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. 08, 2009
Filed:
Aug. 21, 2006
James Keith Bardman, Green Lane, PA (US);
Robert Mitchell Blankenship, Harleysville, PA (US);
John Michael Friel, Warminster, PA (US);
James Keith Bardman, Green Lane, PA (US);
Robert Mitchell Blankenship, Harleysville, PA (US);
John Michael Friel, Warminster, PA (US);
Rohm and Haas Company, Philadelphia, PA (US);
Abstract
An aqueous dispersion of polymeric particles and process for forming thereof is provided. The particles comprise a first polymer comprising, as polymerized units, at least one monoethylenically unsaturated monomer and at least one multi-ethylenically unsaturated monomer and when dry, at least one void; and at least one second polymer, substantially encapsulating the first polymer, comprising, as polymerized units, at least one ethylenically unsaturated monomer.