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:
Mar. 14, 2000
Filed:
Jun. 04, 1996
Applicant:
Inventor:
Michael Stephen Ryan, Fairfield, CT (US);
Assignee:
Cytec Technology Corp., Wilmington, DE (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08J / ;
U.S. Cl.
CPC ...
524815 ; 210733 ; 210734 ; 524555 ; 524812 ; 524801 ; 524827 ;
Abstract
Inverse microemulsions having a Standard Viscosity of at least about 3.3 cps are disclosed which comprise an aqueous phase of dispersed micelles containing water and an (alk)acrylamide-based polymer substituted with at least 1 mole percent of quaternized tertiary aminomethyl groups, wherein said microemulsion is derived from a microemulsion containing greater than about 20 percent, by weight, and less than about 40 percent, by weight, of aqueous phase polymer solids, based on said microemulsion. A method of making said microemulsions and use thereof to dewater dispersions of suspended solids are also taught.