Abstract: A glass composition is disclosed that comprises SiO2 in an amount from 50 to 58% by weight; Al2O3 in an amount from 18 to 23% by weight; less than 18% by weight of CaO and MgO; at least 5% by weight of Y2O3 and La2O3, wherein Y2O3 and La2O3 are present in a ratio R1 (R1=Y2O3/La2O3) between 2 and 4. A glass fiber formed from the glass composition has a sonic fiber elastic modulus of at least 94.5 GPa.

Abstract: A high modulus composite part is disclosed comprising a polymer resin; and a plurality of high-performance unidirectional glass fibers. The high-performance unidirectional glass fibers have an elastic modulus of at least 89 GPa and a tensile strength of at least 4,000 MPa, according to ASTM D2343-09. The composite part comprises a fiber weight fraction (FWF) of no more than 88% and an elastic modulus of at least 60 GPa, according to ASTM D7205.

Abstract: A glass composition is provided that includes about 55.0 to 60.4% by weight SiO2, about 19.0 to 25.0% by weight Al2O3, about 8.0 to 15.0% by weight MgO, about 7 to 12.0% by weight CaO, less than 0.5% by weight Li2O, 0.0 to about 1.0% by weight Na2O, and 0 to about 1.5% by weight TiO2. The glass composition has a fiberizing temperature of no greater than about 2,500° F. Glass fibers formed from the inventive composition may be used in applications that require high stiffness, and low weight. Such applications include woven fabrics for use in forming wind blades and aerospace structures.

Abstract: A glass composition is provided that includes about 57.0 to 62.0% by weight SiO2, about 20.0 to 25.0% by weight Al2O3, about 8.0 to 12.5% by weight MgO, about 7 to 9.0% by weight CaO, about 0.4 to 1.0% by weight Li2O, 0.0 to about 1.0% by weight Na2O, about 0 to 0.5% by weight K2O; and 0.2 to about 1.5% by weight TiO2. The glass composition has a fiberizing temperature of no greater than about 1,300 C. Such applications include woven fabrics for use in forming wind blades and aerospace structures.

Abstract: A glass composition is provided that includes about 55.0 to 60.4% by weight SiO2, about 19.0 to 25.0% by weight Al2O3, about 8.0 to 15.0% by weight MgO, about 7 to 12.0% by weight CaO, less than 0.5% by weight Li2O, 0.0 to about 1.0% by weight Na2O, and 0 to about 1.5% by weight TiO2. The glass composition has a fiberizing temperature of no greater than about 2,500° F. Glass fibers formed from the inventive composition may be used in applications that require high stiffness, and low weight. Such applications include woven fabrics for use in forming wind blades and aerospace structures.

Abstract: A glass composition is provided that includes about 55.0 to 60.4% by weight SiO2, about 19.0 to 25.0% by weight Al2O3, about 8.0 to 15.0% by weight MgO, about 7 to 12.0% by weight CaO, less than 0.5% by weight Li2O, 0.0 to about 1.0% by weight Na2O, and 0 to about 1.5% by weight TiO2. The glass composition has a fiberizing temperature of no greater than about 2,500° F. Glass fibers formed from the inventive composition may be used in applications that require high stiffness, and low weight. Such applications include woven fabrics for use in forming wind blades and aerospace structures.

Abstract: A glass composition is provided that includes about 55.0 to 60.4% by weight SiO2, about 19.0 to 25.0% by weight Al2O3, about 8.0 to 15.0% by weight MgO, about 7 to 12.0% by weight CaO, less than 0.5% by weight Li2O, 0.0 to about 1.0% by weight Na2O, and 0 to about 1.5% by weight TiO2. The glass composition has a fiberizing temperature of no greater than about 2,500° F. Glass fibers formed from the inventive composition may be used in applications that require high stiffness, and low weight. Such applications include woven fabrics for use in forming wind blades and aerospace structures.

Abstract: Methods of and systems for quantifying a degree of texturization of fibrous materials, such as muffler fill materials, are disclosed.

Abstract: Apparatus for processing board insulation into granules of loosefill insulation are provided. The apparatus includes an upper unit having inlet and outlet ends. The inlet end is configured to receive board insulation. The upper unit is configured to break the board insulation into small pieces. A lower unit is connected to the upper unit. The lower unit is configured to receive the small pieces of board insulation exiting the upper unit. The lower unit includes a plurality of conditioning mechanisms configured to condition the small pieces thereby resulting in granules of loosefill insulation. The lower unit further includes a distribution mechanism configured to distribute the granules of loosefill insulation into an airstream. A distribution hose is connected to the lower unit and configured to convey the granules from the apparatus to a building insulation cavity. The granules are configured for use as loosefill insulation within the building cavity.

Abstract: Apparatus for processing board insulation into granules of loosefill insulation are provided. The apparatus includes an upper unit having inlet and outlet ends. The inlet end is configured to receive board insulation. The upper unit is configured to break the board insulation into small pieces. A lower unit is connected to the upper unit. The lower unit is configured to receive the small pieces of board insulation exiting the upper unit. The lower unit includes a plurality of conditioning mechanisms configured to condition the small pieces thereby resulting in granules of loosefill insulation. The lower unit further includes a distribution mechanism configured to distribute the granules of loosefill insulation into an airstream. A distribution hose is connected to the lower unit and configured to convey the granules from the apparatus to a building insulation cavity. The granules are configured for use as loosefill insulation within the building cavity.

Abstract: Latex spray foams formed from a two-part foamable composition are provided. The A-side contains a functionalized latex and an acid and the B-side contains a polyfunctional aziridine crosslinking agent, a plasticizer, a base, and, optionally, a non-functionalized resin. The acid and the base form a blowing agent package that when mixed, react to form a gas. The A- and B-side also contain thickening agents. The polyfunctional aziridine crosslinking agent is diluted by a plasticizer, which reduces the viscosity of the B-side and reduces the amount of ethyleneimine, a toxic component in the polyfunctional aziridine crosslinking agent. The presence of a plasticizer also permits the inclusion of other materials that may add functionality and/or cost savings to the foamed product. The plasticizer should have no acidic protons to react with the crosslinking agent. When no acidic protons are present, the B-side is stable for extended periods of time.

Abstract: A mold for manufacturing a simulated corner stone product includes a flexible layer that includes one or more corner stone shaped mold cavities. A cover is removably positioned against each mold cavity such that a back face of each corner stone product is formed with a desirable molded interior angle.

Abstract: A mold for manufacturing a simulated stone product includes a flexible layer that defines a mold cavity section in the shape of the simulated stone product to be formed. The flexible layer also has a support section surrounding the mold cavity section. The support section is configured to substantially resist flexing during unmolding of the simulated stone product.