申请人:ROHM AND HAAS COMPANY
公开号:EP0882748A2
公开(公告)日:1998-12-09
A combination of chemicals suitable for extending pot life and shortening cure time of a pot mix of a thermosetting composition is disclosed. The combination of chemicals includes a catalyst, such as, dibutyl tin dilaurate; carboxylic or sulfonic acid; and an extender compound, such as 2,4 pentanedione. The combination is generally included in a polymeric component of the urethane composition. The extended pot life provides the user with longer open time during which to efficiently apply a coating of the pot mix over a wide variety of substrate surfaces while still producing coatings that cure quickly upon application.
本发明公开了一种适用于延长热固性组合物的罐装寿命和缩短罐装混合物固化时间的化学品组合。化学品组合包括催化剂,如二月桂酸二丁基锡;羧酸或磺酸;以及扩展剂化合物,如 2,4-戊二酮。这种组合通常包含在聚氨酯组合物的聚合物成分中。延长的罐装寿命为用户提供了更长的开放时间,使其可以在各种基材表面上有效地涂抹罐装混合涂料,同时还能生产出在涂抹后迅速固化的涂料。