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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10442830 B1

PDFFull Text
Date of Patent:
Oct. 15, 2019

Filed:

Dec. 03, 2015

Synthesis of monoethers of sugar comprising a long alkyl chain and uses thereof as a surfactant

Applicants:

Tereos Starch & Sweeteners Belgium, Aalst, BE;

Université Claude Bernard Lyon 1, Villeurbanne, FR;

Centre National DE LA Recherche Scientifique, Paris, FR;

Inventors:

Charlotte Gozlan, Villeurbanne, FR;

Marie-christine Duclos, Villeurbanne, FR;

Nicolas Duguet, Villeurbanne, FR;

Marc Lemaire, Villeurbanne, FR;

Andreas Redl, Aalst, BE;

Assignees:

TEREOS STARCH & SWEETENERS BELGIUM, Aalst, BE;

UNIVERSITÉ CLAUDE BERNARD LYON 1, Villeurbanne, FR;

CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Paris, FR;

Attorneys:

Symbus Law Group, LLC

Clifford D. Hyra

Primary Examiner:

Eric Olson

Int. Cl.
CPC ...
C07H 15/04 (2006.01); C07C 43/14 (2006.01); C07C 43/15 (2006.01); C07C 43/10 (2006.01); C07C 43/04 (2006.01); C07H 1/00 (2006.01); C07D 307/20 (2006.01); C11D 1/66 (2006.01); C07H 3/02 (2006.01); B01F 17/00 (2006.01); C07H 1/06 (2006.01);
U.S. Cl.
CPC ...
C07H 15/04 (2013.01); C07C 43/04 (2013.01); C07C 43/10 (2013.01); C07C 43/14 (2013.01); C07C 43/15 (2013.01); C07D 307/20 (2013.01); C07H 1/00 (2013.01); C07H 3/02 (2013.01); C11D 1/662 (2013.01); B01F 17/0021 (2013.01); C07H 1/06 (2013.01); Y02P 20/582 (2015.11);
Abstract

A process for obtaining a mixture of C4-C8 and C9-C18 alkyl monoether of saccharide, comprising: a) a first step of acetalization or trans-acetalization of a saccharide or of a mixture of saccharides with a C4-C8 aliphatic aldehyde or the acetal thereof, b) a second consecutive or simultaneous step of acetalization or trans-acetalization of the product obtained in a) of the saccharide or mixture of saccharides with a C9-C18 aliphatic aldehyde or the acetal thereof, c) a step of catalytic hydrogenolysis of the saccharide acetals obtained, and d) a step of recovery of a mixture of C4-C8 and C9-C18 alkyl saccharide monoethers. The invention further relates to a mixture of C4-C8 and C9-C18 alkyl saccharide monoethers and the use thereof as a surfactant.

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