Rubber composition and vibration damping material

A rubber composition and rubber technology, which is applied in the field of rubber composition and shockproof materials, can solve the problems that the shockproof materials cannot be fully adapted, and achieve the effect of excellent shockproof and durability

Inactive Publication Date: 2009-03-18
SUMITOMO CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, recently, due to the high temperature of the environment in which shockproof materials are used, higher heat resistance is required, so the conventional shockproof materials that use highly unsaturated rubber as raw rubber cannot fully meet this requirement.

Method used

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  • Rubber composition and vibration damping material
  • Rubber composition and vibration damping material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0089] (modulation of rubber combination)

[0090] 55 parts by weight of ethylene-propylene-5-ethylene-2-norbornene copolymer rubber as component (A), 45 parts by weight of natural rubber as component (B), 4,4 1.5 parts by weight of '-bis(α, α-dimethylbenzyl) diphenylamine and 0.5 parts by weight of N, N'-di-2-naphthyl-p-phenylenediamine, aluminum silicate ( SOUTHEASTERN CLAY company manufactures クラウンクレ—) 10 parts by weight, zinc oxide 5 parts by weight, stearic acid 1 part by weight, 2-mercaptobenzimidazole 0.5 parts by weight and 2,2,4-trimethyl-1,2-bis 0.5 parts by weight of the hydroquinoline polymer was put into a 1700 mL Banbury mixer whose initial temperature was adjusted to 80° C., and kneaded for 5 minutes at a rotor speed of 60 rpm to obtain a kneaded product. Then, 9 parts by weight of dicumyl peroxide (40% diluted product) was added to the kneaded product with respect to 100 parts by weight of the total amount of component (A) and component (B) as component (C). ...

Embodiment 2

[0094] As the component (E), 10 parts by weight of aluminum silicate (Burgess Pigment Co., Ltd. バゲスクレ-30) was used instead of aluminum silicate (SOUTHEASTERN CLAY Co., Ltd. Co., Ltd. クラウンクレ-), except that the same operation as in Example 1 was carried out. , making cross-linked sheets. Table 1 shows the evaluation results of the obtained crosslinked sheet.

Embodiment 3

[0096] Except having used 10 weight part of aluminum hydroxides instead of aluminum silicate as a component (E), it carried out similarly to Example 1, and produced the crosslinked sheet. Table 1 shows the evaluation results of the obtained crosslinked sheet.

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Abstract

The invention relates to rubber composition and anti-shock material. The rubber composition comprises: (A) ethane-alpha-olefin-unconjugated polyene copolymers rubber; (B) natural rubber; (C) organic superoxide; (D) aromatic amine series compounds; and (E) aluminum series inorganic compounds.

Description

technical field [0001] The invention relates to a rubber composition and a shockproof material. Background technique [0002] In automobiles, in order to reduce engine vibration and the resulting noise, various anti-vibration materials are used. It goes without saying that shockproof performance is required for this shockproof material, but heat resistance is required due to the high temperature of the operating environment due to heat generated by the engine, and durability against repeated external forces over a long period of time is also required. [0003] Highly unsaturated rubbers such as natural rubber (NR) and styrene-butadiene copolymer rubber (SBR) are excellent in shock resistance and durability, so such highly unsaturated rubbers have been used as raw materials for shock-proof materials in the past. However, due to the recent increase in the temperature of the environment in which anti-vibration materials are used, higher heat resistance is required, so conventi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08L7/00C08K5/14C08K5/18C08K3/34C08K3/22C08J3/24
CPCC08K5/14C08K3/22C08K3/34C08K5/18C08L23/16C08L9/00C08L7/00C08L2666/06C08L2666/08
Inventor 中野贞之木村宪仁远山丰久
Owner SUMITOMO CHEM CO LTD
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