Natural rubber composition for vehicle
AssigneesHyundai Motor Company, Kia Motors Corporation
InventorsHo Dong Kim, Heon Seob Jung
Life of this patent
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Abstract
A natural rubber composition includes a natural rubber, a carbon black filler in an amount of 40 phr based on an amount of the natural rubber, a sulfur crosslinking agent in an amount of 1 phr of based on the amount of the natural rubber, and an accelerator to adjust vulcanization physical properties and a dynamic ratio. The accelerator includes a semi-ultra accelerator in an amount of 0.3 to 1 phr based on the amount of the natural rubber, a delayed accelerator in an amount of 1 to 2 phr based on the amount of the natural rubber, and an ultra accelerator in an amount of 0.3 to 1 phr based on the amount of the natural rubber.
Claims21
A natural rubber composition comprising:
- a natural rubber;
- a carbon black filler in an amount of 40 phr based on an amount of the natural rubber;
- a sulfur crosslinking agent in an amount of 1 phr of based on the amount of the natural rubber;
- an accelerator comprising:
- a first accelerator in an amount of 0.3 to 1 phr based on the amount of the natural rubber, wherein the first accelerator comprises a 2-mercaptobenzothiazole accelerator or a thiazole-based accelerator;
- a second accelerator in an amount of 1 to 2 phr based on the amount of the natural rubber, wherein the second accelerator comprises a sulfonamide-based accelerator;
- and
- an third accelerator in an amount of 0.3 to 1 phr based on the amount of the natural rubber, wherein the third accelerator comprises a thiuram-based accelerator.
A wheel chassis module of a vehicle, the module comprising:
- a strut insulator;
- a subframe bush;
- and
- a lower arm G bush;
- wherein the subframe bush or the lower arm G bush is formed from a natural rubber composition comprising:
- a natural rubber;
- a carbon black filler in an amount of 40 phr based on an amount of the natural rubber;
- a sulfur crosslinking agent in an amount of 1 phr of based on the amount of the natural rubber;
- a first accelerator in an amount of 0.3 to 1 phr based on the amount of the natural rubber, wherein the first accelerator comprises a 2-mercaptobenzothiazole accelerator or a thiazole-based accelerator;
- a second accelerator in an amount of 1 to 2 phr based on the amount of the natural rubber, wherein the second accelerator comprises a sulfonamide-based accelerator;
- and
- an third accelerator in an amount of 0.3 to 1 phr based on the amount of the natural rubber, wherein the third accelerator comprises a thiuram-based accelerator.
A wheel chassis module of a vehicle, the module comprising:
- a cross member bush;
- a deep mount bush;
- and
- a rear lower arm bush;
- wherein the cross member bush, the deep mount bush or the rear lower arm bush is formed from a natural rubber composition comprising:
- a natural rubber;
- a carbon black filler in an amount of 40 phr based on an amount of the natural rubber;
- a sulfur crosslinking agent in an amount of 1 phr of based on the amount of the natural rubber;
- and an accelerator comprising:
- a first accelerator in an amount of 0.3 to 1 phr based on the amount of the natural rubber, wherein the first accelerator comprises a 2-mercaptobenzothiazole accelerator or a thiazole-based accelerator;
- a second accelerator in an amount of 1 to 2 phr based on the amount of the natural rubber, wherein the second accelerator comprises a sulfonamide-based accelerator;
- and a third accelerator in an amount of 0.3 to 1 phr based on the amount of the natural rubber, wherein the third accelerator comprises a thiuram-based accelerator.
Dependencies are inferred from the claim text.