MUMBAI, India, Aug. 22 -- Intellectual Property India has published a patent application (202517073389 A) filed by Public Joint Stock Company Sibur Holding (Pjsc Sibur Holding), Tobolsk, Russia, on Aug. 1, for 'cross-linked polydiene and rubber mix based thereon.'
Inventor(s) include Lagunova, Svetlana Alekseevna; Dzhabarov, Georgy Victorovich; Pirogov, Roman Sergeevich; Muromtsev, Denis Nikolaevich; and Lukyanov, Alexei Sergeevich.
The application for the patent was published on Aug. 22, under issue no. 34/2025.
According to the abstract released by the Intellectual Property India: "The invention relates to the production of synthetic rubbers which can be used in the manufacture of tyres and tyre parts, mechanical rubber goods, golf balls and the like. More particularly, the present invention relates to a cross-linked polydiene that is characterized by coefficient of linearity CL values in a range of from 0.35 to 0.75 and coefficient of viscous deformation CVD values in a range of from 1.5 to 2.3. The polydienes according to the invention have an optimal balance of linear polymer and branched polymer properties, resulting in superior workability and superior elastic hysteresis and physical and mechanical properties. The invention further relates to a method for obtaining a cross-linked polydiene and to a rubber mix based thereon. In addition, the invention relates to the use of said rubber mix to produce mechanical rubber goods, particularly automotive tyres, as well as to an article based on said rubber mix, particularly automotive tyres."
The patent application was internationally filed on Mar. 10, 2023, under International application No.PCT/RU2023/000066.
Disclaimer: Curated by HT Syndication.