John C Oppelt

US Patent:

58862234, Mar 23, 1999

Filed:

Apr 8, 1998

Appl. No.:

/057309

Inventors:

John C. Oppelt - Bridgewater NJ

Assignee:

American Cyanamid Company - Madison NJ

International Classification:

C07C23305
C07C23104

US Classification:

564200

Abstract:

There is provided a process for the preparation of substituted. beta. -ketoanilide compounds having the structural formula I ##STR1## The substituted. beta. -ketoanilide compounds are useful for the control of insect pests.

US Patent:

RE309460, May 25, 1982

Filed:

Dec 12, 1980

Appl. No.:

6/215772

Inventors:

Joseph A. Hoffman - Bridgewater NJ
Christos Savides - Piscataway NJ
John C. Oppelt - Bridgewater NJ

Assignee:

American Cyanamid Company - Stamford CT

International Classification:

C08K 553

US Classification:

524120

Abstract:

Flame retardant polyolefin compositions containing polymeric pentaerythrityl phosphonates and ammonium polyphosphate.

US Patent:

41523210, May 1, 1979

Filed:

Aug 7, 1978

Appl. No.:

5/961698

Inventors:

John C. Oppelt - Bridgewater NJ

Assignee:

American Cyanamid Company - Stamford CT

International Classification:

C08K 517

US Classification:

260 4585R

Abstract:

The use of N,N-disubstituted aminoethyl esters as ultraviolet light stabilizers in polymers, particularly polypropylene, is disclosed.

US Patent:

39924343, Nov 16, 1976

Filed:

Dec 30, 1974

Appl. No.:

5/537155

Inventors:

John Christian Oppelt - Somerville NJ
Peter Vincent Susi - Middlesex NJ

Assignee:

American Cyanamid Company - Stamford CT

International Classification:

C07C 978
C07C10326

US Classification:

260473S

Abstract:

Compounds of the formula: ##SPC1## Wherein R. sub. 1 and R. sub. 2 are each branch-chain alkyl of 3 to 8 carbon atoms, R. sub. 3 is --CH. sub. 2 CH. sub. 2 OZ wherein Z is hydrogen or ##SPC2## And R. sub. 4 is hydrogen or R. sub. 3 are useful as light stabilizers in polyolefins. They may be prepared (a) by reacting the 3,5-di-alkyl-4-hydroxybenzoyl chloride with the appropriate amine in the presence of an acid acceptor or (b) by reacting the corresponding benzoic acid with the appropriate amine in the presence of a carbodiimide as dehydrating agent.

US Patent:

40523616, Oct 4, 1977

Filed:

Dec 30, 1974

Appl. No.:

5/537152

Inventors:

Peter Vincent Susi - Middlesex NJ
John Christian Oppelt - Somerville NJ

Assignee:

American Cyanamid Company - Stamford CT

International Classification:

C08K 534

US Classification:

260 458N

Abstract:

Compounds of the formula: ##STR1## wherein R. sub. 1 and R. sub. 2 are each branch-chain alkyl of 3 to 8 carbon atoms and R. sub. 3 and R. sub. 4 are each alkyl of 1 to 4 carbon atoms are useful as light stabilizers in polyolefins. They may be prepared by reacting 3,5-dialkyl-4-hydroxybenzoic acid with 4-amino-2,2-dimethyl-6,6-di(lower alkyl)piperidine in the presence of a carbodiimide as dehydrating agent.

US Patent:

42172675, Aug 12, 1980

Filed:

Apr 28, 1978

Appl. No.:

5/900828

Inventors:

Joseph A. Hoffman - Bridgewater NJ
Christos Savides - Piscataway NJ
John C. Oppelt - Bridgewater NJ

Assignee:

American Cyanamid Company - Stamford CT

International Classification:

C07F 940
C08K 553

US Classification:

260 4575D

Abstract:

Flame retardant polyolefin compositions containing polymeric pentaerythrityl phosphonates and ammonium polyphosphate.

US Patent:

39729273, Aug 3, 1976

Filed:

Dec 30, 1974

Appl. No.:

5/537153

Inventors:

Peter Vincent Susi - Middlesex NJ
John Christian Oppelt - Somerville NJ

Assignee:

American Cyanamid Company - Stamford CT

International Classification:

C07C10326

US Classification:

260559R

Abstract:

Compounds of the formula: ##SPC1## Wherein R. sub. 1 and R. sub. 2 are each branch-chain alkyl of 3 to 8 carbon atoms and R. sub. 3 and R. sub. 4 are each hydrogen, alkyl of 1 to 18 carbon atoms, or cycloalkyl of 5 or 6 carbon atoms are useful as light stabilizers in polyolefins. They may be prepared (a) by reacting the 3,5-di-alkyl-4-hydroxybenzoyl chloride with the appropriate amine in the presence of an acid acceptor or (b) by reacting the corresponding benzoic acid with the appropriate amine in the presence of a carbodiimide as dehydrating agent.

US Patent:

40666140, Jan 3, 1978

Filed:

Dec 30, 1974

Appl. No.:

5/537154

Inventors:

John Christian Oppelt - Somerville NJ
Peter Vincent Susi - Middlesex NJ

Assignee:

American Cyanamid Company - Stamford CT

International Classification:

C07D29518
C08K 534
C08K 535
C08K 547

US Classification:

260 458NZ

Abstract:

Compounds of the formula: ##STR1## WHEREIN R. sub. 1 and R. sub. 2 are each branch-chain alkyl of 3 to 8 carbon atoms and -Het is a nitrogen-containing heterocyclic moiety attached to the carbonyl carbon atom through a heterocyclic nitrogen are useful as light stabilizers in polyolefins. They may be prepared (a) by reacting the 3,5-dialkyl-4-hydroxybenzoyl chloride with the appropriate heterocyclic amine in the presence of an acid acceptor or (b) by reacting the corresponding benzoic acid with the appropriate heterocyclic amine in the presence of a carbodiimide as dehydrating agent.