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:
Jan. 29, 1991
Filed:
Apr. 13, 1987
Applicant:
Inventors:
W Thomas Matthews, Alamo, CA (US);
H Hunter Paalman, Walnut Creek, CA (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
L08J / ;
U.S. Cl.
CPC ...
521 26 ; 528495 ; 528496 ; 528501 ;
Abstract
A process for regenerating anion exchange resins loaded with organic contaminants is described. The anion exchange capacity of loaded resins can be increased by treatment with an aqueous mixture of a strong mineral acid and an organic solvent for naphthenic acid.
Matthews, W. (1991). Process for regenerating ion exchange resins loaded with naphthenic and (U.S. Patent No. 4988737). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4988737
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile