Cellulosic Base Patents (Class 427/439)
  • Patent number: 5631047
    Abstract: This invention relates to a composition suitable for use as a combination fire retardant, soil and water protectant, and biocide, and to the method of making and applying the composition. The preferred embodiment contains the following ingredients: from 2.30% to 9.22% by total weight of ammonium phosphate, monobasic; from 2.30% to 9.22% by total weight of ammonium phosphate, dibasic; from 2.30% to 9.22% by total weight of a compound comprising approximately 50% ammonium polyphosphate, 3% urea, and 47% water; from 2.60% to 10.4% by total weight of a fluorinated acrylic polymer; from 0.025% to 0.1% by total weight of coco imidazuline dicarboxylate; from 1.00% to 4.00% by total weight of organotin; and from 57.84% to 89.475% by total weight of water. The composition is applied to porous materials, such as fabrics, wood, cardboard, or fiberboard, for protection from fire, soil and water damage, and virus and fungus growth.
    Type: Grant
    Filed: September 19, 1995
    Date of Patent: May 20, 1997
    Assignee: American Fire Retardant Corp.
    Inventor: Edward E. Friloux
  • Patent number: 5605720
    Abstract: An in-line continuous method of formulating and applying a hot melt adhesive to a substrate involves metering a particulate polymer adhesive and a tackifier in a weight ratio in an extruder where the raw materials are formed into a homogeneous melt. The melt is continuously discharged directly into a hot melt applicator for deposition onto a substrate.
    Type: Grant
    Filed: April 4, 1996
    Date of Patent: February 25, 1997
    Assignee: J & M Laboratories Inc.
    Inventors: Martin A. Allen, John T. Fetcko
  • Patent number: 5578344
    Abstract: A process for impregnating a resin into a substrate to form a web. The resin is impregnated into one side of the web, so that the other side remains exposed. This arrangement allows the exposed side of the web to be dispersible in water, while the impregnated side is water resistant. The impregnation may occur in zones and comprise one material or two or more materials. The resulting web is useful as a backsheet in disposable absorbent articles wherein it is desired to have a barrier that is impermeable to body fluids, yet flushable for disposal.
    Type: Grant
    Filed: November 22, 1995
    Date of Patent: November 26, 1996
    Assignee: The Procter & Gable Company
    Inventors: Nichholas A. Ahr, Raymond J. Dirk
  • Patent number: 5558906
    Abstract: Process for the production of decorative laminates having improved scratch, mar, scrape and abrasion resistance comprising the initial step of preparing a mixture of a melamine-formaldehyde resin and an abrasion resistant material, wherein the mixture includes abrasion resistant alumina particles having a particle size of about 25 microns and abrasion resistant alumina particles having a particle size of about 3 microns at a ratio of about 2 to 1; about 0.25 percent silane; about 0.075 percent xanthan gum; and about 0.3 percent to about 1.2 percent polyvinyl alcohol or about 0.1 percent polyethylene glycol distearate having a molecular weight of about 6000, wherein all percentages are measured by weight of the total wet weight of the resin solution of the mixture.
    Type: Grant
    Filed: July 6, 1994
    Date of Patent: September 24, 1996
    Assignee: Formica Technology Inc.
    Inventors: Donald J. Albrinck, John J. Mascavage
  • Patent number: 5510150
    Abstract: A jet coating method for applying coating mix onto a moving web in a noncontacting manner in ambient pressure which includes the step of directing a jet of the coating mix counter to an approach direction of the web at a velocity sufficiently high to attain a splitting of the jet into a return flow and a coating mix application flow.
    Type: Grant
    Filed: September 13, 1994
    Date of Patent: April 23, 1996
    Assignee: Valmet Corporation
    Inventor: Jukka Koskinen
  • Patent number: 5468705
    Abstract: The present invention relates to a storage-stable solution of carbonated magnesium methoxide of the formula Mg(CH.sub.3 O).sub.2 (CO.sub.2).sub.n in methanol, and processes for their preparation by reacting metallic magnesium with methanol and CO.sub.2 or reacting magnesium methoxide in methanol with CO.sub.2, wherein the magnesium content of the solution is from 0.1 to 8% by weight, based on the total weight of the solution, and the CO.sub.2 content n is from 1 to 2.2. The present solution is used, inter alia, for the preservation of paper or for the preparation of a catalyst for the polymerization of olefins.
    Type: Grant
    Filed: December 15, 1993
    Date of Patent: November 21, 1995
    Assignee: Huels Aktiengesellschaft
    Inventors: Hartwig Rauleder, Burkhard Standke, Hans-Joachim Kotzsch, Reinhold Schork
  • Patent number: 5468706
    Abstract: The present invention relates to a storage-stable solution of a mixture of carbonated magnesium methoxide of the formula Mg(CH.sub.3 O).sub.2 (CO.sub.2).sub.n, carbonated magnesium ethoxide of the formula Mg(C.sub.2 H.sub.5 O).sub.2 (CO).sub.2).sub.n and a carbonated mixed alkoxide of the formula Mg(CH.sub.3 O).sub.x (C.sub.2 H.sub.5 O).sub.y (CO.sub.2).sub.n, in which 0<x, y<2 and x+y=2, in a combination of methanol and ethanol, and processes for the preparation thereof, the magnesium content of the solution being from 0.1 to 11% by weight, based on the total weight of the solution, and the CO.sub.2 content n being from 1.0 to 2.2. The present solutions are used, inter alia, for the preservation of paper and for the preparation of a catalyst for the polymerization of olefins.
    Type: Grant
    Filed: December 15, 1993
    Date of Patent: November 21, 1995
    Assignee: Huels Aktiengesellschaft
    Inventors: Hartwig Rauleder, Burkhard Standke, Hans-Joachim Kotzsch, Reinhold Schork
  • Patent number: 5458924
    Abstract: A durable light resistance and UV-screening action is imparted to a fibrous article by coating the fibrous article with a polymer comprising units derived from at least one monomer selected from those which are represented by the formulae (1) and (2): ##STR1## wherein R is H or CH.sub.3 and X is --O--, --OCH.sub.2 CH.sub.2 O-- or --OCH.sub.2 CH(CH.sub.3)O--, ##STR2## wherein Y is halogen or CH.sub.3, n is 1 or 2, R.sub.1 is C1-6 hydrocarbyl, m is 1 or 2, R.sub.2 is C1-6 alkylene and R.sub.3 is H or CH.sub.3.
    Type: Grant
    Filed: November 9, 1993
    Date of Patent: October 17, 1995
    Assignee: Ipposha Oil Industries Co., Ltd.
    Inventors: Kazuto Kashiwai, Takaichi Yamamoto, Shinichi Kumagae
  • Patent number: 5456949
    Abstract: Damage resistant high pressure decorative laminate having excellent scratch, mar, scrape and abrasion resistance, as well as excellent appearance and cleanability and methods of producing same.The method of producing the decorative laminate includes applying a mixture of a liquid thermosetting resin and an abrasion resistant composition, followed by a second coat of the resin without the abrasion resistant composition, or with one having smaller abrasion resistant particles than in the first coat.
    Type: Grant
    Filed: December 29, 1994
    Date of Patent: October 10, 1995
    Assignee: Formica Technology Inc.
    Inventors: Donald J. Albrinck, Ronald J. Keeling
  • Patent number: 5427844
    Abstract: A yarn, cloth, woven fabric, knitted fabric or nonwoven fabric composed of natural cellulose fibers, each fiber having incorporated therein a water-insoluble inorganic metal compound, and each fiber having at least one cured polycarboxylic acid combined therewith, said polycarboxylic acid being one selected from the group consisting of polycarboxylic acids and partial salts thereof, and a process for preparing the same.
    Type: Grant
    Filed: December 15, 1993
    Date of Patent: June 27, 1995
    Assignees: New Japan Chemical Co., Ltd., Shikibo Ltd.
    Inventors: Koichi Murai, deceased, by Kei Takeda, heir, by Kumi Fujimoto, heir, by Rumi Emori, heir, Hidekazu Nakagawa, Motohiko Otani, Yoshiaki Sakai, Hiroyuki Miura, Yutaka Tsujimoto, Kango Fujitani
  • Patent number: 5422147
    Abstract: A method and apparatus for deacidification of cellulosic materials such as the pages of books, magazines, newspapers, documents and the like are provided which ensures that substantially the entirety of each page is treated. The method includes placing the materials within a carrier such that the pages are free for exposure to the treating medium. The carrier is submerged in a vat preferably containing a dispersion of treating material including particles of an alkaline metal oxide, hydroxide or salt. The vat includes a support frame which supports the carrier and is slidably mounted on the vat such that the carrier and materials it holds may reciprocate in a generally horizontal direction. The reciprocation of the support frame causes the pages of a book, for example, to fan out, and the treating material in the medium thus comes into contact with each page of the book, magazine or other document.
    Type: Grant
    Filed: August 12, 1993
    Date of Patent: June 6, 1995
    Assignee: Preservation Technologies, Inc.
    Inventors: Lee H. Leiner, Thomas D. Traubert, Robert M. Gaydos
  • Patent number: 5409736
    Abstract: An improved method of deacidifying books, imaged paper and other imaged materials having a cellulose base wherein, for a sufficient time to raise the pH of the materials, the materials are treated with alkaline particles of a basic metal oxide, hydroxide or salt dispersed in an inert perflourinated carrier, preferably selected from the group consisting of perfluoropolyoxyether, perfluoromorpholine and combinations thereof. Perfluoropolyoxyether alkanoic acid is added as a surfactant. Alternatively, when perfluoromorpholine is the carrier of choice, the surfactant may instead be potassium fluoroalkyl carboxylate.
    Type: Grant
    Filed: August 31, 1993
    Date of Patent: April 25, 1995
    Assignee: Preservation Technologies, Inc.
    Inventors: Lee H. Leiner, Edward W. Kifer
  • Patent number: 5391401
    Abstract: In curtain coating, uniform layer or layers are only obtained if the operational variables are held within precise limits. These limits define a "coating window". However, one of the boundaries of this "window" is governed by the occurrence of air-entrainment. Described herein is an improved coating process in which allows the "coating window" to be enlarged. This is achieved by using a material adjacent the support on to which the liquid material is to be coated which readily shear-thins.
    Type: Grant
    Filed: June 17, 1993
    Date of Patent: February 21, 1995
    Assignee: Eastman Kodak Company
    Inventors: Terence D. Blake, Rosemary Dobson, Gregory N. Batts, William J. Harrison
  • Patent number: 5358535
    Abstract: Use as formaldehyde collectors of the products of formula ##STR1## in which R represents an acetoacetyl or 3,5-dioxo hexanoyl group, R.sub.1 represents a hydrogen atom or a methyl radical, m is equal to 1, 2, 3 or 4 and n is either equal to 1 when R.sub.1 represents a methyl radical or equal to 1, 2 or 3 when R.sub.1 represents a hydrogen atom, and finishing process for fabrics based on cellulose fibers using an aminoplastic resin containing formaldehyde in the free or combined state, using a product of formula (I) as the formaldehyde collector.
    Type: Grant
    Filed: May 7, 1993
    Date of Patent: October 25, 1994
    Assignee: Societe Francaise Hoechst
    Inventors: Wilhelm Didier, Antonio Gelabert
  • Patent number: 5352418
    Abstract: A filtering material employable for a variety of application fields in the form of a sanitary mask, a deodoring filter or the like comprises calcium phosphate particles, .beta.-1,3-glucan and a band-shaped raw material, and the calcium phosphate particles each serving as a filtering medium are caused to adhere to the sheet-shaped raw material with the aid of the .beta.-1,3-glucan serving as a binder. A method of producing a filtering material is practiced by way of a first step of stirring a predetermined quantity of calcium phosphate particles and a predetermined .beta.-1,3-glucan in hot water at a high speed to prepare an aqueous treatment solution, a second step of dipping a sheet-shaped raw material in the aqueous treatment solution and taking up the sheet-shaped raw material, and a third step of drying the sheet-shaped raw material after completion of the taking-up operation.
    Type: Grant
    Filed: November 5, 1992
    Date of Patent: October 4, 1994
    Assignees: Sumiaki Tsuru, Kunihiro Yamamoto
    Inventor: Sumiaki Tsuru
  • Patent number: 5342656
    Abstract: Flame retarding and smoke retarding aqueous solutions consisting essentially of: 70-96 weight % of a mixture of ammonium phosphate and ammonium sulphate, 1-20 weight % NaHCO.sub.3, 1-10 weight % EDTA, and water in an amount resulting in an aqueous solution comprising 11-45 weight % solids on the basis of the total weight of the aqueous solution. Methods of producing and using the flame retarding and smoke retarding aqueous solutions to impregnate absorbent porous materials, such as wood, rayon, cotton, wool and similar textile materials are also taught.
    Type: Grant
    Filed: January 2, 1992
    Date of Patent: August 30, 1994
    Inventor: Arve Valso
  • Patent number: 5326587
    Abstract: The invention disclosed herein provides for automatically controlling positioning of a moistening nozzle relative to an envelope flap being moved therepast at high speed. The invention has particular application as an envelope flap moistener in a high speed mailing machine. Envelopes are moved to and past the nozzle at a speed of at least about 65 inches per second along a given path with the flap extending from the envelope in an opened configuration thereof. A sensor attached to the nozzle senses the location of the edge of the flap within about 0.2 inch of the nozzle upstream thereof a plurality times as the flap moves to and past the nozzle. The nozzle is then positioned to track the flap edge in accordance with sensing of the envelope flap. The nozzle may be pre-positioned by a lower bandwidth servo system having an envelope sensor located further upstream of the tracking sensor. A higher bandwidth servo loop controls tracking of the nozzle in response to the tracking sensor.
    Type: Grant
    Filed: April 13, 1992
    Date of Patent: July 5, 1994
    Assignee: Pitney Bowes Inc.
    Inventor: Norman J. Bergman
  • Patent number: 5281439
    Abstract: The process is particularly well suited to the manufacture of composite materials, where a fibrous reinforcement texture is to be impregnated by a densifying matrix, and comprises the steps of:preparing a slurry containing a solid charge in the form of finely divided particles dispersed in a carrier liquid, which preferably contains an organic compound,placing a substrate inside an enclosure,creating a vacuum inside the enclosure, andcausing the slurry to pass through the substrate by means of a pressure difference.Uniformity of charge integration is ensured by forcing the slurry to pass through the substrate several times, in successively opposite directions. The concentration of solid charge in the slurry can be determined as a function of an intended charge percentage by volume in said substrate.
    Type: Grant
    Filed: June 16, 1992
    Date of Patent: January 25, 1994
    Assignee: Societe Europeenne de Propulsion
    Inventors: Jean-Luc Leluan, Jacques Rey, Christian Bertone, Bruno Bernard
  • Patent number: 5264243
    Abstract: This invention provides a process for deacidifying paper by contacting the paper one or more times with hydrocarbon or halocarbon solutions of certain magnesium and/or zinc alkoxyalkoxides which may have been treated with carbon dioxide to yield low viscosity solutions, drying the books and rehydrating the books.
    Type: Grant
    Filed: June 16, 1992
    Date of Patent: November 23, 1993
    Assignee: FMC Corporation
    Inventors: Robert S. Wedinger, Conrad W. Kamienski, Kent N. Smith, George R. Sandor, A. Revonda Porch, Sharon B. Smith
  • Patent number: 5252233
    Abstract: A durable hydrophilic silicone textile finish is produced on cellulose-containing textiles to impart durable hydrophilic softness and durable press properties to the textile. The silicone finish is produced from an aqueous solution of glyoxal, a reactive organomodified silicone copolymer, a glycol and an acidic catalyst. The treating composition is applied to the textile and cured by heating at an elevated temperature to bond the silicone to the cellulose.
    Type: Grant
    Filed: June 29, 1992
    Date of Patent: October 12, 1993
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventor: Anna M. Czech
  • Patent number: 5208072
    Abstract: This invention provides a process for deacidifying paper by contacting the paper with hydrocarbon or halocarbon solutions of certain magnesium and/or zinc alkoxyalkoxides which may have been treated with carbon dioxide to yield low viscosity solutions.
    Type: Grant
    Filed: November 13, 1991
    Date of Patent: May 4, 1993
    Assignee: FMC Corporation
    Inventors: Conrad W. Kamienski, Robert S. Wedinger
  • Patent number: 5185214
    Abstract: A one step process for imparting both decay resistance and fire retardancy to wood and cellulosic materials by impregnating the products with a treatment solution composed of a water soluble mixture of a tertiary and quaternary ammonium preservative compound and an organic phosphate fire retardant compound.
    Type: Grant
    Filed: June 12, 1991
    Date of Patent: February 9, 1993
    Inventors: Susan L. LeVan, Rodney C. DeGroot
  • Patent number: 5160484
    Abstract: A non-latex composition for saturating paper comprising a suitable hydrophobic sizing agent, ethylene acrylic acid co-polymer, and a softening agent. The ethylene acrylic acid copolymer is provided as bulk or solvent polymerized solid and rendered soluble in an aqueous alkali solution. The paper may be formulated to be repulpable. Methods for making the paper-saturating composition, methods for saturating paper, and the resulting paper are also disclosed.
    Type: Grant
    Filed: September 28, 1990
    Date of Patent: November 3, 1992
    Assignee: Cranston Print Works Company
    Inventor: Koyu P. Nikoloff
  • Patent number: 5156696
    Abstract: A soft, flexible, latex-paper fabric is formed by saturating cellulose or paper sheets with pre-vulcanized latex, applying a layer of polyester batting to one side thereof, and drying the composition. The finished product is a soft, workable, skin-like fabric which is resilient, strong, and durable and has a backing of polyester batting. The resulting latex-paper fabric may be easily cut, sewn, draped, and used in the manner of other conventional fabrics. It can also be easily painted and decorated. The latex-paper fabric may be used to construct a variety of objects such as handbags, knapsacks, toys, and novelty items.
    Type: Grant
    Filed: March 7, 1990
    Date of Patent: October 20, 1992
    Inventor: Thomas A. Kopian
  • Patent number: 5151238
    Abstract: Process for producing a composite material in which a cellulosic substrate is treated with a solution of a polyfunctional isocyanate in an aprotic swelling solvent and the substrate is then compressed to form the composite material. The substrate may take the form of wood chips, wood particles, wood flakes, wood fibers, wood flour, ground wood, wood veneers and wood laminates, paper, card, straw, refined cellulose such as cotton or viscose and plant fibers such as bamboo or palm fiber.
    Type: Grant
    Filed: June 5, 1989
    Date of Patent: September 29, 1992
    Assignee: National Research Development Corporation
    Inventors: Harold A. Earl, William B. Banks
  • Patent number: 5137756
    Abstract: Apparatus is provided for carrying out a varnish impregnation method wherein a sheet-like base material is sequentially passed through a low-viscosity liquid storage region storing a low-viscosity liquid such as a solvent, a thermal syphon region, and a varnish storage region storing a varnish, the thermal syphon region being positioned between the low-viscosity liquid storage region and varnish storage region and communicating with both regions at air tight seals closed by liquid surfaces, and heating the base material in the thermal syphon region to vaporize the low-viscosity liquid impregnated in the base material. When the base material passes through the low-viscosity liquid, air contained in the base material is replaced with the low-viscosity liquid and discharged outside the apparatus. The low-viscosity liquid impregnated in the material is vaporized in the thermal syphon region.
    Type: Grant
    Filed: August 1, 1991
    Date of Patent: August 11, 1992
    Assignees: Takuma Co., Ltd., Takuma Research and Development Co., Ltd.
    Inventor: Mitsuaki Harada
  • Patent number: 5137752
    Abstract: This invention relates to a labor saving system and related tools for gypsum wall board tape installation. The system consists of two elements;1. pre-processing paper drywall tape by pre-coating both sides with wet adhesive mud,2. which tape is then rolled up for convenient storage and handling for later application.The embodiment of the system's two elements are two mechanical tools; the taper tool and the mud coating tool.The mud coating tool includes three mechanical elements; a standard five gallon pail, and a cylindrical vertical extension for the pail, which supports a special frame.The frame includes a reel for a roll of drywall tape which is suspended above the pail of wet drywall mud. The frame also forms the tape path which threads the tape through the mud coating bucket. A roller on the bottom of the frame directs the tape down through the wet mud. A wiping apparatus deflects the tape path upwards and removes excess mud which falls back into the bucket.
    Type: Grant
    Filed: December 24, 1990
    Date of Patent: August 11, 1992
    Inventor: Gregory B. Mills
  • Patent number: 5137760
    Abstract: This invention relates to a process for treating a printed cellulosic article for inhibiting acid promoted deterioration thereof comprising providing in a pressure vessel containing said article, a transport medium containing carbon dioxide, and base material dispersed in said medium for transport to said article said vessel being pressurized with said carbon dioxide to between about 650 and about 1200 psi and maintained for a sufficient treatment period to cause substantial pervasion of said base material in said article, and separating said medium from said article.
    Type: Grant
    Filed: May 7, 1991
    Date of Patent: August 11, 1992
    Assignee: Document Reprocessors
    Inventor: Eric G. Lundquist
  • Patent number: 5133995
    Abstract: A process for preimpregnating reinforcing elements with a liquid substance includes the following series of steps or stages: placing the reinforcing elements in a sealable enclosure, applying a vacuum of sufficient intensity and duration to the enclosure to eliminate at least the majority of water and gas present in the reinforcing elements contained therein and introducing sufficient liquid substance into the enclosure for the substance to cover the elements once the elements have been impregnated. The device for carrying out this process includes an enclosure for containing the elements, means for applying a vacuum to the enclosure for removing at least the majority of the water and gas present in the reinforcing elements and an orifice or conduit for introducing the liquid substance into the enclosure.
    Type: Grant
    Filed: August 6, 1991
    Date of Patent: July 28, 1992
    Inventors: Anh T. Do, Michel Huvey
  • Patent number: 5132130
    Abstract: A method of handling books between a library and a treatment site in which the books are held against relative movement during transit but are released during treatment.
    Type: Grant
    Filed: March 28, 1991
    Date of Patent: July 21, 1992
    Assignee: FMC Corporation
    Inventors: Robert O. Braeutigam, William P. Pavlak
  • Patent number: 5128174
    Abstract: A structural material comprising a plurality of irregularly arranged members contacting one another with the points of contact forming junctions, the members being coated, which coating holds the members together to form a strong integral structural material and methods for producing same.
    Type: Grant
    Filed: March 11, 1991
    Date of Patent: July 7, 1992
    Inventor: Gregory R. Brotz
  • Patent number: 5089298
    Abstract: The invention relates to the impregnation of clothing, specifically Battle ress Uniforms (BDUs) used by the U.S. Military, with amylopectin fabric wrinkle inhibitor and permethrin insect/arthropod repellent in combination. In one disclosed embodiment of the invention, BDUs are loaded into a field laundry, are rinsed with clear water at 120 degrees Fahrenheit, and amylopectin is applied at a particular concentration. The BDUs preferably are then steam pressed. Permethrin at a predetermined concentration is then applied preferably by the "Individual Dynamic Absorption Application" (IDAA) procedure. The retention of permethrin by clothing treated with amylopectin unexpectedly reveals a substantially higher retention level than clothing without treatment by amylopectin after multiple laundry cycles, providing thereby a dramatic improvement in the insect/arthropod repelling action of the clothing over time.
    Type: Grant
    Filed: November 19, 1990
    Date of Patent: February 18, 1992
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Bartley F. McNally, Richard F. Lacerte
  • Patent number: 5085890
    Abstract: A method for preparing a flexible article comprising a substrate such as cellulose casing having thereon a desired indicia such as grill marks or a corporate logo, which in turn comprises a water soluble underlayer such as caramel and a water insoluble binder-sealant layer such as shellac. The binder-sealant covered colorant indicia is substantially completely transferable from the substrate to a contiguous edible surface such as a frankfurter, in the presence of moisture.
    Type: Grant
    Filed: August 30, 1990
    Date of Patent: February 4, 1992
    Assignee: Viskase Corporation
    Inventors: Vitas Niaura, Jeffery A. Oxley, Elio E. Tarika
  • Patent number: 5084307
    Abstract: This specification discloses a flame retardant vegetable fiber material and the process for the production of the same. The adopted means is to immerse the vegetable fiber into a firstly prepared inorganic solution and also into a secondary prepared inorganic solution in turn, while both solutions come into the inherent gaps of the said fiber and become an insoluable and incombustible inorganic compound therewith. The mutual contact and reaction caused by the first and second solutions generate a setting dip and fixation thereupon.
    Type: Grant
    Filed: March 10, 1989
    Date of Patent: January 28, 1992
    Inventor: Kouichi Nishimoto
  • Patent number: 5078912
    Abstract: An agent for impregnating solid wood by the pressure process, based on a water-dilutable formulation of a copper salt, excess alkanolamine and, if required, a salt with a fungicidal anion, has a pH of not less than 8 in the concentration usually employed and corresponding to about 1-5% by weight of non-aqueous components in the aqueous solution.
    Type: Grant
    Filed: May 1, 1991
    Date of Patent: January 7, 1992
    Assignee: Dr. Wolman GmbH
    Inventors: Reimer Goettsche, Hans-Norbert Marx, Wendelin Hettler, Richard Stanek, Hans-Peter Heidenreich
  • Patent number: 5068135
    Abstract: Aqueous dispersions of fluorinated polyurethanes obtained by the reaction of an organic diisocyanate with a mixture of diols containing ionizable groups and macroglycols comprising polyols and at least 1% by weight of one or more hydroxy- and/or carboxy-capped fluoropolyethers. Said fluorinated polyurethanes are salified, to transform the ionizable groups into hydrophilic cations and/or anions, and are then dispersed in water to be used in textile coatings.
    Type: Grant
    Filed: October 12, 1990
    Date of Patent: November 26, 1991
    Assignees: Ausimont S.p.A., Larac S.p.A.
    Inventors: Ignazio Zavatteri, Tiziana Gambini
  • Patent number: 5009964
    Abstract: A process is provided for forming a fire retardant composition useful for treating cellulosic materials to impart both fire retardant properties and improved thermal stability under high temperature and humidity conditions. The process comprises reacting a solution of orthophosphoric acid, urea and water having a weight ratio from about 0.1 to about 15 orthophosphoric acid per part urea for a time of about 15 minutes to about 3 hours at a temperature from about 25.degree. C. to about 90.degree. C.; adding hydroxide in an amount sufficient to adjust the pH of the solution from about 6.0 to about 9.0; reacting the solution with formaldehyde having a weight ratio from about 1.0 to about 56 total initial orthophosphoric acid per part formaldehyde for a time of about 5 minutes to about 1.5 hours at a temperature from about 25.degree. C. to about 90.degree. C., and adjusting the final pH of the solution from about 7.0 to about 8.5 with ammonium hydroxide.
    Type: Grant
    Filed: July 11, 1989
    Date of Patent: April 23, 1991
    Assignee: Osmose Wood Preserving, Inc.
    Inventors: Robert M. Leach, Michael J. Richards
  • Patent number: 4992296
    Abstract: A method of making drug abuse test papers wherein bibulous paper carriers are impregnated with specific test chemicals, (bismuth subnitrate, potassium iodide, acetic acid, and platinum salt), in two coatings and dried after each coating under specific temperature conditions. The test chemicals are provided for the detection of the drug abuse compounds of amphetamine, cocaine, marijuana, and narcotics contained in low concentrations in animal or human urine. Additionally described is a means of preserving urine samples using esters of parahydroxybenzoic acid.
    Type: Grant
    Filed: February 24, 1989
    Date of Patent: February 12, 1991
    Inventor: Jacob J. Gibson
  • Patent number: 4988559
    Abstract: A support sheet for photographic printing paper comprising a substrate sheet, polyolefin resin coating layers formed on the two surfaces of the substrate sheet, and an adhesive layer formed on a surface of the substrate sheet and one of the coating layers and comprising hydroxyethyl cellulose or a mixture of hydroxyethyl cellulose with one or more organic compounds having carboxyl radicals, the adhesive layer enabling the peel strength of the coating layer from the substrate sheet surface to be controlled to an appropriate peelable level of 10 to 200 g/25.4 mm determined in accordance with ASTM D903-49.
    Type: Grant
    Filed: November 8, 1989
    Date of Patent: January 29, 1991
    Assignee: Oji Paper Co., Ltd.
    Inventors: Hiroyuki Nemoto, Masahiro Kamiya, Tsunehisa Shigetani
  • Patent number: 4983573
    Abstract: There is disclosed an improved process for preparing a superconducting composition having the formula MBa.sub.2 Cu.sub.3 O.sub.x wherein M is selected from the group consisting of Y, Nd, Sm, Eu, Gd, Dy, Ho, Er, Tn, Yb and Lu; x is from about 6.5 to about 7.0; said composition having a superconducting transition temperature of about 90.degree. K.; said process consisting essentially of preparing a precursor solution, drying the solution to obtain a solid material, and heating and cooling the solid material under specified conditions to obtain the desired product. In another embodiment, a shaped superconducting MBa.sub.2 Cu.sub.3 O.sub.x article is prepared by impregnating an article of cellulose material with the precursor solution, drying the impregnated article, and heating and cooling the impregnated article under prescribed conditions to obtain the desired product.
    Type: Grant
    Filed: March 13, 1989
    Date of Patent: January 8, 1991
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: John D. Bolt, Munirpallam A. Subramanian
  • Patent number: 4886685
    Abstract: This invention relates to a process, which comprises spreading a metallomacrocyclic polymer dissolved in an organic, water-immiscible solvent on a water surface, removing the solvent to form a monomolecular, uniformly oriented film of said polymer on the surface of the water, immersing a substrate in the water, and withdrawing the substrate from the water, whereby said polymer film is transferred from the water surface to the substrate.
    Type: Grant
    Filed: November 23, 1988
    Date of Patent: December 12, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Gerhard Wegner, Ernst Orthmann
  • Patent number: 4828917
    Abstract: A layer element comprises a base having a hydrophobic surface and, applied on this, one or more solid, thin, ordered layers of defined uniform and regular structure, in particular monolayers or multilayers, having a uniform orientation of the layer-forming molecules in one direction. The said layers are formed from a metallomacrocyclic polymer which is fusible and/or soluble in an organic, water-immiscible solvent and is of the general formula [M(Pcyc)O].sub.n, where M is Si, Ge or Sn, (Pcyc) is a complex-forming centrosymmetric polycyclic ring system, in particular a phthalocyanine ring system having hydrophobic substituents, and n is the mean degree of polymerization and is equal to or greater than 3. The novel layer elements can advantageously be produced by the Langmuir-Blodgett technique, in which a solid-like monolayer produced on a water surface from the metallomacrocyclic polymers is transferred to a substrate having a hydrophobic surface by immersion and withdrawal of the said substrate.
    Type: Grant
    Filed: May 8, 1987
    Date of Patent: May 9, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Gerhard Wegner, Ernst Orthmann
  • Patent number: 4816290
    Abstract: A process of forming a solid granular film is disclosed, which comprises dispersing solid granules into a liquid with the aid of a dispersant, removing the dispersant from the resulting dispersion to suspend the solid granules at the vapor-liquid interface, and transferring the solid granules onto a support, whereby high covering power is attained with respect to solid granules.
    Type: Grant
    Filed: April 9, 1987
    Date of Patent: March 28, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tatsuo Heki, Noriyuki Inoue
  • Patent number: 4808479
    Abstract: A warp yarn sizing composition and method of making and using same as a warp yarn size to control the abrasion between a warp yarn and a filling yarn in which a paste comprising a noncongealing, hydrophilic, starch ether or ester or combinations thereof exhibiting five gram alkali fluidity from about 10 millimeters to about 97 millimeters and a thin boiling starch is slashed to the warp yarn prior to a weaving operation and whose use, following the weaving operation, results in significantly shortened laundry cycles at lower temperatures, without detergents to achieve a soft hand form denim.
    Type: Grant
    Filed: September 23, 1987
    Date of Patent: February 28, 1989
    Assignee: Penick & Ford, Limited
    Inventor: Charles J. Fox
  • Patent number: 4781974
    Abstract: An antimicrobially active wet wiper and a method of making the wiper. The wet wiper has an antimicrobially active non-woven web that includes: (i) bonded fibers; (ii) a binder in an amount effective to bind the fibers; and (iii) a first antimicrobial agent that is substantive to the fibers and to the binder when the web is either wet or dry. The web is maintained in a wet condition in a liquid containing a second antimicrobial agent until use.
    Type: Grant
    Filed: March 9, 1987
    Date of Patent: November 1, 1988
    Assignee: James River Corporation
    Inventors: Michael P. Bouchette, Joseph H. Miller
  • Patent number: 4772493
    Abstract: A process for impregnating a continuous sheet of glass fibre web, paper, carbon fibre, cloth etc., which comprises feeding the sheet continuously into a closed vessel filled to a suitable height with a polymer solution, immersing the sheet under the surface of polymer solution while causing solvent boiling to occur and solvent vapor bubbles to flow out of the sheet, whereby bubbles of gas, such as air held or absorbed in the sheet during the immersion, are automatically removed from the sheet and then withdrawing the sheet from the vessel.
    Type: Grant
    Filed: November 27, 1987
    Date of Patent: September 20, 1988
    Assignee: Perstorp AB
    Inventors: Alan N. Syrop, Richard W. Eve, Stephen Temple
  • Patent number: 4740391
    Abstract: A saturator of the type which includes a chamber situated between a chamber defining element and a mandrel, in which a web is moved through the chamber to impregnate the web with a saturant contained in the chamber, includes a chamber defining element which defines an array of grooves. The grooves are separated by raised surfaces. The raised surfaces cooperate with the mandrel to pressurize the saturant in a high pressure zone which causes a relatively large amount of saturant to enter the web. The grooves define respective low pressure zones, which cause a reduced amount of saturant or no saturant to impregnate the web. A desired pattern of impregnation of the web can be obtained by properly positioning the grooves with respect to the raised surfaces on the chamber defining element.
    Type: Grant
    Filed: January 9, 1987
    Date of Patent: April 26, 1988
    Assignee: Miply Equipment, Inc.
    Inventor: Eliot R. Long
  • Patent number: 4710394
    Abstract: This invention relates to a dry preparation containing essentially 1-6% by weight of citric acid, 30-60% by weight of a dye and 40-60% by weight of an inorganic salt. Said preparation may be used in solution to preserve plants.
    Type: Grant
    Filed: July 28, 1986
    Date of Patent: December 1, 1987
    Inventor: Eric L. Sellegaard
  • Patent number: 4690854
    Abstract: An electrically conducting material including a polymeric substrate containing mercapto, thiocarbonyl, quaternary ammonium salt, amino or isocyanato groups, and copper sulfide bound to the polymeric substrate. The electrically conducting material may be prepared by treating the polymeric substrate with a source of monovalent copper ions and a sulfur-containing compound to form copper sulfide bound to the polymeric substrate.
    Type: Grant
    Filed: September 18, 1985
    Date of Patent: September 1, 1987
    Assignee: Nihon Sanmo Dyeing Co., Ltd.
    Inventors: Shinji Tomibe, Reizo Gomibuchi, Kiyofumi Takahashi, Noboru Kato
  • Patent number: 4664956
    Abstract: A method for preserving natural plant material comprising immersion, under about 3 to 30 psig (0.21-2.1 kg/cm.sup.2 gauge) pressure, the material in ethylene glycol having a specific gravity of 1.03-1.10 for a period of 4 hours to 5 days. The material is then withdrawn, washed and dried for use or further treatment. The spent ethylene glycol is restored to its original volume with virgin ethylene glycol and re-used many times without purification. The preserved plant material is topically coated with a hydrophilic polymeric sealer optionally blended with a pigment.
    Type: Grant
    Filed: July 25, 1986
    Date of Patent: May 12, 1987
    Inventors: Jeffrey L. Dokkestul, Leo A. Ochrymowycz