Patents Assigned to Owens-Corning Fiberglas Corporation
  • Corrosion resistant cobalt-base alloy containing hafnium
    Patent number: 4765817
    Abstract: A cobalt-base alloy containing hafnium and having a high tantalum and zirconium content and a low silicon content has superior strength and improved resistance to corrosion by molten glass. The alloy is highly suited for use in spinners for spinning molten mineral material, such as glass, into fibers.
    Type: Grant
    Filed: February 7, 1986
    Date of Patent: August 23, 1988
    Assignee: Owens-Corning Fiberglas Corporation
    Inventor: David J. Gaul
  • Fibrous polymer insulation
    Patent number: 4762749
    Abstract: An improved insulating material comprising a fibrous web of bulking fibers intimately mixed with infrared opacified fibers. The web has a density of between about 0.2 to about 2.00 pounds per cubic foot and a thermal conductivity of less than 0.55 (BTU - in/hr - ft sq - deg F).
    Type: Grant
    Filed: August 2, 1985
    Date of Patent: August 9, 1988
    Assignee: Owens-Corning Fiberglas Corporation
    Inventor: Mark A. Schuetz
  • Corrosion resistant cobalt-base alloy containing hafnium and a high proportion of chromium and method of making fibers
    Patent number: 4761169
    Abstract: An alloy suitable for use as a spinner in forming glass fibers, the alloy being cobalt-based and including the following elements in percent by weight: chromium--about 34.0 to about 38.0; nickel--about 10.0 to about 15.0; wolfram--about 4.0 to about 7.0; tantalum--about 2.0 to about 5.0; zirconium--about 0.1 to about 0.4: silicon--present but about 0.15 max; carbon--about 0.65 to about 0.95; boron--about 0.005 to about 0.02; hafnium--about 0.4 to about 1.0; aluminum--0.0 to about 0.2; titanium--0.0 to about 0.2; manganese--0.0 to about 0.5; molybdenum--0.0 toabout 0.1; iron--0.0 to about 2.0; and cobalt--balance; and further that: ##EQU1## said percents of the elements in equation Nos. 1 and 2 each being atom percent.
    Type: Grant
    Filed: October 3, 1986
    Date of Patent: August 2, 1988
    Assignee: Owens-Corning Fiberglas Corporation
    Inventor: David J. Gaul
  • Method of molding thick parts of fibrous-ply-reinforced resin
    Patent number: 4758395
    Abstract: The method comprises placing upper and lower stacks of unimpregnated fibrous reinforcement plies having a core of preimpregnated fibrous reinforcement plies therebetween in a mold and injecting chemically activated resin to impregnate the upper and lower stacks of unimpregnated fibrous reinforcement plies and initiate curing of heat-activatable resin of the core, and removing the molded part from the mold after curing and cooling of the part.
    Type: Grant
    Filed: November 4, 1986
    Date of Patent: July 19, 1988
    Assignee: Owens-Corning Fiberglas Corporation
    Inventor: Earl M. Zion
  • Enzyme immobilization on non-porous glass fibers
    Patent number: 4749653
    Abstract: Enzymes are immobilized on non-porous glass fibers by coating glass fibers with a solution containing an enzyme and a soluble polymer and contacting the coated fibers with a controlled amount of cross-linking agent to obtain an immobilized enzyme having high activity and long endurance, and which provides a high percentage of conversion. The enzyme may be an amylase, the polymer a plyalkyleneimine and the cross-linking agent glutaraldehyde. Continuous immobilization can be carried out by moving continuous fibers to applicator stations for applying a solution of enzyme and polymer and a solution of cross-linking agent.
    Type: Grant
    Filed: October 21, 1985
    Date of Patent: June 7, 1988
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: David M. Lee, Gary M. Nishioka, Wayne E. Swann, Carol A. Nolf
  • Emulsified crack or joint filler
    Patent number: 4745155
    Abstract: The present invention provides an aqueous emulsion joint and crack filler capable of passing the ASTM Specification 1190 for joint and crack fillers. The emulsion solids are the reaction product of asphalt, an extender oil, a mixture of elastomers, an acrylamide and a vinyl monomer. The preferred elastomer mixture includes a liquid rubber and at least one block copolymer of styrene and a conjugated diene, such as triblock and diblock copolymers of styrene and butadiene. The preferred emulsion medium is water containing a surfactant and an acrylamide polymer. The emulsion is poured at ambient temperature into a joint or crack, and cures rapidly to ensure minimal traffic interruption.
    Type: Grant
    Filed: September 25, 1986
    Date of Patent: May 17, 1988
    Assignee: Owens-Corning Fiberglas Corporation
    Inventor: Anthony V. Grossi
  • Method and apparatus for electrically heating molten glass
    Patent number: 4741753
    Abstract: A method and apparatus for continuously melting and refining molten glass are disclosed which comprises the steps of applying a preponderance of heat to a molten glass mass by Joule effect heating and pulsating a portion of the heat applied to the molten glass mass such that the temperature of the surface molten glass is increased and the temperature of the molten glass being withdrawn is reduced and the total energy supplied to the furnace is reduced. An electric circuit means comprising at least two interconnected electrodes is pulsated on and off at predetermined time intervals in order to establish the desired temperature profile within the molten glass mass.
    Type: Grant
    Filed: March 12, 1987
    Date of Patent: May 3, 1988
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Isac M. Sheinkop, Manoj K. Choudhary
  • Method and apparatus for the manufacture of glass fiber bulk strand roving
    Patent number: 4741151
    Abstract: A glass fiber bulk strand roving that is made up of a multiplicity of strands, each of which is made up of a plurality of individual fibers, for example, 200 of such fibers. Each strand of the roving has a multiplicity of rather long, axially extending loops, for example, axially extending loops with a calculated length of at least 6 inches, and a multiplicity of shorter, unbroken, cross-axially extending loops that are formed in the axially extending loops of such strands. The axially extending loops and the cross-axially extending loops interengage and intertwine with one another to form a composite entangled structure. The roving of the present invention is made by a process that uses a finger wheel to form axially extending loops in strands and a spinner downstream of the finger wheel.
    Type: Grant
    Filed: April 30, 1987
    Date of Patent: May 3, 1988
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Jerome P. Klink, Hellmut I. Glaser
  • Apparatus for supplying molten glass and method of fabricating same
    Patent number: 4738707
    Abstract: A channel made from refractory elements is fabricated without gaps or expansion joints between the refractory elements by supporting the channel upon a movable carriage to accommodate the lengthwise expansion of the channel as the temperature of the channel is increased from room temperature to its operating temperature.
    Type: Grant
    Filed: June 23, 1986
    Date of Patent: April 19, 1988
    Assignee: Owens-Corning Fiberglas Corporation
    Inventor: Charles S. Dunn
  • Hot-melt adhesive
    Patent number: 4738998
    Abstract: Thermal insulating articles are disclosed of the type which comprises a laminate of thermal insulation and a flexible jacket material with the jacket and thermal insulation being directly adhesively adhered to each other by means of a hot-melt adhesive. The hot-melt adhesive employed consists essentially of an asphalt, an ethylene-vinyl acetate copolymer and a wax. Also provided is a hot-melt adhesive which consists essentially of an asphalt, an ethylene-vinyl acetate copolymer and a compatible wax, which is especially useful in adhering paper used as package wrap.
    Type: Grant
    Filed: May 21, 1987
    Date of Patent: April 19, 1988
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: William E. Uffner, Donald J. Algrim, James R. Gleason
  • Asphalt adhesives superimposed on asphalt-based roofing sheet
    Patent number: 4738884
    Abstract: An adhesive is provided for adhering roofing shingles wherein the adhesive is a blend of asphalt, an elastomer, a tackifying resin and a petroleum oil.
    Type: Grant
    Filed: May 14, 1987
    Date of Patent: April 19, 1988
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Donald J. Algrim, William E. Uffner, Glenn D. Lamb, Stephen J. Jones
  • Method for manufacturing mineral fibers
    Patent number: 4737178
    Abstract: A method for manufacturing mineral fibers comprises controlling the bushing temperature to maintain molten glass throughput from a bushing at a constant, calculating the viscosity of the molten glass from the bushing temperature and the temperature of a glass delivery means, and modifying a process parameter in response to the calculated viscosity.
    Type: Grant
    Filed: October 27, 1986
    Date of Patent: April 12, 1988
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Louis G. Reifschneider, Michael J. Rolf
  • Waterproof membrane
    Patent number: 4735838
    Abstract: A membrane for waterproofing a building component, e.g., a roof or a basement wall. The membrane includes a first layer of asphalt-elastomer blend which preferably is self-adherent to the building component and an overlying layer of plastic film which bears at least one adhesive strip adhered to the plastic film. The membrane is in the form of elongated strips which are overlapped to cover the building component, and the adhesive of each strip ensures a waterproof joint between the laminae of the overlapped strips.
    Type: Grant
    Filed: January 10, 1986
    Date of Patent: April 5, 1988
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Michael G. Roberts, Charles E. Bolen, John L. Kane
  • Coating for wallboards
    Patent number: 4735027
    Abstract: A coating for a wallboard comprises of silica sand, cement and a particulate, non-fibrous filler, where the ratio of the average sand diameter to the average filler diameter is within the range of from about 40:1 to about 20:1.
    Type: Grant
    Filed: August 8, 1986
    Date of Patent: April 5, 1988
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Michael E. Evans, James R. Gleason
  • Method and apparatus for heating mineral fibers
    Patent number: 4734996
    Abstract: A method and apparatus for heating fibrous mineral insulation material comprises an oven divided into zones, a conveyor for carrying the insulation material through the oven, means for directing hot gases into contact with the insulation material in the first oven zone, first heating means for heating the hot gases, and second heating means, distinct from the first heating means and positioned upstream from the first oven zone for heating the conveyor.
    Type: Grant
    Filed: December 15, 1986
    Date of Patent: April 5, 1988
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Kwan Y. Kim, Yee Lee, James S. Belt
  • Strand treatment
    Patent number: 4735831
    Abstract: A method and applicator for applying a liquid material aftertreatment to a strand. Particularly, the strand is glass fibers or filaments and the aftertreatment is an antistat. The strand lightly touches the applicator at an orifice sufficiently small so that the strand retains essentially all of the liquid antistat. In a preferred embodiment, the orifice angles toward the direction of strand movement.
    Type: Grant
    Filed: March 31, 1986
    Date of Patent: April 5, 1988
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Benjamin M. Rubin, Wayne E. Shaw, Ronald D. Osbirn
  • Method for applying porous, metal oxide coatings to relatively nonporous fibrous substrates
    Patent number: 4732879
    Abstract: A method for applying porous, preferably catalytically active metal oxide coatings to relatively non-porous substrates in a fibrous form, and the catalyst materials thereby obtained. A solution is formed of one or more hydrolyzable precursors of metal oxides, in an anhydrous, organic solvent. The substrate to be coated, having active surface hydroxyl groups and preferably being glass or ceramic, is dipped into the solution and thereafter removed, drained and dried in an atmosphere containing water vapor so as to form a uniform, and at least partially hydrolyzed metal hydroxide/alkoxide coating on the substrate. The thus coated substrate is cured by heating in one or more stages at temperatures in the range of between about 250.degree. and 500.degree. C. to form an adherent, highly porous coating of the corresponding metal oxide.
    Type: Grant
    Filed: November 8, 1985
    Date of Patent: March 22, 1988
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Marie R. Kalinowski, Gary M. Nishioka
  • Apparatus for packaging loose fibrous material
    Patent number: 4716712
    Abstract: The apparatus of each embodiment includes a suction housing having a perforated duct therein. Fibrous material supplied to the inlet of the duct is compacted by air being evacuated through the perforated sidewall of the duct. The continuous compacting of fibrous material aids in moving the already compacted material out the outlet of the duct.
    Type: Grant
    Filed: November 26, 1986
    Date of Patent: January 5, 1988
    Assignee: Owens-Corning Fiberglas Corporation
    Inventor: Gurdev S. Gill
  • Method and apparatus for conveying molten material
    Patent number: 4713106
    Abstract: A vertical standpipe which has an internal fitting. The standpipe conveys a molten glass stream from a molten bath in a furnace forehearth to a spinner below the forehearth. The internal fitting has an orifice positioned so as to maintain a spaced-apart relationship between the interior surface of the standpipe and the molten glass stream issuing from the orifice. The mass flow rate of the molten glass stream is throttled by variable cooling means in the vicinity of the orifice.
    Type: Grant
    Filed: April 18, 1986
    Date of Patent: December 15, 1987
    Assignee: Owens-Corning Fiberglas Corporation
    Inventor: John A. McCague
  • Insulation batt with press-on facing flanges
    Patent number: 4709523
    Abstract: The insulation batt has a facing with a facing flange, the facing flange having pressure-sensitive adhesive thereon and being folded inwardly to engage the pressure-sensitive adhesive with a release strip on the inside of the facing and dispose the facing flange flush with an edge of the batt. For installation of the batt, the facing flange is unfolded outwardly to expose the pressure-sensitive adhesive.
    Type: Grant
    Filed: August 18, 1986
    Date of Patent: December 1, 1987
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Thomas B. Broderick, Donald J. Algrim, Richard F. Hayden