Title:
【発明の名称】光硬化性ハロフッ素化アクリレートの新規な製造方法
Document Type and Number:
Japanese Patent JP2002529548
Kind Code:
A
Abstract:
Halofluorinated alkylene monomers are made by a method comprising the steps of: (a) subjecting a first polymer which is the reaction product of a fluorinated vinyl monomer and a vinyl comonomer to dehydrohalogenation to form a second polymer; (b) treating the second polymer with an oxidizing agent to form an oxidation product consisting of a alpha , omega -dicarboxylic acid or an ester derivative thereof; and (c) treating said oxidation product with a reducing agent to form a reduction product consisting of a alpha , omega -diol. Preferably, the first polymer has a structure of -ÄCH2CYZ(CF2CFX)nÜm- wherein X and Y = F, Cl or Br; X and Y may be the same or different; Z = H, F, Cl, Br, alkyl or perfluoroalkyl containing from about 1 to about 10 carbon atoms; n = an integer larger than about 1; and m is an integer between about 2 and about 10<5>. The alpha , omega -dicarboxylic acids and alpha , omega -diols produced herein can be directly used as polycondensation monomers. Alternatively, the alpha , omega -dicarboxylic acids and alpha , omega -diols can be further derivitized to tri-, tetra- or other multifunctional alcohols which may be directly used as condensation monomers or they may be converted to acrylates which may be photocured in the presence of a radical photoinitiator into transparent polymers which are useful as optical waveguiding materials.
Inventors:
Wu, change
Shu, Bao Pay
Yardley, james tee
Shu, Bao Pay
Yardley, james tee
Application Number:
JP2000580964A
Publication Date:
September 10, 2002
Filing Date:
November 09, 1999
Export Citation:
Assignee:
Corning Incorporated
International Classes:
C07C29/147; C07C29/149; C07C31/42; C07C51/093; C07C51/285; C07C55/32; C07C67/08; C07C67/14; C07C69/63; C07C69/653; C08F8/00; C08F8/04; C08F8/06; C08F8/26; C08F14/18; C08G63/682; C08G64/10; G02B6/12; C08G69/42; (IPC1-7): C08F8/00; C07C29/147; C07C31/42; C07C51/093; C07C55/32; C07C67/08; C07C67/14; C07C69/63; C07C69/653; C08F8/04; C08F8/06; C08F8/26; C08F14/18; C08G63/682; C08G64/10; C08G69/42; G02B6/12
Domestic Patent References:
| JPH06279537A | 1994-10-04 | |||
| JPH10158376A | 1998-06-16 | |||
| JPS59117503A | 1984-07-06 | |||
| JPS388591B1 | ||||
| JP2001500880A | 2001-01-23 | |||
| JP2001521519A | 2001-11-06 | |||
| JP2000516982A | 2000-12-19 |
Foreign References:
| WO1998012163A1 | 1998-03-26 | |||
| WO1998046556A1 | 1998-10-22 | |||
| WO1998008880A1 | 1998-03-05 |
Attorney, Agent or Firm:
Seiji Yanagida (1 person outside)