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:
Aug. 10, 2004
Filed:
Jul. 26, 2002
Yukihiro Katai, Kanagawa, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
A cellulose acylate film formed from a solution of cellulose acylate contains a solvent of the solution at 0.1-0.6 wt. %, and acids at less than 500 ppm. The solvent is composed of at least one of esters and ketones, and further a recycled solvent recycled from the solution. In order to produce the cellulose acylate film, the solution is applied on a dope band moving in a direction, and dried to contain the solvent between 10-80 wt. % to the cellulose acylate. Thus a film-like material is formed from the solution, and peeled from the dope band. Thereafter the film-like material is further dried to form the cellulose acylate film containing the solvent at between 0.1 and 0.6 wt. %.