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:
Dec. 21, 2004
Filed:
May. 09, 2001
Applicant:
Inventors:
Assignee:
Kuraray Co., Ltd., Kurashiki, JP;
Primary Examiner:
Int. Cl.
CPC ...
B32B 3/108 ; B28B 3/20 ; C08J 5/00 ;
U.S. Cl.
CPC ...
B32B 3/108 ; B28B 3/20 ; C08J 5/00 ;
Abstract
A polyvinyl alcohol film obtained by casting on drum, in which the variance in thickness along the TD direction of the film is 0.5 &mgr;m/mm or less, the thickness of the film is within the range of 20 to 150 &mgr;m, and the width of the film is at least 2 m.