Title:
HEAT-RESISTANT, FLUORINE-CONTAINING OPTICAL MATERIAL AND OPTICAL TRANSMISSION MEDIUM USING SAME
Document Type and Number:
WIPO Patent Application WO/2004/104058
Kind Code:
A1
Abstract:
A heat-resistant, fluorine-containing optical material is disclosed which has a high Tg and a low refractive index and satisfies mechanical strength and transparency in a balanced manner. In particular, a cladding material for plastic optical fibers is disclosed which can be used in high-temperature environments in engine compartments of automobiles or the like and is low in bend loss. The heat-resistant, fluorine-containing optical material is composed of a cured product of a polymer having a glass transition temperature of not less than 100&ring C which polymer contains a fluoroalkyl ester unit having a branched chain that is derived from an acrylic acid and a multifunctional acrylate unit.
Inventors:
TANAKA YOSHITO (JP)
ARAKI TAKAYUKI (JP)
ARAKI TAKAYUKI (JP)
Application Number:
PCT/JP2004/006826
Publication Date:
December 02, 2004
Filing Date:
May 20, 2004
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
TANAKA YOSHITO (JP)
ARAKI TAKAYUKI (JP)
TANAKA YOSHITO (JP)
ARAKI TAKAYUKI (JP)
International Classes:
C08F220/20; C08F220/24; G02B6/00; (IPC1-7): C08F220/20; C08F220/24; G02B6/00
Domestic Patent References:
| WO1989052287A1 |
Foreign References:
| JP2001290033A | 2001-10-19 | |||
| JPH1010340A | 1998-01-16 | |||
| JPH09311230A | 1997-12-02 | |||
| JPH02110112A | 1990-04-23 | |||
| JPH01266111A | 1989-10-24 | |||
| JPH01149808A | 1989-06-12 | |||
| EP0331056A2 | 1989-09-06 |
Attorney, Agent or Firm:
Asahina, Sohta (2-22 Tanimachi 2-chome, Chuo-ku, Osaka-sh, Osaka 12, JP)
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