Precipitated silica granulates

C - Chemistry – Metallurgy – 08 – K

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C08K 9/08 (2006.01) C01B 33/00 (2006.01) C01B 33/193 (2006.01) C08K 3/36 (2006.01) C09C 1/30 (2006.01)

Patent

CA 1095688

ABSTRACT OF THE DISCLOSURE The present invention provides precipitated silica granulaters, having the following physico-chemical characteristic date: powder density (DIN 53194) : 200 - 300 g/litre l/d ratio : 0.8 ? l/d ? 3.5 hardness of single granulate : 80 - 175 pond dust content (DIN 53583) : 0.2 - 0.4% by weight abrasion (DIN 53583) : 0.2 - 0.3% by weight The granulates are useful as fillers in rubber mixtures.

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