Rubber compsns. partic. for running surfaces of tyres - for use on icy or snowy roads contain powdered leather or gelatin

摘要

Rubber compsns. contg. leather powder (I) are claimed. Also claimed are: (1) rubber compsns. contg. gelatine powder with average particle size less than 500 microns. (2) Tyres with running surface of vulcanised rubber, cells having average aspect ratio up to 0.7 and prepd. from rubber compsn. contg. gelatine. (3) Spike-less winter tyres having running surface prepd. from rubber compsn. contg. (I) having reticulate and/or papillary layer with hierarchial structure of fibres of collagen protein. USE/ADVANTAGE - For soles and partic. tyres esp. for icy and snow-covered roads. Tyres have good abrasion resistance on usual road surfaces and improved sliding resistance on snow and ice.