Silica-containing rubber composition

Details Silica-containing rubber composition Silica-containing rubber composition

C - Chemistry, Metallurgy

08

L

C08L 9/06 (2006.01) C08J 3/22 (2006.01) C08K 9/06 (2006.01)

Patent

CA 2216062

The invention provides an elastomeric composition which comprises 1) a vinyl solution SBR/silica-containing masterbatch, which contains preferably from 40 to 120 parts by weight of silica per 100 parts by weight of polymer, and 2) a high cis polybutadiene/silica-containing masterbatch, which contains preferably from 40 to 120 parts by weight of silica per 100 parts by weight of polymer wherein silica has been hydrophobicized.

Cette invention concerne une composition élastomère comprenant : 1) un mélange mère contenant une solution vinylique SBR et de la silice, qui renferme, de préférence, de 40 à 120 parties, en poids, de silice par 100 parties, en poids, de polymère; et 2) un mélange mère contenant un polybutadiène à haute teneur en motif cis et de la silice, qui renferme, de préférence, de 40 à 120 parties, en poids, de silice par 100 parties, en poids, de polymère, et dans lequel la silice a été rendue hydrophobe.

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