Diones and their use as polymer stabilizers

Details Diones and their use as polymer stabilizers Diones and their use as polymer stabilizers

1978-01-09

1979-03-27

Marquis, Melvyn I.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 457PH, 260 458NT, 544314, C07D23910, C08K 534

Patent

active

041465318

ABSTRACT:
Compounds of the formula I ##STR1## wherein A is alkylidene or optionally alkylated vinylene, B is a group of the formula II ##STR2## wherein R.sub.1 and R.sub.2 are alkyl, R.sub.3, R.sub.4 and R.sub.5 are hydrogen or alkyl and n is 0, 1 or 2 and m is 1 or 2, and X is identical to B if m equals 1 or X is methylene if m equals 2, as stabilizers for organic material.

REFERENCES:
patent: 2567651 (1951-09-01), Papesch et al.
patent: 3137698 (1964-06-01), Pfister
patent: 3352863 (1967-11-01), Soboczenski
patent: 3732228 (1973-05-01), Bertin et al.
patent: 4045404 (1977-08-01), Stephen
patent: 4069197 (1978-01-01), Rosenberger et al.
patent: 4070338 (1978-01-01), Rosenberger et al.

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