| 摘要 |
<p>A natural rubber, characterized in that it is prepared by subjecting a natural rubber latex to deprotenization treatment and is so adjusted as to have a total nitrogen content of 0.12 to 0.30 wt %; and a rubber composition and a pneumatic tire using the natural rubber. The above natural rubber exhibits improved processability without detriment to excellent physical properties inherent in natural rubber, and the rubber composition is improved in low heat build-up property, abrasion resistance and the like and thus can be advantageously used in a pneumatic tire as a tire casing element, a tire tread element or the like.</p> |
