Polydimethylsiloxane-containing polymer blends

Details Polydimethylsiloxane-containing polymer blends Polydimethylsiloxane-containing polymer blends

C - Chemistry, Metallurgy

08

L

C08L 23/08 (2006.01) C08J 3/18 (2006.01) C08J 3/20 (2006.01) C08L 23/06 (2006.01) C08L 23/16 (2006.01) C08L 47/00 (2006.01) C08L 51/06 (2006.01) C08L 83/04 (2006.01)

Patent

CA 2266103

The invention relates to a polymer composition comprising: (A) from 30 percent to 99.9 percent based on the total weight of the composition, of at least one ethylene interpolymer; the total ethylene interpolymer having a density of from 0.85 g/cm3 to less than 0.9 g/cm3, wherein the at least one ethylene interpolymer is selected from the group consisting of homogeneously branched linear ethylene/.alpha.-olefin interpolymer, homogeneously branched substantially linear ethylene/.alpha.-olefin interpolymer and ethylene/alpha-olefin/diene terpolymers, (B) at least one polydimethylsiloxane (PDMS) having a viscosity at 25°C of greater than 100,000 centistokes (0.1 m2/second), wherein said PDMS is present in an amount of 0.1 to 10 weight percent based on total weight of the polymer composition; and (C) optionally, one or more of an additive and a plasticizer. The composition of the invention displays good abrasion resistance without sacrificing coefficient of friction.

Compositions contenant des interpolymères d'éthylène tels qu'un interpolymère d'éthylène linéaire ou sensiblement linéaire et du polydiméthylsiloxane. Les compositions de cette invention présentent une bonne résistance à l'abrasion et conservent par ailleurs leur coefficient de frottement.

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