Title:
LIQUID CRYSTAL POLYMER FILM
Document Type and Number:
Japanese Patent JP2004322653
Kind Code:
A
Abstract:
To provide an especially flat film which has the almost uniform coefficient of thermal expansion in all the planar directions despite the coefficient of thermal expansion in each layer is locally nonuniform corresponding to the directions, and its manufacturing method.
The liquid crystal polymer film is constituted as follows. Two separate intermediate body films, which have the substantial biaxial orientation respectively, are formed of a liquid crystal polymer having thermally and chemically high stability by using a double-ringe-like tube extrusion die, Next, the intermediate body films are laminated with a continuous method so as to form a biaxially oriented integrated film structure.
Inventors:
HARVEY ANDREW C
LUSIGNEA RICHARD W
RUBIN LESLIE S
LUSIGNEA RICHARD W
RUBIN LESLIE S
Application Number:
JP2004188493A
Publication Date:
November 18, 2004
Filing Date:
June 25, 2004
Export Citation:
Assignee:
FOSTER MILLER INC
International Classes:
B29C48/10; B29C48/305; B29C48/33; B29C48/34; B29C48/92; B29C55/00; B29C55/02; B29C55/26; B29C55/28; B29D7/01; B32B7/02; B32B7/04; C08J5/18; C08L67/00; C08L79/06; C08L101/12; C09K19/38; H05K1/03; B29K79/00; B29K81/00; B29K101/12; B29L7/00; B29L9/00; (IPC1-7): B29C47/04; B29C47/14; B29C55/26
Attorney, Agent or Firm:
Aoyama Aoi
Masaki Yano
Masaki Yano
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