申请人:3M Innovative Properties Company
公开号:EP2740750A1
公开(公告)日:2014-06-11
The present disclosure generally relates to curable precursor compositions for a polyurethane adhesive. In one exemplary embodiment, the composition includes (a) an isocyanate component comprising one or more isocyanates and (b) an isocyanate-reactive component comprising
(bi) one or more triols selected from polyether triols, polyester triols, polyether-polyester triols and combinations thereof;
(bii) one or more tetrols, selected from polyether polyols, polyester polyols, polyether-polyester polyols;
and wherein the composition further comprises a catalyst system capable of catalyzing the formation of polyurethanes wherein the curing catalyst system contains a combination of bismuth, zinc and zirconium salts.
Also provided are polyurethane-based adhesives, methods of bonding components with the adhesives and articles containing components bonded by the adhesives.
本公开一般涉及用于聚氨酯胶粘剂的可固化前体组合物。在一个示例性实施方案中,该组合物包括 (a) 异氰酸酯组分,其中包含一种或多种异氰酸酯;以及 (b) 异氰酸酯反应组分,其中包含
(bi) 一种或多种选自聚醚多元醇、聚酯多元醇、聚醚-聚酯多元醇及其组合的三元 醇;
(bii) 一种或多种选自聚醚多元醇、聚酯多元醇、聚醚-聚酯多元醇的四元 醇;
其中,该组合物进一步包含能够催化聚氨酯形成的催化剂体系,其中固化催化剂体系包含铋盐、锌盐和锆盐的组合。
此外,还提供了聚氨酯基粘合剂、用粘合剂粘合部件的方法以及含有用粘合剂粘合的部件的物品。