Synthetic Resin, Natural Resin, Or Asphalt Coating Patents (Class 65/447)
  • Patent number: 8923681
    Abstract: An optical fiber core having a primary layer and a secondary layer, which are laminated on a bare optical fiber. The primary layer is formed by curing an ultraviolet-curable resin composition containing a first silane coupling agent, which can be incorporated into a resin skeleton, and a second silane coupling agent, which cannot be incorporated into a resin skeleton. The first silane coupling agent contains a compound having a methoxy group, and the second silane coupling agent contains a compound having an ethoxy group.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: December 30, 2014
    Assignee: Fujikura Ltd.
    Inventors: Akira Namazue, Akira Murata, Mizuki Isaji
  • Patent number: 7886562
    Abstract: The present invention relates to a process for producing glass strands coated with a hot-melt size, whereby molten glass streams, flowing out of orifices located in the base of one or more bushings, are drawn in the form of one or more sheets of continuous filaments, the filaments are then assembled into one or more strands that are collected on one or more moving supports, this process consisting in depositing a first composition containing a coupling agent on the glass filaments and then in depositing a second composition comprising a hot-melt polymer in the melt state, at the latest during assembly of the filaments into one or more strands. It also relates to the glass strands obtained according to this process and to the composites containing said strands.
    Type: Grant
    Filed: March 17, 2004
    Date of Patent: February 15, 2011
    Assignee: Saint-Gobain Technical fabrics Europe
    Inventors: Bruno Gas, Herve Bourgeoisat, Yvan Besson, Daniel Richard
  • Patent number: 7419721
    Abstract: The present invention is directed to sizing compositions for glass fibers and glass fiber reinforced thermoplastic resins. The sizing composition comprises a maleic anhydride copolymer. Thermoplastic polyamide resin articles reinforced with glass fibers at least partially coated with a residue of the sizing composition can demonstrate a surprising improvement in strength of the reinforced polyamide resin when lubricated with a fatty acid metal salt and in the hydrolysis resistance when exposed to boiling water/ethylene glycol medium.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: September 2, 2008
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Henri Beerda, Ronald Boelman, Jacob Cornelis Dijt, Bertho van de Heisteeg, Johannes Leonardus Tabak
  • Patent number: 7267782
    Abstract: A two-part sizing composition including a precursor size composition and a binder composition, the binder composition being substantially free of any aminosilane coupling agent for is provided for the production of reinforcing fiber materials that exhibit little or no coloration. The two-part sizing composition may be advantageously employed to make substantially colorless, densified fiber pellets of a reinforcing fiber material. The densified fiber pellets may be produced by applying the sizing composition to reinforcing fiber strands, chopping the reinforcing fiber strands to form chopped strand segments, applying the binder composition, and palletizing and densifying the coated chopped strand segments to form flowable densified fiber pellets.
    Type: Grant
    Filed: June 19, 2003
    Date of Patent: September 11, 2007
    Assignee: Owens-Corning Fiberglas Technology II, LLC
    Inventors: Willy H. Piret, Nadia Masson
  • Patent number: 7129289
    Abstract: A two-part sizing composition that imparts improved resistance to hydrolysis of reinforced composites including a size composition and a binder composition is provided. The size composition may include one or more coupling agents, one or more lubricants, and at least one wetting agent. The binder composition may include a copolymer formed from maleic anhydride and at least one other copolymerizable monomer, at least one crosslinking agent, and a surfactant or mixture of surfactants. In at least one exemplary embodiment, the maleic anhydride copolymer is a maleic anhydride-butadiene copolymer partial ammonium salt. The size composition may be applied to a reinforcing fiber material before the binder size material is applied. The two-part size composition may be applied to a reinforcing fiber material to form a reinforcing fiber product which may then be densified or compacted to form a densified reinforcing fiber product, such as a pellet.
    Type: Grant
    Filed: March 19, 2004
    Date of Patent: October 31, 2006
    Assignee: Owens Corning Composites S.P.R.L.
    Inventors: Willy H. Piret, Nadia Masson
  • Patent number: 7083855
    Abstract: A binder slurry for a continuous filament mat used in a phenolic pultrusion system comprising a phenolic compatible silane, a non-ionic surfactant, a defoamer, water, an organic acid and a bisphenol epoxy powdered resin having a thermally active dicyandiamide cross-linking resin. The binder slurry resin is unique in that the bisphenol epoxy powdered resin having a thermally active dicyandiamide cross-linking resin is compatable with presently available phenolic resins, and as such pultruded parts made have improved surface and mechanical properties as compared with traditional polyester type binder slurries which are not compatable with phenolic resins. Continuous filament mats made with the new binder slurry also may also be made into epoxy prepreg that can be used to make composite parts.
    Type: Grant
    Filed: March 7, 2003
    Date of Patent: August 1, 2006
    Assignee: Owens Corning Fiberglass Technology, Inc.
    Inventors: Adrian C. Lane, Jeffrey L. Antle
  • Patent number: 6939386
    Abstract: A filter medium for an air filter, characterized in that it comprises a filter material having a glass fiber as its primary component and an alkyl ketene dimer adhered to the surface of the glass fiber; and a method for producing the filter medium which comprises a step of subjecting a dispersed slurry of a raw material fiber to a wet papermaking to form a wet paper, a step of immersing the wet paper in an aqueous dispersion or solution of the dimer or a liquid mixture of the dimer and a binder resin, or applying or spraying any of the above-mentioned liquids to the wet paper, to thereby allow the dimer to adhere onto the surface of the glass fiber, and a step of drying the resultant wet paper having the dimer adhered thereto. The filter medium exhibits a reduced amount of an out gas generated when it is used with ventilation and also exhibits high water-repellency and satisfactory strength in various applications such as air conditioning of a building and semiconductor manufacturing.
    Type: Grant
    Filed: July 11, 2001
    Date of Patent: September 6, 2005
    Assignee: Hokuetsu Paper Mills, Ltd.
    Inventors: Masashi Sato, Toshihiko Soyama
  • Patent number: 6837074
    Abstract: A method of measuring the twist imparted to an optical fibre includes the steps of advancing the optical fibre in a predetermined direction and at a predetermined velocity, imparting to the optical fibre, during the step of advancing, a twist about its axis, measuring the diameter of the optical fibre during the step of advancing, to generate a time-based signal indicating the diameter, and processing this signal to find a value indicating the imparted twist. The step of processing includes the principal steps of transforming in the frequency domain the signal relating to the measurement of the diameter, calculating the power spectrum of the signal thus obtained, distinguishing in this power spectrum the signal peaks correlated with the imparted twist, determining the maximum frequency associated with these signal peaks, and dividing the value of this maximum frequency by the value of the velocity of advance of the fibre to find the value indicating the imparted twist.
    Type: Grant
    Filed: April 29, 2002
    Date of Patent: January 4, 2005
    Assignee: Pirelli Cavi e Sistemi S.p.A.
    Inventors: Franco Cocchini, Arturo Ricco
  • Publication number: 20040244427
    Abstract: A method for producing zero-twist glass yarn employing a special sizing agent for sizing procedure during spinning process that enables a loss on ignition of the special sizing agent which makes up 0.8˜1.6 Wt % of the glass yarn and a moisture content less than 0.2% of the glass yarn after drying the forming package formed through spinning, sizing and winding procedure with which the zero-twist glass yarn is obtained without need of twist fixing process; moreover, the zero-twist glass yarn produced therefrom possesses the tensile strength better than that of the conventional twisted glass yarn, and, when used as weft yarn, may substantially increase the tensile strength of the glass fabric.
    Type: Application
    Filed: June 1, 2004
    Publication date: December 9, 2004
    Applicant: PFG FIBER GLASS CORPORATION
    Inventor: C.F. Charles Lee
  • Publication number: 20040074262
    Abstract: Provided is a process and apparatus for applying a liquid binder to fibers. The process involves introducing heat curable liquid binder onto moving fibers by atomizing the liquid binder and applying the atomized binder from a point within the moving column of fibers. Better binder efficiency and a more efficient overall process is realized.
    Type: Application
    Filed: October 21, 2002
    Publication date: April 22, 2004
    Inventors: Philip Francis Miele, Don August Forte, Roy V. Pogue
  • Publication number: 20040014586
    Abstract: A glass composition to be used for manufacturing inorganic fiber has a composition that entirely or partly eliminates the use of expensive boron oxide that is employed to lower the glass softening point and the viscosity. The glass composition contains 45 to 75 wt % of SiO2, 1 to 6 wt % of Al2O3, 0 to 4 wt % of MgO, 0 to 15 wt % of CaO, 0 to 6 wt % of B2O3, 0.1 to 10 wt % of BaO, 0.1 to 25 wt % of SrO, 5 to 17 wt % of Na2O, 0.5 to 10 wt % of K2O and 0 to 3.5 wt % of Fe2O3.
    Type: Application
    Filed: April 10, 2003
    Publication date: January 22, 2004
    Inventors: Keiji Otaki, Yukiyoshi Shinobu, Naoko Baba
  • Publication number: 20030221458
    Abstract: A neutralization system for controlling the pH of the washwater used to clean and maintain polyacrylic bound glass forming equipment. The neutralization system introduces a base solution to a washwater solution when the pH of the washwater solution contained in a closed loop washwater recovery system falls below about 8.5, thereby substantially reducing the corrosion rate of the components of the equipment associated with acidic polyacrylic acid binder, maleic acid cobinder or maleic anhydride cobinder and washwater solution. A closed-loop hoodwall washwater recovery system may also be introduced in addition to the neutralization system that allows for the recovery and reuse of polyacrylic acid binder and maleic acid cobinder or maleic anhydride cobinder with a minimal amount of base solution, thereby minimizing degradation of insulation properties of polyacylic acid bound glass fiber products.
    Type: Application
    Filed: December 31, 2002
    Publication date: December 4, 2003
    Inventors: Harry B. Cline, William E. Downey, Liang Chen, Kathleen M. Bullock, Kevin S. Guigley, Yadollah Delaviz, William R. Cooper, Bobby R. Gibson, Michael P. Lewis, Michael V. Mager
  • Publication number: 20030221457
    Abstract: A neutralization system for controlling the pH of the washwater used to clean and maintain polyacrylic bound glass forming equipment. The neutralization system introduces a base solution to a washwater solution when the pH of the washwater solution contained in a closed loop washwater recovery system falls below approximately 8.0, thereby substantially reducing the corrosion rate of the components of the equipment associated with acidic polyacrylic acid binder and washwater solution. A closed-loop hoodwall washwater recovery system may also be introduced in addition to the neutralization system that allows for the recovery and reuse of polyacrylic acid binder with a minimal amount of base solution, thereby minimizing degradation of insulation properties of polyacylic acid bound glass fiber products.
    Type: Application
    Filed: May 31, 2002
    Publication date: December 4, 2003
    Inventors: Harry B. Cline, William E. Downey, Liang Chen, William R. Cooper
  • Publication number: 20030041625
    Abstract: Reinforced fiber insulation is formed by depositing a mixture of textile fiber segments and rotary and/or flame attenuated segments on a surface, mixing a binder with the fibers, and heating the binder to join the fibers together. The low cost process provides a mixed fiber insulation product with improved strength after compression.
    Type: Application
    Filed: September 6, 2001
    Publication date: March 6, 2003
    Applicant: CERTAINTEED CORPORATION
    Inventors: John O. Ruid, Kurt Mankell, Alain Yang, Wayne Shaw
  • Patent number: 6322888
    Abstract: A process for producing sized glass yarns, which entails: a) drawing streams of molten glass from orifices located at a bottom of one or more dies, in a form of one or more fans of continuous filaments, b) assembling the filaments into one or more moving supports, wherein a first stable composition having a viscosity of between 0.5 and 250 cP is deposited onto the surface of the continuous filaments, and a second stable composition, supplied separately from the first and having a viscosity of between 0.5 and 300 cP, is deposited onto the surface of the filaments of the yarns, at the earliest during deposition of the first composition and at the latest during collection of the years, the difference in viscosity between the two compositions deposited being less than 150 cP, the mixture of the deposited compositions functioning as a sizing composition and being polymerizable at room temperature.
    Type: Grant
    Filed: September 3, 1999
    Date of Patent: November 27, 2001
    Assignee: Vetrotex France
    Inventors: Patrick Moireau, Bruno Gibello, Marc Roubin
  • Patent number: 6185962
    Abstract: A method is disclosed for forming coated fibers suitable for making a composite article. A plurality of fibers are coated with an aqueous- or non-aqueous-based chemical treatment containing a curable resin such that the resin on the fibers is in a partially cured or uncured state. The coated fibers may then be formed into a composite article in a subsequent forming operation, for example, by filament winding, pultrusion, weaving, knitting, or extrusion coating. The strand of fibers may also be shaped into a preform which can be used in resin transfer molding (RTM) and injection molding processes.
    Type: Grant
    Filed: May 23, 1997
    Date of Patent: February 13, 2001
    Assignee: Owens Corning Fiberglas Technology, Inc.
    Inventors: David R. Hartman, David L. Shipp, Andrew B. Woodside, Joan T. Muellerleile
  • Patent number: 6185963
    Abstract: The invention relates to a process for manufacturing continuous a glass fiber strand. The process consists in depositing on the glass filaments which are in the process of being drawn a sizing composition consisting of a solution of which the solvent content is less than 5 wt %, the solution comprising a mixture of constituents which can be polymerized and/or crosslinked by heat treatment, at least 60 wt % of the constituents being constituents of which the molecular weight (Mw) is less than 750, less than 10 weight % being film-forming agents and 0 to 25 weight % being coupling agents, lubricants, stabilizers and initiators and/or catalysts, it being possible if necessary for the agent to be polymerized and/or crosslinked by heat treatment, in winding the strand or strands, formed by collection of the filaments, on a rotating support so as to form a wound package consisting of turns of strand coated with a non-polymerized sizing composition.
    Type: Grant
    Filed: September 18, 1997
    Date of Patent: February 13, 2001
    Assignee: Vetrotex France
    Inventors: Patrick Moireau, Timothy Johnson
  • Patent number: 6131416
    Abstract: A method for high velocity coating optical fibers includes passing a fiber with diameter l at velocity V through a coating container to which liquid coating material with viscosity .mu. is supplied under pressure p. Unwanted bubble formation in the coating is prevented by adjusting one or more of the parameters V, l, .mu., and p using the relationship:S=pl/.mu.Vwhere S is a constant characteristic of the coating container/die structure.
    Type: Grant
    Filed: February 8, 1999
    Date of Patent: October 17, 2000
    Assignee: Lucent Technologies Inc.
    Inventors: Valerie Jeanne Kuck, Peter Gerald Simpkins
  • Patent number: 6099910
    Abstract: In one general aspect, the invention involves applying a chemical treatment to fibers, such as reinforcing fibers suitable for making a composite article, so as to size and/or preimpregnate the fibers. The chemical treatment has a relatively low viscosity and is substantially solvent-free and non-radiation curable. Heat energy may be employed to lower the viscosity and improve the wetting ability of the applied treatment and/or to increase the molecular weight of, or otherwise cure, the treatment with essentially no generation of solvent vapor. The treated fibers are used to form a composite strand, which may be subsequently processed in-line or off-line into a composite article having fibers disposed in a polymeric matrix. Another general aspect relates to encased composite strands, in thread or pellet form, and to wire-coating methods and apparatus for making them. The strands are moldable into fiber-reinforced thermoplastic composite articles.
    Type: Grant
    Filed: August 12, 1996
    Date of Patent: August 8, 2000
    Assignee: Owens Fiberglas Technology, Inc.
    Inventor: Andrew B. Woodside
  • Patent number: 6030664
    Abstract: A method and apparatus for high velocity dual coating optical fibers includes passing the fiber to be coated through an entrance die into a coating reservoir, to which liquid coating material is supplied under pressure. The diameter of the die passage and the pressure of the fluid is sufficient to prevent air from entering the reservoir. The coated fiber is passed through a centering and sizing die wherein the recirculation of excess coating material is controlled to produce centering forces on the fiber at the high fiber velocity, and wherein the initial coating is sized. The fiber is then passed through a second coating reservoir into an exit die which sizes the second coating. Upon leaving the exit die, the coatings are cured.
    Type: Grant
    Filed: July 15, 1998
    Date of Patent: February 29, 2000
    Assignee: Lucent Technologies Inc.
    Inventors: Frank V. DiMarcello, Arthur C. Hart, Richard G. Huff, Karen S. Kranz, Lisa M. Larsen-Moss
  • Patent number: 5961685
    Abstract: A sizing applicator is provided for applying a coating of sizing composition to glass fibers. The sizing applicator includes a housing and a roll applicator which is rotatably coupled to the housing. The housing has a supply port adapted to receive sizing composition from a sizing supply source, an exit slot and a passageway extending from the supply port to the exit slot. The passageway receives sizing composition from the supply port and delivers the sizing composition to the exit slot such that the sizing composition exits the housing and is received on an outer surface of the roll applicator. The roll applicator is spaced from the housing such that the housing does not substantially contact the sizing composition once it is received on the roll applicator.
    Type: Grant
    Filed: March 14, 1997
    Date of Patent: October 5, 1999
    Assignee: Owens Corning Fiberglass Technology, Inc.
    Inventors: Arlo F. Streets, Thomas O. Matteson, Martin C. Flautt
  • Patent number: 5916679
    Abstract: A method is disclosed for forming pre-impregnated fibers suitable for making a composite article. A plurality of fibers (14) are pre-impregnated with about 50% by weight of an aqueous-based chemical treatment containing a curable resin, and then contacted with a drying device (41) which effects drying of the chemical treatment without effecting full curing of the resin. The pre-impregnated fibers may then be formed into a composite article in a subsequent forming operation, for example, by filament winding, pultrusion, weaving, knitting, or extrusion coating.
    Type: Grant
    Filed: August 3, 1998
    Date of Patent: June 29, 1999
    Assignee: Owens Corning Fiberglas Technology, Inc.
    Inventors: Andrew B. Woodside, Joan T. Muellerleile, David R. Hartman
  • Patent number: 5843231
    Abstract: A bubble stripping and coating apparatus for stripping entrained gas from the surface of a fiber, then coating the fiber with a coating material having a bubble stripping and coater body and a die assembly. The bubble stripping and coater body has a bubble stripping gas entrance for providing a bubble stripping argon gas to a bubble stripping gas chamber for stripping entrained gas from the fiber and having a die assembly bore. The die assembly is arranged in the die assembly bore, and has a guide die having a lower guide die opening with a diameter of less than 0.016 inches.
    Type: Grant
    Filed: September 24, 1996
    Date of Patent: December 1, 1998
    Assignee: Alcatel Telecommunications Cable
    Inventors: Robert A. Spencer, David C. Lam, Duane A. Felton
  • Patent number: 5810902
    Abstract: In a process of making gas laid products by entraining particles including fibers at least partially coated with a binder in a gaseous stream, passing the stream through a forming chamber and through a permeable collecting surface where the particles including fibers build up to form a product like fiber glass insulation, this invention prevents particles including fibers from contacting and building up on the walls of the forming chamber and causing wet spots in the finished product by maintaining a high velocity, high pressure layer of gas close to the exposed surface of the walls of the chamber and moving in the general direction of the gaseous stream. This is accomplished by apparatus including a plurality of plenum boxes forming the walls of the forming chamber with the surface exposed to the gaseous stream having gas directing openings therein.
    Type: Grant
    Filed: November 21, 1996
    Date of Patent: September 22, 1998
    Assignee: Johns Manville International, Inc.
    Inventors: Jimmy Gene Brown, Michael Terricks McKibben, Edward Lee Hite, Kenneth Andrew Clocksin
  • Patent number: 5795365
    Abstract: A thread is formed of one or a plurality of fans of continuous filaments on which a sizing composition is deposited. The moisture content on the thread is controlled by subjecting the fans of filaments to a current of air transversely to the direction of movement of the filaments between the zone in which the size is deposited and the zone in which the filaments are gathered together.
    Type: Grant
    Filed: June 6, 1997
    Date of Patent: August 18, 1998
    Assignee: Vetrotex France
    Inventors: Yvan Salvador, Dominique Gerard, Eric Huet
  • Patent number: 5779758
    Abstract: An apparatus is provided for producing a glass fiber package. The apparatus includes a heated bushing for supplying streams of molten glass to be drawn into continuous fibers, a rotatable member adapted to draw the streams into fibers and to wind the fibers into a package, an applicator for applying a size to the fibers, and a drying device including a heated element maintained at a temperature of between about 1000.degree. F. and 1500.degree. F. for contacting and transferring energy in the form of heat to the sized fibers to dry the fibers before they are wound into the package. The heating member is stationary while contacting the sized fibers.
    Type: Grant
    Filed: May 17, 1996
    Date of Patent: July 14, 1998
    Assignee: Owens-Corning Fiberglas Technology, Inc.
    Inventors: Douglas B. Mann, Leonard J. Adzima, Martin C. Flautt
  • Patent number: 5698000
    Abstract: The invention relates to a process for manufacturing continuous a glass fiber strand.The process consists in depositing on the glass filaments which are in the process of being drawn a sizing composition of which the solvent content is less than 5 wt % of solvent selected from organic solvent and water, the solution comprising at least 70 wt % of a mixture of constituents which can be polymerized and/or crosslinked by heat treatment, at least 60 wt % of the constituents being constituents of which the molecular weight (Mw) is less than 750, less than 10 weight % being film-forming agents and 0 to 25 weight % being coupling agents, lubricants, stabilizers and initiators and/or catalysts, and in winding the strand or strands, formed by collection of the filaments, on a rotating support so as to form a wound package consisting of turns of strand coated with a non-polymerized sizing composition.The strands are intended to reinforce thermoplastic or thermosetting organic substrates or substances of mineral origin.
    Type: Grant
    Filed: December 8, 1994
    Date of Patent: December 16, 1997
    Assignee: Vetrotex France
    Inventors: Patrick Moireau, Timothy Johnson
  • Patent number: 5611836
    Abstract: The invention relates to a method of producing glass strands, the method comprising coating glass strands with a heat-polymerizable composition constituted by a solution with a solvent content of less than 5% by weight and a viscosity of less than 400 cP, the solution comprising a basic structure which can be polymerized or cross-linked thermally, the structure comprising at least 60% by weight of one or more components with molecular weights of less than 750, having at least one acrylic and/or methacrylic and/or vinyl other and/or N-vinylamide and/or N-vinyllactam function, the proportion of polyfunctional components within these components being at least 45% by weight of these components, so as to produce glass strands coated with a non-polymerized, heat-polymerizable composition.
    Type: Grant
    Filed: December 8, 1994
    Date of Patent: March 18, 1997
    Assignee: Vetrotex France
    Inventor: Patrick Moireau
  • Patent number: 5593736
    Abstract: The invention provides a process for fabricating a fiber optic microcable mposed of materials having properties which facilitate its manufacture. The microcable is comprised of an optical fiber core, a buffer surrounding the core, and a protective sheath surrounding the buffer consisting of an electromagnetic radiation cured resin impregnated with fibers suspended in the resin to enhance the resistance of the microcable to physical damage. The microcable is fabricated by soaking the fibers in an electromagnetic radiation curable resin, placing the wetted fibers around the core and buffer to form a matrix, and then irradiating the matrix with electromagnetic radiation to cure the resin.
    Type: Grant
    Filed: May 26, 1988
    Date of Patent: January 14, 1997
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Steven J. Cowen, Christopher M. Young, James H. Dombrowski, Michael E. Kono, James H. Daughtry
  • Patent number: 5416880
    Abstract: The use of an ethylenically-terminated urethane oligomer for the provision of a radiation-cured coating material of an optical fiber, the urethane oligomer being derived from reactants which include a hydroxyl-terminated polyester polyol having dimer acid residues in its structure.
    Type: Grant
    Filed: March 28, 1994
    Date of Patent: May 16, 1995
    Assignee: Zeneca Limited
    Inventors: Martin R. Edwards, Julie A. Waller, Stephen Byrne