Title:
METHOD FOR SEPARATING LAMINATED PAPER
Document Type and Number:
Japanese Patent JP3245691
Kind Code:
B2
Abstract:
PURPOSE: To surely separate laminated paper having water-impermeable sub stance layers laminated to both sides of a paper layer, especially laminated paper containing aluminum layers, into paper stock and other substances rapidly and without deteriorating physical properties.
CONSTITUTION: In a method for separating laminated paper by dispersing laminated paper having water-impermeable substance layers laminated to both sides of a paper layer into water to separate paper, 0.2-1.0wt.% nonionic or nonionic-anionic mixed surfactant based on paper stock of the laminated paper is added to the dispersion.
Inventors:
Naokazu Sakoda
Koichi Harada
Yasuyuki Ono
Hisashi Inaba
Koichi Harada
Yasuyuki Ono
Hisashi Inaba
Application Number:
JP35306692A
Publication Date:
January 15, 2002
Filing Date:
December 10, 1992
Export Citation:
Assignee:
Rengo Co., Ltd.
Sumitomo Chemical Co., Ltd.
Sumitomo Chemical Co., Ltd.
International Classes:
D21B1/02; D21B1/08; D21B1/32; (IPC1-7): D21B1/32
Domestic Patent References:
| JP5070602A | ||||
| JP63135585A | ||||
| JP4209880A |
Attorney, Agent or Firm:
Hiroshi Ozeki
Previous Patent: Diversion accessories and analyzers with diversion accessories
Next Patent: PRINTED WIRING BOARD
Next Patent: PRINTED WIRING BOARD