申请人:Otsuka Chemical Co., Ltd.
公开号:EP2009030A1
公开(公告)日:2008-12-31
1. A resin composition containing a copolymer which is obtained by copolymerizing 80 to 99.9 parts by weight of a vinyl monomer mainly containing a (meth)acrylic acid alkyl ester and 0.1 to 20 parts by weight of a vinyl monomer having a reactive functional group by living radical polymerization, while using, as a polymerization initiator, one of the following: (a) to (d),
(a) an organotellurium compound of the formula (1);
(b) a mixture of an organotellurium compound of the formula (1) and an azo polymerization initiator;
(c) a mixture of an organotellurium compound of the formula (1) and an organoditellurium compound of the formula (2); and
(d) a mixture of an organotellurium compound of the formula (1), an azo polymerization initiator and an organoditellurium compound of the formula (2),
and which is further characterized in that the metal content in the composition is not more than 1000 ppm
wherein R1 is C1-C8 alkyl, aryl group, substituted aryl or aromatic heterocyclic group; R2 and R3 are respectively a hydrogen atom or C1-C8 alkyl; and R4 is aryl, substituted aryl, aromatic heterocyclic group, acyl, amide, oxycarbonyl or cyano
(R1Te)2 (2)
wherein R1 is as defined above.
一种含有共聚物的树脂组合物,该共聚物是由 80 至 99.9(重量份)主要含有(甲基)丙烯酸烷基酯的乙烯基单体和 0.1 至 20(重量份)具有活性官能团的乙烯基单体通过活自由基聚合反应共聚而成,同时作为聚合引发剂使用以下其中一种:(a)至(d)、
(a) 式(1)的有机碲化合物;
(b) 式(1)的有机碲化合物与偶氮聚合引发剂的混合物;
(c) 式(1)的有机碲化合物与式(2)的有机二碲化合物的混合物;及
(d) 式(1)的有机碲化合物、偶氮聚合引发剂和式(2)的有机二碲化合物的混合物、
其进一步特征在于,组合物中的金属含量不超过 1000ppm
其中 R1 是 C1-C8 烷基、芳基、取代芳基或芳香杂环基团;R2 和 R3 分别是氢原子或 C1-C8 烷基;R4 是芳基、取代芳基、芳香杂环基团、酰基、酰胺、氧羰基或氰基。
(R1Te)2 (2)
其中 R1 如上定义。