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:
Sep. 08, 2015
Filed:
Sep. 30, 2011
Applicants:
Edson Rodrigues, Pirassununga, BR;
Arthur Malheiro, Araraquara, BR;
Inventors:
Edson Rodrigues, Pirassununga, BR;
Arthur Malheiro, Araraquara, BR;
Assignee:
RHODIA POLIAMIDA E ESPECIALIDADES LTDA, Sao Paulo, BR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D 317/00 (2006.01); C07D 317/20 (2006.01);
U.S. Cl.
CPC ...
C07D 317/20 (2013.01);
Abstract
A process for the production of dioxolane compounds of formula (I): wherein R1 and R2 independently represent hydrogen or an alkyl chain from 1 to 10 carbon atoms; R3 and R4 independently represent hydrogen, an alkyl chain from 1 to 5 carbon atoms, or an alkyl chain from 1 to 5 carbon atoms which is endowed with one or more hydroxyl groups, such process comprising a reaction between crude glycerol and an aldehyde or a ketone, with a molar ratio of aldehyde:glycerol or ketone:glycerol from 3:1 to 20:1.