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. 02, 2008
Filed:
Aug. 26, 2005
Shui-jen Raymond Hsu, Westlake, OH (US);
Tina R. Dame, Brunswick, OH (US);
Prashant Patel, Stow, OH (US);
Shui-Jen Raymond Hsu, Westlake, OH (US);
Tina R. Dame, Brunswick, OH (US);
Prashant Patel, Stow, OH (US);
Lubrizol Advanced Materials, Inc., Cleveland, OH (US);
Abstract
This invention relates to waterbone coating compositions having improved compatability with metal pigments, i.e., improved shelf life and reduced gassing and gellation. The composition comprise at least one aqueous dispersion of (1) at least one emulsion copolymer polymerized from (a) at least one ethylenically unsaturated anionic monomer and (b) at least one other olefinically unsaturated monomer, said copolymer being made using at least one phosphate surfactant having at least one phosphorus acid group or salt thereof, said copolymer being crosslinked, and (2) at least one non-water soluble metal pigment. The compositions are useful in paints and other coatings.