公开(公告)号：EP0810245A1

公开(公告)日：1997-12-03

申请号：EP97108506.3

申请日：1997-05-27

Applicant: ELF ATOCHEM NORTH AMERICA, INC.

Inventor： Gitlitz, Melvin H. ,  Seshadri, Sri R.

IPC: C08G18/24 ,  C08G18/80 ,  C08G63/85 ,  C08G77/08

CPC classification number: C08G18/246 ,  C08G18/80 ,  C08G63/85

Abstract: The present invention comprises a polystannoxane catalyst, a curable composition containing the catalyst and a method of using the catalyst and curing the composition.
The curable composition comprises:

(i) a blocked isocyanate;
(ii) a functional component containing reactive hydrogen;
(iii) a polystannoxane catalyst for promoting the reaction of the blocked isocyanate with the functional component.
A co-catalyst may also be employed based on Cu, Zn, Ni, Zr, Ce, Fe, Co, V, Sb and Bi and especially oxides, salts or chelates of said metals. The invention also relates to a method for curing a blocked isocyanate at a low reaction temperature which comprises combining the catalyst with the blocked isocyanate and functional component and heating to a temperature less than about 180°C to obtain a cured urethane.

Abstract translation: 本发明包括聚锡氧烷催化剂，含有催化剂的可固化组合物和使用该催化剂并固化该组合物的方法。 可固化组合物包含：（i）封端异氰酸酯; （ii）含有反应性氢的功能组分; （iii）用于促进封端异氰酸酯与官能组分反应的聚锡氧烷催化剂。 还可以使用基于Cu，Zn，Ni，Zr，Ce，Fe，Co，V，Sb和Bi，特别是所述金属的氧化物，盐或螯合物的助催化剂。 本发明还涉及一种在低反应温度下固化封端异氰酸酯的方法，该方法包括将催化剂与封端的异氰酸酯和官能组分组合并加热至低于约180℃的温度以获得固化的聚氨酯。