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:
Jul. 15, 2008
Filed:
Dec. 31, 2003
Kenichi Kazama, Hino, JP;
Takeshi Tanaka, Hino, JP;
Masakazu Kurokawa, Hino, JP;
Konica Corporation, Tokyo, JP;
Abstract
Disclosed is a cellulose ester film having a dry thickness of 20 to 60 μm, wherein the cellulose ester film is manufactured according to a solution cast film manufacture process comprising the steps of providing a cellulose ester dope, casting the cellulose ester dope on a support to form a cellulose ester web, peeling the cellulose ester web at a peel position from the support, transporting the peeled web to a dryer, drying the peeled web therein to form a cellulose ester film, and winding the cellulose ester film around a spool, the residual solvent content at the winding step of the cellulose ester film being not more than 0.05% by weight.