LOW-PERMEABILITY NANOCOMPOSITES Russian patent published in 2007 - IPC C08K3/34 C08K5/17 C08L25/10 C08L25/16 

FIELD: composite materials.

SUBSTANCE: invention relates to nanocomposite comprising (i) clay; (ii) copolymer constituted by units derived from C₄-C₇-isomonoolefin, units derived from p-methylstyrene, and units derived from p-halomethylstyrene; or butylrubber constituted by units derived from C₄-C₇-isoolefin, units derived from multiolefin, and units derived from halogenated multiolefin; and (iii) one or several stratifying additives including amine, said stratifying additive being present in nanocomposite in amount between 0.1 and 20%. Nanocomposite is applicable for manufacturing internal shells for tires and inner tubes for automotives, including trucks and other vehicles for transportation loads and/or passengers.

EFFECT: reduced air permeability of nanocomposite products.

18 cl, 5 tbl