申请人:Kaneka Corporation
公开号:EP1990371A1
公开(公告)日:2008-11-12
The present invention has its object to provide a curable composition which comprises a reactive silyl group-containing organic polymer, does not contain, as a silanol condensation catalyst, any organotin type curing catalyst currently of concern because of the toxic feature thereof, is excellent in surface curability and depth curability and, further, can provide cured products excellent in adhesiveness; the above obj ect can be achieved by a curable composition which comprises: an organic polymer (A) containing a silicon-containing group capable of crosslinking under siloxane bond formation; and a guanidine compound (B-1), as a silanol condensation catalyst (B), represented by the general formula (1):
R1N=C(NR12)2 (1)
(wherein one of the five R1s is an aryl group and the other four R1s each independently is a hydrogen atom or a hydrocarbon group in which the carbon atom at position 1 is saturated).
本发明的目的是提供一种可固化组合物,该组合物包括含活性硅烷基团的有机聚合物,作为硅烷醇缩合催化剂,不含任何目前因其毒性特征而受到关注的有机锡类固化催化剂,具有优异的表面固化性和深度固化性,而且,可提供具有优异粘合性的固化产品;上述目的可通过一种可固化组合物来实现,该组合物包括:含硅烷基团的有机聚合物(A);作为硅烷醇缩合催化剂(B)的胍化合物(B-1):一种有机聚合物 (A),其中含有能在硅氧烷键形成下交联的含硅基团;和一种胍化合物 (B-1),作为硅醇缩合催化剂 (B),由通式 (1) 表示:
R1N=C(NR12)2 (1)
(其中五个 R1s 中的一个为芳基,另外四个 R1s 分别独立地为氢原子或碳原子位于第 1 位为饱和的烃基)。