| 摘要 |
This invention relates to a propylene polymer comprising a component having a crystallinity of 10% or less and a component having a crystallinity of 20% or more, said propylene polymer having: a) a melting point of X ° C. or more where X=-0.0038(Tp)2+0.36(Tp)+150, where Tp is the temperature of polymerization in ° C.; b) an Mw of 10,000 g/mol or more; c) a heat of fusion of from 1-70 J/g; d) Stereodefects per 10,000 monomer units of Y or less where Y=2.35(Tp)-100 (where Tp is the temperature of polymerization in ° C.) for the portion of the blend that is insoluble in hexane at 23° C.; e) a dot T-Peel on Kraft paper of 1 N or more; and f) a branching factor of 0.98 or less, where the branching factor is the ratio of g' measured at Mz to g' measured at Mw, and process to produce such polymers.
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