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:
Mar. 01, 2016
Filed:
Oct. 19, 2006
Noriyasu Kuzuhara, Tokyo, JP;
Takashi Murakami, Tokyo, JP;
Noriyasu Kuzuhara, Tokyo, JP;
Takashi Murakami, Tokyo, JP;
KONICA MINOLTA OPTO, INC., Tokyo, JP;
Abstract
A cellulosic resin film which is wide and, despite this, is extremely reduced in breakage during a stretching step; a process for producing the film; and an antireflection film, a polarizer, and a liquid-crystal display each comprising or employing the film. The process for cellulosic resin film production comprises casting a liquid cellulosic resin on a support to form a web, peeling the web from the support, subsequently drying the web in a first edge gripping step () while gripping both edges, temporarily eliminating the edge gripping, and then stretching both edges in the width direction in a second edge gripping step (). The process is characterized in that the first edge gripping step is followed by a heat treatment step in which both edge parts of the web relieved from the edge gripping are heated with heating rolls (and).