Abstract: Off-size greenware (the product resulting from the initial gelation and filter pressing of calcareous and siliceous materials in an aqueous slurry) is recycled. The greenware is pulverized into a desirable size and combined with new calcareous and siliceous materials in the initial slurrying step. The slurry containing recycled greenware gels at an improved rate.

Abstract: A gel suitable for fiber formation is produced by reacting a Group II water soluble metal oxide with an aluminum chlorohydrate-organic complex to form a complex which is hydrolyzed and dried at elevated temperatures.

Abstract: A method and apparatus for cooling a continuously moving strip of asphaltic material includes directing the asphaltic material into a plurality of loops, spraying an evaporative liquid onto the asphaltic material, evaporating the evaporative liquid by causing an array of air jets to impinge on the asphaltic material subtantially normally to the asphaltic material, sensing the surface moisture of the asphaltic material subsequent to one or more of the loops, and modifying the flow of evaporative liquid sprayed in one or more of the loops in response to the sensed surface moisture.

Abstract: A gas to solid contacting apparatus comprising a chamber, at least one solid inlet conduit opening into the chamber, at least one gas inlet conduit opening into the chamber, the gas inlet and outlet comprising superimposed conduits.

Abstract: A method and apparatus is provided for producing a mat of continuous glass filaments at increased throughput while maintaining desirable tensile strength characteristics by means of a fluidic distribution system employing diagonally opposed Coanda effect surfaces having extensions therefrom.

Abstract: A method of removing coatings from glass fibers in which the fibers are introduced into a bed fluidized by a gas at elevated temperatures, the gas converting the coatings to substances which leave the bed with the gases.

Abstract: A method and apparatus for producing a laminated pack of mineral fibers comprising two sections, each having a forming conveyor, a plurality of sources of mineral fibers positioned to successively deposit the fibers onto the forming conveyor to form a layer of fibers, vacuum means to provide suction to the fibers through the forming conveyor, the suction being sufficient to force substantially all of the fibers down onto the forming conveyor, thereby crushing the bottom portion of the layer and forming a bottom surface which is smooth relative to the top surface, and means for joining the top surfaces of the layer formed in each section by diverting each layer downwardly while maintaining the suction on the layers to produce a laminated pack having as its outer surfaces the bottom surfaces of each of the two layers.

Abstract: The apparatus includes a rotatably mounted roll having an elastomeric sleeve with nails mounted therein at equal angles respectively to corresponding imaginary radial lines of the roll.

Abstract: The insulation resistance of glass fibers is improved by contacting the glass fibers with monofunctional silanes such as phenyldimethylethoxysilane

Abstract: A migration-free size for glass fibers which includes a silane coupler, lubricant and film former and is characterized by the absence of a carrier, either aqueous or organic. To provide required shelf-life, a volatile agent such as acetone is added in limited amount to block coupler-film former reaction pending use of the size.

Abstract: A method for improving the adhesiveness between a polyolefin resin and a sized glass fiber which comprises forming a mixture of the resin, a fiber and an organic acid and molding the mixture.

Abstract: A method of emulsifying an unsaturated diallylphthalate-based resin to form a continuous water phase emulsion which involves mixing a diallylphthalate-based resin with a specified emulsifying agent, adding water and agitating to form an emulsion in which the aqueous phase is the continuous phase.

Abstract: Dilute aqueous sizing compositions for glass fibers containing emulsified epoxy resin, lubricant and, as the sole organosilane coupling agent, 3-chloropropyltrimethoxy silane give superior properties to glass fibers having as a size coating the in situ dried residue thereof for use as reinforcing elements in polymeric or resinous articles.

Abstract: Aqueous sizing compositions for glass fibers having emulsified epoxy resin as film-former, emulsified mineral oil as lubricant, glycidoxyalkyl and/or haloalkylsilanes as coupling agents, amide anti-static agent and polyvinylpyrrolidone give superior properties, especially where the sized glass fibers are used as reinforcement in epoxy resin articles, when reduced proportions of predominantly anionic surfactants are used to co-emulsify the epoxy resin film-former and the mineral oil.

Abstract: A size for glass fibers is disclosed, the size comprising an oxidized polyolefin, a polymeric film former and an organic acid, preferably terephthalic acid or isophthalic acid.

Abstract: Method and apparatus are disclosed for recovering blowing wool from an air stream by introducing the stream out aa drum rotating in a sealed shroud, the speed of rotating be adjusted in response to the pressure differential across the surface of the drum.

Abstract: The duct system includes rectangular duct sections suspended from a ceiling of a room, discharging conditioned air from the top, and being formed of fabricated acoustical fibrous board sound absorbent with respect to sounds emanating from sources in the room outside of the duct sections.

Abstract: The present invention encompasses a system for at least partially drying or curing wet glass strand as it is being wound into a package wherein streams of heated gas, such as air, are directed into contact with the outer layer of strand being collected on a rotating collet. Preferably, the streams of gas have a specific orientation with respect to the layers of strand and are supplied at predetermined temperatures and velocities to maximize the drying effect.

Abstract: A method of producing sheet material consisting of clay, glass fibers and a latex resin and the product produced thereby.

Abstract: A method of reclaiming chemically coated glass scrap is disclosed. The scrap is introduced into the oxidizing atmosphere of a hydrocarbon-fuel fired glass melting furnace. Some of the glass is melted with the unmelted portion being melted with the glass batch as it moves through the furnace.