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. 25, 2018
Filed:
May. 29, 2012
Kathleen A. Auld, Collegeville, PA (US);
Ward T. Brown, North Wales, PA (US);
Kevin J. Henderson, Phoenixville, PA (US);
Anurima Singh, Midland, MI (US);
Antony K. Van Dyk, Blue Bell, PA (US);
Lidaris San Miguel Rivera, Midland, MI (US);
Kathleen A. Auld, Collegeville, PA (US);
Ward T. Brown, North Wales, PA (US);
Kevin J. Henderson, Phoenixville, PA (US);
Anurima Singh, Midland, MI (US);
Antony K. Van Dyk, Blue Bell, PA (US);
Lidaris San Miguel Rivera, Midland, MI (US);
Rohm and Haas Company, Philadelphia, PA (US);
Dow Global Technologies LLC, Midland, MI (US);
Abstract
The present invention relates to a composition comprising an amphoteric polymer having pendant acid groups, or salts thereof, and pendant mono- or dialkylamino ethylene oxide groups or alkylammonium ethylene oxide groups characterized by either of the following formulas: where R-Rand Xare as defined herein. The composition of the present invention improves hiding efficiency for coating compositions formulated using associative rheology modifiers, binders, and titanium dioxide.