Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
HIGHLY ADHESIVE POLYIMIDE FILM AND METHOD FOR PRODUCING THE SAME
Document Type and Number:
Japanese Patent JP2008201937
Kind Code:
A
Abstract:

To provide a polyimide film improved in adhesiveness.

This polyimide film comprising (1) a polyimide obtained from 1,4-phenylenediamine, 4,4'-diaminodiphenyl ether, and pyromellitic dianhydride and (2) inorganic particles having particle size in a range of 0.01 to 1.5 m and having an average particle size of 0.05 to 0.7 m in an amount of 0.1 to 0.9 wt.% based on the weight of the polyamic acid is characterized in that the polyimide film has a surface free energy of 80 mN/m measured on the basis of a contact angle method by applying an electric discharge treatment to the film. The present invention further includes a method for producing the polyimide film.


Inventors:
YASUDA MASABUMI
ISHIKAWA HIRONORI
Application Number:
JP2007040947A
Publication Date:
September 04, 2008
Filing Date:
February 21, 2007
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
TORAY DU PONT KK
International Classes:
C08G73/10; C08J5/18
Attorney, Agent or Firm:
Yoshikazu Tani
Kazuo Abe