An organotin-containing composition forthe stabitization of polymers or copolymers of vinyl chloride in which there is incorporated a stabilizing amount of an organotin compound containing at least two tin atoms corresponding to the formula
wherein
A and B represent tin-containing organic groups which may be the same or different and both correspond to the formula
wherein
R1 and R2 may the same or different and may represent an alkyl group having 1 to 18 carbon atoms, the group
an
group or the group
wherein
D corresponds to the same formula as A and B,
provided that in the case where in the group A R1 and R2 both represent an alkyl group or the group
R1 in the group B and/or D represents an alkyl group and R2 the group
or R, and/or R2 in the group B and/or D represent the group
wherein R6 represents an alkyl group having 1 tot 18 carbon atoms which may be substituted or not with an alkoxy group having 1 to 18 carbon atoms, a polyoxyalkylene group consisting of oxyalkylene groups having 1 to 4 carbon atoms and of which the end group is an alkyl group or a hydrogen atom, cycloalkyl group having 3 to 6 carbon atoms, an alkenyl group having 2 to 4 carbon atoms or a phenyl group;
R3, R4, R7 and R. may be the same or different and have the meaning of a hydrogen atom, an alkyl group having 1 to 18 carbon atoms or an aryl group;
R5 represents a hydrogen atom, an alkyl group having 1 to 18 carbon atoms, a cycloalkyl group having 3 to 6 carbon atoms or a substituted or unsubstituted aryl group;
R. represents a hydrogen atom or a methyl group;
X has the meaning of an O or S atom;
Y represents a divalent substituted or unsubstituted aliphatic, cycloaliphatic or aromatic group having not more than 20 carbon atoms; and m and q represent an integer from 1 to 6, n and r an integer from 1 to 3 and p an integer from 1 to 12.
一种用于
氯乙烯聚合物或共聚物稳定化的含
有机锡组合物,其中加入了稳定量的
有机锡化合物,该化合物至少含有两个
锡原子,其式如下
其中
A 和 B 代表含
锡的有机基团,它们可以相同或不同,且都符合下式
其中
R1 和 R2 可以相同或不同,并可代表具有 1 至 18 个
碳原子的烷基,该基团
基团
基团或
其中
D 与 A 和 B 的式子相同、
如果在 A 组中,R1 和 R2 均代表烷基或基团
在 B 组和/或 D 组中,R1 代表烷基,R2 代表基团
或 B 组和/或 D 组中的 R 和/或 R2 代表以下基团
其中 R6 代表具有 1 至 18 个
碳原子的烷基,该烷基可被具有 1 至 18 个
碳原子的烷
氧基取代或未被烷
氧基取代;R6 代表由具有 1 至 4 个
碳原子且末端基团为烷基或
氢原子的
氧亚烷基组成的聚
氧亚烷基;R6 代表具有 3 至 6 个
碳原子的
环烷基;R6 代表具有 2 至 4 个
碳原子的
烯基或
苯基;
R3、R4、R7 和 R. 可以相同或不同,其含义为
氢原子、具有 1 至 18 个
碳原子的烷基或芳基;
R5 代表
氢原子、具有 1 至 18 个
碳原子的烷基、具有 3 至 6 个
碳原子的
环烷基或取代或未取代的芳基;
R. 代表
氢原子或
甲基;
X 具有 O 原子或 S 原子的含义;
Y 代表二价取代或未取代的
脂肪族、环脂族或芳香族基团,其
碳原子数不超过 20 个;以及 m 和 q 代表 1 至 6 的整数,n 和 r 代表 1 至 3 的整数,p 代表 1 至 12 的整数。