COMPOSITION CONTAINING POLYMERS FUNCTIONALISED BY SEVERAL FUNCTIONAL GROUPS Russian patent published in 2011 - IPC C08L15/00 C08L19/00 C08C19/00 C08C19/22 C08C19/25 

FIELD: chemistry.

SUBSTANCE: in order to obtain a polymer composition which can be used to make rubber articles which demonstrate an acceptable balance of operational properties, a polymer is functionalised to increase degree of interaction between the polymer and different filler particles, for example silicon dioxide and technical carbon. A composition containing carbanion polymer chains is obtained. Part of said chains reacts with a first compound to obtain a first functionalised polymer. A second compound is added to the composition and the other part of the polymer chains reacts with the second compound to obtain a second functionalised polymer in the presence of the first functionalised polymer. The first compound has a protected amino group and at least one functional group is obtained from the protected amino group. The second compound is tetraalkyl orthosilicate or alkyl alkoxysilane and at least one functional group contains an alkoxysilane fragment.

EFFECT: high degree of interaction of the polymer with filler and reduced tendency for agglomeration of the filler particles, which has a positive effect on physical properties of the articles.

9 cl, 4 tbl, 17 ex