Polyalkylenecarbonate compositions with improved thermal stabili

Details Polyalkylenecarbonate compositions with improved thermal stabili Polyalkylenecarbonate compositions with improved thermal stabili

1980-09-12

1981-12-01

Pertilla, Theodore E.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Ethylenically unsaturated reactant admixed with a preformed...

260 4575, 525523, C08L 6900, C08K 542

Patent

active

043037593

ABSTRACT:
Polyalkylene carbonates are stabilized against oxidative degradation by the inclusion therein of 0.2-10%, preferably 1-5%, of peroxyl-reactive sulphur-containing additive. Such compounds, found to be effective, are 3-t-butyl-4-hydroxy-5-methylphenyl sulfide, diphenyl sulfide, diphenyl sulfoxide, diphenyl sulfone, di-(p-tolyl sulfide) and sulphur.

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patent: 4066630 (1978-01-01), Dixon et al.
patent: 4104264 (1978-08-01), Dixon et al.
patent: 4145524 (1979-03-01), Frosch et al.
patent: 4145525 (1979-03-01), Dixon et al.

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