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:
Apr. 12, 1994
Filed:
Mar. 02, 1993
Yog R Dhingra, Midland, MI (US);
Paul R VanTol, Essexville, MI (US);
The Dow Chemical Company, Midland, MI (US);
Abstract
Cation-exchange resins are provided which have improved resistance to copolymer degradation caused by oxidizing agents like molecular oxygen. The resins are prepared by incorporating a para-substituted styrenic monomer having an oxidation-stabilizing moiety in a position para to a polymerizable vinyl moiety. These cation-exchange resins can be used in separation processes for longer periods of time without detrimental increases in bed pressure drops, loss of operating capacity, or leaching of organic contaminants.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile