Stabilized compositions containing hindered hydroxyalkanoates

Details Stabilized compositions containing hindered hydroxyalkanoates Stabilized compositions containing hindered hydroxyalkanoates

1976-06-07

1977-11-15

Hoke, V.P.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

2603985, C08K 513

Patent

active

040585026

ABSTRACT:
The compounds are esters having the formula ##STR1## wherein R.sub.1 is alkyl, cycloalkyl, alkylthioethyl or alkylpolyoxyalkylene, Z is oxygen or sulfur, R.sub.2 is the group ##STR2## R.sub.3 is hydrogen, alkyl, cycloalkyl, or .alpha.-methylbenzyl, R.sub.4 is alkyl or cycloalkyl, R.sub.5 is hydrogen or alkyl, provided when R.sub.3 is hydrogen, R.sub.5 is alkyl and R.sub.4 is located on the carbon atom ortho to the hydroxyl group, and A is a covalent carbon bond or lower alkylene.

REFERENCES:
patent: 3247240 (1966-04-01), Meier et al.
patent: 3285855 (1966-11-01), Dexter et al.
patent: 3917672 (1975-11-01), Schmidt
patent: 3984460 (1976-10-01), Spivack

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