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:
Oct. 18, 2016
Filed:
Jul. 02, 2014
Dow Global Technologies, Llc, Midland, MI (US);
Rohm and Haas Company, Philadelphia, PA (US);
James C. Bohling, Lansdale, PA (US);
Beth Cooper, Doylestown, PA (US);
Melinda H. Keefe, Willow Grove, PA (US);
Margo Schaefer, Chalfont, PA (US);
Rohn and Haas Company, Philadelphia, PA (US);
Dow Global Technologies LLC, Midland, MI (US);
Abstract
The present invention relates to a composition comprising a stable aqueous dispersion of large acrylic based polymer particles and small acrylic based polymer particles wherein the large polymer particles comprise structural units of a phosphorus acid monomer or a salt thereof; and wherein the small polymer particles comprise a substantial absence of structural units of any phosphorus acid monomer and salts thereof. The bimodal dispersion of the present invention provides a way of making a high solids adsorbing latex with high hiding efficiency.