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. 10, 2004
Filed:
May. 01, 2002
Christianus J. J. Maas, Rilland, NL;
Hendrik Verhoogt, Bergen Op Zoom, NL;
John Van Der Poel, Ossendrecht, NL;
Johannes Martinus Dina Goossens, Bergen Op Zoom, NL;
General Electric Company, Pittsfield, MA (US);
Abstract
Disclosed herein is a light diffusing substrate in the form of film or sheet including multi-wall sheet and a process for making such light diffusing article, wherein the article comprises a light transmitting thermoplastic resin and about 0.001 to 10 wt. parts of a polyalkyl silsesquioxane, wherein the alkyl group is selected from a methyl, a C12-C18 alkyl, hydride, phenyl, vinyl, and cyclohexyl. The light diffusing substrate is characterized as having a surface roughness expressed as a centerline average height Ra of about or less than 0.1 &mgr;m, a ten-point surface roughness Rz of about or less than 1.0 &mgr;m, and a maximum height surface roughness Rmax of about or less than 1.0 &mgr;m.