Title:
クロロプレンラテックス組成物からなる水系接着剤およびその製造方法
Document Type and Number:
Japanese Patent JP3995362
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a chloroprene latex composition having excellent initial tack, especially, wet adhesive performances and a balance between it and heat resistance by specifying the polymerization temperature, the gel content of the chloroprene polymer, the weightaverage molecular weight of the sol, and the Na and K ion contents of the latex. SOLUTION: This composition is obtained by polymerizing chloroprene or copolymerizing chloroprene with a monomer copolymerizable therewith at a temperature below 30 deg.C, contains at least one member selected from among rosin acid, sodium rosinate, and potassium rosinate and sodium hydroxide and/or potassium hydroxide, and has a content of Na ions in the chloroprene latex of 0.15-1.0 wt. based on the solids of the latex, and a content of K ions of 0.15-1.0 wt.% based on the solids of the latex. Further, the chloroprene polymer contains a gel content of 3-40 wt.%, and the weight-average molecular weight of the sol is at least 400,000.
Inventors:
Hiroaki Ohba
Mikio Yamaguchi
Masafumi Hiura
Mikio Yamaguchi
Masafumi Hiura
Application Number:
JP12589699A
Publication Date:
October 24, 2007
Filing Date:
May 06, 1999
Export Citation:
Assignee:
DENKI KAGAKU KOGYO KABUSHIKI KAISHA
International Classes:
C08L11/02; C09J111/02; C08F2/26; C08F36/18; C08K3/22; C08L93/04
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