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)
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:
Assignee:
ASAHI GLASS CO LTD (JP)
ERIGUCHI TAKESHI (JP)
ITO MASAHIRO (JP)
TSURUOKA KAORI (JP)
ISHIBASHI YUICHIRO (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:
JP2005105115A | 2005-04-21 | |||
JP2003217343A | 2003-07-31 | |||
JPH05502257A | 1993-04-22 | |||
JPH10247646A | 1998-09-14 | |||
JPH1074750A | 1998-03-17 | |||
JP2002356551A | 2002-12-13 | |||
JP2003231750A | 2003-08-19 |
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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