Title:
【発明の名称】水性接着剤及び接着方法
Document Type and Number:
Japanese Patent JP3478343
Kind Code:
B2
Abstract:
PURPOSE:To obtain an aqueous adhesive suitable for non-rigid polyvinyl chloride or decorative paper, etc., having excellent adhesiveness especially at low temperature, comprising a crystalline polyurethane as an essential component. CONSTITUTION:The objective adhesive comprising a crystalline polyurethane obtained by reacting (A) a crystalline polyester polyol preferably having 1,000-3,500 number-average molecular weight, composed of a polyester diol preferably prepared by reacting polymethylenediol with a polymethylene dicarboxylic acid with (B) a polyisocyanate such as 2,4-tolylene diisocyanate as an essential component. The endothermic peak of the resin by differential thermal analysis exists at 30-100 deg.C (preferably 30-80 deg.C) and strength thereof is 5-30cal/g (preferably 7-15cal/g).
Inventors:
Yoshifumi Tamaki
Reisaburo Tomioka
Reisaburo Tomioka
Application Number:
JP9856191A
Publication Date:
December 15, 2003
Filing Date:
April 30, 1991
Export Citation:
Assignee:
Dainippon Ink and Chemicals Co., Ltd.
International Classes:
B29C65/52; B32B27/10; C09J175/00; C09J175/06; B29K101/00; (IPC1-7): C09J175/06; B29C65/52; B32B27/10
Domestic Patent References:
| JP63162719A | ||||
| JP6369882A | ||||
| JP59223776A | ||||
| JP54111550A | ||||
| JP3152112A | ||||
| JP63305118A | ||||
| JP6126682A | ||||
| JP60135472A | ||||
| JP60188485A | ||||
| JP6119679A | ||||
| JP55110173A | ||||
| JP6414287A | ||||
| JP6454088A | ||||
| JP59197482A |
Other References:
【文献】米国特許5270383(US,A)
Attorney, Agent or Firm:
Victory Takahashi