申请人:Wang Lin
公开号:US20050043496A1
公开(公告)日:2005-02-24
Transition metal complexes of selected monoanionic phosphine ligands, which also contain a selected Group 15 or 16 (IUPAC) element and which are coordinated to a Group 3 to 11 (IUPAC) transition metal or a lanthanide metal, are polymerization catalysts for the (co)polymerization of olefins such as ethylene and α-olefins, and the copolymerization of such olefins with polar group-containing olefins. These and other nickel complexes of neutral and monoanionic bidentate ligands copolymerize ethylene and polar comonomers, especially acrylates, at relatively high ethylene pressures and surprisingly high temperatures, and give good incorporation of the polar comonomers and good polymer productivity. These copolymers are often unique structures, which are described.
选定的单阴离子膦配体的过渡金属配合物,其中还含有选定的第15或16组(IUPAC)元素,并与第3至11组(IUPAC)的过渡金属或镧系金属配位,可用于烯烃(共)聚合物的催化剂,例如乙烯和α-烯烃,以及这些烯烃与含极性基团的烯烃的共聚合物。这些以及其他中性和单阴离子双齿配体的镍配合物可以在相对较高的乙烯压力和惊人的高温下共聚乙烯和极性共聚单体,特别是丙烯酸酯,并且可以良好地包含极性共聚单体和良好的聚合产率。这些共聚物通常是独特的结构,将其描述。