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:
Dec. 06, 1988
Filed:
Sep. 18, 1986
Walter L Vaughn, Lake Jackson, TX (US);
Marinda L Wu, San Ramon, CA (US);
The Dow Chemical Company, Midland, MI (US);
Abstract
The invention relates to improved gas separation membranes fabricated from a polymer containing a hydrocarbon backbone and pendant metal ionomer groups wherein the pendant metal ionomer groups contain cations of alkali metals, alkaline earth metals, or transition metals bound to pendant --CO.sub.2.sup.-. The metal modified membranes result in improved gas selectivities with comparable or improved permeabilities over the unmodified membranes. The membranes may be used to separate gas mixtures such as carbon dioxide and methane or oxygen and nitrogen.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile