Multilayer polymeric film

Details Multilayer polymeric film Multilayer polymeric film

B - Operations, Transporting

32

B

2/118, 18/783, 2

B32B 3/10 (2006.01) A61F 13/15 (2006.01) B29C 47/06 (2006.01) B32B 27/20 (2006.01) B32B 37/00 (2006.01)

Patent

CA 1319480

ABSTRACT OF THE DISCLOSURE A polymeric multilayer film structure having a high percentage of fillers is disclosed. The fillers are concentrated in a separate filler containing layer having about 5 to about 20 percent of the thickness of the total multilayer film. The filler containing layer is coextruded with a base layer comprising the balance of the thickness of the multilayer film. By keeping the filler containing layer thin, relative to the total film thickness, a multilayer film having a filler concentration up to about 60 weight percent is achievable without significantly adversely affecting the material properties of the multilayer film structure.

603517

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