Seal Member Having Excellent Wear Resistance, and Seal Structure Using Same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Issued Date -
Oct 24, 2013
app pub date -
Nov 28, 2011
filing date -
Nov 26, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
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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