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:
May. 13, 2014
Filed:
Apr. 27, 2009
Edward D. Daugs, Midland, MI (US);
Derrick W. Flick, Midland, MI (US);
Cynthia L. Rand, Sanford, MI (US);
Michael L. Tulchinsky, Midland, MI (US);
Wanglin Yu, Midland, MI (US);
Edward D. Daugs, Midland, MI (US);
Derrick W. Flick, Midland, MI (US);
Cynthia L. Rand, Sanford, MI (US);
Michael L. Tulchinsky, Midland, MI (US);
Wanglin Yu, Midland, MI (US);
Dow Global Technologies LLC, Midland, MI (US);
Abstract
The invention relates to processes for the etherification of olefins with alcohols. According to one aspect, a heterogeneous etherification catalyst is used under conditions that permit limiting the contact time between the desired product and the catalyst, thereby mitigation reverse reactions. According to a second aspect, a recycling process is used that significantly increases the yield of desired product.