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 Russian patent published in 2014 - IPC C08C1/02 C08L7/00 C08L7/02 B60C1/00

Abstract RU 2535681 C2

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

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RU 2 535 681 C2

Authors

Ichikava Naoja

Sakaki Toshijaki

Mijazaki Sumiko

Khosokava Tomokhiro

Matsuura Ai

Dates

2014-12-20—Published

2009-12-14—Filed