摘要:
A gypsum-containing panel and a method of making it are disclosed including at least one facing layer having a first polymer that is reinforced with reinforcing fibers and a gypsum core that has a second polymer in a second polymer matrix interwoven with a gypsum matrix. The first polymer in the facing layer and said second polymer matrix in said gypsum core form a continuous polymer matrix, and can be the same polymer material.
摘要:
A coating method for gypsum board having a surface gypsum layer in which a polymer additive has been entrained including forming a gypsum board including the polymer additive entrained in a surface layer, application of a preferably acrylic primary coating, curing and drying the gypsum board, passing the gypsum board through a first roll coater wherein a second fluid coating is deposited over the primary layer of the dried, coated gypsum board in which the polymer additive has been entrained, the coating then being dried and cured, wherein the coating material of the primary coating forms a chemical bond with the polymer additive entrained in the surface layer of the gypsum board and the polymer of the primary coating forms a chemical bond with the second fluid coating. A coating material which can form copolymer bonds with the second coating is then deposited on the second coating and then dried and cured, resulting in coated gypsum board having a low surface tension surface that is essentially impermeable to water and vapor or moisture penetration.
摘要:
A method of manufacture of multilayer gypsum board, and a gypsum additive delivery system, including wet gypsum board passing through a board forming station in which additives are delivered to one or more layers of a multi layered gypsum board panels, such as engineered polymers, providing a better and more water resistance surface. Preferably, the gypsum board has a first layer of a mixture of set gypsum having an outer surface and a polymeric compound or wax emulsion additive entrained therein and impregnated in a thin sheet of randomly aligned inorganic fibers to essentially encase the core gypsum within two facing layers.
摘要:
Disclosed is a gypsum board forming device which provides improved slurry spread. The device includes a forming table with an arcuate or angled profile that promotes a uniform slurry spread. An arcuate or angled hinge plate can also be included to further promote the uniform distribution of slurry prior to an extrusion plate. As a result of the improved slurry spread, gypsum board with increased strength and durability can be created.
摘要:
A multilayer gypsum board forming device, and a gypsum additive delivery system in which additives are delivered to one or more layers of a multi layered gypsum board panels, including engineered polymers, includes at least one additive assembly connected in-line with a first gypsum delivery receptacle for providing an additive fluid feed into the stream of a first gypsum slurry being transported through said first gypsum delivery receptacle for homogenously adding an additive to the first gypsum slurry, and a second gypsum delivery receptacle transporting a second gypsum slurry, in fluid communication with the mixer providing the first gypsum slurry, having a different set of characteristics from those of the first gypsum slurry. At least one outer surface including a polymeric compound or wax emulsion additive entrained therein essentially encases the core gypsum within two facing layers.
摘要:
A multilayer gypsum board having face sheets comprising inorganic fiber, preferably randomly oriented glass fiber, which have been completely impregnated with a gypsum slurry so as to penetrate through the random interstices between the inorganic fibers and to thereby coat the board surfaces with gypsum slurry. The multilayer gypsum board may have a polymeric compound added to unset gypsum the compound may comprise any of the following: polyacrylamide, polymethylacrylamide, polyvinyidene chloride (PVDC), polyamide, poly (hexamethylene adipamide), polyvinylchloride (PVC), polyethylene, cellulose acetate, polyisobutylene, polycarbonate, polypropylene, polystyrene, polychloroprene, styrene, butadiene, natural rubber, poly (2,6 dimethyl pentene oxide), poly (4-methyl-1-pentene) and polydimethyl siloxane. The multilayer gypsum board may comprise a first layer of a mixture of set gypsum having an outer surface and the polymeric compound additive entrained within the set gypsum and being impregnated in a thin sheet of randomly aligned inorganic fibers so as to essentially encase the core gypsum within two facing layers having a combination set gypsum and polymeric compound.
摘要:
Disclosed is a fastening system that is adapted for securing a sheathing board to an associated framing member. The system includes a feedband for retaining a series of fasteners and a powered drill for sequentially driving the fasteners. The feedband is made from a membrane of a polymeric compound. As the fastener is driven into the sheathing board, a portion of the membrane tears away from the surrounding feedband and becomes seated beneath the fastener. This acts to seal the penetration point and prevent water intrusion and otherwise prevents deterioration of the sheathing board.
摘要:
Disclosed is a fastening system that is adapted for securing a sheathing board to an associated framing member. The system includes a feedband for retaining a series of fasteners and a powered drill for sequentially driving the fasteners. The feedband is made from a membrane of a polymeric compound. As the fastener is driven into the sheathing board, a portion of the membrane tears away from the surrounding feedband and becomes seated beneath the fastener. This acts to seal the penetration point and prevent water intrusion and otherwise prevents deterioration of the sheathing board.
摘要:
A trim assembly for an interior of a passenger compartment of a vehicle comprises a first panel, a first shell, and a second shell. The first panel forms interior trim for the vehicle and defines a first receptacle. The first shell defines a convex surface and a concave surface and is removably coupled within the first receptacle so that one of the convex surface and the concave surface is exposed. The second shell defines a convex surface and a concave surface and is matable to the first shell to define a case. The case is removable from the first receptacle.
摘要:
Disclosed is a fastening system that is adapted for secring a sheathing board to an associated framing member. The system includes a feedband for retaining a series of fasteners and a powered drill for sequentially driving the fasteners. The feedband is made from a membrane of a polymeric compound. As the fastener is driven into the sheathing board, a portion of the membrane tears away from the surrounding feedband and becomes seated beneath the fastener. This acts to seal the penetration point and prevent water intrusion and otherwise prevents deterioration of the sheathing board.