C - Chemistry – Metallurgy – 01 – B
Patent
C - Chemistry, Metallurgy
01
B
C01B 33/193 (2006.01) C08K 3/36 (2006.01)
Patent
CA 2548902
The invention relates to a highly-structured precipitated silica having a low water uptake and high dispersibility in different pasty or solid matrices or media, elastomers or silicon, and to the preparation method thereof. The invention also relates to the use of said silica, for example, as a reinforcing filler in matrices based on elastomers (clear or semi-clear for shoe soles), in silicon matrices (in particular, for the coating of electric cables), as a filler and/or support and/or vehicle in different compositions (food compositions, cosmetic compositions, pharmaceutical compositions, compositions for the production of paints or paper, compositions for the production of porous membrane separators for batteries) or as a thickening agent in toothpastes.
L'invention concerne une silice de précipitation de haute structure, à faible reprise en eau, de dispersibilité élevée au sein de matrices ou milieux solides, élastomères, silicones ou pâteux divers, ainsi que son procédé de préparation. Elle concerne également son utilisation notamment comme charge renforçante dans les matrices à base d'élastomères (clairs ou semi-clairs, pour semelles de chaussures), dans les matrices silicones (en particulier pour l'enrobage des câbles électriques), comme charge et/ou support et/ou excipient dans des compositions diverses (alimentaires, cosmétiques, pharmaceutiques, fabrication de peintures ou de papiers, fabrication de membranes poreuses séparatrices pour batteries), comme agent épaississant dans les dentifrices.
Chevallier Yvonick
Dromard Adrien
Petit Dominique
Valero Remi
Rhodia Chimie
Robic
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