Method for protection vinyl polymers from thermo-oxidative destr

Details Method for protection vinyl polymers from thermo-oxidative destr Method for protection vinyl polymers from thermo-oxidative destr

1975-01-22

1978-08-01

Marquis, Melvyn I.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 4595G, 260844, 260848, 260874, 260896, 260897R, 260901, C08K 501

Patent

active

041042441

ABSTRACT:
The method for protection of vinyl polymers from thermo-oxidative degradation in adding to the vinyl polymers inhibitors, viz., poly(arylene alkylenes) having the general formula --Ar.sub.1 --CH.sub.2).sub.k ].sub.m AR.sub.2 [(CH.sub.2).sub.k Ar.sub.1 ].sub.n,
Where Ar.sub.1 and Ar.sub.2 are ##STR1## m+n=2 to 30, k=1 or 2; if k=1, then Ar.sub.1 and Ar.sub.2 are also ##STR2## where X = H; or C.sub.1 - C.sub.4 alkyl; or their hydroperoxides taken in the quantity from 0.01 to 10 per cent of the weight of vinyl polymers. The proposed method ensures prolonged and effective protection of vinyl polymers from thermo-oxidative degradation.

REFERENCES:
patent: 2420862 (1947-05-01), Chambers
patent: 3202729 (1965-08-01), Roberts
patent: 3892815 (1975-07-01), Scherling

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