Sep , PVC waterstops currently in use are far from perfect and one of the inconveniences of using them is that since polyvinyl chloride has zero adhesion with concrete, the smallest shrinkage of concrete, which is normal during the curing process Even for walls mm thick, it can take days for moisture to
Nov , The core panel defines a constant thickness portion and a ramp portion along which the core panel tapers to a reduced thickness portion being configured as an elongate hollow cell having a hexagonal cross section and being oriented generally orthogonally relative to the inner and outer face sheets .
Aug , Plastic pipes, fittings and other piping appurtenances prepared from CPVC formulations meeting requirements of ASTM D , cell class B, yet exhibiting suitable processability.
Dec , Mortar and debris collection systems for cavity wall construction and or walls constructed from concrete masonry units (CMU), for example, include a mesh body made This honeycomb like mortar collection device of the patent is made from plastic bent to conform to walls of a CMU hollow core .
The thin core , which is preferably extruded or roll formed of metal such as aluminum or plastic such as PVC, defines a hollow channel with lateral side walls with projecting edges The cast foam layer has lateral side walls with projecting contact edges , and sloping walls , as well as another wall
An angular connection for a frame or counterframe composed of hollow sections of plastic material includes at least one plastic angular element inserted with its two legs fitting firmly in the hollow sections at the point at which they converge The walls of the sections are welded to the legs of the insert by ultrasonic spot welds
The panel comprises first and second fiberglass reinforced resin matrix facing layers and a balsa containing core means, weights less than about to about lbs per ,, to Cole relates to a wall system that employs a series of extruded polymeric materials, such as PVC, convex in shape and joined together by a
Mar , ,,, for instance, discloses a plastic panel fabricated from separate panel members, preferably formed of polyvinyl chloride which snap together to form a thin wall panel The panels in ,, comprises a hollow rectilinear thermoplastic extrusion having a core and coextruded outer skin .
Aug , The system of claim , wherein the panel comprises a core comprising the continuous phase resulting from the curing of an aqueous mixture of reactive powders comprising, on a dry basis, to wt. calcium sulfate alpha hemihydrate, to wt. hydraulic cement, to wt. lime, and to wt.
Jun , This capability to fit a solid screen door simply does not exist in a hollow core plastic door As shown in FIG , hardware items such as hinges can be attached by screws with a screw driver , as shown, or a power screw driver Because the material of which frame is made is simply closed cell
Aug , For example, a core shell overpolymer could be formed by making a crosslinked PVC core and then overpolymerizing with vinyl chloride to form a crosslinked PVC core with a non crosslinked PVC shell In this instance, both the first and second polymer would be present in the same resin particle.
A process is provided for producing an imitation wood workpiece by forming a synthetic resin workpiece having a cellular plastic core and a densified covering A sheet of synthetic resin is brought to an elevated temperature, for example, by means of surface heating and fine furrows are embossed in the surface of the
A fiber reinforced structural member comprises a shell element formed of a fiber reinforced material such as, for example, a fiber reinforced plastic, and a core The core element a comprises two primary core elements a each formed by filling a filling material a such as, for example, foam polyurethane, in a hollow
Dec , This is hard to achieve on hollow core doors unless you use a lightweight acoustical panel Otherwise there will be balance and functionality problems with a lightweight hollow core door It is also not going to look as finished, depending on the product you would choose Taping edges where the door shuts
The two parts thus formed may be adhered together by using standard and conventional cements, afterwhich the cornpleted shell is filled with the cellular plastic core asexplained above An appropriate material forthe skin is a thermoplastic sheet of tough, synthetic, rubber like plastic such as is manufactured and sold by
Nov , The panel of any one of claims to , wherein the hollow core or partially hollow core layer comprises at least one of a layer for receiving pipes and wires and a layer for receiving sand, a layer for receiving an insulation material The panel of any one of claim or , wherein the layers are fully oriented
Jan , When stacked vertically between two structural framing columns, the elements form non load bearing walls system () The elements Manual fabrication using PVC moulds produces individual elements of various lengths The factory set up can be similar to the production line of the hollow core slabs.
Dec , b at least two speakers positioned in said longitudinal inner core of said tube, said speakers being in functional communication with a radio circuit board when all components were positioned and secured, the hollow core of the lid was covered with a thick coating of water proof protective plastic foam.
Feb , The exterior shell can include multilayers of fibers wrapped in straight hoop patterns in single sheets with or without longitudinal axial fibers Invention consists of an exterior filament wound shell , interior pultruted fiber reinforced plastic (FRP) portions , , and concrete core Exterior filament