摘要:
Polypropylene composition comprising a propylene homopolymer (A) and a propylene-butene copolymer (B) or propylene-ethylene copolymer (B') wherein the polypropylene composition is β-nucleated.
摘要:
The present invention relates to a polymer composition, comprising (i) a polypropylene homopolymer, (ii) a polypropylene random copolymer, prepared by copolymerization of propylene with an olefin comonomer and having an amount of olefin comonomer units of 0.2 to 5 wt%, and (iii) an elastomeric copolymer of propylene and at least one olefin comonomer,
the polymer composition having a tensile modulus, determined according to ISO 527-2/1 B at 1 mm/min. and 23°C, of at least 1200 MPa.
摘要:
The present invention relates to nanocomposites with improved flame retardancy, comprisising a polymer matrix, a nano-filler, a wax and a compatibilizer.
摘要:
The present invention relates to a heterophasic polypropylene composition with a high melt flow rate for processability, a good stiffness and an improved compression performance. These compositions may be employed for the production of moulded articles, in particular injection moulded articles such as thin-walled plastic cups. Furthermore, the invention relates to a process for preparing the inventive polymer compositions.
摘要:
Novel polyolefin compositions comprising (A) a first propylene-ethylene random copolymer and (B) a second propylene-ethylene random copolymer, wherein the polyolefin composition has an ethylene content CM AB of 1 - 10 wt% and an MFR(AB) of 3 - 20 g/10 min with the proviso that CM AB > CM A and MFR(A)/MFR(AB) > 1.45 and where the polyolefin composition further has a randomness R of the ethylene distribution in the polymer chain of ≥ 0.945. Articles made from the novel polyolefin compositions have excellent optical properties even after subjecting them to a heat sterilisation step.
摘要:
The invention provides a heterophasic propylene polymer composition comprising the following components:
i) 60 to 90% wt, relative to the total weight of components i), ii) and iii), of a propylene polymer matrix comprising at least one propylene polymer and having an ethylene content of no more than 5% wt; ii) 5 to 30% wt, relative to the total weight of components i), ii) and iii), of an elastomer; and iii) 5 to 25% wt, relative to the total weight of components i), ii) and iii), of an ethylene copolymer plastomer having a density of not more than 910 kg/m 3 and a melt flow rate MFR 2.16 (190°C) of at least 0.5 g/10 minutes at 190°C under a weight of 2.16 kg.