Composite sheathing material having high water vapor permeability
AssigneeK2, Inc.
InventorMohamed A. Fahmy
Life of this patent
Estimating the term…
Abstract
A composite sheathing material comprises a first layer of paperboard having a layer of a permeable resin on a surface thereof, a core layer of paperboard, a first adhesive layer positioned intermediate and adhered to the first layer of paperboard and the core layer of paperboard, said first adhesive layer including a plurality of apertures therethrough, a second layer of paperboard having a second layer of a permeable resin on a surface thereof, and a second adhesive layer positioned intermediate and adhered to the second layer of paperboard and the core layer of paperboard, said second adhesive layer including a plurality of apertures therethrough.
Claims18
A composite sheathing material, comprising:
- a first layer of paperboard, having a first layer of a permeable resin on a surface thereof;
- a core layer of paperboard;
- a first adhesive layer positioned intermediate and adhered to the first layer of paperboard and the core layer of paperboard, said first adhesive layer including a plurality of apertures therethrough;
- a second layer of paperboard, having a second layer of permeable resin on a surface thereof;
- and
- a second adhesive layer positioned intermediate and adhered to the second layer of paperboard and the core layer of paperboard, said second adhesive layer including a plurality of apertures therethrough.
A composite sheathing material, comprising:
- a first layer of kraft paperboard, having a first layer of a permeable resin on the surface thereof, said first layer of kraft paperboard having a thickness ranging from about 0.003 inch to about 0.2 inch, said first layer of permeable resin comprising a polyester, polyurethane, acrylic polymer, polyether, ester-ether copolymer, or a blend or copolymer thereof, said first layer of permeable resin having a thickness ranging from about 0.0002 inch to about 0.005 inch;
- a core layer of kraft paperboard, having a thickness ranging from about 0.003 inch to about 0.2 inch;
- a first adhesive layer positioned intermediate and adhered to the first layer of paperboard and the core layer of paperboard, said first adhesive layer comprising a polyvinyl alcohol, acrylic, thermoplastic hot melt, urea or melamine formaldehyde resin, phenolic, or a blend or copolymer thereof, said first adhesive layer having a thickness ranging from about 0.001 inch to about 0.01 inch, said first adhesive layer including a plurality of apertures therethrough;
- a second layer of kraft paperboard, having a second layer of a permeable resin on a surface thereof, said second layer of kraft paperboard having a thickness ranging from about 0.003 inch to about 0.2 inch, said second layer of permeable resin comprising a polyester, polyurethane, acrylic polymer, polyether, ester-ether copolymer, or a blend or copolymer thereof, said second layer of permeable resin having a thickness ranging from about 0.0002 inch to about 0.005 inch;
- and
- a second adhesive layer positioned intermediate and adhered to the second layer of kraft paperboard and the core layer of kraft paperboard, said second adhesive layer comprising a polyvinyl alcohol, acrylic, thermoplastic hot melt, urea or melamine formaldehyde resin, phenolic, or a blend or copolymer thereof, said second adhesive layer having a thickness ranging from about 0.001 inch to about 0.01 inch, said second adhesive layer including a plurality of apertures therethrough.
Dependencies are inferred from the claim text.