ELASTOMER COMPOSITIONS, INCLUDING HYDROCARBON POLYMER ADDITIVES AND POSSESSING HIGHER AIR-TIGHTNESS Russian patent published in 2014 - IPC C08L23/18 C08K3/34 B60C1/00 B60C5/00

Abstract RU 2519393 C2

FIELD: chemistry.

SUBSTANCE: invention relates to elastomer compositions, possessing improved air-tightness. Vulcanite elastomer composition includes at least one C₄-C₇monoolefin elastomer, hydrocarbon additive and clay. Hydrocarbon polymer additive includes 75 wt % of cyclic components, with its M_W constituting 500-700 g/mol and T_c constituting 65-75°C. Permeability coefficient of vulcanite elastomer composition at 40°C constitutes 90 cm³·mm/(m²·day) or less. Vulcanite composition represents barrier for air.

EFFECT: invention makes it possible to improve mixture technological effectiveness and increase air-tightness.

12 cl, 8 tbl, 3 ex

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RU 2 519 393 C2

Authors

Majkl B. Rodzhers

Rik D. Dejvis

Antoni Dzh. Dejvis

Vehjtsin Vehn

Dates

2014-06-10—Published

2009-08-06—Filed