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 surface 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
A multiwall sheet, an article, a method of making a multiwall sheet
Application Number
200980146952
Publication Number
102224306A
Application Date
November 5, 2009
Publication Date
October 19, 2011
Inventor
Bhat Praveen
Thiagarajan Chinniah
Agent
wu peishan bian xinqin
Assignee
Sabic Innovative Plastics Ip
IPC
E06B3/67
E04C2/54
E04C2/34
E04C2/32