CROSS-LINKED ORGANOSILICON POLYSULPHIDES Russian patent published in 2017 - IPC C07F7/08 C07F7/18 C08L21/00 C08K5/548 B60C1/00 

FIELD: chemistry.

SUBSTANCE: cross-linked organosilicon polysulphide of the formula (I) is proposed, wherein X³ and X⁴, independently of each other, are alkylene; Y is a fragment - (CH₂-)_a, where a = 2-12, or -CH₂CH₂- (OCH₂CH₂)b-, where b = 1-4; y is an integer from 1 to 6; m is an integer from 0 to 20; R⁴, R⁵, R⁶, R⁷, R⁸ and R⁹, independently of one another, are -OH, -ONa, -OK, -O-(Mg/2), -O-(Ca/2), methoxy or ethoxy, and, at least, one of the substituents R⁴, R⁵, R⁶, R⁷, R⁸ and R⁹ is a residue of the formula (Ia), in which the substituents and indices are as defined above for the formula (I). The method for preparing this polysulfide and its use as an additive to rubbers are also proposed.

EFFECT: using the proposed polysulfide as an additive to polymers and rubbers makes it possible to improve the adhesion characteristics and surfactant properties of polymers and rubbers.

25 cl, 1 dwg, 2 tbl, 1 ex