申请人:KONISHI CO., LTD.
公开号:EP1837360A1
公开(公告)日:2007-09-26
To provide vinyl-urethane copolymers that can form cured articles having excellent hot-water resistance, water resistance, heat resistance, and weather resistance, and to provide production methods thereof.
A vinyl-urethane copolymer contains at least one vinyl polymer chain and at least one urethane polymer chain, in which the vinyl polymer chain is combined with the urethane polymer chain through a linkage segment having a silicon-oxygen bond.
A method produces a vinyl-urethane copolymer comprising at least one vinyl polymer chain and at least one urethane polymer chain, in which the vinyl polymer chain is combined with the urethane polymer chain through a linkage segment having a silicon-oxygen bond, by following Steps (X) and (Y): Step (X) of carrying out preparation of an aqueous dispersion or aqueous solution of a urethane polymer (A) having at least one silicon-containing hydrolyzable group; and Step (Y) of, in the aqueous dispersion or aqueous solution of the urethane polymer (A) having at least one silicon-containing hydrolyzable group, carrying out polymerization of an ethylenically unsaturated monomer (B) and carrying out preparation of a vinyl-urethane copolymer using a compound (C) having at least one functional group reactive with a silicon-containing hydrolyzable group and at least one functional group reactive with an ethylenically unsaturated bond-containing group in at least one period selected from before the polymerization reaction, during the polymerization reaction, and after the polymerization reaction.
提供可形成具有优异耐热水性、耐水性、耐热性和耐候性的固化物的乙烯基-聚氨酯共聚物,并提供其生产方法。
乙烯基-聚氨酯共聚物包含至少一条乙烯基聚合物链和至少一条聚氨酯聚合物链,其中乙烯基聚合物链通过具有硅氧键的连接段与聚氨酯聚合物链结合。
一种生产乙烯基-聚氨酯共聚物的方法,该共聚物包括至少一条乙烯基聚合物链和至少一条聚氨酯聚合物链,其中乙烯基聚合物链通过具有硅氧键的连接段与聚氨酯聚合物链结合,具体方法如下: 步骤(X)和步骤(Y):步骤(X):制备具有至少一个含硅可水解基团的聚氨酯聚合物(A)的水分散液或水溶液;步骤(Y),在具有至少一个含硅可水解基团的聚氨酯聚合物 (A) 的水分散体或水溶液中在聚合反应前、聚合反应中和聚合反应后的至少一个选自聚合反应前、聚合反应中和聚合反应后的时期内,使用具有至少一个与含硅可水解基团反应的官能团和至少一个与含乙烯基不饱和键基团反应的官能团的化合物 (C) 进行乙烯基不饱和单体 (B) 的聚合,并制备乙烯基聚氨酯共聚物。