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:
Oct. 29, 2013
Filed:
Nov. 12, 2007
Applicants:
Christianus Johannes Jacobus Maas, Rilland, NL;
Johann Wagner, Hinterbrühl, AT;
Inventors:
Christianus Johannes Jacobus Maas, Rilland, NL;
Johann Wagner, Hinterbrühl, AT;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 3/20 (2006.01); B32B 7/00 (2006.01); E04C 2/34 (2006.01); D01D 5/24 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed herein are multiwall sheets and methods for making the same. In one embodiment, a multiwall sheet comprises: main layers and transverse walls. The multiwall sheet comprises: a total thickness of greater than or equal to about 45 mm, a weight of greater than or equal to about 4.5 kg/m, and/or greater than or equal to about 8 cells and a U-value of less than or equal to about 1.2 W/mK. The multiwall sheet further comprises greater than 75 wt % branched polycarbonate resin, based upon a total weight of the multiwall sheet.