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. 20, 2014
Filed:
Oct. 24, 2008
Applicants:
James A. Dale, Cardiff, GB;
Luc Froment, Wales, GB;
Satish Bapat, Springfield, PA (US);
Inventors:
Assignee:
The Purolite Company, Bala Cynwyd, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 67/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides methods of using a novel sulfonated resin catalyst, showing improved performance. The catalyst has reduced or partial functionalization, throughout the sulfonated region of the polymer, leading to reduced by-product formation and other desirable features. This catalyst has particular usefulness in reactions or processes sensitive to high acidity, e.g., esterification-transesterification.