申请人:MORTON INTERNATIONAL, INC.
公开号:EP0850987A1
公开(公告)日:1998-07-01
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 mercaptoalkylcarboxylate, alone, or in combination with an organotin halide or carboxylate which activate the blowing agent. Sulfides made from said organotin mercaptoalkylcarboxylate are also superior activators of the blowing agent.
单独使用有机锡巯基烷基羧酸盐,或与有机锡卤化物或羧酸盐结合使用,可激活发泡剂,从而降低通过发泡剂在氯乙烯聚合物中的热分解制成的硬质发泡物品的密度。由上述有机锡巯基烷基羧酸酯制成的硫化物也是发泡剂的优质活化剂。