Next To Cellulosic Patents (Class 428/438)
  • Patent number: 5633054
    Abstract: A layered material containing a buffer and optionally containing an adsorbent. The material may also include a vapor barrier. The material is used for the preservation of archival documents and objects.A container configured to permit the long term storage of documents without slippage of the documents or resulting deformation may also be made from the material.
    Type: Grant
    Filed: March 30, 1992
    Date of Patent: May 27, 1997
    Assignee: Conservation Resources International, Inc.
    Inventor: William K. Hollinger, Jr.
  • Patent number: 5505238
    Abstract: A method and apparatus are provided for manufacturing a composite wood product from split and disrupted pieces of a raw material such as cedar, willow or bamboo. The composite may be employed as a thick plate of wood, pillar wood, beam wood and the like used for furniture, buildings, and structural objects. The composite is formed by roughly splitting and disrupting a fibrous raw material lengthwise. The roughly split and disrupted material is then finely split and disrupted, and then dried. A single layer is formed by laterally arranging and adhering the finely split and disrupted wood pieces. The single layers are then formed into a pile and heated and pressure tightened.
    Type: Grant
    Filed: July 20, 1994
    Date of Patent: April 9, 1996
    Assignee: The Forestry and Forest Products Research Institute
    Inventors: Tsuyoshi Fujii, Atsushi Miyatake
  • Patent number: 5470634
    Abstract: A cover for an air-bag installation includes two superimposed layers of polymer material, each layer carrying complementary flanges or fingers, the flanges or fingers of the layers being inter-digitated, leaving no air space between the flanges or fingers.
    Type: Grant
    Filed: January 11, 1993
    Date of Patent: November 28, 1995
    Assignee: Autoliv Development AB
    Inventors: Dan Persson, Jonas Malmenstam
  • Patent number: 5439749
    Abstract: Disclosed is a composite wood structure including (a) first and second spaced layers, and (b) a core interposed between the layers. A sheet-like vapor barrier is between the layers and limits migration of moisture through the barrier to less than about 6 grams per square meter of barrier area per hour. The wood structure is thereby made warp-resistant. In another embodiment, the structure has a vapor barrier on an outer surface and may have one or more additional vapor barriers between structure layers. Preferred vapor barrier materials include melamine formaldehyde impregnated paper, phenol formaldehyde impregnated paper, thermoset materials, thermoplastic materials and aluminum foil.
    Type: Grant
    Filed: August 18, 1994
    Date of Patent: August 8, 1995
    Assignee: Andersen Corporation
    Inventors: Thomas A. Klasell, Leland R. Miller
  • Patent number: 5275859
    Abstract: Disclosed are articles, such as smoke filters, which contain fibers that have complex geometry in combination with tobacco smoke modifying agents such as flavorants. The fibers are preferably made of a polyester such as poly(ethylene terephthalate) and preferably are capable of spontaneously transporting water or n-decane on their surfaces. The articles of the invention result in improved delivery of the tobacco smoke modifying agent to the user.
    Type: Grant
    Filed: December 21, 1992
    Date of Patent: January 4, 1994
    Assignee: Eastman Kodak Company
    Inventors: Bobby M. Phillips, Steven A. Wilson, Mark A. Pollock
  • Patent number: 5182379
    Abstract: Modified cellulose esters are described that are prepared by grafting melamine moieties onto the backbone of cellulose esters. The resulting materials are useful in coating applications for wood, leather, and metal substrates and yield highly solvent-resistant coatings with enhanced properties when heated in the presence of an acid catalyst.
    Type: Grant
    Filed: June 5, 1990
    Date of Patent: January 26, 1993
    Assignee: Eastman Kodak Company
    Inventors: Phillip M. Cook, David S. Kashdan
  • Patent number: 5141799
    Abstract: Abrasion-resistant overlay and multiple layer decor paper sheets suitable for the production of decorative laminates are disclosed comprising an agglomerated abrasion-resistant amorphous silica powder. These overlays and decor sheets reduce caul plate scratching during lamination.
    Type: Grant
    Filed: March 20, 1991
    Date of Patent: August 25, 1992
    Assignee: The Mead Corporation
    Inventors: Mahendra Mehta, Richard D. Brownhill, William M. Stanard, Jr.
  • Patent number: 5135793
    Abstract: A laminate having high strength and excellent resistance to moisture comprised of a fiberglass reinforced polyester panel adhesively attached with a water reactive adhesive to a tempered hardboard panel.
    Type: Grant
    Filed: May 24, 1990
    Date of Patent: August 4, 1992
    Assignee: The Standard Oil Company
    Inventor: Robert P. Socha
  • Patent number: 5082914
    Abstract: The invention describes the preparation and use of cellulose esters grafted with silicon-containing thiol pendent groups which can serve as crosslinking agents during free radical polymerization of ethylenically unsaturated materials. The grafted cellulose esters provide a crosslinked polymeric network with enhanced solvent resistance and hardness properties when used in conjunction with ethylenically unsaturated materials.
    Type: Grant
    Filed: December 15, 1989
    Date of Patent: January 21, 1992
    Assignee: Eastman Kodak Company
    Inventors: Phillip M. Cook, Stephen S. Kelley
  • Patent number: 4990407
    Abstract: A construction of an element adapted to provide fire-resistant support for a relatively fragile and relatively heavy decorative glass member, the construction converting that element into a structural element having in bonded combination a water-felted mineral fiberboard panel, a glass mirror, and a latex-, rubber-base or epoxy waterproof adhesive, the combination being edge-supported on a hung gridwork.
    Type: Grant
    Filed: July 6, 1989
    Date of Patent: February 5, 1991
    Inventor: Edward W. Watras
  • Patent number: 4929483
    Abstract: The method of reinforcing a panel of sheet metal, a shaped plastic body or the like is performed by means of a one- or multi-layer stiffening member of essentially flat shape which comprises a layer at least partially consisting of a thermosetting resin. Thereby, the stiffening member is subjected to a first heat treatment until at least one of the surfaces of the stiffening member is sticky. Thereafter, the stiffening member is applied to the surface of an element to be reinforced. Finally, the stiffening member is subjected to a second, final heat treatment until all layers comprising a thermosetting resin material are cured. Thus, it is not necessary to manually prepare the stiffening member by removing a protection foil from its sticky surface prior to applying it to the element to be reinforced and a fully automated handling is possible.
    Type: Grant
    Filed: June 10, 1988
    Date of Patent: May 29, 1990
    Assignee: Gurit-Essex AG
    Inventors: Paul Halg, Paul Rohrer
  • Patent number: 4900601
    Abstract: The multi-layer body member consists of a support member, e.g. a glass fiber tissue impregnated with a thermosetting resin which is covered by a layer of thermosetting adhesive resin. In order to protect the sticky surface of the adhesive resin, a protection foil made of a meterial shrinking under the influence of heat is provided. The foil comprises slits which open to apertures after a preliminary heat treatment such that an essential portion of the sticky resin surface is freely exposed. Thus, the need to remove the protection foil prior to applying the multi-layer body member to the surface to be reinforced is removed.
    Type: Grant
    Filed: June 10, 1988
    Date of Patent: February 13, 1990
    Assignee: Gurit Essex AG
    Inventors: Paul Halg, Paul Rohrer
  • Patent number: 4897135
    Abstract: A method of reconstructing fixed pipe systems (which cannot be rotated) by applying a fiberglass laminate utilizing overlapping sections.
    Type: Grant
    Filed: December 29, 1987
    Date of Patent: January 30, 1990
    Assignee: Insituform Mid America, Inc.
    Inventors: Harry H. Aylor, Jr., Boyd A. Hirtz
  • Patent number: 4801483
    Abstract: A light weight structural composite comprised of a cellular core having high dynamic load-bearing properties and a fiber reinforced resinous skin on all edges of the core and on the top and bottom surfaces thereof. The cellular core may comprise an array of balsa wood blocks, the skin may comprise a fiberglass reinforced epoxy or polyester resin, and the core and skin may be formed into a monolithic composite which is particularly suitable for use as a high strength to weight ratio ground opening cover.
    Type: Grant
    Filed: February 13, 1987
    Date of Patent: January 31, 1989
    Assignee: Power-Tel Products Group, Inc.
    Inventors: Norton S. Beckerman, William H. Griffin
  • Patent number: 4722866
    Abstract: A composition useful as the core of fire resistant gypsum board and comprising a major amount of set calcined gypsum and minor amounts of whisker fibers, glass fibers and clay.
    Type: Grant
    Filed: May 4, 1987
    Date of Patent: February 2, 1988
    Assignee: Georgia-Pacific Corporation
    Inventors: Glenn E. Wilson, Charles W. Lehnert
  • Patent number: 4705711
    Abstract: Calender roll comprising a cylindrical metal shaft bearing a polyimide cover, wherein the shaft is knurled to eliminate slippage between the shaft and the cover.
    Type: Grant
    Filed: January 30, 1986
    Date of Patent: November 10, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Dominic R. Perna
  • Patent number: 4689257
    Abstract: A method of forming a wood sandwich structure comprising the steps of peeling a bolt of natural wood in spiral form to form a web of wood veneer; forming the wood veneer web into a plurality of sheets of uniform size; forming a plurality of fiberglass sheets having a size corresponding to the size of the wood veneer sheets; and bonding alternate sheets of wood veneer and fiberglass together with a resin to form a remanufactured wood composite sandwich structure comprising alternate sheets of wood veneer and fiberglass bonded together by the resin. Also disclosed is a specific wood sandwich structure for use in boat building; another specific wood sandwich structure especially suitable for use in furniture building; a method of forming a boat hull utilizing a wood sandwich structure according to the invention; and a method of forming furniture utilizing a wood sandwich structure according to the invention.
    Type: Grant
    Filed: March 12, 1985
    Date of Patent: August 25, 1987
    Inventor: Charles S. Baum
  • Patent number: 4656118
    Abstract: An information recording medium comprising in order, a glass substrate; a layer for preventing diffusion of alkali metal ions and alkaline earth metal ions from the substrate; a thermal barrier layer, and an information recording layer for writing and/or reading information by means of laser beam.
    Type: Grant
    Filed: August 30, 1985
    Date of Patent: April 7, 1987
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Shinichiro Ohara, Yohnosuke Takahashi, Kyoichi Naruo, Fumiaki Shinozaki
  • Patent number: 4640864
    Abstract: Facings for plastic foamed construction insulation board are made from paper treated with a treatment comprising about 10% to 100% of the weight of the paper including polymer, water repellant, and fire retardant. A reinforcing scrim may be combined with the paper. The treatment is applied to paper, the scrim is combined with the paper, and foam-forming liquids are applied to the paper to form a facing for a plastic foamed construction insulation board.
    Type: Grant
    Filed: May 4, 1984
    Date of Patent: February 3, 1987
    Assignee: Bay Mills Limited
    Inventor: John F. Porter
  • Patent number: 4615936
    Abstract: A method of forming a wood sandwich structure comprising the steps of peeling a bolt of natural wood in spiral form to form a web of wood veneer; forming the wood veneer web into a plurality of sheets of uniform size; forming a plurality of fiberglass sheets having a size corresponding to the size of the wood veneer sheets; and bonding alternate sheets of wood veneer and fiberglass together with a resin to form a remanufactured wood composite sandwich structure comprising alternate sheets of wood veneer and fiberglass bonded together by the resin. Also disclosed is a specific wood sandwich structure for use in boat building; another specific wood sandwich structure especially suitable for use in furniture building; a method of forming a boat hull utilizing a wood sandwich structure according to the invention; and a method of forming furniture utilizing a wood sandwich structure according to the invention.
    Type: Grant
    Filed: March 12, 1985
    Date of Patent: October 7, 1986
    Inventor: Charles S. Baum
  • Patent number: 4606946
    Abstract: A method is disclosed for applying a powdered interleaving material to a glass surface in the form of an aqueous composition comprising particulate interleaving material dispersed in atomized water.
    Type: Grant
    Filed: July 12, 1985
    Date of Patent: August 19, 1986
    Assignee: PPG Industries, Inc.
    Inventors: Paul F. Duffer, Joseph D. Kelly, Helmut Franz
  • Patent number: 4603686
    Abstract: A conical beam concentrator mounted on the exterior concrete-block wall of a circular building so as to receive diffused sunlight and emit a concentrated convergent lateral beam in the horizontal plane; a curved glass block mounted in the wall so as to transmit the convergent lateral beam through the wall into the crawl space beneath the building; and a circular conical beam concentrator mounted in the crawl space in the center of the building so as to receive the convergent lateral beam, refract the beam twice more and emit a concentrated convergent lateral beam onto a vertical metal heating element which absorbs the heat of the beam and radiates the heat into the crawl space of the building.
    Type: Grant
    Filed: August 28, 1985
    Date of Patent: August 5, 1986
    Inventor: John E. Clegg
  • Patent number: 4568605
    Abstract: A method and composition utilizing porous particulate interleaving material treated with a strong organic acid are disclosed to reduce staining of stacked glass sheets.
    Type: Grant
    Filed: January 30, 1985
    Date of Patent: February 4, 1986
    Assignee: PPG Industries, Inc.
    Inventors: Paul F. Duffer, Helmut Franz, Joseph D. Kelly
  • Patent number: 4543284
    Abstract: A veneer laminate composite structure particularly suitable for use in boat building.
    Type: Grant
    Filed: September 10, 1984
    Date of Patent: September 24, 1985
    Inventor: Charles S. Baum
  • Patent number: 4530889
    Abstract: A method and composition utilizing porous particulate interleaving material treated with a strong organic acid are disclosed to reduce staining of stacked glass sheets.
    Type: Grant
    Filed: January 28, 1981
    Date of Patent: July 23, 1985
    Assignee: PPG Industries, Inc.
    Inventors: Paul F. Duffer, Helmut Franz, Joseph D. Kelly
  • Patent number: 4529648
    Abstract: A method is disclosed for applying a powdered interleaving material to a glass surface in the form of an aqueous slurry.
    Type: Grant
    Filed: January 28, 1981
    Date of Patent: July 16, 1985
    Assignee: PPG Industries, Inc.
    Inventors: Paul F. Duffer, Joseph D. Kelly, Helmut Franz
  • Patent number: 4487807
    Abstract: A method is disclosed for protecting glass surfaces in a stack of glass sheets by treating the surfaces with a mixture of stain-inhibiting organic acids which crystallize on the glass, and separating adjacent surfaces with an interleaving material.
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: December 11, 1984
    Assignee: PPG Industries, Inc.
    Inventors: Paul F. Duffer, Joseph D. Kelly, Helmut Franz
  • Patent number: 4476166
    Abstract: A solventless release coating composition is provided as well as a method for rendering materials nonadherent to other materials which would normally adhere thereto. The coating composition is a precious metal catalyzed silicone composition comprising a vinyl functional polysiloxane base polymer and a methylhydrogen cross-linking agent. A blend of diallylmaleate and vinyl acetate is added to the composition in order to extend the useful pot-life of the product by inhibiting premature cross-linking.
    Type: Grant
    Filed: January 17, 1983
    Date of Patent: October 9, 1984
    Assignee: General Electric Company
    Inventor: Richard P. Eckberg
  • Patent number: 4456649
    Abstract: This invention relates to holt melt adhesives for use in coating and/or laminating paper. Conventional hot melt adhesives used to manufacture a coated or laminated product with good vapor barrier characteristics are based on ingredients compounded with significantly lower proportions of inert low cost filler materials. The present invention provides a hot melt adhesive/coating blend which not only provides a moisture vapor barrier and/or bonding but also significantly reduces the quantity of more expensive ingredients through the use of a large quantity of a lower cost ultra fine ground inert inorganic filler material and a low cost modifying hydrocarbon resin. The blend or composition consists essentially of, in parts by weight, up to about 25 parts of a hi melt point paraffin wax, 10-30 parts of a modifying hydrocarbon resin, 1-20 parts of an elastomeric copolymer, and 20-85 parts of an inert inorganic filler material.
    Type: Grant
    Filed: March 15, 1982
    Date of Patent: June 26, 1984
    Assignee: Manville Service Corporation
    Inventor: Wayne C. Clarke
  • Patent number: 4456657
    Abstract: A metallized, laminated substrate well adapted for the production of printed circuits is comprised of:(A) an electrically insulating support element which comprises (a) a central core member comprising a major proportion by weight of a cellulosic or mica filler and a minor proportion by weight of a thermosetting resin, and (b) and (b') a pair of skin laminae coextensively secured to each face surface, respectively, of said central core (a) each of said skin laminae comprising a fibrous glass, asbestos or heat-stable synthetic polymer reinforcing filler, and a thermosetting resin impregnant, which thermosetting resin may either be the same as or different from the thermosetting resin comprising said central core member (a); and(B) an electrically conducting metal foil (c) coextensively adhered to the exposed face surface of one or the other of said skin laminae (b) or (b').
    Type: Grant
    Filed: October 22, 1981
    Date of Patent: June 26, 1984
    Assignee: Rhone-Poulenc Industries
    Inventors: Robert Cassat, Bruno Vignando
  • Patent number: 4452843
    Abstract: Security papers with luminescing authenticity characteristics built in or printed thereon which absorb in the visible region of the optical spectrum but in the infrared have a transparent region in which the luminophore also emits. By the absorption in the visible undesired parasitic emissions are suppressed which would make the luminophore visually evident on corresponding excitation. For testing the authenticity of the document the emission is investigated in the infrared. Suitable luminophores are rare earth metal luminophores in suitable host lattices, particularly in ferrite lattices or garnet lattices, which contain transition metal ions as absorbing elements.
    Type: Grant
    Filed: October 23, 1981
    Date of Patent: June 5, 1984
    Assignee: GAO Gesellschaft fur Automation und Organisation mbH.
    Inventors: Wittich Kaule, Gerhard Schwenk, Gerhard Stenzel
  • Patent number: 4451521
    Abstract: Security paper with luminescing authenticity characteristics which after excitation with invisible light emit exclusively invisible light of different wavelengths as authenticity signal. The luminophores can be included in the printing ink used or they can be added to the paper material in the manufacture of the paper material. A corresponding test apparatus makes it possible to check the authenticity of the security paper in the presence of customers but unnoticed by them; thereby the invisibility of the test signal and the authenticity signal are taken advantage of and the test device is hidden behind a plate non-transmissive for visible light which however is transmissive for the test signal and for the authenticity signal.
    Type: Grant
    Filed: October 23, 1981
    Date of Patent: May 29, 1984
    Assignee: Gao Gesellschaft fur Automation und Organisation mbH
    Inventors: Wittich Kaule, Gerhard Stenzel
  • Patent number: 4451530
    Abstract: Security papers with luminescing authenticity features worked into them or printed on them. The authenticity features used consist of a luminophore and one or more absorbing materials by which the emission and/or the excitation spectrum of the luminophore is changed in detectable fashion. The dyestuff can be present as an admixture to the luminophore, as a coating of a luminophore layer or as a coating on luminophore powder grains. For checking the authenticity of documents the emission spectrum of the luminophore is not used but the change generated by the technology used in the emission or excitation spectra.
    Type: Grant
    Filed: October 23, 1981
    Date of Patent: May 29, 1984
    Assignee: GAO Gesellschaft fur Automation und Organisation mbH.
    Inventors: Wittich Kaule, Gerhard Schwenk, Gerhard Stenzel
  • Patent number: 4446204
    Abstract: Security paper with authenticity characteristics embodied therein or printed thereon which are both ferrimagnetic and also only slightly absorbed in the infrared spectral region.The presence of both properties at the same position on the security paper is tested, wherein both tests can preferably be carried out simultaneously. Materials which show this rare combination of properties are some ferrites, ferrimagnetic garnet compounds and the so-called green ferromagnetic compounds.
    Type: Grant
    Filed: October 23, 1981
    Date of Patent: May 1, 1984
    Assignee: GAO Gesellschaft fur Automation und Organisation mbH.
    Inventors: Wittich Kaule, Gerhard Schwenk, Gerhard Stenzel
  • Patent number: 4443520
    Abstract: There is disclosed a method of coating combustible material such as wood, plywood, shingles and the like with a flameproofing composition. The method employs a flame coating composition which is a mixture of a thermoplastic, ambient-temperature, film former such as a polyvinyl acrylic acetate latex, and alumina trihydrate and glass fibers. The ambient temperature film former is a conventional latex used for coating compositions and should have the property of softening at or below the dehydration temperature of alumina trihydrate (about 280 degrees F.) and be capable of forming a stable foam at such temperatures. The alumina, which comprises the major portion of the coating composition, dehydrates when subjected to flame temperatures and the water vapor released from the alumina forms a stable foam.
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: April 17, 1984
    Inventor: Charles H. Braithwaite, Jr.
  • Patent number: 4442170
    Abstract: Security paper with narrow band luminescing authenticity characteristics which can only be excited in substantially the same wavelength region in which it also emits. With these authenticity characteristics therefore the authenticity signal is overlapped or covered by the test signal of several orders of magnitude stronger. The authenticity of the security papers cannot accordingly be tested with the normal processes or devices for determining of luminescence. The test devices used take advantage of the decay behavior of the luminescence emission for detection. The authenticity characteristics can be added to the paper material, the printing ink used, further mottling fibres or security threads.
    Type: Grant
    Filed: October 23, 1981
    Date of Patent: April 10, 1984
    Assignee: GAO Gesellschaft fur Automation und Organisation mbH.
    Inventors: Wittich Kaule, Gerhard Schwenk, Gerhard Stenzel
  • Patent number: 4379553
    Abstract: An improvement in a bowling lane having a decorative laminate surface which improvement comprises incorporating into the core of the laminate a plurality of alternating layers of glass cloth and crepe paper, each core layer being impregnated with a thermosetting resin and an organic fire retardant material, contiguous and adjacent core layers being interlaminarly bonded to one another.
    Type: Grant
    Filed: October 28, 1981
    Date of Patent: April 12, 1983
    Assignee: General Electric Company
    Inventor: Peter B. Kelly
  • Patent number: 4379808
    Abstract: A sheet type forming board for use in heat forming processes without the need for pre-soaking or pre-steaming required of prior hardboard materials. The forming board sheet has at least one layer containing cellulose fibers, a polyolefin, and an inorganic filler. Its moisture content is preferably 4-12%. A multi-layered sheet, wherein plys are joined together, is typically used to achieve the desired thickness and composite sheet composition. The formed products are light weight and have a number of desirable advantages, including rigidity, embossing and graining fidelity, and dielectric processability.
    Type: Grant
    Filed: June 30, 1980
    Date of Patent: April 12, 1983
    Assignee: The Mead Corporation
    Inventors: John N. Cole, David A. Hettel
  • Patent number: 4364990
    Abstract: Improved construction material especially suitable for use in the manufacture of soundboards and panels used in stringed instruments which equal or surpass the sound radiation qualities and physical properties of wood. The construction material of the invention includes fibers having a Young's modulus of elasticity greater than 18.times.10.sup.11 dynes/cm.sup.2 and a density less than 2 g/cc bonded to a material having a density lying within the range of 0.15 g/cc and 1 g/cc, the said fibers of the composite are oriented in such manner so as to provide a final material having a bending stiffness ratio of at least 4:1.
    Type: Grant
    Filed: March 31, 1975
    Date of Patent: December 21, 1982
    Assignee: The University of South Carolina
    Inventor: Daniel W. Haines
  • Patent number: 4340524
    Abstract: Acrylic latex sealants are rendered water-resistant and have improved wet adhesion to a variety of substrates by incorporating hydrophobic resins and an aminosilane hydrolyzate therein.
    Type: Grant
    Filed: June 30, 1980
    Date of Patent: July 20, 1982
    Assignee: Union Carbide Corporation
    Inventor: Allan R. Bullman
  • Patent number: 4340647
    Abstract: There are provided addition-curable silicone release compositions comprised of a vinyl or silanol functional polymer base, a crosslinker containing silanic hydrogen, a precious metal catalyst such as platinum or rhodium, an optional carboxylic ester inhgibitor and silicone vinyl gum cure accelerations effective for allowing thermal cure at relatively lower temperatures while minimizing the necessity of excess metal catalyst.
    Type: Grant
    Filed: May 22, 1981
    Date of Patent: July 20, 1982
    Assignee: General Electric Company
    Inventor: Richard P. Eckberg
  • Patent number: 4337290
    Abstract: An improvement in a bowling lane having a decorative laminate surface which improvement comprises incorporating into the core of the laminate a plurality of alternating layers of glass cloth impregnated with a thermosetting resin and crepe paper also impregnated with a thermosetting resin, the glass cloth and crepe paper being interlaminarily bonded to one another.
    Type: Grant
    Filed: November 16, 1979
    Date of Patent: June 29, 1982
    Assignee: General Electric Company
    Inventors: Peter B. Kelly, Edward R. Heagle
  • Patent number: 4296169
    Abstract: A board comprising: two sheets of paper spaced apart and bonded to a core of inorganic cementitious material, said core having a network of glass monofilaments jack-strawed into a three-dimensional water transmitting network extending between its surfaces, and at least one of said layers of paper having a network of glass monofilaments jack-strawed into a water transmitting network that extends between its major surfaces with said network in said paper being in water transmitting contact with said network of said core. Preferably the core is gypsum having a density of about 40-65 pounds per cubic foot.
    Type: Grant
    Filed: February 4, 1980
    Date of Patent: October 20, 1981
    Assignee: Owens-Corning Fiberglas Corporation
    Inventor: Richard F. Shannon
  • Patent number: 4290869
    Abstract: Photopolymerizable, liquid, storage stable organopolysiloxanes having viscosities of from 60 mPa.s to 2,000 mPa.s at 25.degree. C., are prepared by reacting (i) an .alpha.,.omega.-dihydroxydiorganopolysiloxane oil having a viscosity ranging from about 70 to 500 mPa.s at 25.degree. C., with (ii) a silane having the formula Z(G)SiR.sub.a (Q).sub.3-a wherein Z is CH.sub.2 .dbd.C(R')--COO-- or HS--, and further wherein the symbols R, which may be the same or different, are methyl, ethyl, n-propyl, vinyl or phenyl, R' is hydrogen or methyl, the symbols Q, which may be the same or different, are methoxy, ethoxy, n-propoxy, .beta.-methoxyethoxy and, when any two are taken together, the divalent radical --O--(CH.sub.3).sub.2 --C(CH.sub.3).sub.2 --O--, G is a linear or branched chain alkylene radical having from 1 to 8 carbons, and a is a number ranging from 0 to 2; and with the molar ratio of the hydroxyl functions comprising the oil (i) to the Q radicals comprising the silane (ii) ranging from 0.1 to 0.95.
    Type: Grant
    Filed: January 23, 1980
    Date of Patent: September 22, 1981
    Assignee: Rhone-Poulenc Industries
    Inventor: Raymond Pigeon
  • Patent number: 4284538
    Abstract: A sizing composition is provided for glass fibers to render the glass fibers more dispersible in aqueous solutions. The sizing composition has present an aqueous dispersion of cationic imidazoline; aliphatic, aromatic and/or polymeric ester; and polyethylene in an amount equivalent to an amount in the range of about 0.1 to about 1.5 weight percent of the aqueous sizing composition based on an approximately 30 percent active aqueous dispersion. The sizing composition may also contain, depending on the use, other components such as starch, lubricant, emulsifying agents, wetting agents, plasticizers, biocides and the like.
    Type: Grant
    Filed: June 21, 1979
    Date of Patent: August 18, 1981
    Assignee: PPG Industries, Inc.
    Inventor: Roy R. Graham
  • Patent number: 4273822
    Abstract: A glazing paste comprising glass frit, a metal oxide powder selected from the group consisting of aluminum oxide (Al.sub.2 O.sub.3), magnesium oxide (MgO), calcium oxide (CaO), and zinc oxide, (ZnO), and an organic vehicle.
    Type: Grant
    Filed: July 18, 1977
    Date of Patent: June 16, 1981
    Assignee: RCA Corporation
    Inventor: Kenneth R. Bube
  • Patent number: 4271649
    Abstract: A structural panel such as a door for a railway freight car has a lightweight core formed by two sheets of low density material e.g. balsa wood. Each sheet has bonded to one side a series of layers of glass fibre, and the sheets are bonded together in confronting relationship to form the panel. The glass fibre layers extend around the edges of the panel which edges are further reinforced by a channel-shaped plastics edging member.
    Type: Grant
    Filed: April 9, 1979
    Date of Patent: June 9, 1981
    Assignee: Bombardier Limited
    Inventor: Germain Belanger
  • Patent number: 4210692
    Abstract: The present invention relates to a novel sheet adapted to be adhered to and form the outer layer of a wood article, said sheet being made from a furnish comprising, for each 100 parts by weight, from about 10 to 25 parts synthetic pulp, 10 to 25 parts by weight mineral fiber, 0.1 to 2 parts size, 0.1 to 2 parts wet strength agent, and 79.8 to 46 parts wood fiber and to laminates comprising a wood core and said sheet adhered to at least one surface of said core.
    Type: Grant
    Filed: November 17, 1978
    Date of Patent: July 1, 1980
    Assignee: Champion International Corporation
    Inventors: Reinhard D. Bohme, Robert O. Ragan
  • Patent number: 4190698
    Abstract: A light-transmitting fire screening panel comprising at least one sheet of glass and at least one layer of intumescent material, the improvement which comprises utilizing in the layer a hydrated alkali metal silicate as intumescent material and one or more adjuvants selected from: urea, polyhydric alcohol (including glycerine, ethylene glycol and sorbitol), monosaccharide (including glucose), polysaccharide (including starch), sodium phosphate, sodium aluminate, aluminum phosphate, borax, boric acid and colloidal silica.
    Type: Grant
    Filed: July 28, 1978
    Date of Patent: February 26, 1980
    Assignee: BFG Glassgroup
    Inventors: Marcel De Boel, Pol Baudin
  • Patent number: RE31727
    Abstract: There are provided addition-curable silicone release compositions comprised of a vinyl or silanol functional polymer base, a crosslinker containing silanic hydrogen, a precious metal catalyst such as platinum or rhodium, an optional carboxylic ester inhgibitor and silicone vinyl gum cure accelerations effective for allowing thermal cure at relatively lower temperatures while minimizing the necessity of excess metal catalyst.
    Type: Grant
    Filed: October 14, 1982
    Date of Patent: November 6, 1984
    Assignee: General Electric Company
    Inventor: Richard P. Eckberg