2-Phenyl-indole derivative stabilizers for PVC resins

Details 2-Phenyl-indole derivative stabilizers for PVC resins 2-Phenyl-indole derivative stabilizers for PVC resins

1976-12-29

1978-06-20

Hoke, V.P.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C08K 535

Patent

active

040961125

ABSTRACT:
New stabilizers for polymers of vinyl chloride, the said stabilizers being 2-phenyl-indole derivatives corresponding to the formula: ##STR1## wherein R.sub.1 and R.sub.2, which are the same or different, each represent a branched- or straight-chain alkyl group containing from 1 to 12 carbon atoms, a cyclohexyl radical, a branched- or straight-chain alkyloxy group containing from 1 to 12 carbon atoms, a benzyloxy radical, a hydroxy radical or R.sub.1 and R.sub.2 represent together an alkylenedioxy radical containing from 1 to 3 carbon atoms, R.sub.3 represents a hydrogen atom, a methyl or methoxy radical, with the proviso that one at least of the substituents R.sub.1 or R.sub.2 does not represent an alkyl radical.

REFERENCES:
patent: 3781279 (1973-12-01), Crounse et al.
patent: 3888818 (1975-06-01), Deblandre et al.
patent: 4024155 (1977-05-01), Pigerol et al.
CA vol. 59 (1963) p. 11434c - Szmuszkovicz.
CA vol. 49 (1955) p. 9001i - Woodard et al.
CA vol. 54, pp. 9883-9884 (1960) - Bruce.

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