Abstract: Mineral fibers, and products (e.g., building insulation products) formed of mineral fibers are treated, and thus rendered fire-resistant, by placing a phosphate-containing compound onto or in close proximity to the mineral fibers. The phosphate-containing compound is at least one which forms a high-temperature protective coating or layer on the surfaces of the mineral fibers. A preferred product of the invention will include two mineral wool layers with a septum carrying the phosphate-containing compound interposed therebetween. Exemplary phosphate-containing compounds include monoammonium phosphate, diammonium phosphate, dicalcium phosphate, monocalcium phosphate, phosphoric acid, aluminum phosphate, tetrasodium pyrophosphate, tetrapotassium pyrophosphate, sodium hexametaphosphate, potassium tripolyphosphate, sodium tripolyphosphate, ammonium polyphosphate, monosodium dihydrogen phosphate, and mixtures thereof.

Abstract: Glass fiber insulation bonded with a UV cured system is disclosed. Specific wavelengths of UV radiation were found that penetrate through the wool pack and yield a uniformly cured polymer throughout the thickness of insulation.

Abstract: Aqueous size compositions for glass fibers including a film former, coupling agent and crystalline pentaerythritol, which are particularly suitable glass fiber reinforcements for filament winding and pultrusion.

Abstract: A sheet molding composition is disclosed which includes a four component resinous system which comprises (a) an unsaturated polyester comprising a polycondensation product of one or more dihydric alcohols and one or more ethylenically unsaturated polycarboxylic acids; (b) one or more low-profile additives which are thermoplastic polymers which cause phase separation and porosity during the curing reaction; (c) one or more olefinically unsaturated monomers which copolymerize with the unsaturated polyester; and, (d) one or more compatible components comprising at least one compound containing one or more aromatic substituents. The compatible components are compatible with the reacted unsaturated polyester and monomer during cure and impart improved surface characteristics when added to low-profile resin systems.

Abstract: A sheet molding composition is disclosed which includes a four component resinous system which comprises (a) an unsaturated polyester comprising a polycondensation product of one or more dihydric alcohols and one or more ethylenically unsaturated polycarboxylic acids; (b) one or more low-profile additives which are thermoplastic polymers which cause phase separation and porosity during the curing reaction; (c) one or more olefinically unsaturated monomers which copolymerize with the unsaturated polyester; and, (d) one or more compatible components comprising at least one compound containing one or more sulfate, sulfonate or sulfone substituents. The compatible components are compatible with the reacted unsaturated polyester and monomer during cure and impart improved surface characteristics when added to low-profile resin systems.

Abstract: A package having a stretch membrane convolutely position about an unwindable wound body of strand where a tacky surface of the membrane contacts the outer layer of strands. The tacky surface also interlocks multiple layers of the membrane together.

Abstract: An aqueous coating composition comprising a polyurethane/isocyanate emulsion, a homopolymer of acrylic acid, an amino silane and water. The sizes are particularly useful for reinforcing polyamide resins (nylons).

Abstract: An underground storage tank comprises a cylindrical inner wall, a cylindrical outer wall of plastic resin and reinforcement fibers, and a layer of spacer filaments wound around the inner wall, the spacer filaments separating the inner and outer walls, and the spacer filaments being at least partially surrounded by voids to enable liquids to flow along the filaments.

Abstract: The present invention provides a fiberglass composite which possesses outstanding armor properties. This ballistic resistant composite material employs high strength magnesia aluminosilicate glass fibers and phenol formaldehyde condensation product as the matrix resin. The composite is produced from sheet molding compound using little or no solvent.

Abstract: Aqueous size compositions for glass fibers including melamine formaldehyde resins, phenoxy resins and epoxy coupling agents which are particularly suitable glass fiber reinforcements for thermoplastics. In particular, chopped glass fibers coated with the size are useful in reinforcing acetal composites.

Abstract: An aqueous coating composition for fibers comprising, a thermoplastic polyurethane latex, and acrylic latex, the balance being water. The coating also contains a paraffin wax or a second acrylic latex. When coated onto a bundle or strand of glass fibers the coated glass fibers are useful in optical fibers and cables. This coating is especially useful in reducing water wicking into the coated glass strand.

Abstract: A sheet molding composition is disclosed which includes a four component resinous system which comprises (a) an unsaturated polyester comprising a polycondensation product of one or more dihydric alcohols and one or more ethylenically unsaturated polycarboxylic acids; (b) one or more low-profile additives which are thermoplastic polymers which cause phase separation and porosity during the curing reaction; (c) one or more olefinically unsaturated monomers which copolymerize with the unsaturated polyester; and, (d) one or more compatible components comprising at least one compound containing one or more polyoxyethane substituents. The compatible component remains compatible when the polyester and monomer cure and imparts improved surface characteristics when added to low-profile resin systems.

Abstract: We have developed a new pattern for continuous strand fiberglass mat which gives improved torsional rigidity to the molded structure. The pattern is basically an elongated elliptical loop where the strands lay on the conveyor and look like lazy whirl formations or concentric circles with diameters dependent upon properties such as bending rigidity and torsional rigidity. The lay-down pattern looks cycloidal in nature. Elongated elliptical strand loops become further elongated until at some point they also contain "pigtails" or somewhat straight strands with small elliptical loops oriented in the cross-machine direction.

Abstract: Composite spinners for use in forming glass fibers are formed by transient liquid phase bonding of an oxide dispersion strengthened foraminous sidewall portion to a non-oxide dispersion strengthened bottom wall portion.

Abstract: An underground storage tank has an inner wall and an outer wall defining a generally annular space for receiving a leak detecting fluid, and a plurality of ribs bonded to the inner and outer walls and projecting radially outwardly from the inner wall, each rib comprising sidewalls and a top wall, the outer wall being attached to the top wall of each rib but substantially unattached to the sidewalls of each rib, and the outer wall substantially conforming to the contour of the inner wall and the ribs.

Abstract: An aqueous coating composition for glass fibers is provided which contains a polycarbonate precursor material and a water soluble film former or binder. The resulting coated glass fibers have excellent flexibilty with little or no powdering of the coating composition off the fibers.

Abstract: Citrate ester compositions which are useful as compatible components in a resinous system for sheet molding compositions and have a general formula ##STR1## wherein X is selected from the group consisting of --OC.sub.3 H.sub.6).sub.3 --OCH.sub.3 and OH are disclosed. Also disclosed is a sheet molding composition which includes a four component resinous system comprising (a) an unsaturated polyester comprising a polycondensation product of one or more dihydric alcohols and one or more ethylenically unsaturated polycarboxylic acids; (b) one or more low-profile thermoplastic polymer additives which cause phase separation and internal voids during the curing reaction; (c) one or more olefinically unsaturated monomers which copolymerize with the unsaturated polyester; and, (d) one or more compatible components which remain compatible when the polyester and monomer cure and impart improved surface characteristics when added to typical low-profile resin systems.

Abstract: A method and apparatus for manufacturing roofing shingles having tabs and cutouts comprises a cutting cylinder for engaging a membrane and cutting it into continuous strips, where the circumference of the cutting cylinder and the length of the shingle have a common factor other than the length of the shingle, and an endcut cylinder for cutting the continuous shingle membrane strips into discrete roofing shingles, so that the pattern of tabs and cutouts will repeat itself periodically.

Abstract: An insulation panel comprises a mineral fiber board having a density between 8 and 28 pounds per square foot, the fibers having no organic binder thereon, and between 5 and 40 percent by weight of particulate material packed in the interstices of the board, and a gas-tight envelope encapsulating the board, the envelope being evacuated to a vacuum between 10.sup.-4 Torr and 10 Torr.

Abstract: An insulation panel comprises a mineral fiber board having a density between 8 and 28 pounds per square foot, the fibers having no organic binder thereon, and between 5 and 40 percent by weight of particulate material packed in the interstices of the board, and a gas-tight envelope encapsulating the board, the envelope being evacuated to a vacuum between 10.sup.-4 Torr and 10 Torr.