| 摘要 |
PROBLEM TO BE SOLVED: To obtain a two-package adhesive composition that does not deteriorate in bonding performances during aging under the influence of water or moisture and is freed from a problem of polluting a working environment by preparing a base containing an acetoacetyl-terminated polyol and a curing agent containing an amino-terminated compound. SOLUTION: It is desirable that at least either the base or the curing agent contains a mixture of at least two members selected from a polyether, a polyether polyurethane, a polyester, and a polyester urethane. The base is exemplified by an acetoacetyl-terminated polyester polyurethane resin obtained by reacting tolylene diisocyanate with a polyester polyol obtained from terephthalic acid, isophthalic acid, adipic acid, ethylene glycol, neopentyl glycol, and 1,6- hexanediol and reacting the obtained polyester urethane polyol with t-butyl acetoacetate. The curing agent is exemplified by triethylenetetramine.
|
