| 主权项 |
1. A multiphase polymer composition comprising
a comb-type graft copolymer (A) which is obtained by polymerizing at least one (meth)acrylate monomer in the presence of at least one macromer selected from the group consisting of polymerizable ethylene-butylene, ethylene-propylene, ethylene-butylene-propylene and isobutylene macromers, and which forms a continuous acrylate phase and a discontinuous hydrocarbon phase Kw, and at least one hydrocarbon compound (B) soluble in said hydrocarbon phase Kw of said comb-type graft copolymer (A), wherein the multiphase polymer composition comprises a continuous acrylate phase having a static glass transition temperature Tg(Ac), as measured by the DSC method, and a discontinuous hydrocarbon phase Kw1 having a static glass transition temperature Tg(Kw1), as measured by the DSC method, and wherein the said static glass transition temperatures Tg(Kw1) and Tg(Ac) of the polymer composition differ by 35 to 60 kelvins. |
