FIELD: chemistry.
SUBSTANCE: rubber mixture contains 100 pts.wt rubber component, 1-4 pts.wt technical carbon, 10-40 pts.wt silicon dioxide and 5-30 pts.wt inorganic filler component. The filler component consists of at least one inorganic filler selected from a group consisting of clay, sericite, talc, aluminium hydroxide, magnesium carbonate and mica. Said rubber component consists of natural rubber and epoxidated natural rubber. Content of said natural rubber in said rubber component ranges from 60 wt % to 70 wt %. Hardness after cross-linking is equal to or less than 50 units on scale A of a hardness gauge. The present rubber mixture has low content of material derived from oil.
EFFECT: low fuel consumption owing to low rolling resistance, and present rubber mixture has satisfactory resistance to crack growth in flexure.
2 cl, 1 dwg, 2 tbl, 6 ex
