Title:
メチルフェニルポリシロキサンジオール及びその製造方法、並びに液状放射線硬化型樹脂組成物、光ファイバ用被覆組成物及び光ファイバ
Document Type and Number:
Japanese Patent JP4288453
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a methylphenyl polysiloxanediol, its manufacturing method, and a liquid radiation-curable resin composition which comprises a urethane acrylate oligomer to be derived from this polysiloxane and having good compatibility with an organic compound, can obtain a cured product having a high refractive index and a low Tg (glass transition temperature), and is useful as the primary coating material for an optical fiber. SOLUTION: The methylphenyl polysiloxanediol having hydroxyl groups at the terminals is represented by average structural formula (1) (wherein R<1> , R<2> , and R<3> are each a divalent hydrocarbon group; m and n are each an integer of >=0; p, q, and r are each an integer of >=1; s and t are each an integer of >=0 and s and t are simultaneously not 0; and b is an integer of >=1).
Inventors:
Shohei Kosakai
Application Number:
JP2001148748A
Publication Date:
July 01, 2009
Filing Date:
May 18, 2001
Export Citation:
Assignee:
Shin-Etsu Chemical Co., Ltd.
International Classes:
C08G77/50; C03C25/10; G02B6/44; C03C25/24; C08F290/06; C08G18/67; C08L83/05; C08L83/07; C09D4/00; C09D5/00; C09D143/04; C09D175/14; C09D183/08
Domestic Patent References:
| JP2000351817A | ||||
| JP2209911A |
Attorney, Agent or Firm:
Takashi Kojima
Yuko Nishikawa
Yuko Nishikawa
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