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. 29, 2009
Filed:
May. 02, 2007
Douglas S. Cinoman, Douglassville, PA (US);
Andrew T. Daly, Sinking Spring, PA (US);
Gordon L. Tullos, Reading, PA (US);
Douglas S. Cinoman, Douglassville, PA (US);
Andrew T. Daly, Sinking Spring, PA (US);
Gordon L. Tullos, Reading, PA (US);
Rohm and Haas Company, Philadelphia, PA (US);
Abstract
The present invention provides storage stable powder compositions comprising one or more carboxylic acid or anhydride functional, phosphorus-containing polyester chosen from aromatic polyesters having an acid number of 15 or higher mg KOH/g polyester, aliphatic polyesters having an acid number of 20 or higher mg KOH/g polyester. The acid functional, phosphorus-containing polyester comprises the reaction product of one or more polyacid, one or more phosphorus-containing acid or salt thereof and one or more polyol. Preferably, the one or more polyol reactant contains no β-hydrogen such as, for example, neopentyl glycol (NPG). The acid functional, phosphorus-containing polyester may comprise all or part of a binder powder composition, such as a coating powder, or it may comprise an additive thereto that imparts improved pigment wetting and corrosion resistance to a binder composition.