NATURAL RUBBER AND METHOD OF OBTAINING THEREOF, RUBBER MIXTURE AND PNEUMATIC TYRE, MADE WITH APPLICATION OF SAID MIXTURE, MODIFIED AND NATURAL RUBBER AND METHOD OF OBTAINING THEREOF AND RUBBER MIXTURE FOR PROTECTOR OR COVERING FRAMEWORK CORD, AND PNEUMATIC TYRE, MADE WITH APPLICATION OF SAID MATERIAL

摘要

FIELD: chemistry.;SUBSTANCE: invention relates to natural rubber, method of its obtaining, rubber mixture and pneumatic tyre, as well as to modified natural rubber, method of its obtaining, rubber mixture for protector or framework cord covering and pneumatic tyre with application of rubber mixture. Natural rubber is obtained by saponification of natural rubber latex and repeated washing of rubber that coagulated with removal of phosphorus compound, separated in the process of saponification, by washing. Natural rubber wit h content of phosphorus 200 ppm or less is obtained.;EFFECT: natural rubber with content of phosphorus 200 ppm or less makes it possible to improve its processability, rubber mixtures and tyres with its application have low heating and low resistance to rocking, which increases fuel economy.;42 cl, 12 tbl, 67 ex