Rubber composition and molded rubber products

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9012551
APP PUB NO 20130158181A1
SERIAL NO

13702743

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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To provide a rubber composition capable of sufficiently abrading a sealing lip while sliding it in an initial stage of rotation and sufficiently reducing a running torque, and further capable of securing a sufficient sealing property. The composition includes a first compounding ingredient which is one or more kinds selected from the group consisting of calcium carbonate, magnesium oxide, aluminum oxide and barium sulfate in an amount of 50 to 200 parts by mass based on 100 parts by mass of a rubber component, and a second compounding ingredient which is one or two kinds selected from the group consisting of carbon black and a silica in an amount of more than 0 parts by mass and 50 parts by mass or lower.

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Patent Owner(s)

Patent OwnerAddress
NTN CORPORATION3-17 KYOMACHIBORI 1-CHOME NISHI-KU OSAKA-SHI OSAKA 550-0003
NAKANISHI METAL WORKS CO LTDKITA-KU OSAKA-SHI OSAKA 530-8566

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fukama, Shohei Iwata, JP 5 14
Kaneike, Takashi Osaka, JP 3 0
Kojima, Yasuhiko Osaka, JP 94 627
Sasaki, Katsuaki Iwata, JP 19 52

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