Cementitious panels with polymeric-film facing material
AssigneeGold Bond Building Products, LLC
InventorsBradley J. Busche, Ma-Ikay Miatudila, Brian G. Randall, Joseph J. Bailey
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Abstract
Provided are cementitious panels that include a cementitious core material and a plurality of sheets of facing material surrounding the cementitious core material, in which at least one of the plurality of sheets of facing material includes a polymeric-film. The polymeric film may include a thermoplastic composition that has a polymeric matrix including one or more polymeric materials. Additionally, the thermoplastic composition may optionally include a filler material. Additionally, provided are methods of manufacturing such cementitious panels.
Claims22
A cementitious panel, comprising:
- a cementitious core material;
- a plurality of sheets of facing material sandwiching the cementitious core material, the plurality of sheets of facing material comprising a first sheet of facing material and a second sheet of facing material;
- wherein the first sheet of facing material and/or the second sheet of facing material comprises a polymeric-film, the polymeric-film being pervious to water vapor and gases, the polymeric-film containing a thermoplastic composition comprising a polymeric matrix comprising one or more polymeric materials and a filler material, the filler material being dispersed in the polymer matrix, the polymer matrix comprising a network of interconnected pores, the polymer matrix comprising a matrix polymer, wherein the matrix polymer comprises a polyolefin.
A cementitious panel, comprising:
- a cementitious core material;
- a plurality of sheets of facing material sandwiching the cementitious core material, the plurality of sheets of facing material comprising a first sheet of facing material and a second sheet of facing material;
- wherein the first sheet of facing material and/or the second sheet of facing material comprises a polymeric-film, the polymeric-film having a thickness from 0.5 μm to 500 μm, the polymeric-film being pervious to water vapor and gases, the polymeric-film containing a thermoplastic composition comprising a polymeric matrix comprising one or more polymeric materials and a filler material, the filler material being dispersed in the polymer matrix, the polymer matrix comprising a network of interconnected pores, the polymer matrix comprising a matrix polymer, wherein the matrix polymer comprises a polyolefin.
Dependencies are inferred from the claim text.