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. 29, 2003
Filed:
Sep. 18, 2000
Satoshi Sakamaki, Minami-Ashigara, JP;
Atsushi Adachi, Minami-Ashigara, JP;
Toshihiko Minatoya, Minami-Ashigara, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
A cellulose triacetate film having a film thickness from 115 to 135 &mgr;m and a Z value of 0.3 or less wherein the Z value is a slope (g/° C.) obtained by plotting tear strength against temperature in a range between −20° C. and +23° C., and a process for producing the same characterized by drying cast film using drying wind having a temperature T° C. which satisfies T −15<T<T , wherein temperature T° C. of the drying wind is in an arbitrary volatile component region and the temperature T ° C. is at an inflexion point obtained by plotting tear strength W of the cellulose triacetate film after drying at the temperature T° C. against drying wind temperature. The film is excellent in low temperature strength, and resistant to breakage of perforations during rewinding under low temperature conditions.