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:
May. 07, 2013
Filed:
Sep. 20, 2011
Edward E. Lafleur, Holland, PA (US);
Luu T. Le, Glenside, PA (US);
Edwin Nungesser, Horsham, PA (US);
Edward E. LaFleur, Holland, PA (US);
Luu T. Le, Glenside, PA (US);
Edwin Nungesser, Horsham, PA (US);
Rohm and Haas Company, Philadelphia, PA (US);
Abstract
A composition comprising multistage polymeric particles having an average particle diameter from 0.5 to 15 μm and a Vicker's scale hardness from 100 to 700 Kgf/mm; and a film-forming polymer having Tno greater than 80° C. The refractive index difference measured from 400 nm to 800 nm between the polymeric particles and the film-forming polymer is no greater than 0.02 and the average refractive index difference measured from 800 nm to 2500 nm between the polymeric particles and the film-forming polymer is at least 0.04.