
[Chemical 28] [Wherein X is hydrogen or a methyl group, m is an integer of 6 to 12,
n represents an integer of 1 to 3. ] And

【化29】 [式中、Xは水素またはメチル基、lは1または2、m
は6〜12の整数、nは1〜3の整数を表す。]などが
挙げられる。
[Chemical 29] [Wherein, X is hydrogen or a methyl group, l is 1 or 2, m
Represents an integer of 6 to 12, and n represents an integer of 1 to 3. ] Etc. are mentioned.

【0018】具体的には例えばSpecifically, for example,

【化30】 [Chemical 30]

【化31】 ならびに[Chemical 31] And

【化32】 などが挙げられる。ヒドロキシ基および/またはアミノ
基を有し、かつフルオロアルキル基を有する(メタ)ア
クリレートの量は、樹脂組成物100重量部に対して、
通常0〜90重量部、好ましくは0.1〜60重量部、
より好ましくは1〜40重量部である。
[Chemical 32] And so on. The amount of the (meth) acrylate having a hydroxy group and / or an amino group and a fluoroalkyl group is 100 parts by weight of the resin composition.
0 to 90 parts by weight, preferably 0.1 to 60 parts by weight,
It is more preferably 1 to 40 parts by weight.

【0019】さらに、反応性希釈剤として架橋剤として
も働く、フッ素原子を含むジ(メタ)アクリレートを含
んでもよい。このようなフッ素原子を含むジ(メタ)ア
クリレートとして、例えば式: CH2=CXCOOROCOCX=CH2 [式中、Xは水素またはメチル基、Rは-(CH2)m-(CF2)n
-(CH2)m-(ただし、mは1または2、nは2〜7の整
数)
Further, a di (meth) acrylate containing a fluorine atom, which also functions as a crosslinker as a reactive diluent, may be contained. As such a di (meth) acrylate containing a fluorine atom, for example, a compound represented by the formula: CH 2 = CXCOOROCOCX = CH 2 [wherein, X is hydrogen or a methyl group, and R is-(CH 2 ) m- (CF 2 ) n
- (CH 2) m - (provided that, m is 1 or 2, n is 2-7 integer)

【化33】 (式中mは1または2、nは6〜10の整数)であ
る。]が挙げられる。
[Chemical 33] (In the formula, m is 1 or 2, and n is an integer of 6 to 10.). ] Is mentioned.

【0020】フッ素原子を含むジ(メタ)アクリレート
としては、具体的に例えば CH2=CHCOOCH2(CF2)4CH2OCOCH=CH2 CH2=CCH3COOCH2(CF2)4CH2OCOCCH3=CH2
Specific examples of the di (meth) acrylate containing a fluorine atom include CH 2 = CHCOOCH 2 (CF 2 ) 4 CH 2 OCOCH = CH 2 CH 2 = CCH 3 COOCH 2 (CF 2 ) 4 CH 2 OCOCCH. 3 = CH 2

【化34】 [Chemical 34]

【化35】 などが挙げられる。フッ素原子を含むジ(メタ)アクリ
レートの量は、樹脂組成物100重量部に対して、通
常、0〜90重量部、好ましくは0.1〜60重量部、
より好ましくは1〜50重量部である。
[Chemical 35] And so on. The amount of di (meth) acrylate containing a fluorine atom is usually 0 to 90 parts by weight, preferably 0.1 to 60 parts by weight, based on 100 parts by weight of the resin composition.
It is more preferably 1 to 50 parts by weight.

【0021】反応性希釈剤の量は樹脂組成物100重量
部に対して、通常0〜94.99重量部、好ましくは2
0〜80重量部、より好ましくは25〜75重量部であ
る。 本発明の樹脂組成物はコアガラスとの密着性向上のため
にカップリング剤を含有してもよい。カップリング剤の
例としては、ジメチルエトキシビニルシラン、トリエト
キシビニルシラン、ジメチルメトキシビニルシラン、ト
リメトキシビニルシラン、3−メタクリロキシプロピル
トリメトキシシラン、3−(N−アリル−N−メタクロ
イル)アミノプロピルトリメトキシシラン等を挙げるこ
とができる。カップリング剤の量は、樹脂組成物100
重量部に対して、通常0〜10重量部、好ましくは0.
01〜10重量部、より好ましくは0.1〜5重量部で
ある。
The amount of the reactive diluent is usually 0 to 94.99 parts by weight, preferably 2 to 100 parts by weight of the resin composition.
The amount is 0 to 80 parts by weight, more preferably 25 to 75 parts by weight. The resin composition of the present invention may contain a coupling agent for improving the adhesion to the core glass. Examples of coupling agents include dimethylethoxyvinylsilane, triethoxyvinylsilane, dimethylmethoxyvinylsilane, trimethoxyvinylsilane, 3-methacryloxypropyltrimethoxysilane, 3- (N-allyl-N-methacryloyl) aminopropyltrimethoxysilane, and the like. Can be mentioned. The amount of coupling agent is 100
It is usually 0 to 10 parts by weight, preferably 0.
The amount is 01 to 10 parts by weight, more preferably 0.1 to 5 parts by weight.

【0022】本発明樹脂組成物の硬化方法は、光ファイ
バの生産性の点から紫外線硬化であることが好ましい。
紫外線の照射量は、一般的に、0.01〜10J/cm2
である。このため本発明の樹脂組成物は、光重合開始剤
を更に含有してもよい。光重合開始剤は紫外線照射によ
り容易にラジカルを発生する化合物であることが好まし
い。光重合開始剤の例は、ベンゾフェノン、アセトフェ
ノン、ベンジル、ベンゾイン、ベンゾインメチルエーテ
ル、ベンゾインイソブチルエーテル、ベンジルジメチル
ケタール、α,α'−アゾビスイソブチロニトリル、ベン
ゾイルパーオキサイド、1−ヒドロキシシクロヘキシル
フェニルケトン、2,2−ジメトキシ−2−フェニルア
セトフェノン、2−ヒドロキシ−2−メチル−1−フェ
ニルプロパン−1−オンなどである。特に1−ヒドロキ
シシクロヘキシルフェニルケトン、2,2−ジメトキシ
−2−フェニルアセトフェノン、2−ヒドロキシ−2−
メチル−1−フェニルプロパン−1−オンが特に好まし
い。光重合開始剤の量は、樹脂組成物100重量部に対
して、通常0〜10重量部、好ましくは0.01〜10
重量部、より好ましくは0.1〜5重量部である。
The method of curing the resin composition of the present invention is preferably UV curing from the viewpoint of the productivity of optical fibers.
The irradiation dose of ultraviolet rays is generally 0.01 to 10 J / cm 2.
Is. Therefore, the resin composition of the present invention may further contain a photopolymerization initiator. The photopolymerization initiator is preferably a compound that easily generates radicals upon irradiation with ultraviolet rays. Examples of the photopolymerization initiator are benzophenone, acetophenone, benzyl, benzoin, benzoin methyl ether, benzoin isobutyl ether, benzyl dimethyl ketal, α, α′-azobisisobutyronitrile, benzoyl peroxide, 1-hydroxycyclohexyl phenyl ketone. 2,2-dimethoxy-2-phenylacetophenone, 2-hydroxy-2-methyl-1-phenylpropan-1-one and the like. Particularly, 1-hydroxycyclohexyl phenyl ketone, 2,2-dimethoxy-2-phenylacetophenone, 2-hydroxy-2-
Methyl-1-phenylpropan-1-one is particularly preferred. The amount of the photopolymerization initiator is usually 0 to 10 parts by weight, preferably 0.01 to 10 parts by weight, relative to 100 parts by weight of the resin composition.
Parts by weight, more preferably 0.1 to 5 parts by weight.

【0023】[0023]

【発明の好ましい態様】以下、実施例を示し、本発明を
具体的に説明する。なお、本発明は、以下の実施例に限
定されるものではない。合成例1 フルオロアルキル基を有するジオール(A1)38.8
6重量部、フルオロアルキル基を有するエポキシ(B
1)227.14重量部、BF3・O(C25)2 0.94
重量部を仕込み100℃で1時間反応させ、反応生成物
217.06重量部を得た。これにイソプロピルエーテ
ル160重量部、テトラメチレンジイソシアネート3.
36重量部、ジブチルチンジラウレート1.5重量部を
加え、65℃〜70℃で6時間反応させ、生成物21
8.94重量部を得た。得られた生成物に塩化アクリル
1.46重量部、トリエチルアミン3.28重量部を加え
65℃〜70℃でOH基がなくなるまで反応させ、ウレ
タンジアクリレートI 211.14重量部を得た。合成例2 フルオロアルキル基を有するジオール(A2)24.5
3重量部、フルオロアルキル基を有するエポキシ(B
2)141.12重量部、BF3・O(C25)2 0.94
重量部を仕込み100℃で1時間反応させ、反応生成物
135.29重量部を得た。これにイソプロピルエーテ
ル160重量部、ヘキサメチレンジイソシアネート4.
03重量部、ジブチルチンジラウレート1.5重量部を
加え、65℃〜70℃で8時間反応させ、生成物13
7.06重量部を得た。得られた生成物に塩化メタクリ
ル1.46重量部、トリエチルアミン3.28重量部を加
え65℃〜70℃でOH基がなくなるまで反応させ、ウ
レタンジメタクリレートII 211.14重量部を得た。
BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to Examples. The present invention is not limited to the examples below. Synthesis Example 1 Fluoroalkyl group-containing diol (A1) 38.8
6 parts by weight, fluoroalkyl group-containing epoxy (B
1) 227.14 parts by weight, BF 3 · O (C 2 H 5 ) 2 0.94
The reaction mixture was charged at 100 parts by weight for 1 hour to obtain 217.06 parts by weight of a reaction product. 160 parts by weight of isopropyl ether and tetramethylene diisocyanate 3.
36 parts by weight and 1.5 parts by weight of dibutyltin dilaurate were added and reacted at 65 ° C to 70 ° C for 6 hours to give the product 21
8.94 parts by weight were obtained. To the obtained product, 1.46 parts by weight of acrylic chloride and 3.28 parts by weight of triethylamine were added and reacted at 65 ° C. to 70 ° C. until OH groups disappeared to obtain 211.14 parts by weight of urethane diacrylate I. Synthesis Example 2 Fluorine-containing diol (A2) 24.5
3 parts by weight, epoxy having fluoroalkyl group (B
2) 141.12 parts by weight, BF 3 · O (C 2 H 5 ) 2 0.94
The reaction mixture was charged at 100 parts by weight for 1 hour to obtain 135.29 parts by weight of a reaction product. 160 parts by weight of isopropyl ether and hexamethylene diisocyanate 4.
03 parts by weight and 1.5 parts by weight of dibutyltin dilaurate were added and reacted at 65 ° C to 70 ° C for 8 hours to give the product 13
7.06 parts by weight were obtained. To the obtained product, 1.46 parts by weight of methacrylic chloride and 3.28 parts by weight of triethylamine were added and reacted at 65 ° C. to 70 ° C. until the OH group was exhausted to obtain 211.14 parts by weight of urethane dimethacrylate II.

【0024】合成例3 フルオロアルキル基を有するジオール(A3)30.1
3重量部、フルオロアルキル基を有するエポキシ(B
3)174.72重量部、BF3・O(C25)2 0.94
重量部を仕込み100℃で1時間反応させ、反応生成物
167.31重量部を得た。これにイソプロピルエーテ
ル160重量部、トルエンジイソシアネート4.20重
量部、ジブチルチンジラウレート1.5重量部を加え、
50℃〜55℃で20時間反応させ、生成物168.7
2重量部を得た。得られた生成物に塩化メタクリル1.
46重量部、トリエチルアミン3.28重量部を加え6
5℃〜70℃でOH基がなくなるまで反応させ、ウレタ
ンジメタクリレートIII 166.31重量部を得た。合成例4 フルオロアルキル基を有するジオール(A4)22.8
5重量部、フルオロアルキル基を有するエポキシ(B
4)131.04重量部、BF3・O(C25)2 0.94
重量部を仕込み100℃で1時間反応させ、反応生成物
125.68重量部を得た。これにイソプロピルエーテ
ル160重量部、ジフェニルメチレンジイソシアネート
6.00重量部、ジブチルチンジラウレート1.6重量部
を加え、70℃〜75℃で6時間反応させ、生成物12
9.55重量部を得た。得られた生成物に塩化アクリル
1.46重量部、トリエチルアミン3.28重量部を加え
65℃〜70℃でOH基がなくなるまで反応させ、ウレ
タンジアクリレートIV 127.70重量部を得た。
Synthesis Example 3 Diol (A3) 30.1 having fluoroalkyl group
3 parts by weight, epoxy having fluoroalkyl group (B
3) 174.72 parts by weight, BF 3 · O (C 2 H 5 ) 2 0.94
Part by weight was charged and reacted at 100 ° C. for 1 hour to obtain 167.31 parts by weight of a reaction product. To this, 160 parts by weight of isopropyl ether, 4.20 parts by weight of toluene diisocyanate, 1.5 parts by weight of dibutyltin dilaurate are added,
The reaction was carried out at 50 ° C to 55 ° C for 20 hours to give the product 168.7.
2 parts by weight were obtained. Methacryl chloride 1.
Add 46 parts by weight and 3.28 parts by weight of triethylamine, and add 6
The reaction was carried out at 5 ° C to 70 ° C until the OH groups disappeared to obtain 166.31 parts by weight of urethane dimethacrylate III. Synthesis Example 4 Fluoroalkyl group-containing diol (A4) 22.8
5 parts by weight, epoxy having fluoroalkyl group (B
4) 131.04 parts by weight, BF 3 · O (C 2 H 5 ) 2 0.94
One part by weight was charged and reacted at 100 ° C. for 1 hour to obtain 125.68 parts by weight of a reaction product. To this, 160 parts by weight of isopropyl ether, 6.00 parts by weight of diphenylmethylene diisocyanate and 1.6 parts by weight of dibutyltin dilaurate were added and reacted at 70 ° C to 75 ° C for 6 hours to give a product 12
Obtained 9.55 parts by weight. To the obtained product, 1.46 parts by weight of acrylic chloride and 3.28 parts by weight of triethylamine were added, and the mixture was reacted at 65 ° C. to 70 ° C. until the OH groups disappeared to obtain 127.70 parts by weight of urethane diacrylate IV.

【0025】合成例5 フルオロアルキル基を有するジオール(A5)28.4
5重量部、フルオロアルキル基を有するエポキシ(B
5)164.64重量部、BF3・O(C25)2 0.94
重量部を仕込み100℃で1時間反応させ、反応生成物
157.70重量部を得た。これにイソプロピルエーテ
ル160重量部、シクロヘキシルジイソシアネート3.
98重量部、ジブチルチンジラウレート1.4重量部を
加え、50℃〜55℃で6時間反応させ、生成物15
9.06重量部を得た。得られた生成物に塩化アクリル
1.46重量部、トリエチルアミン3.28重量部を加え
65℃〜70℃でOH基がなくなるまで反応させ、ウレ
タンジアクリレートV 156.79重量部を得た。この
ウレタンジアクリレートのIRスペクトル図を図1に示
す。合成例6 フルオロアルキル基を有するジオール(A6)33.2
6重量部、フルオロアルキル基を有するエポキシ(B
6)193.54重量部、BF3・O(C25)2 0.94
重量部を仕込み100℃で1時間反応させ、反応生成物
185.23重量部を得た。これにイソプロピルエーテ
ル160重量部、イソホロンジイソシアネート5.30
重量部、ジブチルチンジラウレート1.5重量部を加
え、55℃〜60℃で12時間反応させ、生成物18
7.45重量部を得た。得られた生成物に塩化アクリル
1.46重量部、トリエチルアミン3.28重量部を加え
65℃〜70℃でOH基がなくなるまで反応させ、ウレ
タンジアクリレートVI 184.77重量部を得た。
Synthesis Example 5 diol having a fluoroalkyl group (A5) 28.4
5 parts by weight, epoxy having fluoroalkyl group (B
5) 164.64 parts by weight, BF 3 · O (C 2 H 5 ) 2 0.94
The reaction mixture was charged at 100 parts by weight for 1 hour to obtain 157.70 parts by weight of a reaction product. 160 parts by weight of isopropyl ether and cyclohexyl diisocyanate 3.
98 parts by weight and 1.4 parts by weight of dibutyltin dilaurate were added and reacted at 50 ° C to 55 ° C for 6 hours to give a product 15
9.06 parts by weight was obtained. To the obtained product, 1.46 parts by weight of acrylic chloride and 3.28 parts by weight of triethylamine were added and reacted at 65 ° C. to 70 ° C. until the OH group was removed to obtain 156.79 parts by weight of urethane diacrylate V. The IR spectrum of this urethane diacrylate is shown in FIG. Synthesis Example 6 Diol having fluoroalkyl group (A6) 33.2
6 parts by weight, fluoroalkyl group-containing epoxy (B
6) 193.54 parts by weight, BF 3 · O (C 2 H 5 ) 2 0.94
The reaction mixture was charged at 100 parts by weight for 1 hour to obtain 185.23 parts by weight of a reaction product. 160 parts by weight of isopropyl ether and 5.30 isophorone diisocyanate
Parts by weight, and 1.5 parts by weight of dibutyltin dilaurate are added and reacted at 55 ° C. to 60 ° C. for 12 hours to give the product 18
7.45 parts by weight were obtained. Acrylic chloride (1.46 parts by weight) and triethylamine (3.28 parts by weight) were added to the obtained product, and the mixture was reacted at 65 ° C. to 70 ° C. until OH groups disappeared to obtain urethane diacrylate VI (184.77 parts by weight).

【0026】合成例7 フルオロアルキル基を有するジオール(A1)30.6
1重量部、イソプロピルエーテル160重量部、テトラ
メチレンジイソシアネート3.36重量部、ジブチルチ
ンジラウレート1.4重量部を加え、65℃〜70℃で
6時間反応させ、生成物33.47重量部を得た。得ら
れた生成物に塩化アクリル1.46重量部、トリエチル
アミン3.28重量部を加え65℃〜70℃でOH基が
なくなるまで反応させ、ウレタンジアクリレートVII 3
2.99重量部を得た。合成例8 フルオロアルキル基を有するジオール(A2)19.3
2重量部、イソプロピルエーテル160重量部、ヘキサ
メチレンジイソシアネート4.03重量部、ジブチルチ
ンジラウレート1.5重量部を加え、65℃〜70℃で
8時間反応させ、生成物23.03重量部を得た。得ら
れた生成物に塩化メタクリル1.46重量部、トリエチ
ルアミン3.28重量部を加え65℃〜70℃でOH基
がなくなるまで反応させ、ウレタンジメタクリレートVI
II 22.71重量部を得た。
Synthesis Example 7 Diol having fluoroalkyl group (A1) 30.6
1 part by weight, 160 parts by weight of isopropyl ether, 3.36 parts by weight of tetramethylene diisocyanate, 1.4 parts by weight of dibutyltin dilaurate were added and reacted at 65 ° C to 70 ° C for 6 hours to obtain 33.47 parts by weight of a product. It was To the obtained product, 1.46 parts by weight of acrylic chloride and 3.28 parts by weight of triethylamine were added, and the mixture was reacted at 65 ° C to 70 ° C until OH groups disappeared, and urethane diacrylate VII 3
2.99 parts by weight were obtained. Synthesis Example 8 Fluoroalkyl group-containing diol (A2) 19.3
2 parts by weight, 160 parts by weight of isopropyl ether, 4.03 parts by weight of hexamethylene diisocyanate and 1.5 parts by weight of dibutyltin dilaurate were added and reacted at 65 ° C to 70 ° C for 8 hours to obtain 23.03 parts by weight of the product. It was To the obtained product, 1.46 parts by weight of methacrylic chloride and 3.28 parts by weight of triethylamine were added, and the mixture was reacted at 65 ° C to 70 ° C until the OH groups disappeared.
22.71 parts by weight of II was obtained.

【0027】合成例9 フルオロアルキル基を有するジオール(A3)23.7
3重量部、イソプロピルエーテル160重量部、トルエ
ンジイソシアネート3.08重量部、ジブチルチンジラ
ウレート1.4重量部を加え、50℃〜55℃で15時
間反応させ、生成物27.54重量部を得た。得られた
生成物に塩化メタクリル1.46重量部、トリエチルア
ミン3.28重量部を加え65℃〜70℃でOH基がな
くなるまで反応させ、ウレタンジメタクリレートIX 2
7.15重量部を得た。合成例10 フルオロアルキル基を有するジオール(A4)17.9
9重量部、イソプロピルエーテル160重量部、ジフェ
ニルメチレンジイソシアネート6.00重量部、ジブチ
ルチンジラウレート1.5重量部を加え、70℃〜75
℃で5時間反応させ、生成物23.70重量部を得た。
得られた生成物に塩化アクリル1.46重量部、トリエ
チルアミン3.28重量部を加え65℃〜70℃でOH
基がなくなるまで反応させ、ウレタンジアクリレートX
23.36重量部を得た。
Synthesis Example 9 Diol (A3) having a fluoroalkyl group 23.7
3 parts by weight, 160 parts by weight of isopropyl ether, 3.08 parts by weight of toluene diisocyanate and 1.4 parts by weight of dibutyltin dilaurate were added and reacted at 50 ° C to 55 ° C for 15 hours to obtain 27.54 parts by weight of a product. . 1.46 parts by weight of methacryl chloride and 3.28 parts by weight of triethylamine were added to the obtained product, and the mixture was reacted at 65 ° C to 70 ° C until the OH groups disappeared, and urethane dimethacrylate IX 2
7.15 parts by weight were obtained. Synthesis Example 10 Fluoroalkyl group-containing diol (A4) 17.9
9 parts by weight, 160 parts by weight of isopropyl ether, 6.00 parts by weight of diphenylmethylene diisocyanate, 1.5 parts by weight of dibutyltin dilaurate were added, and the mixture was heated to 70 ° C to 75 ° C.
The reaction was carried out at 0 ° C for 5 hours to obtain 23.70 parts by weight of a product.
1.46 parts by weight of acrylic chloride and 3.28 parts by weight of triethylamine were added to the obtained product, and OH was added at 65 ° C to 70 ° C.
React until the group disappears, then urethane diacrylate X
23.36 parts by weight were obtained.

【0028】合成例11 フルオロアルキル基を有するジオール(A5)22.4
0重量部、イソプロピルエーテル160重量部、シクロ
ヘキシルジイソシアネート3.98重量部、ジブチルチ
ンジラウレート1.5重量部を加え、55℃〜60℃で
15時間反応させ、生成物159.06重量部を得た。
得られた生成物に塩化アクリル1.46重量部、トリエ
チルアミン3.28重量部を加え65℃〜70℃でOH
基がなくなるまで反応させ、ウレタンジアクリレートXI
156.79重量部を得た。合成例12 フルオロアルキル基を有するジオール(A6)30.6
02重量部、イソプロピルエーテル160重量部、イソ
ホロンジイソシアネート5.30重量部、ジブチルチン
ジラウレート1.4重量部を加え、65℃〜70℃で1
0時間反応させ、生成物31.07重量部を得た。得ら
れた生成物に塩化アクリル1.46重量部、トリエチル
アミン3.28重量部を加え65℃〜70℃でOH基が
なくなるまで反応させ、ウレタンジアクリレートXII 3
0.63重量部を得た。合成例で使用したジオールを第
I表に示し、得られたウレタンジアクリレートを第II表
に示す。
Synthesis Example 11 A diol having a fluoroalkyl group (A5) 22.4
0 parts by weight, 160 parts by weight of isopropyl ether, 3.98 parts by weight of cyclohexyl diisocyanate, and 1.5 parts by weight of dibutyltin dilaurate were added and reacted at 55 ° C to 60 ° C for 15 hours to obtain 159.06 parts by weight of a product. .
1.46 parts by weight of acrylic chloride and 3.28 parts by weight of triethylamine were added to the obtained product, and OH was added at 65 ° C to 70 ° C.
Urethane diacrylate XI
156.79 parts by weight were obtained. Synthesis Example 12 Fluoroalkyl group-containing diol (A6) 30.6
02 parts by weight, 160 parts by weight of isopropyl ether, 5.30 parts by weight of isophorone diisocyanate, 1.4 parts by weight of dibutyltin dilaurate were added, and the mixture was heated to 65 ° C to 70 ° C for 1 hour.
The reaction was carried out for 0 hours to obtain 31.07 parts by weight of the product. 1.46 parts by weight of acrylic chloride and 3.28 parts by weight of triethylamine are added to the obtained product, and the mixture is reacted at 65 ° C to 70 ° C until the OH group disappears, and urethane diacrylate XII 3
0.63 parts by weight were obtained. The diols used in the synthesis examples are shown in Table I and the urethane diacrylates obtained are shown in Table II.

【0029】[0029]

【表1】 [Table 1]

【0030】[0030]

【表2】 [Table 2]

【0031】[0031]

【表3】 [Table 3]

【0032】実施例1〜6および比較例1〜6 石英ガラスロッドを外径200μmに線引した直後、第
III表に示す組成の樹脂組成物を塗布し、紫外線硬化さ
せて、外径230μmのプラスチッククラッド光ファイ
バを得た。樹脂組成物の粘度および硬化後の23℃にお
ける波長589nmの屈折率、ならびにこれらの樹脂組成
物より得られたプラスチッククラッド光ファイバのNA
を第IV表に示す。
Examples 1 to 6 and Comparative Examples 1 to 6 Immediately after drawing the quartz glass rod to an outer diameter of 200 μm,
A resin composition having a composition shown in Table III was applied and ultraviolet-cured to obtain a plastic clad optical fiber having an outer diameter of 230 μm. Viscosity of resin composition and refractive index at a wavelength of 589 nm at 23 ° C. after curing, and NA of plastic clad optical fiber obtained from these resin compositions
Are shown in Table IV.

【0033】[0033]

【表4】 [Table 4]

【0034】[0034]

【表5】 [Table 5]

【0035】[0035]

【発明の効果】本発明のプラスチッククラッド光ファイ
バは、従来にくらべNAが大きいため光源から効率よく
光を取り込むことが出来る。従って、同一光源素子を使
用した場合、本光ファイバは従来のファイバを使用した
場合に比べ、より長距離の伝送を行うことが可能で、光
通信システム用およびライトガイド用光ファイバとして
有用である。
The plastic clad optical fiber of the present invention has a larger NA than the conventional one, and thus can efficiently take in light from the light source. Therefore, when the same light source element is used, the present optical fiber can perform longer distance transmission as compared with the case of using the conventional fiber, and is useful as an optical fiber for an optical communication system and a light guide. .

【図面の簡単な説明】[Brief description of drawings]

【図1】 合成例5で得られたウレタンジアクリレート
のIRスペクトル図を示す。
1 shows an IR spectrum diagram of the urethane diacrylate obtained in Synthesis Example 5. FIG.

───────────────────────────────────────────────────── フロントページの続き (72)発明者 的場 典子 兵庫県尼崎市西長洲町2丁目6番1号 株 式会社ナード研究所内 (72)発明者 中島 修弘 兵庫県尼崎市西長洲町2丁目6番1号 株 式会社ナード研究所内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Noriko Matoba Inventor Noriko Matoba 2-6-1, Nishi-Nagasu-cho, Amagasaki-shi, Hyogo Inside Nard Institute Co., Ltd. (72) Inventor Nobuhiro Nakajima 2-chome, Nishi-Nagasu-cho, Amagasaki-shi, Hyogo No. 6 No. 1 in Nard Institute Co., Ltd.

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】 一般式: 【化1】 [式中、Xは水素またはメチル基、Rはアルキル基、ア
リール基または環状アルキル基、jは0または1、kは
1〜30の整数、lは2〜30の整数、mは1または
2、およびnは3〜12の整数である。]で表されるウ
レタンジ(メタ)アクリレート。
1. A general formula: [In the formula, X is hydrogen or a methyl group, R is an alkyl group, an aryl group or a cyclic alkyl group, j is 0 or 1, k is an integer of 1 to 30, l is an integer of 2 to 30, and m is 1 or 2 , And n are integers of 3 to 12. ] The urethane di (meth) acrylate represented by these.
【請求項2】 アルキル基が-(CH2)4-または-(CH2)6-、
アリール基が 【化2】 または 【化3】 、環状アルキル基が 【化4】 または 【化5】 である請求項1記載のウレタンジ(メタ)アクリレー
ト。
2. The alkyl group is-(CH 2 ) 4 --or-(CH 2 ) 6- ,
The aryl group is Or [Chemical 3] , The cyclic alkyl group is Or [Chemical 5] The urethane di (meth) acrylate according to claim 1, wherein
【請求項3】 石英または光学ガラスをコアとし、コア
よりも低屈折率のプラスチックをクラッドとする光ファ
イバにおいて、クラッド材が一般式 【化6】 [式中、Xは水素またはメチル基、Rはアルキル基、ア
リール基または環状アルキル基、jは0または1、kは
1〜30の整数、lは2〜30の整数、mは1または
2、およびnは3〜12の整数である。]で表されるウ
レタンジ(メタ)アクリレートを含有する樹脂組成物の
硬化物からなることを特徴とするプラスチッククラッド
光ファイバ。
3. In an optical fiber having quartz or optical glass as a core and plastic having a refractive index lower than that of the core as a clad, the clad material has a general formula: [In the formula, X is hydrogen or a methyl group, R is an alkyl group, an aryl group or a cyclic alkyl group, j is 0 or 1, k is an integer of 1 to 30, l is an integer of 2 to 30, and m is 1 or 2 , And n are integers of 3 to 12. ] The plastic clad optical fiber which consists of the hardened | cured material of the resin composition containing the urethane di (meth) acrylate represented by these.
【請求項4】 アルキル基が-(CH2)4-または-(CH2)6-、
アリール基が 【化7】 または 【化8】 、環状アルキル基が 【化9】 または 【化10】 である請求項3記載のプラスチッククラッド光ファイ
バ。
4. The alkyl group is-(CH 2 ) 4 --or-(CH 2 ) 6- ,
The aryl group is Or , The cyclic alkyl group is Or The plastic clad optical fiber according to claim 3.
JP6068427A 1994-04-06 1994-04-06 New compound and plastic-clad optical fiber using same Pending JPH07278255A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6068427A JPH07278255A (en) 1994-04-06 1994-04-06 New compound and plastic-clad optical fiber using same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6068427A JPH07278255A (en) 1994-04-06 1994-04-06 New compound and plastic-clad optical fiber using same

Publications (1)

Publication Number Publication Date
JPH07278255A true JPH07278255A (en) 1995-10-24

Family

ID=13373389

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6068427A Pending JPH07278255A (en) 1994-04-06 1994-04-06 New compound and plastic-clad optical fiber using same

Country Status (1)

Country Link
JP (1) JPH07278255A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996013739A1 (en) * 1994-10-31 1996-05-09 Sumitomo Electric Industries, Ltd. Plastic-clad optical fiber
KR100487025B1 (en) * 2002-02-28 2005-05-11 주식회사 루밴틱스 Photo-curable resin composition for optical waveguide and optical waveguide prepared therefrom
JP2007023175A (en) * 2005-07-19 2007-02-01 Nippon Kayaku Co Ltd Low-refractive index resin composition and cured product thereof
US8222360B2 (en) 2009-02-13 2012-07-17 Visiogen, Inc. Copolymers for intraocular lens systems

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996013739A1 (en) * 1994-10-31 1996-05-09 Sumitomo Electric Industries, Ltd. Plastic-clad optical fiber
US5652821A (en) * 1994-10-31 1997-07-29 Sumitomo Electric Industries, Ltd. Plastic-clad optical fiber
KR100487025B1 (en) * 2002-02-28 2005-05-11 주식회사 루밴틱스 Photo-curable resin composition for optical waveguide and optical waveguide prepared therefrom
JP2007023175A (en) * 2005-07-19 2007-02-01 Nippon Kayaku Co Ltd Low-refractive index resin composition and cured product thereof
US8222360B2 (en) 2009-02-13 2012-07-17 Visiogen, Inc. Copolymers for intraocular lens systems
US8430928B2 (en) 2009-02-13 2013-04-30 Visiogen, Inc. Copolymers for intraocular lens systems
US8680172B2 (en) 2009-02-13 2014-03-25 Visiogen, Inc. Copolymers for intraocular lens systems

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