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.:
Date of Patent:
Apr. 27, 1993
Filed:
Oct. 28, 1991
Applicant:
Inventor:
Stefan Schmidt, Recklinghausen, DE;
Assignee:
Huels Aktiengesellschaft, Marl, DE;
Primary Examiner:
Int. Cl.
CPC ...
C07H / ; C07H / ; C07G / ;
U.S. Cl.
CPC ...
536 186 ; 536124 ;
Abstract
Alkyl glycosides and alkyl polyglycosides are prepared by reacting saccharides and alcohols having 12 to 20 C atoms by acid catalysis in the presence of sodium hypophosphite and up to 1.3% by water, relative to the total of saccharides and alcohols, the molar ratio of saccharide to alcohol ranging from 1:5 to 1:10; and, after reaction is complete, neutralizing the reaction medium with an alkali metal hydroxide dissolved in an alcohol having 1 to 4 C atoms.