C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
400/6441
C08L 23/16 (2006.01) C09K 3/10 (2006.01)
Patent
CA 2034290
A sealing part formed a peroxide vulcanizate of a rubber compound having as a polymer component an EPDM mixture of 50 to 90 parts by weight of an EPDM having a Mooney viscosity (ML1+4 100°C) of 35 to 55, and 50 to 10 parts by weight of a low-Mooney EPDM (a subpolymer) having a Mooney viscosity (ML1+4 100°C) of 5 to 25. The sealing part of the present invention has a high resistance to low-temperature compression permanent strain and is excellent in the kneadability of a rubber compound for producing the sealing part.
Pièce d'étanchéité formée d'un vulcanisat au peroxyde d'un composé de caoutchouc ayant comme constituant polymérique un mélange d'EPDM constitué de 80 à 90 parties en poids d'un EPDM présentant une consistance Mooney (ML... 100 degrés C) de 35 à 55 et de 50 à 10 parties en poids d'un EPDM (sous-polymère) ayant une consistance Mooney (ML... 100 degrés C) de 5 à 25. La pièce d'étanchéité de la présente invention offre une résistance élevée aux contraintes permanentes de compression à basse température et est excellente du point de vue malaxage d'un composé de caoutchouc.
Hayashi Hidenori
Honda Hidenobu
Nakata Rikizou
Terashima Kiyomitsu
Gowling Lafleur Henderson Llp
Toyoda Gosei Co. Ltd.
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