AR039813A1 - POLYOLEFINE COMPOSITIONS WITH IMPROVED FLUIDITY - Google Patents
POLYOLEFINE COMPOSITIONS WITH IMPROVED FLUIDITYInfo
- 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
Links
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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.
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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2003
- 2003-05-14 AR ARP030101669 patent/AR039813A1/en unknown
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