The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 17, 2015
Filed:
Apr. 12, 2012
Tetsuo Okuyama, Otsu, JP;
Kazuyuki Ouya, Otsu, JP;
Toshiyuki Tsuchiya, Otsu, JP;
Naoki Watanabe, Otsu, JP;
Satoshi Maeda, Otsu, JP;
Tetsuo Okuyama, Otsu, JP;
Kazuyuki Ouya, Otsu, JP;
Toshiyuki Tsuchiya, Otsu, JP;
Naoki Watanabe, Otsu, JP;
Satoshi Maeda, Otsu, JP;
Toyobo Co., Ltd., Osaka, JP;
Abstract
The invention provides a laminate of a substrate, a polyimide film, and a coupling treatment layer interposed therebetween, which provides different delamination strengths between the substrate and the polyimide film to form a prescribed pattern. The invention also provides a method for producing such a laminate formed from at least a substrate and a polyimide film, whereby, using a film obtained by plasma treatment of at least the surface facing the substrate as the polyimide film, coupling agent treatment is performed on at least one of the surfaces facing the substrate and the polyimide film to form a coupling treatment layer, deactivation treatment is performed on a portion of the coupling treatment layer to form a pre-determined pattern, and then pressing and heating are performed with the substrate and polyimide film overlapping.