VULCANISED POLYMER NANOCOMPOSITE AND METHODS OF PRODUCING POLYMER NANOCOMPOSITE (VERSIONS) Russian patent published in 2012 - IPC C08K3/34 C08K5/17 C08K5/49 C08L23/28 C08L23/32 C08L23/36 B82Y30/00 C08F210/12 B60C1/00 

FIELD: chemistry.

SUBSTANCE: nanocomposite contains a butyl rubber ionomer which contains repeating units obtained from at least one isoolefin monomer, where at least 3.5 mol % of the repeating units are obtained from at least one multi-olefin monomer and at least one nitrogen- or phosphorus-based nucleophile, and filler with aspect ratio from 1:3 to 1:200, contained in the butyl rubber ionomer. In one version of the present invention, the nanocomposite contains ionomers which are obtained in situ during formation of the nanocomposite, which leads to the inclusion of the ionomer into the nanocomposite. The method involves obtaining a bromated butyl rubber polymer; adding a modifier containing a nitrogen- or phosphorus-based nucleophile; adding filler; mixing the polymer, modifier and filler; vulcanising the nanocomposite.

EFFECT: nanocomposites demonstrate improved air-tightness and stretching properties compared to existing nanocomposites obtained using conventional bromated butyl rubber.

14 cl, 11 tbl, 36 ex