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. 04, 1990
Filed:
Oct. 22, 1987
Marie-Christine P Leblanc, Saint Cloud, FR;
Josiane A Durrieu, Chatou, FR;
Jean-Pierre P Binon, Saint Raphael, FR;
Gerard G Provin, Ezanville, FR;
Jean-Jacques Fery, Bar le Duc, FR;
Total Compagnie Francaise des Petroles, Paris, FR;
Etablissements VASSET, Ezanville, FR;
Abstract
Process for treating an aqueous solution of acrylamide resin, characterized in that an emulsifier which is preferably nonionic or anionic, a solution of initiator comprising an organic peroxide, preferably a diperoxide, and optionally a solution of a retarder preferably consisting of a phenol derivative or an alkali metal inorganic derivative are added slowly and with stirring, preferably in the form of a pre-emulsion, to an aqueous solution of acrylamide resin monomer.