Process for producing stabilized olefin terpolymers and stabiliz

Details Process for producing stabilized olefin terpolymers and stabiliz Process for producing stabilized olefin terpolymers and stabiliz

1975-04-11

1977-10-25

Phynes, Lucille M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 459R, 260 66, 526 54, 526 55, 526283, C08L 900

Patent

active

040555356

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 alkyl, 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: 3652514 (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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