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:
Mar. 05, 1996
Filed:
Apr. 14, 1993
Applicant:
Inventors:
Patrick M McCurry, Jr, Lansdale, PA (US);
Brian A Michel, Fairfield, OH (US);
Carl E Pickens, Fairfield, OH (US);
Janet R Varvil, Chalfont, PA (US);
Assignee:
Henkel Corporation, Plymouth Meeting, PA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07H / ; C07H / ;
U.S. Cl.
CPC ...
536 185 ; 536 186 ; 536124 ; 536127 ;
Abstract
An improved process for preparing an alkylpolyglycoside wherein the alkyl group contains about 8 to about 20 carbon atoms, prepared by reacting a saccharide and an alcohol in the presence of an acid catalyst, and subsequently removing excess unreacted alcohol, the improvement comprising adding to the reaction product an oxide, such as MgO, and removing the excess unreacted alcohol by thin film evaporation under vacuum at temperatures up to about 240.degree. C. under sparging or non-sparging condition with an inert gas.