申请人:——
公开号:US20030116750A1
公开(公告)日:2003-06-26
The present invention provides a phthalate-free plasticizer for polymer resins. The phthalate-free plasticizer according to the invention includes a mixture of different triesters of glycerin, at least one of which meets the formula:
CH
2
(OOR
1
)CH(OOR
2
)CH
2
(OOR
3
)
wherein at least two of R
1
, R
2
, and R
3
are different alkyl or aryl groups. Phthalate-free plasticizers according to the invention can be made by esterifying glycerin with a mixture of acids in the presence of a catalyst. Preferably, the mixture of acids includes at least two selected from the group consisting of alkyl acids and aryl acids, with each acid in the mixture containing up to about 11 carbon atoms, and more preferably from about 4 to about 9 carbon atoms each. The plasticizer according to the invention can be used to modify the properties of a wide variety of polymers including vinyl polymers, rubbers, polyurethanes, and acrylics, and has superb thermostability and low volatility.
本发明提供了一种用于聚合物树脂的不含邻苯二甲酸盐的增塑剂。根据本发明,不含邻苯二甲酸盐的增塑剂包括不同甘油三酯的混合物,其中至少有一种符合以下式子:
CH
2
(OOR
1
) CH(OOR
2
) CH
2
(OOR
3
)
其中至少两个 R
1
, R
2
和 R
3
是不同的烷基或芳基。根据本发明,不含邻苯二甲酸酯的增塑剂可通过在催化剂存在下将甘油与酸的混合物酯化而制成。酸混合物最好包括至少两种从烷基酸和芳基酸组成的组中选出的酸,混合物中的每种酸最多含有约 11 个碳原子,更优选的是每种酸含有约 4 至约 9 个碳原子。本发明的增塑剂可用于改变包括乙烯基聚合物、橡胶、聚氨酯和丙烯酸树脂在内的多种聚合物的性能,并具有极佳的热稳定性和低挥发性。