NATURAL RUBBER AND RUBBER COMPOSITION CONTAINING THE SAME

摘要

A natural rubber which is reduced in heat buildup and retains the aging resistance inherent in natural rubber; and a composition of the natural rubber. The natural rubber is characterized in that it is a rubber obtained especially from a latex obtained by partly removing the proteins from a natural rubber latex by a mechanical separation technique and that the total nitrogen content in the rubber is from 0.1 wt.% to 0.4 wt.%, excluding 0.1 wt.%. The rubber composition comprises the natural rubber and a filler incorporated therein.