Propyleenikopolymeerikoostumuksia hyvän läpinäkyvyyden ja parantuneen iskunkestävyyden omaavia tuotteita varten

Propylene polymer compositions having good transparency and improved impact resistance at low temperature comprising: a) 70 to 98% by weight crystalline copolymer of propylene with ethylene and/or with an alpha olefin of the formula H2C=CHR where R is a C2-8 linear or branched alkyl radical and b) 2...

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Hauptverfasser: CECCHIN,GIULIANO, GUGLIELMI,FLORIANO
Format: Patent
Sprache:fin ; swe
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Zusammenfassung:Propylene polymer compositions having good transparency and improved impact resistance at low temperature comprising: a) 70 to 98% by weight crystalline copolymer of propylene with ethylene and/or with an alpha olefin of the formula H2C=CHR where R is a C2-8 linear or branched alkyl radical and b) 2 to 30% by weight of an elastomeric propylene-ethylene copolymer. The portion of said copolymer b) soluble in xylene at room temperature has an intrinsic viscosity (I.V. 2) which satisfies the following relation: 0.2