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Title:
SHAPE-MEMORY LAMINATED POLYBUTYLENE TEREPHTHALATE FILM, PRODUCTION PROCESS AND USE THEREOF, AND PROCESS FOR PRODUCTION OF POLYBUTYLENE TEREPHTHALATE FILM
Document Type and Number:
WIPO Patent Application WO/2004/026577
Kind Code:
A1
Abstract:
A laminated polybutylene terephthalate film having an excellent shape memory and high dimensional stability under heat, which is obtained by (1) bonding a polybutylene terephthalate film to another film or a laminated film and forming the obtained laminate at a temperature (T1) not higher than the glass transition temperature of the polybutylene terephthalate while keeping it in the first shape, (2) forming the obtained shaped laminate into the second shape at a temperature (T2) exceeding the above glass transition temperature, and (3) cooling the obtained shaped laminate to a temperature (T3) not higher than the above glass transition temperature.

Inventors:
KAGAWA SEIJI (JP)
Application Number:
PCT/JP2003/012102
Publication Date:
April 01, 2004
Filing Date:
September 22, 2003
Export Citation:
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Assignee:
KAGAWA SEIJI (JP)
International Classes:
B29C47/06; B29C47/88; B29C48/90; B29C48/92; B29C55/28; B29C61/06; B32B37/20; B29C35/16; B29C47/00; B32B37/12; B32B37/15; (IPC1-7): B32B27/36; B29C55/28
Foreign References:
JP2002030206A2002-01-31
JPH0760833A1995-03-07
EP0287246A21988-10-19
JPH07299857A1995-11-14
JP2002059487A2002-02-26
Other References:
See also references of EP 1547767A4
Attorney, Agent or Firm:
Takaishi, Kitsuma (67 Kagurazaka 6-chom, Shinjuku-ku Tokyo, JP)
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