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. 08, 1981
Filed:
Apr. 03, 1980
Henry S Makowski, deceased, late of Scotch Plains, NJ (US);
Robert D Lundberg, Bridgewater, NJ (US);
Exxon Research & Engineering Co., Florham Park, NJ (US);
Abstract
The present invention relates to a process for forming a polymeric solution or gel having a viscosity of at least about 50,000 cps which includes the steps of dissolving an amine neutralized sulfonated polymer in a solvent to form a polymeric solution, a concentration of the amine neutralized sulfonated polymer in the solution being about 0.1 to about 20 wt. %, a viscosity of the solution being less than about 20,000 cps; and adding about 1 to about 500 vol. % of an inorganic base solution to the polymeric solution having a viscosity less than about 20,000 cps, the water of the inorganic base solution being immiscible with the solvent and the polymeric solution, the viscosity of said polymeric solution increasing rapidly upon the addition of said inorganic base solution from less than 20,000 cps to greater than 50,000 cps.