COMPOSITION FOR MAKING SLEEPER RUBBER SPACINGS Russian patent published in 2012 - IPC C08L9/06 C08L17/00 B29B17/00 

FIELD: chemistry.

SUBSTANCE: composition contains butadiene-styrene rubber SKS-30-ARM, a product of secondary processing rubber and target additives of sulphur, altax, zinc oxide, stearic acid and a plasticiser. The product of secondary processing rubber contained in the composition is modified ground rubber crumbs obtained from grinding rubber in the presence of 0,0'-bis-(1,3,5-tri-tertbutylcyclohexadien-2,5-on-4-yl)-2-methyl-5-iso-propyl-n-benzoquinone-dioxine with the following ratio of components in wt %: butadiene-styrene rubber SKS-30-ARM 100; modified rubber crumbs 20.0-50.0; sulphur 0.5-1.5; altax 0.5-1.0; zinc oxide 0.5-1.0; stearic acid 0.5-1.0; plasticiser 3.0-5.0.

EFFECT: improved physical and mechanical properties of the composition and improved environmental friendliness.

2 cl, 1 tbl, 12 ex