Antioxidant for rubber

Details Antioxidant for rubber Antioxidant for rubber

C - Chemistry, Metallurgy

09

K

6/122, 31/79, 40

C09K 15/30 (2006.01) C07D 215/06 (2006.01) C08K 5/3437 (2006.01) C08L 7/00 (2006.01) C08L 9/00 (2006.01)

Patent

CA 1107053

Abstract Of The Disclosure This invention relates to an antioxidant for rubber having an excellent antioxidizing effect upon deterioration of vulcanized natural or synthetic rubber or the like by light, ozone or oxygen, and deterioration thereof by dynamic fatigue, especially heat deterioration, and having no staining effect by coloring even when applied to white rubber and the like, and further preventing effect for the blooming when unvulcanized, and also no lowering effect for the peeling resistance between rubber and rubber. The antioxidant of this invention which comprises purified 2,2,4-trimethyl-1,2- dihydroquinoline polymers contains more than 50% by weight of dimer component thereof as the main component and not more than 20% by weight of the amine impurities other than said polymers.

307860

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