Granulate composition of antiblocking agents and additives...

Details Granulate composition of antiblocking agents and additives... Granulate composition of antiblocking agents and additives...

C - Chemistry, Metallurgy

08

K

C08K 9/04 (2006.01) C08J 3/22 (2006.01) C08K 9/12 (2006.01)

Patent

CA 2329227

The invention comprises a granulate consisting of a) a micronized silicic acid gel (A) with an average particle size from 2 to 15 microns, a specific pore volume from 0.3 to 2.0 ml/g, a specific surface (BET) from 200 to 1000 m2/g, in a concentration from 5 to 60 % by weight or b) a hydrated or dehydrated aluminosilicate (B) which contains sodium and/or potassium and/or calcium cations, with a particle size between 1 and 25 microns in a concentration from 5 to 75 % by weight and c) an organic additive composition (C) in a concentration from 25 to 95 % by weight, but at least 5% more (measured by the oil adsorption process) than that which is necessary to fill all pores of the silicic acid and the spaces between the silicic acid particles and the aluminosilicate and the aluminosilicate particles.

L'invention comprend un granulé composé : a) d'un gel d'acide silicique micronisé (A) présentant une taille particulaire moyenne de 2 à 15 micromètres, un volume poreux spécifique compris entre 0,3 et 2,0 ml/g, une surface spécifique (BET) comprise entre 200 et 1000 m<2>/g, dans une concentration de 5 à 60 % en poids ; ou b) d'un aluminosilicate hydraté ou déshydraté (B) contenant des cations de sodium et/ou de potassium et/ou de calcium présentant une taille particulaire comprise entre 1 et 25 micromètres dans une concentration de 5 à 75 % en poids ; et c) d'une composition d'addition organique (C) dans une concentration de 25 à 95 % en poids, mais d'au moins de 5 % de plus (mesurée par le procédé d'adsorption d'huile) que ce qui est nécessaire pour remplir tous les pores de l'acide silicique et les espaces entres les particules d'acide silicique et les particules d'aluminosilicate.

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