Diones and their use as polymer stabilizers

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

1976-03-31

1978-01-17

Czaja, Donald E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 457PH, 260 458R, 260 458NT, 548335, C07D23372, C08K 534

Patent

active

040691977

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 stabilisers for organic material.

REFERENCES:
patent: B532140 (1976-03-01), Dexter et al.
patent: 3821161 (1974-06-01), Stephen
patent: 3821162 (1974-06-01), Dexter
patent: 3919234 (1975-11-01), Ramey et al.
patent: 3939175 (1976-02-01), Schmidt et al.
patent: 3971803 (1976-07-01), Rosenberger et al.

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