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. 09, 2010
Filed:
Feb. 26, 2007
Shang-jaw Chiou, Lower Gwynedd, PA (US);
Bradley K. Hageman, Pottstown, PA (US);
Joseph M. Hoefler, Bensalem, PA (US);
Ari K. Kar, Warrington, PA (US);
Edwin H. Nungesser, Horsham, PA (US);
John D. Whiteman, Churchville, PA (US);
Dianzhi Yang, Shanghai, CN;
Shang-Jaw Chiou, Lower Gwynedd, PA (US);
Bradley K. Hageman, Pottstown, PA (US);
Joseph M. Hoefler, Bensalem, PA (US);
Ari K. Kar, Warrington, PA (US);
Edwin H. Nungesser, Horsham, PA (US);
John D. Whiteman, Churchville, PA (US);
Dianzhi Yang, Shanghai, CN;
Rohm and Haas Company, Phila., PA (US);
Abstract
The present invention provides aqueous matte coating compositions comprising a binder component B) and a polymeric duller component A) composed of particles of one or more multi-stage copolymer or single stage crosslinked (co)polymer, e.g. crosslinked t-butyl (meth)acrylate, the duller component particles A) having an average diameter of 1-20 μm. Components A) and B) are compatible. Preferably, the duller component A) is acrylic; more preferably, components A) and B) are acrylic. The aqueous compositions provide matte coatings having haptic or feel (soft touch) properties, film and appearance properties, including burnish resistance and low color loss.