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:
Feb. 13, 2018
Filed:
Nov. 03, 2016
Applicant:
The Procter & Gamble Company, Cincinnati, OH (US);
Inventors:
Dimitris Ioannis Collias, Mason, OH (US);
Jane Ellen Godlewski, Loveland, OH (US);
Juan Esteban Velasquez, Cincinnati, OH (US);
Assignee:
The Procter & Gamble Company, Cincinnati, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07B 35/00 (2006.01); C07C 51/377 (2006.01); B01J 27/18 (2006.01);
U.S. Cl.
CPC ...
C07C 51/377 (2013.01); B01J 27/1802 (2013.01);
Abstract
Methods for making acrylic acid, acrylic acid derivatives, or mixtures thereof by contacting a stream containing hydroxypropionic acid, hydroxypropionic acid derivatives, or mixtures thereof with either an active catalyst containing an amorphous and partially-dehydrated phosphate salt or a precursor catalyst containing a crystalline phosphate salt in a reactor with a low corrosion rate are provided.