申请人:DSM N.V.
公开号:EP0856542A1
公开(公告)日:1998-08-05
Polyolefin polymer in the form of a comb, star, nanogel or structural combinations thereof comprising a plurality of polyolefin arms, each independently selected from the group consisting of homo- and copolymers of substituted and unsubstituted 1-alkenes, coupled to a polymeric backbone, said backbone having repeating units containing a group selected from the group consisting of aliphatic groups, aromatic groups, heteroatom-containing groups and combinations thereof, the polyolefin polymer having a weight average molecular weight (Mw) of at least 250*103 g/mol and less than 800*103 g/mol, the polyolefin arm, before coupling, having a molecular weight (Mw) of at least 20*103 g/mol, the ratio between the molecular weight (Mw) of the polyolefin polymer and the molecular weight of the polyolefin arm, before coupling, (Mw, polymer/Mw, arm) being higher than 2 and the molecular weight distribution of the polyolefin arm, before coupling, being at least 2 and at most 20.
梳状、星形、纳米凝胶或其结构组合形式的聚烯烃聚合物,包括多个聚烯烃臂,每个聚烯烃臂均独立地选自取代和未取代的 1-烯的均聚物和共聚物组成的组,与聚合物骨架偶联,所述骨架具有重复单元,重复单元含有选自脂肪族基团、芳香族基团、含杂原子基团及其组合组成的组的基团、聚烯烃聚合物的重量平均分子量(Mw)至少为 250*103 g/mol,小于 800*103 g/mol,偶联前聚烯烃臂的分子量(Mw)至少为 20*103 g/mol,聚烯烃聚合物的分子量(Mw)与偶联前聚烯烃臂的分子量之比(Mw,聚合物/Mw,臂)大于 2,偶联前聚烯烃臂的分子量分布至少为 2,最多为 20。