Robert L Heffner

US Patent:

47205539, Jan 19, 1988

Filed:

Apr 14, 1986

Appl. No.:

6/851844

Inventors:

George E. Lee - Somerville NJ
Robert J. Heffner - Manville NJ

Assignee:

Hoechst-Roussel Pharmaceuticals Inc. - Somerville NJ

International Classification:

C07D20948

US Classification:

548475

Abstract:

There is described an improved method for synthesizing N-aminophthalimide from phthalimide and hydrazine wherein the reaction is conducted in a medium consisting essentially of water and alcohol at a volume ratio within the range of from 80:20 to 20:80 at a temperature within the range of from -5. degree. C. to 35. degree. C. , said alcohol being methanol, ethanol, n-propanol, iso-propanol or a mixture thereof.

US Patent:

61567124, Dec 5, 2000

Filed:

Dec 7, 1998

Appl. No.:

9/206923

Inventors:

Orum D. Stringer - Yardley PA
Robert J. Heffner - Somerset NJ
Clarence Robbins - Martinsville NJ
Barbara Thomas - Princeton NJ
Philip Gorlin - Monmouth Junction NJ

Assignee:

Colgate Palmolive Company - New York NY

International Classification:

A61K 7075
C11D 1700
C11D 1500

US Classification:

510125

Abstract:

A new class of cationic surfactants are described, wherein these cationic surfactants are an ethoxylated alkyamidoalkyldialkylammonium salt and/or an ethoxylated trialkyl ammonium salt.

US Patent:

59290242, Jul 27, 1999

Filed:

Nov 20, 1997

Appl. No.:

8/974441

Inventors:

Orum D. Stringer - Yardley PA
Robert J. Heffner - Somerset NJ
Clarence Robbins - Martinsville NJ
Barbara Thomas - Princeton NJ
Philip Gorlin - Monmouth Junction NJ

Assignee:

Colgate Palmolive Company - NY NY

International Classification:

C11D 1835
C11D 326

US Classification:

510504

Abstract:

A new class of cationic surfactants are described, wherein these cationic surfactants are an ethoxylated alkyamidoalkyldialkylammonium salt and/or an ethoxylated trialkyl ammonium salt.