Disclosed herein is a multiwall sheet that comprises a first wall, a second wall, an intermediate wall disposed between the first wall and the second wall, a first set of ribs disposed between the first wall and the intermediate wall, and a second set of ribs disposed between the second wall and the intermediate wall. No ribs are in direct vertical alignment so as to align from the first wall to the second wall and no ribs are on a side of the first wall opposite the intermediate wall or on a side of the second wall opposite the intermediate wall. Also disclosed is a method for making a multiwall sheet.

Title
A multiwall sheet, an article, a method of making a multiwall sheet
Application Number
200980143262
Publication Number
102439242A
Application Date
October 26, 2009
Publication Date
May 2, 2012
Inventor
Adriaansen Frans
Thiagarajan Chinniah
Agent
wu peishan bian xinqin
Assignee
Sabic Innovative Plastics Ip
IPC
E04C2/54