Improved process for obtaining elastomeric masters...

Details Improved process for obtaining elastomeric masters... Improved process for obtaining elastomeric masters...

C - Chemistry, Metallurgy

08

L

C08L 23/16 (2006.01) C08J 3/22 (2006.01) C08K 3/34 (2006.01) C08L 23/08 (2006.01)

Patent

CA 2527140

The present invention relates to a process for the single-step preparation of masters based on EP(D)M and reinforcing inorganic fillers, said process being characterized in that it is effected by mixing, under high shear conditions, a polymeric blend comprising: a) one or more EP(D)M polymers, optionally mixed with poly-alpha-olefins, preferably with ethylene crystal copolymers; b) one or more coupling agents, preferably selected from vinyl silanes; c) one or more hydroperoxides; d) reinforcing inorganic fillers; at a temperature ranging from 75°C to 260°C, preferably from 240°C to 210°C.

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