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:
Jan. 21, 1997
Filed:
Apr. 11, 1995
Richard S Silver, Wilmette, IL (US);
Gerard L Hasenhuettl, Deerfield, IL (US);
Kraft Foods, Inc., Northfield, IL (US);
Abstract
An improved method for the preparation of polyol fatty acid polyesters via a one step reaction. A polyol-type reagent is mixed with a fatty-acid containing reagent, and an esterification catalyst to form a reaction mixture. The polyol-type reagents include polyols and saccharides having hydroxyl groups, partially-esterified polyols and saccharides having both hydroxyl groups and lower alkyl ester groups, and fully-esterified polyols and saccharides having lower alkyl ester groups. The reaction is heated to about 95.degree. to 200.degree. C. for a time sufficient for the formation of saccharide fatty acid polyester while a non-fatty acid-containing lower alkyl ester by-product or an alcohol by-product are removed from the reaction mixture by a thin film reaction techniques. The use of thin film reaction methodology provides more efficient removal of by-products and greater yields of the polyol fatty acid polyesters. The polyol fatty acid polyesters, especially sucrose fatty acid polyesters, are useful as fat substitutes or low-calorie fats in food compositions.