Window frames/doors

There are perhaps hundreds of miscellaneous unsaturated polyester resin construction applications. These would include window frames, doors, cabinet enclosures, electrical boxes, etc. In addition, recent developments bode well for unsaturated polyesters in construction markets. Concrete rebar, bridge construction and general infrastructure repair are examples of growing construction applications. 

As an example, rigid PVC provides an excellent cost/performance balance with inherent flame retardancy. It is used particularly in building and construction applications such as window frames, doors, fencing and plumbing, but it needs improvement in some mechanical and weatherability properties, which is achieved by use of an acrylic-styrene or a butadiene-based, rubbery impact modifier. 

Jamb jam [ME jambe, ff. MF, LL gamba] (14c) n. Vertical face inside an opening to the full thickness of a wall vertical slide members of a window frame, door frame, or lining. Harris CM (2005) Dictionary of architecture and construction. McGraw-Hill Co., New York. 

As window frames, doors In plumbing, fixtures, pipes, gutters and drainage systems As anti-vibration mountingsand seismic isolators... 

Poly(vinyl chloride) + poly(vinyl chloride-co-acrylate), PVC + VC/A poly(vinyl chloride) + chlorinated polyethylene, PVC + PE- C, poly( vinyl chloride) + poly(acrylonitrile-co-butadiene-co-acrylester), PVC + ASA. Applications semifinished goods, foils, plates, profiles, pipes, fittings, gutters, window frames, door frames, panels, housings, bottles, blow molding, disks, blocking layers, fibers, fleeces, nets. 

BeryUium is used in the space shuttle orbiter as window frames, umbUical doors, and the navigation base assembly. An important appHcation for beryUium is inertial guidance components for missiles and aircraft. Here the lightweight, high elastic modulus, dimensional stabUity, and the capabUity of being machined to extremely close tolerances are aU important. 

Polystyrene. Polystyrene [9003-53-6] is a thermoplastic prepared by the polymerization of styrene, primarily the suspension or bulk processes. Polystyrene is a linear polymer that is atactic, amorphous, inert to acids and alkahes, but attacked by aromatic solvents and chlorinated hydrocarbons such as dry cleaning fluids. It is clear but yellows and crazes on outdoor exposure when attacked by uv light. It is britde and does not accept plasticizers, though mbber can be compounded with it to raise the impact strength, ie, high impact polystyrene (HIPS). Its principal use in building products is as a foamed plastic (see Eoamed plastics). The foams are used for interior trim, door and window frames, cabinetry, and, in the low density expanded form, for insulation (see Styrene plastics). 

Door and Window Frames and Sashes. The first successflil application of rigid PVC for windows was as a cladding over a wood core to avoid the need for painting and repainting the sash and the exterior of the frame. Since then, extmded profiles of rigid PVC have been developed to allow... 

Leaks in the building envelope, due to cracks in walls or joints, gaps in window and door frames... 

Provide good draft-proofing strip around the door and operable window frames, leaving sufficient fresh air ingress for any combustion appliances. 

This is the one example in which metal is not the substrate. Corrosion takes on a new meaning the coating here is required to protect the substrate from direct attack by corrosive substances, from water to more powerful household or industrial chemicals, such as grease, alcohols and bleach. We are concerned with the industrial application of thin protective layers to paper (e.g. labels), card (e.g. playing cards) and many wooden articles, including industrially finished doors, window frames and, particularly, furniture. 

Coating materials may be based on short or medium-oil alkyds (e.g. primers for door and window frames) nitrocellulose or thermoplastic acrylics (e.g. lacquers for paper or furniture finishes) amino resin-alkyd coatings, with or without nitrocellulose inclusions, but with a strong acid catalyst to promote low temperature cure (furniture finishes) two-pack polyurethanes (furniture, flat boards) unsaturated polyester resins in styrene with free-radical cure initiated by peroxides (furniture) or unsaturated acrylic oligomers and monomers cured by u.v. radiation or electron beams (coatings for record sleeves paperback covers, knock-down furniture or flush interior doors). 

We use variants of profile extrusion to produce tubing -with diameters of less then 1 mm and pipes with diameters exceeding 1 m, Wall thicknesses can vary from a few tens of micrometers up to several centimeters. Extruded window and door frames are more complex than pipes. Such profiles are largely hollow with internal ribs and fins that reinforce and divide the interior into two or more channels. We use solid rubber profiles in applications such as door seals and windshield wipers. We can produce foamed extrudates by incorporating a blowing agent, such as butane or carbon dioxide, into the polymer in the molten state. As the polymer exits the die, its internal pressure drops and the dissolved gas expands to form bubbles within the product. Examples of foamed extrudates include pipe insulation and automobile door gaskets. 

We find polyvinyl chloride in so many applications because we can formulate it to be rigid, flexible, or any intermediate hardness required. Rigid polyvinyl chloride is used to manufacture siding, pipes, fences, gutters, window and door frames, credit cards, and many other extruded... 

Applications for structural steel in blast resistant design include beams and columns for the support of vertical loads, braced and rigid frames for the support of vertical and horizontal loads, and specialized elements such as doors, window frames, decking, and protection for duct openings. For lower blast loads, steel siding can be used. 

All the difficulties in achieving dark colors for PVC siding apply also to door and window frames and sashes. Coextmsion of a PVC core capped with a vinyl or acrylic film from an adjacent extmder can be used. In addition, PVC-acrylic alloys can be used for dark colors. The modifiers, stabilizers, and pigments incorporated in siding are used in these products as well. To date, building codes restrict their use in new construction, so that their installation is primarily as replacements. 

Because of the extraordinary outdoor weatherability of ASA, it is being molded and extmded in various door and window frame applications. Likewise, in commercial construction, thermoplastic elastomers are finding increasing use in window-wall constructions. Poly(vinyl chloride) strips have been used as thermal breaks in aluminum windows, and aluminum doors and frames have been clad with PVC. A dual-wall, internally-ribbed construction, like that used for siding, has been used for door and window frames and sashes in mild climates. 

Recendy, storm doors have been constmcted of advanced thermoplastic composites. Stampable, glass-mat reinforced polypropylene sheet is used to create a high strength outer skin. These compression molded skins are welded together using a friction or ultrasonic process then injection molded with a polyurethane foam core to produce an insulated structure. New technology for window frames incorporate the pultrusion of frame channels to produce a thermoset composite channel that can be filled with fiber glass for further insulation enhancement (12,31,33,34,48,49,54—56,60—67). 

One scene was in a restaurant/hotel with the usual confusion of rooms, levels, and people. It seemed like a reunion in the dining room because there were some people from Harvard there though none was identified. My job was to find the back door so as to exit directly to the street and not backtrack to the lobby. I opened several doors only to find that they were in fact windows which had been closed, by carpentered panels, from the outside. I noticed that wooden wedges had been inserted between the window frames and the panels, an elaborate contrivance for which the function was not apparent. It seemed odd that the panels would be so spaced rather thanfittingflush. 

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