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:
Sep. 13, 2016
Filed:
Nov. 11, 2011
Applicants:
Markus Parusel, Messel, DE;
Guenther Dickhaut, Mannheim, DE;
Thomas Pfaff, Hemsbach, DE;
Helmut Haering, Reinheim, DE;
Michael Enders, Dieburg, DE;
Inventors:
Markus Parusel, Messel, DE;
Guenther Dickhaut, Mannheim, DE;
Thomas Pfaff, Hemsbach, DE;
Helmut Haering, Reinheim, DE;
Michael Enders, Dieburg, DE;
Assignee:
Evonik Roehm GmbH, Darmstadt, DE;
Primary Examiner:
Int. Cl.
CPC ...
B29D 11/00 (2006.01); F21V 8/00 (2006.01); B29C 47/00 (2006.01); B29C 47/16 (2006.01); B29K 33/00 (2006.01); B29L 31/34 (2006.01);
U.S. Cl.
CPC ...
G02B 6/0011 (2013.01); B29C 47/004 (2013.01); B29C 47/0021 (2013.01); B29C 47/165 (2013.01); B29D 11/00663 (2013.01); G02B 6/0065 (2013.01); B29C 47/0061 (2013.01); B29K 2033/12 (2013.01); B29K 2995/0073 (2013.01); B29L 2031/3475 (2013.01); G02B 6/0036 (2013.01);
Abstract
The present invention relates to a method for producing light guide bodies and to their use in lighting units, for example for liquid crystal displays or for monitors. In particular, the present invention relates to a method for producing light guide bodies which have a thickness of at most 1 mm and contain at least 80 wt % of polymethyl methacrylate and no light-scattering constituents.