In one embodiment, a multiwall sheet comprises a first sheet comprising an inner surface and an outer surface, a second sheet comprising a first surface and a second surface; and a rib disposed between the inner surface and the first surface. The outer layer can have surface features and has a surface area of greater than or equal to 140% of a planar, flat, non-profiled surface area for a same unit area.

Title
MULTIWALL SHEET, AN ARTICLE, A METHOD OF MAKING A MULTIWALL SHEET
Application Number
12/277423
Publication Number
20100129609 (A1)
Application Date
November 25, 2008
Publication Date
May 27, 2010
Inventor
Praveen Bhat
Karnataka
IN
Chinniah Thiagarajan
Karnataka
IN
Agent
CANTOR COLBURN
CT, US
Assignee
SABIC INNOVATIVE PLASTICS IP
NL
IPC
B32B 3/30
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