| US 7,614,186 B2 | ||
| Multiwall polymer sheet with cells having liquid affecting solar and light transmission | ||
| Chris Maas, Rilland (Netherlands); Michel van Acht, Breda (Netherlands); Fred Bartelen, Hoogerheide (Netherlands); and Jos Dekkers, Breda (Netherlands) | ||
| Assigned to Sabic Innovative Plastics IP B.V., (Netherlands) | ||
| Filed on Nov. 09, 2006, as Appl. No. 11/558,057. | ||
| Prior Publication US 2008/0110108 A1, May 15, 2008 | ||
| Int. Cl. E04C 2/54 (2006.01) | ||
| U.S. Cl. 52—171.3 [52/784.14; 52/786.1; 52/788.1] | 28 Claims |
| 1. A multiwall sheet, comprising:
greater than or equal to three non-intersecting polymer walls;
a transverse layer, wherein the transverse layer intersects the walls forming cells; and
a liquid located in the cells;
wherein the multiwall sheet has a first visible light transmission and a first direct solar transmission;
wherein a second multiwall sheet has a same material and a same design as the multiwall sheet except comprises no liquid,
and has a second visible light transmission;
wherein the first visible light transmission is greater than the second visible light transmission and the first direct solar
transmission is about 63% to about 70% as determined in accordance with ISO 9050, second edition, Aug. 15, 2003 (reference
number ISO 9050:2003(e)) with a perpendicular measurement; and
wherein the liquid has a liquid refractive index and the polymer walls have a polymer refractive index, and wherein the liquid
refractive index is different than the polymer refractive index.
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