Abstract:
A propylene/ethylene/1-hexene terpolymer containing from 1.0 wt % to 2.5 wt %, of ethylene derived units and from 2.0 wt % to 4.0 wt % of 1-hexene derived units, the sum of the amounts of propylene, ethylene and 1-.hexene derived units being 100, having the following features: a) the amount (Wt %) of 1-hexene (C6) and the amount (Wt %) of ethylene (C2) fulfill the following relation: C2
Abstract:
A polyolefin composition comprising (percent by weight): A) from 7% to 19%; of a copolymer of propylene and 1-hexene wherein said copolymer contains less than 1% of recurring units derived from hexene-1; B) from 81% to 93% of a heterophasic polypropylene composition comprising: B1) from 86% to 95% of a propylene homopolymer, said propylene polymer being insoluble in xylene at room temperature in an amount over 85% having a polydispersity Index ranging from 3 to 10; and a Melt Index from 0.5 to 10 dg/min; B2) from 5% to 14% of a copolymer of ethylene and propylene having an ethylene derived units content ranging from 50% to 65%; said polymeric composition having a Melt Index from 0.05 to 10 dg/min.
Abstract:
A heterophasic polypropylene composition comprising (percent by weight referred to the sum of components A) and B)): A) from 80% to 97% of a random copolymer of propylene containing from 0.1 to 4% of 1-hexene derived units; B) from 3-20% of a copolymer of propylene and ethylene having a content of ethylene derived units ranging from 50% to 55% extremes excluded; wherein the heterophasic polypropylene composition is endowed with a Melt Flow Rate: measured according to ISO 1133 (230° C., 5 Kg) ranging from 0.5 to 5 g/10 min; and an intrinsic viscosity (IV) of the fraction soluble in xylene at room temperature ranging from 2.5 to 5.5;
Abstract:
A polypropylene composition for injection-moulded drainage systems comprising 78-84 wt % of a crystalline propylene polymer, 8 to less than 13 wt % of an elastomeric copolymer and 8 to less than 13 wt % of polyethylene. The said composition exhibits a flexural modulus value higher than 1400 MPa, a melt flow rate (MFR), determined according to ISO method 1133 (230° C. and 2.16 kg), of from 1.5 to 5.0 g/10 min, and a value of Izod impact resistance at 0° C. of more than 6 kJ/m2 according to ISO method 180/1 A.
Abstract translation:一种用于注射成型的排水系统的聚丙烯组合物,其包含78-84重量%的结晶丙烯聚合物,8至小于13重量%的弹性体共聚物和8至小于13重量%的聚乙烯。 所述组合物显示高于1400MPa的挠曲模量值,根据ISO方法1133(230℃和2.16kg)测定的熔体流动速率(MFR)为1.5至5.0g / 10min,值为 根据ISO方法180/1 A,0℃下的Izod抗冲击强度大于6kJ / m 2。
Abstract:
Mono-oriented film having a shrink rate at 100° C. of at least 15% and at least one layer of which comprises a propylene copolymer with ethylene and optionally other olefins of formula CH2═CHR in which R is an alkyl group containing from 2 to 10 carbon atoms, having at least 5.5% wt of ethylene, a melt flow rate according to ISO 1133 (230° C., 2.16 Kg) of less than 10, and a fraction of polymer soluble in xylene at 25° C. ranging from 14 to 30% weight based on the total weight of said copolymer. The said films are particularly suited for the manufacturing of shrink labels.
Abstract:
Random propylene/ethylene copolymers are provided characterized by Ethylene content in the range of 4.5-7% wt; Mw/Mn (via GPC) in the range 3.5-5.5; Mz/Mw (via GPC) lower than 4; absence of 2-1 regioinversion, and Melting Temperature (Tm) (non-nucleated grade) lower than 143° C. The said copolymers show an excellent balance of impact and optical properties which is retained even after visbreaking.
Abstract:
A process for the preparation of a propylene copolymer composition having a Flexural modulus lower than 500 MPa, a total ethylene content higher than 9% and a Xylene soluble fraction at room temperature higher than 20% comprising at least one polymerization step carried out in a gas-phase polymerization reactor comprising at least two interconnected polymerization zones said process being characterized by the fact that at least 30% by weight of said xylene soluble fraction is produced in the polymerization step carried out in a gas-phase polymerization reactor comprising at least two interconnected polymerization zones.
Abstract:
Random propylene/ethylene copolymers are provided characterized by Ethylene content in the range of 4.5-7% wt; Mw/Mn (via GPC) in the range 3.5-5.5; Mz/Mw (via GPC) lower than 4; absence of 2-1 regioinversion, and Melting Temperature (Tm) (non-nucleated grade) lower than 143° C. The said copolymers show an excellent balance of impact and optical properties which is retained even after visbreaking.
Abstract:
Plastic tanks comprising a propylene-hexene-1 copolymer having a xylene soluble fraction lower than 5% wt with respect to the total weight of the copolymer and satisfying the following relation: A · T m B > 70 wherein A is the MFR measured according to the method ISO 1133 (230° C., 5 kg) expressed in g/10 min, Tm is the melting temperature measured by DSC expressed in ° C. and B is the hexene-1 content expressed in percentage by weight with respect to total weight of the copolymer.