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:
Apr. 17, 2001
Filed:
Apr. 02, 1999
Applicant:
Inventors:
Ayako Shibata, Ibaraki, JP;
Nobuhiro Shibuya, Ibaraki, JP;
Assignee:
Oji-Yuka Synthetic Paper Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B29C 5/512 ; B29C 7/104 ; B32B 3/100 ;
U.S. Cl.
CPC ...
B29C 5/512 ; B29C 7/104 ; B32B 3/100 ;
Abstract
A process for treating a surface of a thermoplastic resin film (i) which includes subjecting the surface of the thermoplastic resin film (i) to a first oxidation treatment, coating the oxidized surface with a surface modifier, subsequently stretching the film, subjecting that surface of the thermoplastic resin film (i) which has been coated with the surface modifier to a second oxidation treatment, and then coating the oxidized surface with a surface modifier.