Precipitated silicas

Rubber compositions comprising a precipitated silica with the following physico-chemical properties: BET surface area 35 to 350 m2/g BET/CTAB surface area ratio 0.8 to 1.1 Pore volume, PV 1.6 to 3.4 ml/g Silanol group density 6 to 20 ml/(5 g) Average aggregate size 250 to 1500 nm CTAB surface area 3...

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Bibliographic Details
Main Authors RAUSCH RALF, KUHLMANN ROBERT, GOERL UDO, ESCH HEINZ
Format Patent
LanguageEnglish
Published 04.07.2006
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOUNDS THEREOF
INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OFSOLID INORGANIC COMPOUNDS
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Summary:Rubber compositions comprising a precipitated silica with the following physico-chemical properties: BET surface area 35 to 350 m2/g BET/CTAB surface area ratio 0.8 to 1.1 Pore volume, PV 1.6 to 3.4 ml/g Silanol group density 6 to 20 ml/(5 g) Average aggregate size 250 to 1500 nm CTAB surface area 30 to 350 m2/g DBP value 150 to 300 ml/100 g V2/V1 by Hg porosimetry 0.19 to 0.46 DBP/CTAB 1.2 to 3.5.
Bibliography:Application Number: US20010986468