Inventor

LUZZI JOHN J

42 patents

Patents

42 patents

US5198134AMar 30, 1993

Substituted naphthalenediamine stabilizers

CIBA GEIGY CORP26 citations92

US4089842AMay 16, 1978

Hindered piperidine carboxylic acids, metal salts thereof and stabilized compositions

CIBA GEIGY CORP31 citations92

US4191682AMar 4, 1980

Hindered piperidine carboxylic acids, metal salts thereof and stabilized compositions

CIBA GEIGY CORP25 citations82

US4191829AMar 4, 1980

Substituted piperazine dione oxyls and hydroxides and polymer compositions stabilized thereby

CIBA GEIGY CORP20 citations82

US3960809AJun 1, 1976

Compositions stabilized with hindered piperidine carboxylic acids

CIBA GEIGY CORP20 citations76

US5574163ANov 12, 1996

Process for the preparation of N-oxyl hindered amine esters

CIBA GEIGY CORP12 citations74

US4208522AJun 17, 1980

Substituted piperazine diones

CIBA GEIGY CORP7 citations74

US4101509AJul 18, 1978

Hindered piperidine carboxylic acids, metal salts thereof and stabilized compositions

CIBA GEIGY CORP8 citations74

US4069199AJan 17, 1978

Metal salts of hindered piperidine carboxylic acids and stabilized compositions

CIBA GEIGY CORP12 citations74

US4069196AJan 17, 1978

Piperidyl esters of higher di-tri-, and polybasic aliphatic carboxylic acids as stabilizers for polymeric materials

CIBA GEIGY CORP9 citations74

US4067848AJan 10, 1978

Alkyl alkanoate derivatives of substituted piperazine-diones and polymer compositions stabilized thereby

CIBA GEIGY CORP10 citations74

US4056507ANov 1, 1977

Hindered piperidine carboxylic acids, metal salts thereof and stabilized compositions

CIBA GEIGY CORP19 citations74

US4051137ASep 27, 1977

Substituted piperazine diones and polymeric compositions stabilized thereby

CIBA GEIGY CORP6 citations74

US4031095AJun 21, 1977

Hindered piperidine carboxylic acids, metals salts thereof and stabilized compositions

CIBA GEIGY CORP12 citations74

US4001181AJan 4, 1977

Hindered piperidine carboxamide acids, metal salts thereof, and stabilized compositions

CIBA GEIGY CORP15 citations74

US3992351ANov 16, 1976

Alkyl alkanoate derivatives of substituted piperazines and polymer compositions stabilized thereby

CIBA GEIGY CORP7 citations74

US3969316AJul 13, 1976

3,5-Dialkyl-4-hydroxyphenylalkyl substituted piperazine diones and polymeric compositions stabilized thereby

CIBA GEIGY CORP6 citations74

US3968078AJul 6, 1976

Alkyl alkanoate derivatives of substituted piperazine-diones and polymer compositions stabilized thereby

CIBA GEIGY CORP9 citations74

US3939163AFeb 17, 1976

Metal salts of hindered piperidine carboxylic acids and stabilized compositions

CIBA GEIGY CORP7 citations74

US4534874AAug 13, 1985

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

CIBA GEIGY CORP13 citations73

US4618440AOct 21, 1986

Substituted 4-hydroxybenzylthio aldehyde and ketone stabilizers

CIBA GEIGY CORP13 citations72

US3943102AMar 9, 1976

Compositions stabilized with polyol esters of benzoyloxybenzoic acids

CIBA GEIGY CORP12 citations66

US4219464AAug 26, 1980

Hindered piperidine carboxylic acids, metal salts thereof and stabilized compositions

CIBA GEIGY CORP3 citations63

US4139520AFeb 13, 1979

Compositions stabilized with hindered piperidine carboxylic acids or metal salts thereof

CIBA GEIGY CORP3 citations63

US4125517ANov 14, 1978

Substituted piperazine diones and polymeric compositions stabilized thereby

CIBA GEIGY CORP2 citations63

US4120846AOct 17, 1978

Benzoyloxybenzoates and compositions stabilized therewith

CIBA GEIGY CORP5 citations63

US4116933ASep 26, 1978

Hindered piperidine carboxylic acids, metal salts thereof and stabilized compositions

CIBA GEIGY CORP6 citations63

US4087406AMay 2, 1978

Metal salts of hindered piperidine carboxylic acids and stabilized compositions

CIBA GEIGY CORP2 citations63

US4070335AJan 24, 1978

3,5-Dialkyl-4-hydroxyphenylalkyl substituted piperazine diones and polymeric compositions stabilized thereby

CIBA GEIGY CORP2 citations63

US4051104ASep 27, 1977

Benzoyloxybenzoates and compositions stabilized therewith

CIBA GEIGY CORP5 citations63

US4038249AJul 26, 1977

Metal salts of benzoyloxybenzoates and compositions stabilized therewith

CIBA GEIGY CORP2 citations63

US4007156AFeb 8, 1977

Acylated derivatives of substituted piperazines and polymeric compositions stabilized thereby

CIBA GEIGY CORP5 citations63

US3979360ASep 7, 1976

Compositions stabilized with benzoyloxybenzamides

CIBA GEIGY CORP4 citations63

US5387691AFeb 7, 1995

2-(benzotriazol-2-yl)-4-alkyl-6-(2-hydroxy-3-benzoyl-6-alkoxybenzyl)phenols and stabilized compositions

CIBA GEIGY CORP3 citations62

US5147568ASep 15, 1992

Substituted 2,3-dihydroperimidine stabilizers

CIBA GEIGY CORP5 citations62

US4898980AFeb 6, 1990

Process for preparing dithiobisphenols

CIBA GEIGY CORP3 citations62

US5439955AAug 8, 1995

2-(benzotriazol-2-yl)-4-alkyl-6-(2-hydroxy-3-benzoyl-6-alkoxybenzyl)phenols and stabilized compositions

CIBA GEIGY CORP1 citations51

US5012003AApr 30, 1991

Process for preparing dithiobisphenols

CIBA GEIGY CORP1 citations51

LUZZI JOHN J

Patents

Substituted naphthalenediamine stabilizers

Hindered piperidine carboxylic acids, metal salts thereof and stabilized compositions

Hindered piperidine carboxylic acids, metal salts thereof and stabilized compositions

Hindered piperidine carboxylic acids and metal salts thereof

Bicyclic hindered amino acids, metal salts thereof and stabilized compositions

Substituted piperazines and polymeric compositions stabilized thereby

Compositions stabilized with bicyclic hindered amines

Substituted piperazine dione oxyls and hydroxides and polymer compositions stabilized thereby

Compositions stabilized with hindered piperidine carboxylic acids

Process for the preparation of N-oxyl hindered amine esters

Substituted piperazine diones

Hindered piperidine carboxylic acids, metal salts thereof and stabilized compositions

Metal salts of hindered piperidine carboxylic acids and stabilized compositions

Piperidyl esters of higher di-tri-, and polybasic aliphatic carboxylic acids as stabilizers for polymeric materials

Alkyl alkanoate derivatives of substituted piperazine-diones and polymer compositions stabilized thereby

Hindered piperidine carboxylic acids, metal salts thereof and stabilized compositions

Substituted piperazine diones and polymeric compositions stabilized thereby

Hindered piperidine carboxylic acids, metals salts thereof and stabilized compositions

Hindered piperidine carboxamide acids, metal salts thereof, and stabilized compositions

Alkyl alkanoate derivatives of substituted piperazines and polymer compositions stabilized thereby

3,5-Dialkyl-4-hydroxyphenylalkyl substituted piperazine diones and polymeric compositions stabilized thereby

Alkyl alkanoate derivatives of substituted piperazine-diones and polymer compositions stabilized thereby

Metal salts of hindered piperidine carboxylic acids and stabilized compositions

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

Substituted 4-hydroxybenzylthio aldehyde and ketone stabilizers

Compositions stabilized with polyol esters of benzoyloxybenzoic acids

Hindered piperidine carboxylic acids, metal salts thereof and stabilized compositions

Compositions stabilized with hindered piperidine carboxylic acids or metal salts thereof

Substituted piperazine diones and polymeric compositions stabilized thereby

Benzoyloxybenzoates and compositions stabilized therewith

Hindered piperidine carboxylic acids, metal salts thereof and stabilized compositions

Metal salts of hindered piperidine carboxylic acids and stabilized compositions

3,5-Dialkyl-4-hydroxyphenylalkyl substituted piperazine diones and polymeric compositions stabilized thereby

Benzoyloxybenzoates and compositions stabilized therewith

Metal salts of benzoyloxybenzoates and compositions stabilized therewith

Acylated derivatives of substituted piperazines and polymeric compositions stabilized thereby

Compositions stabilized with benzoyloxybenzamides

2-(benzotriazol-2-yl)-4-alkyl-6-(2-hydroxy-3-benzoyl-6-alkoxybenzyl)phenols and stabilized compositions

Substituted 2,3-dihydroperimidine stabilizers

Process for preparing dithiobisphenols

2-(benzotriazol-2-yl)-4-alkyl-6-(2-hydroxy-3-benzoyl-6-alkoxybenzyl)phenols and stabilized compositions

Process for preparing dithiobisphenols