申请人:PPG INDUSTRIES, INC.
公开号:EP0144810A2
公开(公告)日:1985-06-19
Curable compositions with improved humidity resistance are composed of an active hydrogen-containing resin which is essentially free of glycidyl groups, a curing agent present externally and / or internally as a part of the active hydrogen-containing resin, and a catalytic amount of a sulfonic acid having a molecular weight of less than 500 and represented by the following formula:
wherein:
Z is a radical independently selected from C1 to C20 alkyl, C3 to C20 cycloalkyl, C6 to C18 aryl, halogen, alkoxy, hydroxyl, and aryloxy;
R is independently selected from hydrogen, C1 to C20 alkyl, C3 to C20 cycloalkyl and C6 to C18 aryl;
y is an integer from 0 to 4;
w is an integer from 0 to 2;
x is an integer from 1 to 3, with the proviso that when w is 0, y is an integer from 1 to 4 and x is an integer from 2 to 3 and when y is 0, w is an integer from 1 to 2 and x is an integer from 1 to 2.
具有更好防潮性能的可固化组合物由基本上不含缩水甘油基的活性含氢树脂、作为活性含氢树脂的一部分存在于外部和/或内部的固化剂、以及催化量的分子量小于 500 且由下式表示的磺酸组成:
其中
Z 是独立选自 C1 至 C20 烷基、C3 至 C20 环烷基、C6 至 C18 芳基、卤素、烷氧基、羟基和芳氧基的自由基;
R 独立选自氢、C1 至 C20 烷基、C3 至 C20 环烷基和 C6 至 C18 芳基;
y 是 0 至 4 的整数;
w 是 0 至 2 的整数;
x 是 1 至 3 的整数,但条件是当 w 为 0 时,y 是 1 至 4 的整数,x 是 2 至 3 的整数;当 y 为 0 时,w 是 1 至 2 的整数,x 是 1 至 2 的整数。