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:
Nov. 11, 2014
Filed:
Aug. 29, 2012
Monica Luckenbach, Woxall, PA (US);
Ozzie M. Pressley, Cheltenham, PA (US);
Wei Zhang, Maple Glen, PA (US);
Monica Luckenbach, Woxall, PA (US);
Ozzie M. Pressley, Cheltenham, PA (US);
Wei Zhang, Maple Glen, PA (US);
Rohm and Haas Company, Philadelphia, PA (US);
Abstract
The present invention relates to a soluble shell polymer composition comprising an alkali soluble emulsion polymer shell and an alkali insoluble emulsion polymer core, which composition is stabilized by a surfactant of the formula R—(OCHCH)OSOM, where R is a linear, branched, or cyclic C-Calkyl or C-Caralkyl group and Mis a counterion. The invention further relates to a method of preparing the composition and its use as a binder in coatings formulations. Formulations prepared with the soluble shell polymer composition have excellent freeze-thaw profiles and hiding.