Ephraim L Kelly

US Patent:

57236739, Mar 3, 1998

Filed:

Jun 7, 1995

Appl. No.:

8/474857

Inventors:

Junan Kao - Kobe, JP
Ephraim Lamar Kelly - Batavia OH
Vicki Lynn Weber - Cincinnati OH
Michael Steven Gibson - Loveland OH
Donald Benjamin Appleby - Cincinnati OH
Joseph Fredrich Sherman - Cincinnati OH
Ronald Edward Pegoli - Batavia OH
Mary Celine Schneider - Batavia OH
Terry Franklin Formyduval - Cincinnati OH
Larry Nelson Hawkins - Cincinnati OH

Assignee:

The Procter & Gamble Company - Cincinnati OH

International Classification:

C07H20944

US Classification:

564487

Abstract:

N-alkyl polyhydroxy alkyl amines such as N-methyl glucamine having a Gardner Color of less than 1 are reacted with sources of fatty acyl groups such as methyl esters, anhydrides, and/or fatty acids that have greater than 98% transmittance at 460 nm in organic hydroxy solvents such as methanol to prepare N-alkyl polyhydroxy amine amides with good color. The N-alkyl polyhydroxyamines can be purified by crystallization, and/or subjected to reductive bleaching, to provide superior color. The reaction is preferably carried out at low temperature for short periods of time and with low catalyst levels to minimize formation of cyclic products. The resulting amide product can be further purified by treatment with anionic and cationic exchange resins to remove soap and amine impurities. The anionic ion exchange resin can be readily regenerated by acidifying it followed by washing with an organic solvent.

US Patent:

57771650, Jul 7, 1998

Filed:

Jun 7, 1995

Appl. No.:

8/474858

Inventors:

Junan Kao - Kobe, JP
Ephraim Lamar Kelly - Batavia OH
Vicki Lynn Weber - Cincinnati OH
Michael Steven Gibson - Loveland OH
Donald Benjamin Appleby - Cincinnati OH
Joseph Fredrich Sherman - Cincinnati OH
Ronald Edward Pegoli - Batavia OH
Mary Celine Schneider - Batavia OH
Terry Franklin Formyduval - Cincinnati OH
Larry Nelson Hawkins - Cincinnati OH

Assignee:

The Procter & Gamble Company - Cincinnati OH

International Classification:

C07C20900

US Classification:

564487

Abstract:

N-alkyl polyhydroxy alkyl amines such as N-methyl glucamine having a Gardner Color of less than 1 are reacted with sources of fatty acyl groups such as methyl esters, anhydrides, and/or fatty acids that have greater than 98% transmittance at 460 nm in organic hydroxy solvents such as methanol to prepare N-alkyl polyhydroxy amine amides with good color. The N-alkyl polyhydroxyamines can be purified by crystallization, and/or subjected to reductive bleaching, to provide superior color. The reaction is preferably carried out at low temperature for short periods of time and with low catalyst levels to minimize formation of cyclic products. The resulting amide product can be further purified by treatment with anionic and cationic exchange resins to remove soap and amine impurities. The anionic ion exchange resin can be readily regenerated by acidifying it followed by washing with an organic solvent.