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:
Aug. 25, 2009
Filed:
Jun. 22, 2005
Applicant:
Ward Thomas Brown, North Wales, PA (US);
Inventor:
Ward Thomas Brown, North Wales, PA (US);
Assignee:
Rohm and Haas Company, Philadelphia, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K 9/06 (2006.01); B32B 5/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
An opacifying particle including a pigment particle having an average particle diameter of from 0.005 to 5 microns and an index of refraction of at least 1.8; a first polymer attached to the surface of the pigment particle via a silane residue; and a second polymer which substantially encapsulates the pigment particle having the attached first polymer is provided. Also provided is a method for forming the opacifying particle as is a coating composition and a plastic composition including the opacifying particle.