In one embodiment, a multiwall sheet comprises: non-intersecting polymer walls comprising outer layers and transverse layers. The transverse layers intersect the walls to form cells. The multiwall sheet has a non-uniform cell density. In another embodiment, a multiwall sheet can comprise: non-intersecting polymer walls comprising outer layers and a transverse layer and/or a divider. The transverse layer and/or the divider extends from one of the polymer walls to another of the polymer walls to form cells. The multiwall sheet has a non-uniform cell density. In yet another embodiment, a multiwall sheet comprises: non-intersecting polymer walls comprising outer layers and transverse layers. The transverse layers intersect the walls to form cells. The multiwall sheet has a different number of inner layers, transverse layers, and/or dividers, in different portions of the sheet. The multiwall sheets can be used, for example, in a naturally light structure.

Title
Multiwall Polymer Sheet, and Methods for Making and Articles Using the Same
Application Number
11/668732
Publication Number
20080182047
Application Date
January 30, 2007
Publication Date
July 31, 2008
Inventor
Eelco van Hamersveld
Frans Adriaansen
Chinniah Thiagarajan
Agent
Cantor Colburn
CT, US
IPC
B29C 47/06
E06B 03/30
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