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:
Oct. 31, 2000
Filed:
Aug. 25, 1998
Sadao Nishibori, Tokyo, JP;
Ein Kohsan Co., Ltd., Tokyo, JP;
Abstract
A method for recycling a photographic film is provided. The method comprises shredding the photographic film into a plurality of fragments to be processed; swelling the fragments to be processed formed in the shredding step by dipping each of these fragments to be processed into hot water; and drying the fragments to be processed swollen in the swelling step by applying an impact frictional striking force to each of these fragments to be processed, peeling layers other than a resin material base of the photographic film, i.e., a protective coat, an emulsion layer, and a base coat layer, from each fragment to be processed and classifying these layers, and grading the resin material base so as to be resin material to be recovered.