John J Luzzi

Hindered piperidine carboxylic acids, metal salts thereof and stabilized compositions

Alkyl alkanoate derivatives of substituted piperazines and polymer compositions stabilized thereby

Substituted piperazinedione carboxylic acids and metal salts thereof

Substituted piperazine diones and polymeric compositions stabilized thereby

Anti-oxidative, anti-thermal, and anti-actinic degradation amides of hydroxyphenylalkylthio alkanoic acids, compositions, and method of use therefor

Substituted piperazine dione oxyls and hydroxides and polymer compositions stabilized thereby

Certain dioxopiprazinyl-alkyl-phenols

Hindered piperidine carboxylic acids and metal salts thereof

Substituted naphthalenediamine stabilizers

Substituted 4-hydroxybenzylthio aldehyde and ketone stabilizers