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:
Jul. 19, 2016
Filed:
Jul. 23, 2014
Oxea Bishop Llc, Dallas, TX (US);
Heinz Strutz, Moers, DE;
Donald K. Raff, Waynesville, NC (US);
Guido D. Frey, Mülheim, DE;
Norman Nowotny, Essen, DE;
Marcos Schroeder, Andover, KS (US);
Fred Gaytan, Kingsville, TX (US);
Tracy Kevin Hung, Corpus Christi, TX (US);
William E. Slinkard, Richmond, TX (US);
OXEA BISHOP LLC, Dallas, TX (US);
Abstract
A multistage tubular reaction system and method for preparing methylol derivatives of an aldehyde includes a tubular reaction system with a plurality of successive reactor stages provided with a formaldehyde containing feed stream. The system includes multiple feed ports for the staged addition of Cor higher condensible aldehyde and/or base to the formaldehyde containing stream at a plurality of successive feed points to provide a production stream, which is progressively provided with additional reactants as the production stream advances through the successive reaction stages. Advantages include better temperature control and reduced byproduct formation.