Abstract: Smoke-suppressant polymer compositions are described comprising a resinous polymer of vinyl chloride and a sufficient amount of a smoke-suppressant amount of a heterocyclic compound of the formula ##STR1## where R' is hydrogen or C.sub.1 to C.sub.8 linear or branched alkyl carboxylate and where R" is hydrogen, C.sub.1 to C.sub.8 linear or branched alkoxy, C.sub.1 to C.sub.8 alkoxy substituted linear or branched C.sub.1 to C.sub.8 alkoxy, or furfuryloxy; ##STR2## WHERE X IS 1 OR 2; WHERE X IS 1, R'" is C.sub.1 to C.sub.8 linear or branched alkoxy alkyl or C.sub.1 to C.sub.10 alkoxy alkoxy alkyl; and where x is 2, R'" is C.sub.1 to C.sub.8 linear or branched alkylene, C.sub.1 to C.sub.10 linear or branched oxyalkylene, or C.sub.1 to C.sub.10 linear or branched polyoxyalkylene; or3. mixtures thereof.

Abstract: The invention is directed to an electroforming mandrel of a specific structure which is used for making an electroformed product. The invention also embodies a method for producing an embossing surface.

Abstract: A method is provided for determining the heat energy lost by air infiltration through electrical outlets. A film is used to measure air flow through the outlet. Air flow is cross indexed with a climatic factor determined from a geographic chart to arrive at an energy loss figure.

Abstract: A microwave applicator for uniform or profiled heating of materials with microwave energy. A hollow rectangular waveguide is provided with an array of resonant slots communicating through the wall of the waveguide. The slots are spaced out from the center line of the wall by varying amounts in order to selectively couple energy out of the waveguide. The slots are provided in pairs, individual slots and slot pairs being longitudinally separated by multiples of three-quarters waveguide wavelength distance to improve the efficiency of energy coupling out of the waveguide.

Abstract: An unbacked decorative thermoplastic vinyl resin containing surface covering having a self-induced tension is manufactured by (1) fusing a vinyl resin composition decorative layer and a vinyl resin composition backing layer to a strippable dimensionally stable backing to form a fused thermoplastic decorative surface covering, and (2) removing the strippable backing and rolling the surface covering, thus placing the surface covering under tension and thereby elongating the outward facing layer and compressing the other layer. The composition and structure of the outward facing layer is such that, on unrolling the surface covering, the elongated layer overcomes the compressed layer and the surface covering is stretched to a dimension greater than its original unrolled dimension. On securing the surface covering at its periphery only, the tendency of the surface covering to return to its original dimension, i.e. its elastic memory, creates a self-induced tension therein.

Abstract: An optoelectronic scanning device comprising two sets of photoresponsive elements adjusted to operate at different detection levels and aligned to scan materials marked with luminous paint and illuminated with ultraviolet light. The photo-elements are specially aligned to be optically responsive over an array of contiguous in-line domains and are coupled to trigger circuits to provide snap-action operation. The photo-elements and associated electrical components are heated and maintained at a constant temperature to ensure stable operation of the device.

Abstract: The process for making a surface covering having an embossed wear surface, including embossed design portions which differ in elevation and shading, by depositing a liquid resinous base coating onto a backing, depositing a layer of resinous dryblend onto the liquid resinous coating while it is still wet, heating to sinter the dryblend and at least partially set the base coating, producing a design on the sintered layer by appling settable resinous ink to at least a portion thereof in sufficient amounts and viscosity to permit penetration of the ink into the dryblend layer to a depth of about 10 mils (0.254 mm) at the points of application, at least a portion of the design being formed by applying the ink in minute separate but closely spaced deposits, and heating the composite structure for final fusion to form a non-porous sheet wherein the design areas containing the closely spaced ink deposits may differ in shading and elevation in their ink-containing and non-ink-containing portions.

Abstract: A mechanical embossing process wherein a web of material composed of a composite structure having at least a carrier and a thick foam layer to be embossed is heated in an oven to a temperature of 250.degree. F. to 350.degree. F. and thereafter cooled by wetting the carrier, which is the back surface of the web, to approximately 100.degree. F. below the top surface of the web prior to embossing of the foam. In certain areas of the web, hot spots may occur resulting in a top surface-back surface temperature of less than approximately 100.degree. F. Just prior to embossing, these hot spots are eliminated by selectively and intermittently cooling the back surfaces of the hot spot areas to obtain a top surface-back surface temperature difference of approximately 100.degree. F. The process is used for achieving multilevel mechanical embossing of a fused or cured wear layer in register with a print-on and expanded foam.

Abstract: A process is disclosed for the catalytically-induced preparation of phosphazene polymers. Cyclic halophosphazenes are polymerized in the presence of a catalytically sufficient amount of a compound having the formula M(OR').sub.x where M is an alkali metal or alkaline earth metal, x is equal to the valence of the metal and R' is C.sub.1 to C.sub.10 linear or branched alkyl, C.sub.1 to C.sub.10 substituted linear or branched alkyl, the substituent selected from the group consisting of nitro, C.sub.1 to C.sub.10 alkyl, C.sub.1 to C.sub.10 alkoxy, C.sub.6 to C.sub.10 aryl and C.sub.6 to C.sub.10 aryloxy, or N.sub.3 P.sub.3 Cl.sub.z (OR').sub.6-z wherein R' is as defined above and z equals 0 to 5.

Abstract: A mineral board product is formed having a low density backing layer and a high density damage-resistant surface layer on conventional fourdrinier equipment in a continuous wet-laid process by initially forming a low density water-laid sheet by flowing a slurry of the board-forming materials onto the wire of a fourdrinier and, at that point on the wire where the mat has formed but at which the water content is between about 7.0 and 12.0 percent, a surfacing layer is applied by means of a secondary head box to the mat, the slurry forming said surfacing layer having a slurry consistency of between about 10 and 15 percent and a Canadian Standard Freeness of between about 150 and 300.

Abstract: In a method for manufacturing an embossed thermoplastic surface covering wherein a 100% reactive photopolymerizable coating is applied to the embossed thermoplastic substrate, the improvement comprising prewetting the valleys of the embossed substrate with a liquid consisting essentially of an acrylate monomer or a mixture of acrylate monomers and sufficient photoinitiator to initiate polymerization when the coated substrate is subjected to ultraviolet radiation.

Abstract: Smoke-suppressant polymer compositions are described comprising a polyhalocarbon resin and an organic ester of the formulaROC(O)C(O)OR' (a)wherein R and R' can be the same or different and are C.sub.1 to C.sub.8 alkyl, C.sub.6 to C.sub.12 cycloalkyl or C.sub.1 to C.sub.8 alkoxy-substituted C.sub.1 to C.sub.8 alkyl;RC(CH.sub.2 O).sub.3 (CH.sub.2 CH.dbd.CH.sub.2).sub.3-x (OOCCH.sub.3).sub.3-y (b)wherein R is defined above and x and y are 1 or 2 with the proviso that x.noteq. y;[CH.sub.3 C(O)CH.sub.2 CH.sub.2 C(O)O].sub.x R" (c)wherein x is defined above and R" is C.sub.1 to C.sub.8 alkyl, C.sub.6 to C.sub.12 cycloalkyl, C.sub.1 to C.sub.8 alkoxy-substituted alkyl, C.sub.2 to C.sub.8 alkylene or C.sub.2 to C.sub.8 oxyalkylene; orMixtures thereof.

Abstract: A process for forming a mineral wool, resin-bound acoustical insulating fiberboard product is described, which includes steps for mixing mineral wool fibers and powdered thermosetting binder, the introduction of the mixture into an air stream, and the directing of the entrained mixture into a mat-forming zone formed by converging upper and lower forming wires, the exhausting of air through the wires to build up layers of fiber and binder thereon and the consolidation and heating of the layers to form a fiberboard product, the amounts of air exhausted through the forming wires being adjusted so that a resin-enriched layer of predominantly fine fibers is initially deposited on the upper forming wire. A preferred embodiment is disclosed wherein an open mesh glass fabric is positioned between the lower forming wire and the layer of fibers and resins being formed thereover, said fabric acting as a carrier for the board-forming mat.

Abstract: Polymeric compositions comprising a polyhalocarbon resin and a carbonate plasticizer exhibit excellent smoke-suppressant properties. The polymeric compositions can also be formulated to include zinc oxide.

Abstract: The invention is primarily directed towards a splice for fastening together metal furring strips which are mounted to a ceiling. Ceiling tiles are placed adjacent the metal furring strips and staples are driven through the ceiling tiles into the metal furring strips to mount the ceiling tiles in position.

Abstract: A curable coating composition comprising the reaction product of at least one unsaturated polyaryloxyphosphazene, at least one unsaturated aryloxycyclotriphosphazene, and a crosslinking agent is disclosed. In one embodiment, the coating composition is suitable for use as a cigarette burn resistant wear layer coating for thermoplastic floor coverings.

Abstract: The method and product disclosed herein result in a needle-bonded fabric having a tufted fabric visual. This is accomplished by needling an unconsolidated web consisting of layers of two or more different colored fibers with a needle board having a reduced needle density and wherein the needles are arranged in the needle board in a predetermined pattern. The multi-layer web is processed through a fiber locker containing this reduced needle density board at a higher advance rate per stroke than normal production methods so that the space between the needle punches is greatly increased. The web is transported through the fiber locker in a continuous manner and produces the claimed product. One of the layers of the web is a blend of fibers of widely different fiber deniers and color.

Abstract: The process and apparatus herein is used for achieving multilevel mechanical embossing of a fused or cured wear layer in register with a print on an expanded foam thereunder. The expansion of the decorative foam and fusion of the wear layer are carried out and then the back of the foam is cooled by wetting and liquid evaporation. The wear layer is maintained at a high temperature for embossing and is embossed with registry between the embossed pattern and the printed pattern on the foam. Just prior to embossing, the decorative foam-wear layer web is wrapped around the backup roll of the embossing apparatus, and after embossing, is wrapped partially around the embossing roll of the embossing apparatus.

Abstract: A method is provided for forming a unique embossed laminated board product. A hard core is covered with a soft wood veneer and this is then covered with a resin treated wood fiber sheet. The composite structure is embossed, the embossing occurring in the resin fiber sheet and soft wood veneer. The hard core provides structural rigidity to the finished product and good definition to the embossed product.