CLAD MATERIAL FOR OPTICAL FIBER

Title:

CLAD MATERIAL FOR OPTICAL FIBER

Document Type and Number:

Japanese Patent JPH0248603

Kind Code:

A

Abstract:

PURPOSE:To obtain a clad material having the rubber-like elasticity necessary for forming an optical fiber having resilience by using a copolymer of 30-94wt.% acrylate expressed by the special general formula and 70-6wt.% (meth)acrylate. CONSTITUTION:The clad material for the optical fiber having a photosetting property is constituted of the copolymer of 30-94wt.% acrylate expressed by the formula I: CH2=CRCOO(CH2CH2)$dl$XY and 70-6wt.% (meth)acrylate expressed by the formula II: CH2=CRCOO(CH2CH2O) Y. In the general formula I, X is a fluorine atom, hydrogen atom; (n) is 1-2 integer; (m) is 1-8 integer. In the general formula II, R is a hydrogen atom or methyl group; Y is a dicyclopentenyl group or glycidyl group and (l) is 0 or 2. The rubber-like elastic clad material which is transparent and has a low refractive index is easily formed by photosetting this clad material.

Inventors:

NAKAGOME SEIJI
SASAKI YASUYORI

Application Number:

JP19945188A

Publication Date:

February 19, 1990

Filing Date:

August 10, 1988

Export Citation:

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Assignee:

NOK CORP

International Classes:

G02B6/00; B29D11/00; C08F20/10; C08F20/22; C08F20/32; C08F220/22; C08F220/26; C08F220/32; C08F220/40; (IPC1-7): B29D11/00; C08F220/22; C08F220/26; C08F220/32; C08F220/40; G02B6/00

Attorney, Agent or Firm:

Toshio Yoshida

Next Patent: COATED OPTICAL FIBER