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Title:
CROSSLINKABLE FLUORINE-CONTAINING AROMATIC PREPOLYMER AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2006/137327
Kind Code:
A1
Abstract:
Disclosed is a crosslinkable fluorine-containing aromatic prepolymer which enables to obtain a cured product having high transparency, low relative dielectric constant, high heat resistance, low birefringence and high flexibility. Also disclosed is use of such a prepolymer. Specifically disclosed is a crosslinkable fluorine-containing aromatic prepolymer obtained by condensing a compound (Y-1) having a polymerizable double bond (A) and a phenolic hydroxyl group and/or a compound (Y-2) having a polymerizable double bond (A) and a fluorine atom-substituted aromatic ring, a fluorine-containing aromatic compound (B) represented by the formula (1) below and a compound (C) having 3 or more phenolic hydroxyl groups which are not present in a same aromatic ring in the presence of a dehydrofluorinating agent. This crosslinkable fluorine-containing aromatic prepolymer has a polymerizable double bond (A) and an ether bond, while having a number-average molecular weight of from 1 × 103 to 5 × 105. (1) (In the formula, n represents an integer of 0-3; a and b independently represent 0 or an integer of 1-3; and Rf1 and Rf2 respectively represent a fluorine-containing alkyl group having 8 or less carbon atoms.)

Inventors:
ERIGUCHI TAKESHI (JP)
ITO MASAHIRO (JP)
TSURUOKA KAORI (JP)
ISHIBASHI YUICHIRO (JP)
Application Number:
PCT/JP2006/312056
Publication Date:
December 28, 2006
Filing Date:
June 15, 2006
Export Citation:
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Assignee:
ASAHI GLASS CO LTD (JP)
ERIGUCHI TAKESHI (JP)
ITO MASAHIRO (JP)
TSURUOKA KAORI (JP)
ISHIBASHI YUICHIRO (JP)
International Classes:
C08G65/40; C07C43/29; C08F212/06; C08F299/02; C08G65/48; C08L71/10
Foreign References:
JP2005105115A2005-04-21
JP2003217343A2003-07-31
JPH05502257A1993-04-22
JPH10247646A1998-09-14
JPH1074750A1998-03-17
JP2002356551A2002-12-13
JP2003231750A2003-08-19
Other References:
See also references of EP 1897897A4
Attorney, Agent or Firm:
Senmyo, Kenji (38 Kanda-Higashimatsushitach, Chiyoda-ku Tokyo 42, JP)
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