申请人:MORTON INTERNATIONAL, INC.
公开号:EP0866090A1
公开(公告)日:1998-09-23
The density of rigid foamed articles made by the thermal decomposition of a blowing agent in a vinyl chloride polymer is reduced by the use of an organotin halide in combination with a mercaptocarboxylic acid ester or a sulfide of such ester or a mixture of the ester and the sulfide to activate the blowing agent.
通过使用
有机锡卤化物与
硫醇
羧酸酯或
硫醇
羧酸酯的
硫化物或
硫醇
羧酸酯与
硫化物的混合物来活化发泡剂,可降低通过发泡剂在
氯乙烯聚合物中的热分解而制成的硬质发泡物品的密度。