A gypsum wallboard having a core with a central core layer and one or more densified layers is disclosed. At least one densified layer contains salt absorbent particles of zeolite and/or hydrotalcite to improve adhesion of the gypsum core to a cover sheet. Also, methods of making the gypsum wallboard and a wall system for employing the gypsum wallboard are disclosed.

The current invention concerns coverings such as a floor covering, wall covering or ceiling covering, said covering comprising at least one substrate and at least one surface layer, said surface layer comprising a print pattern and a wear layer, whereby said print pattern is directly applied to said substrate, and further concerns a method to produce such coverings.

The current invention concerns coverings such as a floor covering, wall covering or ceiling covering, said covering comprising at least one substrate and at least one surface layer, said surface layer comprising a print pattern and a wear layer, whereby said print pattern is directly applied to said substrate, and further concerns a method to produce such coverings.

A wood or engineered wood structural panel, such as, but not limited to, OSB (“oriented strand board”) or plywood, that is both fire-resistant and water resistant. The panel is factory-coated with a product that provides fire resistance. The treatment gives it a Fire-Resistant (FR) performance (for use in a one- or two-hour rated assembly). The panel also is overlaid or coated in a factory setting with a weather/water resistive barrier (WRB). The structural panel thus combines a fire-resistant structural sheathing and WRB product in one integrated panel produced at a factory prior for installation at a job site.

A wood or engineered wood structural panel, such as, but not limited to, OSB (“oriented strand board”) or plywood, that is both fire-resistant and water resistant. The panel is factory-coated with a product that provides fire resistance. The treatment gives it a Fire-Resistant (FR) performance (for use in a one- or two-hour rated assembly). The panel also is overlaid or coated in a factory setting with a weather/water resistive barrier (WRB). The structural panel thus combines a fire-resistant structural sheathing and WRB product in one integrated panel produced at a factory prior for installation at a job site.

A roofing membrane and a method of making the same is provided. The roofing membrane includes a top layer having a flame retardant and a first silane-crosslinked polyolefin elastomer with a density less than 0.90 g/cm.sup.3; a scrim layer; and a bottom layer having a flame retardant and a second silane-crosslinked polyolefin elastomer with a density less than 0.90 g/cm.sup.3. The top and bottom layers of the roofing membrane both exhibit a compression set of from about 5.0% to about 35.0%, as measured according to ASTM D 395 (22 hrs @ 70° C.).

A roofing membrane and a method of making the same is provided. The roofing membrane includes a top layer having a flame retardant and a first silane-crosslinked polyolefin elastomer with a density less than 0.90 g/cm.sup.3; a scrim layer; and a bottom layer having a flame retardant and a second silane-crosslinked polyolefin elastomer with a density less than 0.90 g/cm.sup.3. The top and bottom layers of the roofing membrane both exhibit a compression set of from about 5.0% to about 35.0%, as measured according to ASTM D 395 (22 hrs @ 70° C.).

A novel multilayer plastic film is provided comprising a series of component layers and optionally bonding layers to tie said component layers together, said component layers comprising: a central oxygen barrier layer, a first polymeric barrier layer on a first side of said central oxygen barrier layer, a second polymeric barrier layer on a second side of said central oxygen barrier layer, an outer layer adjacent the first polymeric barrier layer for providing mechanical strength, and a sealant layer adjacent the second polymeric barrier layer. At least one layer comprises two different polymers.

A lightning strike dispersion structure may include a composite component having an outboard surface, wherein the composite component is electrically nonconductive. The lightning strike dispersion structure may include a metal sheet coupled to and extending across a minority portion of the outboard surface of the composite component, wherein the metal sheet is electrically conductive. The lightning strike dispersion structure may also include a metal stud coupled to and in electrical contact with the metal sheet, the metal stud extending completely through the composite component, wherein the metal stud is electrically conductive.

A lightning strike dispersion structure may include a composite component having an outboard surface, wherein the composite component is electrically nonconductive. The lightning strike dispersion structure may include a metal sheet coupled to and extending across a minority portion of the outboard surface of the composite component, wherein the metal sheet is electrically conductive. The lightning strike dispersion structure may also include a metal stud coupled to and in electrical contact with the metal sheet, the metal stud extending completely through the composite component, wherein the metal stud is electrically conductive.