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 7884203 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 08, 2011

Filed:

Jun. 28, 2006
Applicants:

Fei Wang, Nanjing, CN;

Haibing He, Nanjing, CN;

Xin Yang, Nanjing, CN;

Yongzhu Yu, Nanjing, CN;

Zhisong Fan, Nanjing, CN;

Inventors:

Fei Wang, Nanjing, CN;

Haibing He, Nanjing, CN;

Xin Yang, Nanjing, CN;

Yongzhu Yu, Nanjing, CN;

Zhisong Fan, Nanjing, CN;

Assignee:

JK Sucralose Inc., Sheyang County, Jiangsu, CN;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07H 5/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

The invention discloses a method for improving the yield of sucralose, including reacting sucrose to produce sucrose-6-acetate in the existence of an azo reagent as a catalyst and acetic acid as an acylating agent in a proper solvent; then reacting sucrose-6-acetate with a proper chlorinating agent to produce sucralose-6-acetate in a non-proton polar solvent with TCA as a catalyst; and at last, alcoholyzing sucralose-6-acetate in KOH/methanol to obtain sucralose.


Find Patent Forward Citations

Wang, Fei. (2011). Method of sucralose synthesis yield (U.S. Patent No. 7884203). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7884203

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