Process for producing stabilized olefin terpolymers and stabiliz

Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal

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260 66, 260 457R, 526 19, 526 39, 526 40, 526 53, 526 55, 526 54, 526283, C08L 900

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active

041136942

ABSTRACT:
A method is described whereby olefin terpolymers, consisting of ethylene, an alpha olefin and a polyene having in the molecule, in addition to the double bond participating in the formation of the macromolecule, at least one conjugated double bond system, are stabilized against oxidative aging without destroying their characteristic high vulcanization rate by reacting them with a dienophilic agent represented by one of the following formulae: ##STR1## wherein R and R.sub.6 may be an alkyl, alkenyl, cycloalkyl, aryl or aralkyl radical having up to 8 carbon atoms, R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 may be hydrogen or akyl, aryl, cycloalkyl or aralkyl radicals having up to 8 carbon atoms, the R.sub.1 -R.sub.2 and R -R pairs may be divalent radicals forming condensed rings.

REFERENCES:
patent: 3538193 (1970-11-01), Meredith
patent: 3625514 (1972-03-01), Cesca et al.
patent: 3657204 (1972-04-01), Cesca et al.
patent: 3764588 (1973-10-01), Arrighetti et al.

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