Seal Member Having Excellent Wear Resistance, and Seal Structure Using Same

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United States of America Patent

APP PUB NO 20130277916A1
SERIAL NO

13989248

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Abstract

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A seal member which is used in a seal part comprising a molded rubber article produced by vulcanizing a rubber composition comprising, a hydrogenated nitrile rubber (A), carbon black (B), and carbon black (C) and/or carbon fiber (D), wherein carbon black (B) has a DBP oil absorption of 250 to 450 mL/100 g, carbon black (C) has a DBP oil absorption of 200 mL/100 g or less, and carbon fiber (D) has an average fiber length of 0.05 to 2 mm and an average fiber diameter of 5 to 30 μm; and wherein, based on 100 parts by mass of the hydrogenated nitrile rubber (A), the amount of carbon black (B) is 5 to 15 parts by mass, the total amount of carbon black (C) and/or carbon fiber (D) is 3 to 35 parts by mass, and the total content of the fillers is 40 parts by mass or less.

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Patent Owner(s)

Patent OwnerAddress
UCHIYAMA MANUFACTURING CORP338 ENAMI NAKA-KU OKAYAMA-SHI OKAYAMA 702-8004

International Classification(s)

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  • 2011 Application Filing Year
  • C09K Class
  • 1857 Applications Filed
  • 1322 Patents Issued To-Date
  • 71.20 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances20112012201320142015201620172018201920202021202220230255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kasamoto, Tadashi Kurashiki-shi, JP 10 30
Katayama, Tatsuo Akaiwa-shi, JP 24 61
Sakate, Kazushi Tsuyama-shi, JP 3 4

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Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges593749142211074221901 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7071 - 8081 - 9091 - 100100 +0255075100125150175200225250275300325350375400

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