Rubber composition capable of protecting against metal ion aging and use thereof
AssigneeSennics Co., Ltd.
InventorsYang GAO, Hao WANG, Xiangyun GUO
Life of this patent
Estimating the term…
Abstract
A compound of formula A which is used as an anti-aging agent, a rubber composition comprising the compound of formula A, and a method of using the compound in the rubber composition are provided. The rubber composition of the present invention is used as an entire or partial rubber matrix of a tire, especially as a tire belt rubber. The anti-aging agent of the present invention can provide good rubber-steel wire adhesion performance, improve the thermal oxidative aging resistance of the rubber composition, and especially improve the mechanical properties and adhesion properties after aging in the presence of metal ions, prolonging the service life of tires.
Claims20
A rubber composition, wherein a formulation of the rubber composition comprises:
- 100 parts by mass of a diene elastomer,
- 0.2-5 parts by mass of a cobalt salt, and
- 0.5-5 parts by mass of a compound of formula A:
- wherein R1 is a C1-C8 alkyl, and R2 is a C1-C8 alkyl.
A method of improving mechanical performance and adhesion performance to steel wire after thermal oxidative aging in presence of metal ion for a rubber composition, comprising:
- applying a compound of formula A in a rubber composition, wherein in formula A,
- R1 is a C1-C8 alkyl, and R2 is a C1-C8 alkyl.
Dependencies are inferred from the claim text.