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:
Aug. 21, 1990
Filed:
Oct. 03, 1989
Applicant:
Inventors:
Anthony J Dias, Linden, NJ (US);
Joseph A Olkusz, Fanwood, NJ (US);
Assignee:
Exxon Chemical Patents Inc., Linden, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
525340 ; 5253328 ; 5253329 ; 5253331 ; 5253332 ; 5253333 ; 5253336 ; 5253591 ; 525366 ; 525370 ; 525379 ;
Abstract
A method for preparing functionalized polymers formed by anionic polymerization, e.g., polystyrene, polyisoprene, etc., generally comprising the steps of conducting anionic polymerization, contacting the polymer so formed with CO.sub.2 in the presence of a polar diluent, then conducting an ion-exchange reaction between the carbonated polymer product and a hydrocarbon soluble salt.
Quick Actions:
Dias, Anthony. (1990). Ion-exchange reactions for polymeric alkali metal carboxylates (U.S. Patent No. 4950721). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4950721
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile