Elastomeric articles made organosilane polysulfide silanes that can be used as a coupling agent, particularly, from such compositions, and elastomeric compositions containing them

摘要

The invention relates to propylene articulated polysulphide monoorganoxysilanes of formula (I); wherein R1, R2 et R3 are monovalent hydrocarbon groups and x is a number ranging from 3 +/- 0,1 to 5 +/- 0,1. Said compounds can be used as white charge-elastomer coupling agents in dienic rubber compositions comprising a white charge such as a siliceous material as a reinforcing charge. The invention also relates to dienic elastomer compositions comprising at least one polysulphide silane of formula (I), and dienic elastomer articles prepared from said compositions.