Rubber mixts. for tyre running surfaces

摘要

Sulphur-vulcanisable rubber mixts. (I) contain the following components in addition to standard additives and a vulcanisation system: (A) 5-80 pts. wt. conjugated diene/aromatic vinyl cpd. copolymer prepd. by soln. polymerisation; (B) 10-85 pts. wt. conjugated diene/aromatic vinyl cpd. copolymer prepd. by emulsion polymerisation; (C) 0-40 pts. wt. polyisoprene; (D) 10-50 pts. wt. polybutadiene; (E) 25-90 pts. wt. silica filler; and (F) 5-90 pts. wt. carbon black, all w.r.t. 100 pts. wt. of all the elastomers. Also claimed are (i) mixts. (II) contg. 10-85 pts. wt. (B), 5-40 pts. wt. (C), 10-50 pts. wt. (D), 25-90 pts. wt. (E) and 20-90 pts. wt. (F) in addn. to standard additives and a vulcanisation system, (ii) tyre running surfaces contg. the above mixts., and (iii) tyres provided with these running surfaces.