Apollo Tyres has been granted a patent for a cross-linkable rubber composition containing natural rubber, filler, and a resin made of ethylene, acrylic ester, and maleic anhydride. The resin content ranges from =5 to =20 phr. GlobalData’s report on Apollo Tyres gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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According to GlobalData’s company profile on Apollo Tyres, Self-sealing tyres was a key innovation area identified from patents. Apollo Tyres's grant share as of April 2024 was 51%. Grant share is based on the ratio of number of grants to total number of patents.

The granted patent (Publication Number: US11920032B2) discloses a cross-linkable rubber composition comprising natural rubber (NR), a filler (such as carbon black), and a resin. The composition is characterized by the presence of a terpolymer of ethylene, acrylic ester, and maleic anhydride within specific ranges. The natural rubber is required to be present in an amount of at least 60 phr, while the carbon black filler should be present in an amount ranging from =40 to =70 phr.

Furthermore, the patent claims a cross-linked rubber composition obtained by cross-linking the aforementioned rubber composition. This cross-linked rubber composition exhibits specific properties such as a tan delta value at 70°C of =0.13, a storage modulus G' of =8.5, a rebound value of =64%, and a tensile strength of =19.55 MPa. Additionally, the composition should have a payne value G' at 0.56% strain of =360 kPa, determined at a temperature of 100°C and a frequency of 0.5 Hz. The patent also extends to a tire comprising a rim cushion, where the rim cushion is made of the cross-linked rubber composition as described in the claims.

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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.