Composition comprising heterophasic propylene copolymer
The invention relates to a composition comprising a heterophasic propylene copolymer and a C10-C30 aliphatic carboxylic acid amide, wherein the heterophasic propylene copolymer consists of a propylene-based matrix consisting of a propylene homopolymer and/or a propylene-α-olefin copolymer consisting of at least 70 wt % of propylene and at most 30 wt % of α-olefin and wherein the propylene-based matrix is present in an amount of 76 to 90 wt % based on the total heterophasic propylene copolymer and a dispersed ethylene-α-olefin copolymer, wherein the dispersed ethylene-α-olefin copolymer is present in an amount of 24 to 10 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 is 30 to 38 wt %.
1. A composition comprising (A) a heterophasic propylene copolymer and (B) a C10-C30 aliphatic carboxylic acid amide, wherein 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-α-olefin copolymer consisting of at least 70 wt % of propylene and at most 30 wt % of α-olefin, based on the total weight of the propylene-based matrix, and
wherein the propylene-based matrix is present in an amount of 76 to 90 wt % based on the total heterophasic propylene copolymer, and
(b) a dispersed ethylene-α-olefin copolymer,
wherein the dispersed ethylene-α-olefin copolymer is present in an amount of 24 to 10 wt % based on the total heterophasic propylene copolymer,
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 is 30 to 38 wt %,
wherein the propylene-based matrix has a melt flow index MFI PP as determined according to ISO1133 at 230° C. and 2.16 kg and the dispersed ethylene-α-olefin copolymer has a melt flow index MFI EPR as determined according to ISO1133 at 230° C. and 2.16 kg, wherein the ratio of MFI PP /MFI EPR is 0.5-15, and
wherein the heterophasic propylene copolymer has a MFI of 10 to 100 dg/min as determined according to ISO1133 at 230° C. and 2.16 kg.
2. The composition according to claim 1 , wherein (B) is an unsaturated C10-C30 aliphatic carboxylic acid amide.
3. The composition according to claim 1 , wherein the amount of (B) in the composition is 0.01-1 wt % based on the total weight of the composition.
4. The composition according to claim 1 , wherein the propylene-based matrix consists of a propylene homopolymer.
5. The composition according to claim 1 , wherein the α-olefin in the ethylene-α-olefin copolymer is chosen from the group of α-olefins having 3 to 8 carbon atoms and any mixtures thereof.
6. The composition according to claim 1 , wherein MFI PP is 1.5 to 10 dg/min.
7. The composition according to claim 1 , wherein MFI EPR is 1 to 3 dg/min.
8. The composition according to claim 1 , wherein the amount of ethylene in the heterophasic propylene copolymer is in the range of 3-8 wt % based on the heterophasic propylene copolymer.
9. The composition according to claim 1 , wherein the composition comprises at most 4 wt % of glass materials.
10. The composition according to claim 1 , wherein the composition comprises a nucleating agent.
11. A process for the preparation of the composition according to claim 1 , comprising melt mixing (A) and (B).
12. An article comprising the composition of claim 1 .
13. The article according to claim 12 , wherein the article is a consumer appliance.
14. The article according to claim 12 , wherein the article is made by injection moulding.
15. The composition according to claim 2 , the unsaturated C10-C30 aliphatic carboxylic acid amide is selected from the group consisting of erucamide and oleamide.
16. The composition according to claim 5 , wherein the α-olefin in the ethylene-α-olefin copolymer is propylene.
17. The composition according to claim 1 , wherein the amount of ethylene in the heterophasic propylene copolymer is in the range of 3-7 wt % based on the heterophasic propylene copolymer.
18. The composition according to claim 1 , wherein the composition comprises a nucleating composition comprising a first nucleating agent, which comprises a cyclic dicarboxylate salt compound; and a second nucleating agent, which comprises talc, wherein the cyclic dicarboxylate salt compound has the formula (I):
19. The composition according to claim 13 , wherein the consumer appliance is selected from the group consisting of household appliances, electrical appliances, and garden power tools.
20. A composition comprising (A) a heterophasic propylene copolymer, (B) 0.01-1 wt % of a C10-C30 aliphatic carboxylic acid amide based on the total weight of the composition, and (C) a nucleating agent, wherein 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-α-olefin copolymer consisting of at least 70 wt % of propylene and at most 30 wt % of α-olefin, based on the total weight of the propylene-based matrix, and
wherein the propylene-based matrix is present in an amount of 76 to 90 wt % based on the total heterophasic propylene copolymer, and
(b) a dispersed ethylene-α-olefin copolymer,
wherein the dispersed ethylene-α-olefin copolymer is present in an amount of 24 to 10 wt % based on the total heterophasic propylene copolymer,
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 is 30 to 38 wt %,
wherein the propylene-based matrix has a melt flow index MFI PP as determined according to ISO1133 at 230° C. and 2.16 kg is 1.5 to 10 dg/min and the dispersed ethylene-α-olefin copolymer has a melt flow index MFI EPR as determined according to ISO1133 at 230° C. and 2.16 kg is 1 to 3 dg/min, wherein the ratio of MFI PP /MFI EPR is 0.5-15, and
wherein the heterophasic propylene copolymer has a MFI of 10 to 100 dg/min as determined according to ISO1133 at 230° C. and 2.16 kg.