| 摘要 |
Polymers of propene consist of from 50 to 99.9% by weight of an isotactic propene copolymer (A') and from 0.1 to 50% by weight of a propene homopolymer or a propene copolymer (B'), wherea) the propene copolymer (A') consists of from 80 to 99.9 mol % of propene and from 0.1 to 20 mol % of ethene and/or a C4-C12-1-olefin, at least 80% of all propene diads are isotactic meso diads, the propene copolymer (A') has a proportion (XS) of material soluble in xylene at 20° C. which satisfies the inequality (1) the tensile modulus of elasticity (E) of the propene copolymer (A') in MPa, determined in accordance with ISO 527, obeys the inequality (2) where in both inequalities (1) and (2) TM is the melting point in ° C., andb) the propene homopolymer or the propene copolymer (B') consists of from 80 to 100 mol % of propene and from 0 to 20 mol % of ethene and/or a C4-C12-1-olefin, at least 55% of all regioregular propene diads are isotactic meso diads, an enthalpy of fusion DELTAHm of less than 50 J/g is observed in the DSC measurement of (B') and no crystalline ex sequences are detectable.
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