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:
Jun. 21, 2016
Filed:
Nov. 10, 2011
Applicants:
Pascal Metivier, Shanghai, CN;
Yan Zhao, Shanghai, CN;
Zhaoyu Fan, Shanghai, CN;
Chenjiang Zhu, Shanghai, CN;
Inventors:
Pascal Metivier, Shanghai, CN;
Yan Zhao, Shanghai, CN;
Zhaoyu Fan, Shanghai, CN;
Chenjiang Zhu, Shanghai, CN;
Assignee:
Rhodia Operations, Aubervillers, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D 327/10 (2006.01);
U.S. Cl.
CPC ...
C07D 327/10 (2013.01);
Abstract
The present invention relates to novel cyclic sulphates of (poly)glycerol, particularly to the novel compound of 4-(hydroxymethyl)-1,3,2-dioxathiolane-2,2-dioxide. The present invention also relates to the preparation process of the cyclic sulphate compounds, and to the use thereof as an intermediate to prepare green surfactants containing sulphate groups.