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:
Apr. 14, 2009
Filed:
May. 19, 2006
Shari L. Kram, Midland, MI (US);
William B. Marshall, Midland, MI (US);
James J. O'brien, Midland, MI (US);
Todd A. Pickering, Midland, MI (US);
Weishi Wu, Midland, MI (US);
Shari L. Kram, Midland, MI (US);
William B. Marshall, Midland, MI (US);
James J. O'Brien, Midland, MI (US);
Todd A. Pickering, Midland, MI (US);
Weishi Wu, Midland, MI (US);
Dow Global Technologies Inc., Midland, MI (US);
Abstract
The present invention relates to a composition comprising a blend of a luminescent polymer and a low molecular weight (<5000 amu) viscosity modifier, which has an emission maximum in the range of 350-480 nm, contains no exocyclic double bonds, and modifies the viscosity of the polymer without substantially altering emissive properties of the neat polymer. Modification of viscosity without concomitant modification of emissive properties is desirable where the polymer is already tuned to emit at the desired wavelength.