Title:
HOT-MELT ADHESIVE FOR BOOKBINDING AND CALENDAR PRODUCTION
Document Type and Number:
Japanese Patent JP3912508
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a hot-melt adhesive which is excellent in workability and bonding characteristics in bookbinding and calendar production, and is hardly disintegrated even in the step of fibrillation by a pulper in reclaiming waste paper so that the amount of a hot-melt adhesive passing through a filter can be a standard value or lower in a practical test method.
SOLUTION: The hot-melt adhesive contains (A) 40-65 wt.% of an ethylene copolymer containing at least 5 wt.% of a highly crystalline ethylene/vinyl acetate copolymer, (B) 20-45 wt.% of a tackifier resin, and (C) 5-30 wt.% of a wax. It has 50% modulus strength of 20-40 kgf/cm2 in the tensile test at 23°C and an RH of 65%, and a melt viscosity at 180°C of 1,000-10,000 mPas. It is excellent in workability because of its fast solidifying speed when used. Since it is not disintegrated in the step of fibrillation by a pulper in reclaiming as waste paper and can facilitate filtration by a filter, it is suitable for bookbinding and calendar production without adversely affecting a paper-making step and the quality of paper.
Inventors:
Yoshihiro Kitahata
Naoichi Arima
Naoichi Arima
Application Number:
JP2002166718A
Publication Date:
May 09, 2007
Filing Date:
June 07, 2002
Export Citation:
Assignee:
Nissin Chemical Industry Co., Ltd.
International Classes:
B42C9/00; C09J131/04; C09J123/04; C09J191/06; (IPC1-7): C09J123/04; B42C9/00; C09J131/04; C09J191/06
Domestic Patent References:
| JP2001354940A | ||||
| JP11092731A | ||||
| JP11323279A |
Attorney, Agent or Firm:
Takashi Kojima
Saori Shigematsu
Katsunari Kobayashi
Saori Shigematsu
Katsunari Kobayashi
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