Modified clays, method of obtaining them, and applications

Details Modified clays, method of obtaining them, and applications Modified clays, method of obtaining them, and applications

C - Chemistry, Metallurgy

01

B

C01B 33/44 (2006.01)

Patent

CA 2637405

The invention relates to modified natural clays made organophilic by means of a polar modifier for increasing their capability of bonding to organic media receiving them, which are composed of natural clays containing, in their structures, monovalent and/or multivalent metal ions and a polar modifier for modifying the surface state of said clays, which is chosen from the group of oligomers having hydrocarbon chains containing carboxylic acid functional groups. The invention is used as organophilic mineral fillers in polymers.

L'invention concerne des argiles naturelles modifiées rendues organophiles au moyen d'un agent polaire de modification pour augmenter leur capacité d'accrochage à l'égard de milieux organiques récepteurs qui se composent d'argiles naturelles contenant dans leurs structures des ions métalliques monovalents et/ou polyvalents et d'un agent polaire de modification de l'état de surface desdites argiles choisi dans le groupe des oligomères à chaînes hydrocarbonées ayant des fonctions acide carboxyliques. L'invention s'applique en tant que charges minérales organophiles dans les polymères .

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