Webbed multiple sheets

Details Webbed multiple sheets Webbed multiple sheets

B - Operations, Transporting

32

B

18/783

B32B 3/26 (2006.01) B29C 47/00 (2006.01) B29C 47/04 (2006.01) B29C 47/20 (2006.01) B29C 49/00 (2006.01) B29C 51/00 (2006.01) B32B 3/12 (2006.01) E04C 2/34 (2006.01) E04C 2/54 (2006.01)

Patent

CA 1223418

ABSTRACT OF THE DISCLOSURE Webbed multiple sheets comprising two substantially parallel, substantially plane polymethylmethacrylate outer layers and at least one center layer between said outer layers, wherein said outer layers and said center layer are bonded together into one piece by webs and wherein said center layer or layers comprise a thermoplastic material having increased tenacity, increased zero viscosity or a combination thereof in molten condition as compared with the material of said outer layers, thereby reducing sagging of said center layer or layers during extrusion.

436235

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