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:
Nov. 20, 2001
Filed:
Feb. 29, 2000
Applicant:
Inventors:
Isamu Michihata, Hino, JP;
Masahito Takada, Hino, JP;
Kunio Shimizu, Hino, JP;
Koichi Nagayasu, Hino, JP;
Noriki Tachibana, Hino, JP;
Assignee:
Konica Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08L 1/12 ; C09D / ; B32B 2/320 ; G02F 1/1335 ;
U.S. Cl.
CPC ...
C08L 1/12 ; C09D / ; B32B 2/320 ; G02F 1/1335 ;
Abstract
A cellulose triacetate film characterized in being comprised of cellulose triacetate which is prepared by employing cotton liter as the raw material, having a value of weight average molecular weight Mw/number average molecular weight Mn of 3.5 to 4.5, or being comprised of cellulose triacetate which is prepared by employing wood pulp as the raw material, having a value of weight average molecular weight Mw/number average molecular weight Mn of 4.0 to 5.0.