COMPOSITION FOR MAKING FOAMED TYRE Russian patent published in 2016 - IPC C08L53/00 B60C1/00 C08J9/00 C08L21/00 

FIELD: technological processes.

SUBSTANCE: invention relates to a composition for making foamed tire. Composition contains 100 weight parts of mixture of olefin block-copolymer and rubber as polymer matrix, 0.02-4.0 wt% of the cross-linking agent and 1-6 wt% of the foaming agent. Olefin block-copolymer and rubber are present in amount of 50-80 wt% and 20-50 wt%, correspondingly relative to the total weight of the polymer matrix. Olefin block-copolymer is a multiblock copolymer which contains ethylene and one or more α-olefin comonomers in polymerized form and a plurality of blocks or segments of two or more polymerized units.

EFFECT: invention improves elasticity, reduces hardness of the composition and provides suitability for making tyre.

6 cl, 1 tbl