AR039813A1 - POLYOLEFINE COMPOSITIONS WITH IMPROVED FLUIDITY - Google Patents

POLYOLEFINE COMPOSITIONS WITH IMPROVED FLUIDITY

Info

Publication number
AR039813A1
AR039813A1 ARP030101669A AR039813A1 AR 039813 A1 AR039813 A1 AR 039813A1 AR P030101669 A ARP030101669 A AR P030101669A AR 039813 A1 AR039813 A1 AR 039813A1
Authority
AR
Argentina
Prior art keywords
weight
xylene
olefin
solubility
room temperature
Prior art date
Application number
Other languages
Spanish (es)
Inventor
Anteo Pelliconi
Antonella Angelini
Original Assignee
Basell Poliolefine Spa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Basell Poliolefine Spa filed Critical Basell Poliolefine Spa
Priority to ARP030101669 priority Critical patent/AR039813A1/en
Publication of AR039813A1 publication Critical patent/AR039813A1/en

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  • Compositions Of Macromolecular Compounds (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)

Abstract

Una composición de poliolefina apropiada para preparar películas y láminas, que comprende: (A) entre 15% y 40% en peso de un copolímero cristalino de propileno con al menos una a-olefina de fórmula H2C = CHR1, donde R1 es H o un alquilo lineal o ramificado C2-8, con al menos 90% en peso de propileno, con una solubilidad en xileno a temperatura ambiente inferior a 15% en peso; (B) entre 60% y 85% en peso de una fracción elastomérica que comprende: (1) un copolímero de propileno con etileno, con opcionalmente entre 0,5% y 5% en peso de un dieno, con entre 20% y 35% en peso de etileno, y con una solubilidad en xileno a temperatura ambiente mayor que 45% en peso, con una viscosidad intrínseca de la fracción soluble en xileno de entre 1,0 y 3,0 dl/g; y (2) un copolímero de etileno con al menos una a-olefina de fórmula H2C = CHR2, donde R2 es un alquilo lineal o ramificado C2-8, con opcionalmente entre 0,5% y 5% en peso de un dieno, con entre 15% y 40% en peso de a-olefina, y con una solubilidad en xileno a temperatura ambiente mayor que 35% en peso, con una viscosidad intrínseca de la fracción soluble en xileno de entre 1,0 y 3,0 dl/g; donde la relación en peso (1)/(2) está comprendida entre 1:5 y 5:1. La composición de poliolefina de la presente, preferentemente preparada por polimerización secuencial en al menos tres etapas, tiene un módulo de flexión inferior a 130 MPa, una dureza Shore D inferior a 40, y un MFR l 1,5 g/10 min.A polyolefin composition suitable for preparing films and sheets, comprising: (A) between 15% and 40% by weight of a crystalline propylene copolymer with at least one a-olefin of formula H2C = CHR1, where R1 is H or a C2-8 linear or branched alkyl, with at least 90% by weight of propylene, with a solubility in xylene at room temperature of less than 15% by weight; (B) between 60% and 85% by weight of an elastomeric fraction comprising: (1) a copolymer of propylene with ethylene, with optionally between 0.5% and 5% by weight of a diene, with between 20% and 35 % by weight of ethylene, and with a solubility in xylene at room temperature greater than 45% by weight, with an intrinsic viscosity of the fraction soluble in xylene between 1.0 and 3.0 dl / g; and (2) an ethylene copolymer with at least one a-olefin of formula H2C = CHR2, where R2 is a C2-8 linear or branched alkyl, optionally with 0.5% to 5% by weight of a diene, with between 15% and 40% by weight of α-olefin, and with a solubility in xylene at room temperature greater than 35% by weight, with an intrinsic viscosity of the fraction soluble in xylene of between 1.0 and 3.0 dl / g; where the weight ratio (1) / (2) is between 1: 5 and 5: 1. The polyolefin composition of the present, preferably prepared by sequential polymerization in at least three stages, has a flexural modulus of less than 130 MPa, a Shore D hardness of less than 40, and an MFR of 1.5 g / 10 min.

ARP030101669 2003-05-14 2003-05-14 POLYOLEFINE COMPOSITIONS WITH IMPROVED FLUIDITY AR039813A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ARP030101669 AR039813A1 (en) 2003-05-14 2003-05-14 POLYOLEFINE COMPOSITIONS WITH IMPROVED FLUIDITY

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ARP030101669 AR039813A1 (en) 2003-05-14 2003-05-14 POLYOLEFINE COMPOSITIONS WITH IMPROVED FLUIDITY

Publications (1)

Publication Number Publication Date
AR039813A1 true AR039813A1 (en) 2005-03-02

Family

ID=42777332

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP030101669 AR039813A1 (en) 2003-05-14 2003-05-14 POLYOLEFINE COMPOSITIONS WITH IMPROVED FLUIDITY

Country Status (1)

Country Link
AR (1) AR039813A1 (en)

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