COMPOSITION OF RUBBER MIXTURE BASED ON COMBINATION OF GENERAL PURPOSE RUBBERS (OPTIONS) Russian patent published in 2023 - IPC C08L9/00 C08K3/14 C08K5/01 

FIELD: polymer materials science.

SUBSTANCE: composition of rubber mixtures used for the production of tires and other multilayer rubber technical products. In one embodiment, the mixture contains a combination of “СКИ-3” and “СКД” rubbers and other necessary additives. The mixture has the following composition, expressed in wt. parts: rubber “СКИ-3” – 50.0; “СКД” rubber – 50.0; sulfenamide “Ц” – 2.0; zinc white – 5.0; stearin – 2.0; protective wax “АФ-1” – 2.0; carbon black “П-514” – 50.0; oil “ПН-6” – 3.0; sulfur – 1.2; polyhexene – 4.0. In another embodiment, a mixture of “СКД” and “СКМС-30-“АРК” “М-15” rubbers is proposed with the following composition, expressed in wt. parts: “СКМС-30-АРК М-15” – 80.0; rubber “СКД” – 20.0; sulfenamide “Ц” – 1.6; Santoflex – 0.3; zinc white – 2.5; technical stearin – 2.0; oil “ПН-6” – 17.0; protective wax “АФ-1” – 2.0; carbon black “П-514” – 50.0; sulfur – 2.2; polyhexene – 4.0.

EFFECT: proposed mixture options have increased adhesiveness, high bond strength between layers of reinforcing material and improved resistance to thermal aging after vulcanization, which allows for an increased number of working cycles of products before their destruction.

3 cl, 1 dwg, 4 tbl, 6 ex