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:
Sep. 30, 2008
Filed:
Dec. 14, 2004
Applicants:
John C. Harrington, Jacksonville, FL (US);
Robert A. Gelman, Newark, DE (US);
K. Abraham Vaynberg, Cherry Hill, NJ (US);
Inventors:
John C. Harrington, Jacksonville, FL (US);
Robert A. Gelman, Newark, DE (US);
K. Abraham Vaynberg, Cherry Hill, NJ (US);
Assignee:
Hercules Incorporated, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 3/02 (2006.01); C08J 3/03 (2006.01); C08F 2/32 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method to invert an inverse emulsion water compatible polymer product using a combination of surfactants that have specific chemical structures is disclosed. A combination, or blend, of two or more surfactants provides for an effective breaker system. The blend of surfactants is more effective than the individual surfactants.