Polymer blends comprising low molecular weight nitrile rubber

Details Polymer blends comprising low molecular weight nitrile rubber Polymer blends comprising low molecular weight nitrile rubber

C - Chemistry, Metallurgy

08

L

C08L 9/02 (2006.01) B29C 45/00 (2006.01) B29C 45/02 (2006.01) B29C 47/00 (2006.01) B29D 7/01 (2006.01) C08F 236/12 (2006.01) C08L 15/00 (2006.01) C08L 25/12 (2006.01) C08L 33/20 (2006.01) C08L 33/22 (2006.01)

Patent

CA 2409434

The present invention relates to a polymer blend comprising at least one nitrile rubber polymer having a Mooney viscosity (ML 1+4 @ 100°C) below 10 and at least one nitrile rubber polymer having a Mooney viscosity (ML 1+4 @ 100°C) above 30 wherein said polymer blend has a multi-modal molecular weight distribution, a process for preparing said polymer blend wherein at least one nitrile rubber polymer having a Mooney viscosity (ML 1 +4 @ 100°C) below and at least one nitrile rubber polymer having a Mooney viscosity (ML 1+4 @ 100°C) above 30 are mixed in a solvent and the blend is isolated from the solvent. A further subject is a process for the manufacture of a shaped article comprising the step of injection molding said polymer blend.

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