With Deputer, Draw Ring, Or Draw Shield Patents (Class 65/344)
  • Patent number: 6883350
    Abstract: A hot forming unit or debiteuse for plate glass production, with a noble metal box or frame encompassed by and contained in a highly heat-resistant ceramic frame and having a drawing slot matched to a cross section of a plate glass sheet to be produced. The dimensional integrity of the drawing slot of the noble metal frame is assured because the ceramic frame is constructed of longitudinal components and lateral components, where the longitudinal components of the ceramic frame and the longitudinal legs of the noble metal box rest against one another and are held so that they can still move axially against each other in a limited fashion. The longitudinal legs of the noble metal box are held in a stretched position by tension springs.
    Type: Grant
    Filed: July 26, 2002
    Date of Patent: April 26, 2005
    Assignee: Schott AG
    Inventors: Erich Rodek, Wolfgang Muench, Carsten Weinhold, Rudolf Singer
  • Patent number: 5328493
    Abstract: Drawing, from a first installation, organic filaments in the form of one or more layers which converge toward a same point, and drawing, from a second installation, glass filaments which are joined together to form at least one strand. Guiding structure is provided to laterally introduce the glass strand into the area defined by the organic filaments before it is combined with the filaments at their point of convergence. A blowing device (48, 36) is also provided either outside or inside the area defined by the organic fibers.
    Type: Grant
    Filed: March 17, 1992
    Date of Patent: July 12, 1994
    Assignee: Vetrotex France
    Inventors: Giordano Roncato, Robert Fedorowsky, Philippe Boissonnat, Dominique Loubinoux
  • Patent number: 5316561
    Abstract: An apparatus for manufacturing a strand composed of organic filaments and glass filaments for use in the production of composite materials. This apparatus comprises at least one die, which is supplied with molten glass, and at least one drawing head, which is supplied under pressure with organic thermoplastic material, and from which are simultaneously drawn continuous filaments that are combined to form a composite strand. The drawing head comprises a central passage through which filaments of glass are drawn, and is shielded by a hood. The top of the hood includes an opening situated in the centerline of the passage, and the bottom of the hood is formed of a wall which surrounds the drawing head and extends below the level of the bottom of the head. The drawing head is connected with a device for cooling the organic filaments.
    Type: Grant
    Filed: March 16, 1992
    Date of Patent: May 31, 1994
    Assignee: Vetrotex France
    Inventors: Giordano Roncato, Robert Fedorowsky, Philippe Boissonnat, Dominique Loubinoux
  • Patent number: 5203900
    Abstract: Discontinuous fibers are manufactured from a thermoplastic material having an elevated melting point by feeding molten thermoplastic material into a centrifugal chamber. The chamber includes a plurality of orifices through which the molten thermoplastic material is forced, thereby forming molten thermoplastic jets. Hot streams of gas are directed at these jets to convert the jets into thermoplastic fibers. Sizing agents including an emulsion or suspension in water, or an aqueous solution of active substances is sprayed onto the fibers. These sizing agents comprise no more than three active substances including a lubricating agent and an antistatic agent.
    Type: Grant
    Filed: August 10, 1992
    Date of Patent: April 20, 1993
    Assignee: Isover Saint-Gobain. "Les Miroirs"
    Inventors: Christian Guillard, Bernard Gicquel, Guy Berthier
  • Patent number: 5157751
    Abstract: A protected fiber optical splice and a method for making the protected splice. The protective structure encapsulates first and second spliced optical fibers. The fibers are preferably fusion spliced. The protective structure includes a rigid tube surrounding the splice and its adjacent regions of the spliced fibers. A plastic such as an epoxy or moldable plastic is injected into the tube between the substantially axially centered fibers and splice, and the interior wall of the tube. Two molding fixtures are preferably surrounding the two ends of the tube, for injecting the moldable plastic into the tube and for shaping the portions of the structure external to the the tube ends.
    Type: Grant
    Filed: January 14, 1992
    Date of Patent: October 20, 1992
    Assignee: Litton Systems, Inc.
    Inventors: Steven J. Maas, A. Douglas Meyer
  • Patent number: 5147432
    Abstract: An optical fiber (24), destined to receive a hermetic coating (32), is moved through a hermetic coating apparatus (30) wherein the fiber, entering the hermetic coating apparatus at a predetermined temperature, is caused to be engaged by a reactive gas. The reactive gas, reacting with the heated fiber, is effective to cause a layer of a hermetic material to be deposited adjacent to the outer surface of the fiber. A cross-flow purge gas is effective to prevent a resultant accumulation of a soot comprising reactive components of the reactive gas adjacent to portions of the hermetic coating apparatus which become heated by the fiber. Failure to prevent the accumulation of the soot may lead to fiber abrasions and reduced fiber strength.
    Type: Grant
    Filed: July 10, 1991
    Date of Patent: September 15, 1992
    Assignee: AT&T Bell Laboratories
    Inventors: Don R. Edmonston, Richard G. Huff
  • Patent number: 5127361
    Abstract: An optical fiber resin coating device having a nipple and a die which each have gradually tapering holes through which the optical fiber is drawn. The die and the nipple have adjacent parallel flat surfaces which are spaced to created a gap through which resin is supplied by pressuring to be applied to the optical fiber. The gap between the die and the nipple and the tapered holes within the die and the nipple are all designed to produce a resin coating which is even and contains no air bubbles, especially at high optical fiber drawing rates.
    Type: Grant
    Filed: September 13, 1991
    Date of Patent: July 7, 1992
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Yasuo Matsuda, Kohei Kobayashi
  • Patent number: 5007947
    Abstract: A camera mirror-drum with good precision and strength comprising a molded part in which glass fibers with an aspect ratio of 3-7 are dispersed in a resin at the overall proportion of 35-40% by weight, and a method and an apparatus for the manufacture of the mirror-drum.
    Type: Grant
    Filed: April 7, 1989
    Date of Patent: April 16, 1991
    Assignee: Matsushita Electric Industrial Co. Ltd.
    Inventors: Kazuei Kenmoti, Masamitu Miyazaki
  • Patent number: 4932108
    Abstract: A bulking process for glass fiber strands is provided which allows for increased bulking speed while reducing any decrease in the tensile strength of the bulked glass fiber strand yarn. The process involves conveying treated glass fibers having one or more water soluble, emulsifiable or dispersible thermoplastic materials having a melting or softening point of greater than around 100.degree. F. (37.degree. C.), one or more cationic lubricants and water to a heater to melt or soften the thermoplastic material present on the fibers, bulking the heated glass fiber strand, removing the bulked glass fiber strand at a rate less than the rate of conveyance to bulking, and collecting the bulked glass fiber strand yarn. The treated strand being conveyed to the heater can already be dried or can be wet. After removal from bulking, the glass fiber strand can be treated with a chemical treatment to assist in retarding any additional decrease in tensile strength of the bulked glass fiber strand.
    Type: Grant
    Filed: July 2, 1986
    Date of Patent: June 12, 1990
    Assignee: PPG Industries, Inc.
    Inventor: George L. Brodmann
  • Patent number: 4927445
    Abstract: A process for producing coated, single twist glass yarns which comprises drawing a plurality of fibers formed from fibers of molten glass, applying to the fibers a sizing comprising a thermoplastic, thermosetting or photosetting composition, gathering the coated fibers into a yarn, imparting a continuous rotative twisting movement to the coated yarn and curing the coated yarn so as to polymerize and/or crosslink the sizing coating.
    Type: Grant
    Filed: April 5, 1989
    Date of Patent: May 22, 1990
    Assignee: Vetrotex Saint-Gobain
    Inventors: Barbara Soszka, Robert Federowsky, Jacques Mahler
  • Patent number: 4855341
    Abstract: High-strength magnesium aluminosilicate glass fibers coated with the dried residue of a dilute aqueous sizing composition containing emulsified epoxy resin or emulsified epoxy resin solution, both 3-methacryloxypropyltrimethoxysilane and 3-aminopropyltriethoxysilane, and at least one lubricant, are compatible as reinforcing elements with unsaturated polyester, vinylester and epoxy resin matrixes.
    Type: Grant
    Filed: July 23, 1987
    Date of Patent: August 8, 1989
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: F. Ronald Paul, Richard M. Haines, Homer G. Hill
  • Patent number: 4848869
    Abstract: A silicone-based composite coating system for a glass optical fiber, the system comprising a silicone polymer undercoating component and a silicone-polyimide block copolymer overcoating component, is provided. The coating system can be applied entirely on-line, improves the handling characteristics of the fibers over conventional silicone-coated fibers, offers an excellent combination of optical and elastic properties, and does not compromise the high-temperature operating characteristics of silicone-based coating systems.
    Type: Grant
    Filed: August 8, 1988
    Date of Patent: July 18, 1989
    Assignee: Corning Incorporated
    Inventor: Eric H. Urruti
  • Patent number: 4830989
    Abstract: A continuous, monofilamentous, alkali-resistant glass fiber especially useful in cementitious products is conveniently prepared from a glass-forming composition comprising a magnesium silicate such as talc and a calcium carbonate such as limestone. Either the fiber itself or a strand comprising a plurality of the fiber is advantageously coated with an alkali-resistant polymer such as butadiene-styrene to provide additional alkali resistance.
    Type: Grant
    Filed: February 22, 1988
    Date of Patent: May 16, 1989
    Assignee: Pfizer Inc.
    Inventors: Nikhil C. Trivedi, John D. Mackenzie
  • Patent number: 4808478
    Abstract: Chemically treated glass fiber reinforcement for thermosetting polymers having a moisture reduced residue of an aqueous chemical treating composition consisting essentially of a vinyl acetate-organosilane copolymer, a vinyl silane coupling agent, an amino-organo silane coupling agent, at least one cationic lubricant, polyoxyethylene, an antistatic agent, an aqueous dispersible or emulsifiable wax with a surfactant and water.
    Type: Grant
    Filed: September 5, 1986
    Date of Patent: February 28, 1989
    Assignee: PPG Industries, Inc.
    Inventors: David E. Dana, Richard A. Davis, Howard J. Hudson, Steven J. Morris
  • Patent number: 4769286
    Abstract: A composite reinforcing element, especially a reinforcing cable, having a core consisting of a thread of non-metallic material and being coated in a reinforced polymer, and a process for producing it.
    Type: Grant
    Filed: February 19, 1986
    Date of Patent: September 6, 1988
    Inventor: Georges Le Noane
  • Patent number: 4762751
    Abstract: More flexible bundles of high modulus, low elongation fibers are provided by the impregnated bundles of the present invention. The flexible bundle of fibers comprise a plurality of fibers having a first treatment of a moisture-reduced residue of an aqueous chemical composition and a second treatment of a moisture-reduced, partially-cured impregnant of an aqueous chemical coating composition. The individual fibers in the impregnated bundle were first treated with an aqueous sizing composition having at least a fiber protectorant and optionally an antistatic agent and/or coupling agent. The impregnating composition has one or more elastomeric curable polyurethanes that are water soluble, emulsifiable or dispersible and one or more crosslinking materials that are water soluble, emulsifiable or dispersible and water. Optionally, there may be present one or more emulsifiable or dispersible lubricants, plasticizers, polymeric materials, and flame retardants.
    Type: Grant
    Filed: May 22, 1986
    Date of Patent: August 9, 1988
    Assignee: PPG Industries, Inc.
    Inventors: Mikhail M. Girgis, Ernest L. Lawton
  • Patent number: 4762750
    Abstract: More flexible bundles of high modulus, low elongation fibers are produced by the impregnated bundles and process of the present invention. The flexible bundle of fibers comprise a plurality of fibers having a first treatment of a moisture-reduced residue of an aqueous chemical composition and a second treatment of a moisture-reduced, partially cured impregnant of an aqueous chemical coating composition. The individual fibers in the impregnated bundle were first treated with an aqueous sizing composition having at least a fiber protectorant and optionally an antistatic agent and/or coupling agent. The impregnating composition has one or more water soluble, dispersible or emulsifiable elastomeric polymers that are essentially free of hydrocarbon diene and chlorine functionalities, and one or more crosslinking materials that are water soluble, emulsifiable or dispersible, and water.
    Type: Grant
    Filed: February 26, 1987
    Date of Patent: August 9, 1988
    Assignee: PPG Industries, Inc.
    Inventors: Mikhail M. Girgis, Ernest L. Lawton
  • Patent number: 4752527
    Abstract: Chemically treated glass fibers having good processability are useful in producing fiber reinforced polymeric matrices, wherein the glass fibers have good wettability and are not detrimental to the weatherability of the fiber reinforced polymeric matrices. The chemically treated fibers have the dried residue of an aqueous chemical treating composition having at least a bisphenol A polyester film forming polymer compatible with and soluble in the matrix polymer, acryloxy-containing or methacryloxy-containing organo coupling agent in an effective coupling agent amount, cationic fiberous lubricant in an effective lubricating amount, with an antistatic agent that is a cationic organic quaternary ammonium salt having alkoxy moieties, and water in an amount to give a total solids for the aqueous chemical treating composition in the range of about 1 to about 30 weight percent. The aqueous chemical treating composition is essentially free of inorganic antistatic agents.
    Type: Grant
    Filed: October 30, 1986
    Date of Patent: June 21, 1988
    Assignee: PPG Industries, Inc.
    Inventors: George V. Sanzero, Howard J. Hudson, David T. Melle
  • Patent number: 4745028
    Abstract: Strands of chemically treated glass fibers of the present invention result in fiber reinforced polar thermosetting and thermoplastic polymers having good strength properties. The chemically treated glass fibers are treated with the an aqueous chemical treating composition having an epoxy polyurethane copolymer or a polyepoxide resin with blocked polyisocyanate functionality, and at least one or more organo coupling agents. The epoxy polyurethane copolymer or epoxy with polyisocyanate functionality can be chain extended with organic polyols. The blocked polyisocyanates can be either partially or fully blocked. Also the aqueous chemical treating composition can have one or more cationic and/or nonionic fiber lubricants, epoxy polyvinly acetate copolymer in conjunction with an ethylene vinyl acetate copolymer or an epoxy polymer and mixtures of the fiber lubricant with the polymeric materials.
    Type: Grant
    Filed: June 17, 1986
    Date of Patent: May 17, 1988
    Assignee: PPG Industries, Inc.
    Inventors: Balbhadra Das, Chester S. Temple, Carl A. Melle
  • Patent number: 4728573
    Abstract: Glass fibers are prepared with a chemical treatment resulting in chemically treated glass fibers having utility in reinforcing thermoplastic polymers such as polyolefins. The chemically treated glass fibers have a dried residue of an aqueous chemical treating composition having one or more amino organo coupling agents, an aqueous emulsion of an acid or anhydride modified polyolefin having one or more surfactants, wherein the polyolefin is neutralized with an organic or inorganic base with a basicity less than the basicity of the amino moiety of the coupling agent, a binder stabilizer, one or more film forming polymers, and water. The aqueous chemical treating composition is essentially free of cationic lubricants that are amidated fatty acids and polyvinyl acetate homopolymer.
    Type: Grant
    Filed: May 7, 1986
    Date of Patent: March 1, 1988
    Assignee: PPG Industries, Inc.
    Inventor: Chester S. Temple
  • Patent number: 4713103
    Abstract: A method and a device for applying a primary coating to an optical filament. In order to make the distribution of the coating material even, the flow of the coating material to be introduced into the crucible is divided in the crucible into two flows opposite in direction and advancing in the peripheral direction of the crucible. The two flows are caused to flow in the axial direction substantially at the opposite sides of the crucible. The axial flows are caused to flow in the peripheral direction of the crucible and joined by means of an outer channel extending around the crucible in the peripheral direction thereof. The flow is passed radially through throttle openings into an inner peripheral channel and further through a peripheral throttle slot into a conical channel along which it is led into a central chamber of the crucible, through which chamber the filament is drawn.
    Type: Grant
    Filed: December 5, 1986
    Date of Patent: December 15, 1987
    Assignee: Oy Nokia AB
    Inventors: Risto Pennanen, Jyrki Pennala
  • Patent number: 4681805
    Abstract: Strands of starch-oil chemically treated glass fibers can have improved performance in high humidity environments. Such strands have a sole starch, film-former modifier which is a poly(oxypropylene) organic alcohol. Starch-oil sizings for treating glass fibers having polyethylene glycol are converted to improved starch-oil sizing compositions by substituting the poly(oxypropylene) organic alcohol for the polyethylene glycol. The strands of chemically treated glass fibers with improved high humidity performance are also made more lubricious by having a moisture-reduced residue of the starch-oil aqueous chemical treating composition with the poly(oxypropylene) organic alcohol. The more lubricious characteristic is effected by having present a starch mixture of a high amylose cationic starch and a highly crosslinked starch of approximately 50 percent amylose and wax in an amount less than the starch mixture but more than the oil and a cationic lubricant wetting agent and bacteriocide or fungicide.
    Type: Grant
    Filed: December 23, 1985
    Date of Patent: July 21, 1987
    Assignee: PPG Industries, Inc.
    Inventor: Garry D. Puckett
  • Patent number: 4681802
    Abstract: Treated glass fibers having adequate protection for gathering into strands and when chopped being more dispersible in aqueous media. The treated glass fibers have a coating of an aqueous treating composition, wherein the solids have a cationic surfactant having one or more primary, secondary and/or tertiary amine moieties and one or more water dispersible, poly(oxyethylene-oxyalkylene) copolymer having an oxide ratio of about 78 to about 22 to about 99 to about 1 and an average molecular weight of at least 15,000, and one or more polar functional coupling agents. Optionally, the solids may also have one or more starches that are insoluble or only incompletely soluble in cold water. Glass fibers treated with the aqueous treating compositions and produced into wet or dry chopped glass fiber strands having lengths of about 1/16 of an inch (1.58 mm) to about 3 inches (76.2 mm), have good dispersibility in aqueous media with or without addition of dispersing agents.
    Type: Grant
    Filed: February 28, 1986
    Date of Patent: July 21, 1987
    Assignee: PPG Industries, Inc.
    Inventors: Peter C. Gaa, Jerry C. Hedden, Narasimhan Raghupathi
  • Patent number: 4663231
    Abstract: Coated fabrics produced with more flexible bundles of filaments -are possible with the flexible bundle of filaments of the present -invention. The flexible bundle of filaments comprise a plurality of -sized filaments having the moisture-reduced partially cured coating and -impregnant of an aqueous chemical coating composition. The composition -has a vinyl-containing interpolymer with one or more comonomers and a -self-crosslinking polymeric material and water. Optionally, there may be -present one or more aqueous emulsifiable or dispersible waxes, aqueous -dispersible or emulsifiable plasticizers and/or one or more aqueous -dispersible or emulsifiable diene-containing elastomers. The -diene-containing elastomer is always present when the comonomer of the -ethylene-containing interpolymer tends to decrease the noncrystallinity -of the interpolymer or increase the glass transition temperature of the -interpolymer.
    Type: Grant
    Filed: May 22, 1986
    Date of Patent: May 5, 1987
    Assignee: PPG Industries, Inc.
    Inventors: Mikhail M. Girgis, Ernest L. Lawton
  • Patent number: 4652288
    Abstract: A chalcogenide glass rod and/or a fluoride glass rod are covered with a thermally shrinkable synthetic resin tube, the resulting assembly being heated under vacuum to produce a preform, and a thermally shrinkable synthetic resin tube with a plurality of said preforms formed in a bundle and inserted thereinto is drawn again under heating.
    Type: Grant
    Filed: July 23, 1985
    Date of Patent: March 24, 1987
    Assignee: Horiba, Ltd.
    Inventor: Mitsunori Saito
  • Patent number: 4637956
    Abstract: Strands of chemically treated glass fibers of the present invention result in fiber reinforced polar thermosetting and thermoplastic polymers having good strength properties. The chemically treated glass fibers are treated with the an aqueous chemical treating composition having an epoxy polyurethane copolymer or a polyepoxide resin with blocked polyisocyanate functionality, and at least one or more organo coupling agents. The epoxy polyurethane copolymer or epoxy with polyisocyanate functionality can be chain extended with organic polyols. The blocked polyisocyanates can be either partially or fully blocked. Also the aqueous chemical treating composition can have one or more cationic and/or nonionic fiber lubricants, epoxy polyvinyl acetate copolymer in conjunction with an ethylene vinyl acetate copolymer or an epoxy polymer and mixtures of the fiber lubricant with the polymeric materials.
    Type: Grant
    Filed: March 29, 1985
    Date of Patent: January 20, 1987
    Assignee: PPG Industries, Inc.
    Inventors: Balbhadra Das, Chester S. Temple, Carl A. Melle
  • Patent number: 4615946
    Abstract: Chemically treated glass fibers in the form of continuous bundles of glass fibers and chopped bundles of glass fibers are provided that have good handleability and thermal aging characteristics in reinforcing thermoplastic polymers. The chemically treated glass fibers have a dried residue of an aqueous chemical treating composition. The aqueous chemical treating composition has two aqueous soluble, dispersible, or emulsifiable film forming polymers which can be either epoxy polymers and polyurethane polymers or epoxy polyurethane copolymers and polyurethane polymers and an amino alkyl functional silane coupling agent and at least a second silane coupling agent which can be a lubricant modified amine organo functional silane coupling agent, a polyamino organo functional silane coupling agent, an epoxy organo functional silane coupling agent or a vinyl organo functional silane coupling agent and a reaction product process aid.
    Type: Grant
    Filed: March 29, 1985
    Date of Patent: October 7, 1986
    Assignee: PPG Industries, Inc.
    Inventor: Chester S. Temple
  • Patent number: 4615717
    Abstract: An oriented continuous strand mat of glass fiber filaments is formed by interleaved layers of generally circular or random loops and elongated elliptical loops having their longitudinal axes positioned in the direction of travel of an endless conveyor upon which the glass fibers are deployed to form a mat useable in a stampable glass fiber reinforced thermoplastic resin sheet having increased tensile strength in the length of the sheet. An elongated deflector plate having a planar deflecting surface whose length is aligned with the direction of conveyor travel, and whose face plane is generally perpendicular thereto receives pulled strands which have passed through an air flow nozzle and forms the strands into the elongated elliptical loops used to make the mat.
    Type: Grant
    Filed: September 27, 1985
    Date of Patent: October 7, 1986
    Assignee: PPG Industries, Inc.
    Inventors: Jeffrey A. Neubauer, Walter J. Reese, Dennis O. Spencer
  • Patent number: 4587161
    Abstract: A metal foil laminate including at least one sheet of metal foil directly bonded to one face of a sheet of glass fiber reinforced polyester and epoxy resin, and a continuous process for preparing such laminates.
    Type: Grant
    Filed: December 13, 1983
    Date of Patent: May 6, 1986
    Inventors: David Barrell, Donald E. Kennedy, Donald C. Rollen
  • Patent number: 4567102
    Abstract: A hot melt, non-aqueous glass size composition consists of an ethylene-ethylacrylate copolymer, a micro-crystalline wax, a phenolic-modified terpene resin and a silane.
    Type: Grant
    Filed: May 24, 1984
    Date of Patent: January 28, 1986
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Jean-Claude Pollet, Gordon P. Armstrong, Martin C. Flautt
  • Patent number: 4555447
    Abstract: The use of an antistatic agent in the production of blowing wool insulation is disclosed. The antistat is a quanternary ammonium salt which is applied from an aqueous solution. The antistat reduces the tendency of the small fiber particles to dispense during pneumatical application.
    Type: Grant
    Filed: August 9, 1984
    Date of Patent: November 26, 1985
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Ronald F. Sieloff, William A. Kays
  • Patent number: 4548631
    Abstract: The invention provides a process for forming a fiber keeping a circular polarization and a device for implementing this process.This process consists, during drawing and twisting of the fiber from a formable material source, in remelting on the surface a part of the volume of said fiber in a zone where it is subjected to twisting stresses.
    Type: Grant
    Filed: December 8, 1983
    Date of Patent: October 22, 1985
    Assignee: Thomson-CSF
    Inventors: Herve Arditty, Philippe Graindorge
  • Patent number: 4537610
    Abstract: Method for producing discrete bundles of filaments includes applying a non-aqueous, hot melt coating material to continuous filaments and gathering the coated continuous filaments into a bundle. The coating material is solidified on the continuous filament bundle so as to establish a first cross-sectional shape and the bundle is then severed into discrete segments whereby the bundle segments are deformed so as to exhibit a second cross-sectional shape at the severed regions. The bundle segments are then heated sufficiently to soften the coating material to permit the bundle segments to substantially return to the first cross-sectional shape.The apparatus of the invention includes a primary applicator for applying a production coating to the filaments and an interim applicator for applying a start-up coating to the filaments.
    Type: Grant
    Filed: May 24, 1984
    Date of Patent: August 27, 1985
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Gordon P. Armstrong, Martin C. Flautt
  • Patent number: 4536447
    Abstract: Treated glass fibers having adequate protection for gathering into strands and when chopped being more dispersible in aqueous media. The treated glass fibers have a coating of an aqueous treating composition having nonionic surfactant and a cationic quaternary ammonium salt surfactant and one or more organo polar functional coupling agents. In addition, the aqueous treating composition can also have one or more water dispersible, emulsifiable or soluble polyols. Glass fibers treated with the aqueous treating compositions and produced into wet or dry chopped glass fiber strands having a length of 1/16 of an inch to about 3 inches, and having good dispersibility in aqueous media with or without addition of dispersing agents. Nonwoven, sheet-like mat produced from aqueous dispersions having the chopped treated glass fibers, where an amount of water is removed usually by vacuum, suction or thermal means and where polymeric binders, commonly referred to as wet strength binders, are applied and the mat is cured.
    Type: Grant
    Filed: September 24, 1982
    Date of Patent: August 20, 1985
    Assignee: PPG Industries, Inc.
    Inventor: Ed C. Hsu
  • Patent number: 4536446
    Abstract: Treated glass fibers are provided that are more dispersible in aqueous media. The glass fibers are treated with a composition having a nonionic surfactant and a cationic quaternary ammonium salt surfactant. The composition may be added simultaneously or sequentially with the chopped glass fibers to the aqueous media in which the glass fibers are to be dispersed. Also, glass fibers can be treated with an aqueous treating composition having the composition and produced into wet or dry chopped glass fibers having a length of about 1/16 of an inch to about 3 inches. The treated glass fibers have good dispersibility in aqueous media with or without the addition of dispersing agents.
    Type: Grant
    Filed: September 24, 1982
    Date of Patent: August 20, 1985
    Assignee: PPG Industries, Inc.
    Inventors: Edward C. Hsu, Chester S. Temple
  • Patent number: 4530876
    Abstract: Warp sizing compositions are used to treat textile yarn to withstand the abrasive forces encountered by the warp yarn during weaving. A warp sizing composition having poly(vinyl alcohol); and a second film forming polymer, which is water soluble, dispersible or emulsifiable and having a Tg of less than 70.degree. C., and an average particle size of less than 5 microns, and being dispersible with poly(vinyl alcohol); and water results in treated yarn having good flexibility, and abrasion resistance strength. The more flexible treated warp yarn encounters less damage during the slashing operation to result in improved weaving performance.
    Type: Grant
    Filed: August 12, 1983
    Date of Patent: July 23, 1985
    Assignee: PPG Industries, Inc.
    Inventors: George L. Brodmann, Ernest L. Lawton
  • Patent number: 4517242
    Abstract: Method and coating composition for coating newly formed glass at relatively low temperature and without prior "hot end" treatment. In this method, the composition is applied in a conventional manner by spray, dip, or roller coating, the composition comprising a carboxylic functional resin in dilute aqueous solution, the solution also including a lubricity-imparting additive. The carboxylic functionality of the resin renders it water dispersible and also renders the finished coating receptive to conventional label adhesives, decorating printing, and so forth. The use of this composition, without cross-linking of the coating, protects the surface of the glass until sterilization at which time the composition is removed by hot water washing; the treated glassware is then sterilized by exposure to dry heat temperature above 400.degree. F. without surface discoloration.
    Type: Grant
    Filed: June 6, 1983
    Date of Patent: May 14, 1985
    Assignee: Wheaton Industries
    Inventors: Kamal R. Sinha, Brian E. Caldwell
  • Patent number: 4517243
    Abstract: Method and coating composition for coating newly formed glass at relatively low temperature and without prior "hot-end" treatment. In this method, the composition is applied in a conventional manner by spray, dip, or roller coating, the composition comprising a carboxylic functional resin in dilute aqueous solution, the solution also including a crosslinking agent for the resin and a lubricity-imparting additive. The carboxylic functionality of the resin renders it water dispersible and also renders the finished coating receptive to conventional label adhesives, decorating printing, and so forth.
    Type: Grant
    Filed: April 18, 1983
    Date of Patent: May 14, 1985
    Assignee: Wheaton Industries
    Inventors: Kamal R. Sinha, Brian E. Caldwell
  • Patent number: 4508555
    Abstract: Method and apparatus are disclosed for scrubbing effluent gases arising during the production of mineral fibers and particularly during the production of glass fiber insulation blankets or mats. The scrubbing is effected by the use of opposed jets of water, the interaction of which produces a planar dispersion of water droplets across the path of the effluent gases. The jets are preferably located within the gas collecting ducts closely adjacent the region of gas emergence to prevent buildup of glass fibers and binder on the duct walls. The water is separated from the gas, following which the water and gas are both subjected to further treatment before being recycled or released.
    Type: Grant
    Filed: March 1, 1984
    Date of Patent: April 2, 1985
    Assignee: Isover Saint-Gobain
    Inventor: Guy M. Baduel
  • Patent number: 4470252
    Abstract: Glass fiber strand is prepared from a process so that the strand can be bulked at higher processing speeds. The process involves drawing the glass fibers from molten glass, applying an aqueous treating composition to the fibers, gathering the treated glass fibers into one or more strands and collecting the glass fiber strands onto one or more packages, drying the packages, rewinding the packages onto a second, more supportive package, steaming one or more of the second packages and drying the steamed packages so that the package has a moisture content of around 1 to about 25 weight percent. The aqueous treating composition used to treat the glass fibers in forming has one or more starches, an aqueous soluble, emulsifiable or dispersible wax wherein the amount of wax in the aqueous treating composition is less than the amount of starch, a cationic lubricant and water.
    Type: Grant
    Filed: April 4, 1983
    Date of Patent: September 11, 1984
    Assignee: PPG Industries, Inc.
    Inventor: George L. Brodmann
  • Patent number: 4465500
    Abstract: An aqueous sizing composition with a cationic lubricant, amide compound, and water soluble or dispersible polyol which is used to produce wet chopped sized glass fiber strands. The sized wet or dried chopped glass fiber strands can be used to produce non-woven glass fiber strand mat, having good tensile strength, and good flexibility and reduced tendency for static generation. The wet chopped glass fiber strands also have good flowability in bulk handling apparatus.
    Type: Grant
    Filed: September 23, 1982
    Date of Patent: August 14, 1984
    Assignee: PPG Industries, Inc.
    Inventors: Donald L. Motsinger, Daniel G. Brown
  • Patent number: 4461804
    Abstract: An aqueous sizing composition with a cationic lubricant, amide compound, and water soluble or dispersible polyol which is used to produce wet chopped sized glass fiber strands. The sized wet or dried chopped glass fiber strands can be used to produce non-woven glass fiber strand mat, having good tensile strength, and good flexibility and reduced tendency for static generation. The wet chopped glass fiber strands also have good flowability in bulk handling apparatus.
    Type: Grant
    Filed: May 29, 1981
    Date of Patent: July 24, 1984
    Assignee: PPG Industries, Inc.
    Inventors: Donald L. Motsinger, Daniel G. Brown
  • Patent number: 4435474
    Abstract: An aqueous sizing composition, method of preparing same and sized glass fibers are provided that enables the production of sized glass fibers having improved filamentization. When these sized glass fibers are used for reinforcing polymeric materials the polymeric materials have good filamentization resulting in reinforced polymeric materials having good mechanical properties such as tensile strength and compaction without detrimentally affecting fuzz, fly or static properties of the strands. The sizing composition and method of producing same and sized glass fiber strand and reinforced polymeric materials and other improvements of the present invention eminate from the use of an interaction product of an epoxidized polar thermoplastic copolymer and an amino organo silane coupling agent in an aqueous sizing composition that also contains a predominant amount of a cross-linkable film former.
    Type: Grant
    Filed: March 29, 1982
    Date of Patent: March 6, 1984
    Assignee: PPG Industries, Inc.
    Inventors: Balbhadra Das, L. Dow Moore
  • Patent number: 4390647
    Abstract: An aqueous treating composition is provided for glass fibers to produce treated glass fiber strands for use in manufacturing cord of glass fibers for reinforcing elastomeric materials, wherein the glass fibers have a more continuous film of the residue of the aqueous treating composition, and improved wettability.The aqueous treating composition is a non-starch-containing treating composition having one or more water dispersible, high molecular weight polyoxyalkylene polyols, one or more silane coupling agents and one or more cationic lubricants.
    Type: Grant
    Filed: February 27, 1981
    Date of Patent: June 28, 1983
    Assignee: PPG Industries, Inc.
    Inventor: Mikhail M. Girgis
  • Patent number: 4382991
    Abstract: Sizing compositions having polyurethane latex, cationic silane having unsaturation and polyamino silane are provided. The compositions are used to treat glass fibers to produce sized glass fibers having improved physical properties such as integrity. The sized glass fibers when used with molding compounds yields molded articles with improved physical properties like tensile strength, flexural strength and articles with impact strength.
    Type: Grant
    Filed: April 24, 1981
    Date of Patent: May 10, 1983
    Assignee: PPG Industries, Inc.
    Inventor: Gary A. Pollman
  • Patent number: 4370157
    Abstract: Glass fiber sizing compositions and methods of making same and glass fibers containing dried residue of the sizing composition are provided that yield improved efficiencies, reduced migration, reduction in drying conditions, reduced cleaning time and improved housekeeping. The sizing composition, method and glass fiber strand involves the use of a high solids sizing composition having a water solubilized, condensation, cross-linkable, unsaturated polyester resin having free carboxyl groups either pendant or terminal or pendant and terminal and an amino-containing silane and an amount of water to yield a sizing composition having an amount of total solids in the range of about 18 to about 40 weight percent. In addition, other additives can be included in the sizing composition such as additional polyester resins, additional coupling agents, thermoplastic polymers, anti-static agents, film-former modifiers, wetting agents, stabilizers and lubricants.
    Type: Grant
    Filed: December 29, 1981
    Date of Patent: January 25, 1983
    Assignee: PPG Industries, Inc.
    Inventors: Herbert W. Barch, Carl A. Melle, Donald E. McWilliams, Howard J. Hudson
  • Patent number: 4361465
    Abstract: In order to obtain a more uniform sheet-like glass fiber product, it has been discovered that the use of a treating formulation having phosphate esters of polyoxyalkylene alkyl alcohol, polyamine compound, organic acid with glass fibers gives a more uniform aqueous dispersion of glass fibers. The treating formulation can be added to the aqueous solution to which the glass fibers are to be dispersed and then the more uniform aqueous dispersion of glass fibers is conveyed to a separator to produce the more uniform sheet-like glass fiber product from the aqueous dispersion and the aqueous dispersion is recyled to disperse fresh glass fibers. Also, the treating formulation can be present by itself on glass fibers that are in a wet condition. In addition, the treating formulation can be present on glass fibers that are in a dry condition when the treating formulation is applied to the glass fibers from a sizing composition containing the treating formulation and a film-former.
    Type: Grant
    Filed: August 3, 1981
    Date of Patent: November 30, 1982
    Assignee: PPG Industries, Inc.
    Inventor: Roy R. Graham
  • Patent number: 4358502
    Abstract: A mat of randomly disposed multifilament glass strand of indefinite length bonded to each other within a binder consisting essentially of the dried residue of an aqueous dispersion of emulsified polyurethane or epoxy resin having an average particle diameter of at least about 0.6 .mu.m and an amine-functional organosilane, where the individual filaments are sized with a mixture of an amine-functional organosilane and an amide reaction product of a fatty acid with an aliphatic polyamine, the reaction product having residual amine functionality, gives improved impact strength when used to reinforce thermoplastic, and especially polyamide, laminates which are stamped to form shaped articles.
    Type: Grant
    Filed: December 14, 1981
    Date of Patent: November 9, 1982
    Assignee: Owens-Corning Fiberglas Corporation
    Inventor: Sidney G. Dunbar
  • Patent number: 4351657
    Abstract: In a process for preparing optical fibers, an optical fiber preform is heated and softened to be drawn at a high speed into an optical fiber. The optical fiber is passed through a plastic pipe of a thermoplastic resin. As the optical fiber is passed through the plastic pipe, the lower part of the plastic pipe is gradually inserted into a heating unit to be uniformly heated. The heated plastic pipe is softened and is coated over the optical fiber.
    Type: Grant
    Filed: February 11, 1981
    Date of Patent: September 28, 1982
    Assignee: Nippon Telegraph & Telephone Public Corporation
    Inventors: Takao Kimura, Shigeki Sakaguchi, Hisao Takata
  • Patent number: 4347278
    Abstract: Polytetrafluoroethylene fluorocarbon resin dispersion-containing coatings for glass fibers are disclosed. In one embodiment, the polytetrafluoroethylene fluorocarbon resin dispersion-containing composition also comprises a lubricant and is suitable for use as a padding composition for glass fiber fabric. In another embodiment, the polytetrafluoroethylene fluorocarbon resin dispersion-containing composition also comprises a film-forming polymer, a thixotropic gelling agent, a silane coupling agent and, optionally, a lubricant and is suitable for use as a size composition for glass fibers.
    Type: Grant
    Filed: October 27, 1980
    Date of Patent: August 31, 1982
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: Martin C. Flautt, Robert Wong, Joseph F. Walsh