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. 24, 1998
Filed:
Jan. 27, 1997
Applicant:
Inventors:
Kenneth L Foster, Midland, MI (US);
Natalie N Westphal, Saginaw, MI (US);
Suresh Subramonian, Midland, MI (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
521 33 ; 521 30 ; 521 38 ; 525343 ; 525344 ; 525353 ; 525354 ;
Abstract
Cation exchange resins are prepared by sulfonating copolymer beads in the presence of a swelling solvent under pressure. Pressure sulfonation shortens cycle times and requires less energy while maintaining or improving product quality.
Foster, Kenneth. (1998). Manufacture of cation exchange resins by pressurized sulfonation (U.S. Patent No. 5721279). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5721279
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile