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:
Apr. 11, 2006
Filed:
Apr. 25, 2003
Shinji Yano, Gifu, JP;
Kouji Kubo, Gifu, JP;
Makoto Handa, Gifu, JP;
Tetsuo Ichihashi, Gifu, JP;
Kei Mizutani, Gifu, JP;
Shigeyuki Watanabe, Gifu, JP;
Shinji Yano, Gifu, JP;
Kouji Kubo, Gifu, JP;
Makoto Handa, Gifu, JP;
Tetsuo Ichihashi, Gifu, JP;
Kei Mizutani, Gifu, JP;
Shigeyuki Watanabe, Gifu, JP;
Teijin DuPont Films Japan Limited, Tokyo, JP;
Abstract
There is provided a laminated film for optical use comprising a polyester film which has a lubricity layer containing globular particles in at least one side thereof, wherein the laminated film has a thickness irregularity of 0.5 to 7.0%, and wherein the polyester film contains inert particles derived from catalysts and the amount of the inert particles determined by a dark-field microscopy satisfies the following conditions: The laminated film for optical use which is improved in uniformity, transparency, lubricity, color tone and scratch resistance, which deposits only a reduced amount of low molecular materials, and which is excellent in the adhesion to a layer adopted for various optical purposes.