Title:
セルロースエステルの回収方法
Document Type and Number:
Japanese Patent JP3994622
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a recycled cellulose ester film by recycling a recovered cellulose ester to provide a method for covering the cellulose ester in a high yield and high purity from a film laminate for polarizing plate. SOLUTION: The method for recovering the cellulose ester from the film laminate for polarizing plate having the cellulose ester film comprises the steps of crushing or cutting the laminate for the polarizing plate, and then separating the cellulose ester film from the other films by an electrostatic separator.
Inventors:
Ueshima Takao
Nagaoka Shinsaku
Nagaoka Shinsaku
Application Number:
JP2000116409A
Publication Date:
October 24, 2007
Filing Date:
April 18, 2000
Export Citation:
Assignee:
Konica Minolta Holdings Co., Ltd.
International Classes:
B03C7/02; B29B17/02; B03C7/06; B29B17/04; B29C41/28; C08J5/18; C08J11/08; B29K1/00; B29K105/26; C08L1/10
Domestic Patent References:
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| JP5281686A | ||||
| JP2001213995A | ||||
| JP2001181440A | ||||
| JP6502122A | ||||
| JP51097681A | ||||
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| JP2000273199A |