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:
Aug. 22, 1978
Filed:
Aug. 25, 1977
Applicant:
Inventor:
Harry Bugbird Copelin, Wilmington, DE (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
2603407 ;
Abstract
A process for preparing an acetal from acrolein and a 1,3-diol whereby substantially complete conversion of the acrolein to acetal is attained, by simultaneously reacting and separating by extraction the acetal and water formed from said diol and acrolein reaction, said process comprising continuously feeding a 1,3-diol and an acid catalyst countercurrent to a solvent while continuously feeding acrolein to the solvent and diol, separating the acetal-solvent from the diol-water, optionally separating the acetal and solvent and optionally separating the diol and water.