Abstract:
The invention relates to a heterophasic propylene copolymer composition comprising a heterophasic propylene copolymer (A), optionally an ethylene-unit containing polymer (B) and an inorganic filler (C), wherein the heterophasic propylene copolymer (A) consists of a) a propylene-based matrix wherein the propylene-based matrix consists of a propylene homopolymer and/or a propylene copolymer consisting of at least 90 wt % of propylene units and at most 10 wt % of comonomer units selected from ethylene monomer units and α-olefin monomer units having 4 to 10 carbon atoms wherein the propylene-based matrix is present in an amount from 87.0 to 92.0 wt % based on the heterophasic propylene copolymer and b) a dispersed ethylene α-olefin copolymer, wherein the dispersed α-olefin copolymer is present in an amount from 8.0 to 13.0 wt % based on the heterophasic propylene copolymer and wherein the sum of the weight of the propylene-based matrix and the weight of the dispersed ethylene-α-olefin copolymer is 100 wt % based on the heterophasic propylene copolymer, wherein C) the inorganic filler is present in an amount of 0.10 to 4.9 wt % based on the composition wherein the melt flow index of the composition is in the range from 5.0 to 9.0 dg/min as determined according to ISO 1133:2011 at 230° C. and 2.16 kg and wherein the total amount of ethylene units in the composition are in the range from 5.7 to 10.0 wt % based on the composition.
Abstract:
A polypropylene composition includes at least 85 wt % a heterophasic propylene copolymer (A), 1.0 to 7.0 wt % a low density polyethylene (B), and 0.001 to 1.5 wt % an α-nucleating agent (C), wherein the heterophasic propylene copolymer (A) includes 75 to 90 wt % (a) a propylene homopolymer matrix and 10 to 25 wt % (b) an and wherein the ethylene-propylene copolymer comprises 43 to 57 wt % of units derived from ethylene and wherein the low density polyethylene (B) has a melt flow rate (MFRLDPE, 230) using 2.16 kg at 230° C. and wherein the low density polyethylene (B) has a density of 915 to 932 kg/m3, wherein the polypropylene composition has a total melt flow rate (MFRtotal) of 30 to 150 dg/min, wherein the total melt flow rate is determined using ISO1133:2011 using 2.16 kg at 230° C., wherein the polypropylene composition satisfies the following inequation: 0.9
Abstract:
The invention relates to a composition comprising (A) a heterophasic propylene copolymer and (B) an ethylene copolymer of ethylene and an alpha-olefin comonomer units having 4 to 10 carbon atoms, wherein (A) the heterophasic propylene copolymer consists of (a) a propylene-based matrix, wherein the propylene-based matrix consists of a propylene homopolymer and/or a propylene copolymer consisting of at least 70 wt % of propylene monomer units and at most 30 wt % of ethylene and/or a-olefin monomer units, based on the total weight of the propylene-based matrix and wherein the propylene-based matrix is present in an amount of 80 to 95 wt % based on the total heterophasic propylene copolymer and (b) a dispersed ethylene-a-olefin copolymer, wherein the dispersed O ethylene-a-olefin copolymer is present in an amount of 5 to 20 wt %, preferably 8 to 15 wt %, based on the total heterophasic propylene copolymer and wherein the sum of the total amount of propylene-based matrix and total amount of the dispersed ethylene-α-olefin copolymer in the heterophasic propylene copolymer is 100 wt %, wherein the amount of ethylene in the ethylene-α-olefin copolymer of the heterophasic propylene copolymer is 10 to 45 wt %, preferably 30 to 38 wt %, and wherein (B) the ethylene copolymer has a density of to 0.850 to 0.910 g/cm3 and a melt flow index of 10.0 to 50.0 dg/min, preferably 30.0 dg/min, measured in accordance with ASTM D1238 (2.16 kg/190 ° C.), wherein the composition comprises less than 5 wt % of talc with respect to the total composition.
Abstract:
The invention relates to a nucleating composition comprising: (a) a first nucleating agent, which comprises a cyclic dicarboxylate salt compound; and (b) a second nucleating agent, which comprises talc, wherein the cyclic dicarboxylate salt compound has the formula (I):
Abstract:
The invention relates to a nucleating composition comprising: (a) a first nucleating agent, which comprises a cyclic dicarboxylate salt compound; and (b) a second nucleating agent, which comprises talc, wherein the cyclic dicarboxylate salt compound has the formula (I).
Abstract:
The invention relates to a nucleating composition comprising: (a) a first nucleating agent, which comprises a cyclic dicarboxylate salt compound; and (b) a second nucleating agent, which comprises talc, wherein the cyclic dicarboxylate salt compound has the formula (I):