Wax Patents (Class 162/172)
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Patent number: 6544386Abstract: A process for producing additive composition treated multi-ply tissue products is disclosed. In accordance with the present invention, at least one (1) ply of the tissue product is treated with an additive composition, such as a lotion. Once the additive composition is applied to the tissue product, the tissue is then hot embossed by being fed through, for example, a heated bonding nip. It has been discovered that the hot embossing step improves the adhesion between the multiple plies.Type: GrantFiled: December 27, 1999Date of Patent: April 8, 2003Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Duane G. Krzysik, Barbara S. Funk, David G. Biggs, Bernhardt E. Kressner
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Publication number: 20030051842Abstract: There is provided a photocatalytic pulp composition having the antibacterial, bad smell degrading and harmful substance oxidatively degrading effects in various wide uses such as a filter material, a packaging material, a building material. A photocatalytic pulp composition is effectively used in the air treatment, the water treatment and the soil treatment and improves the photocatalytic activity effect itself.Type: ApplicationFiled: May 17, 2002Publication date: March 20, 2003Inventor: Sadao Nishibori
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Publication number: 20030000668Abstract: A method of applying treatment chemicals to a fiber-based planar product, particularly tissue, includes the steps of: a) applying a treatment composition containing the treatment chemicals to a revolving belt (1) and b) bringing the revolving belt (1) into contact with the moving fiber-based planar product (3), thereby transferring the treatment composition from the revolving belt (1) via the contact surface to the moving fiber-based planar product (3). An apparatus suitable for performing this method, includes: at least one application element (4, 5) for applying treatment compositions to a revolving belt (1), and the revolving belt (1) that is in contact with moving fiber-based planar product (3) via a contact surface and transfers the applied treatment composition via this contact surface to the moving fiber-based planar product (3).Type: ApplicationFiled: June 27, 2002Publication date: January 2, 2003Inventor: Stephan Eichhorn
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Publication number: 20020162637Abstract: An absorbent and time release material formed from a dried pulp impregnated with an impregnating substance such as wax or oil, that is ground to a powder or pellet form. The material can be used to suppress fires, reclaim land, retain water, provide traction on slippery surfaces, and enhance or replace soil mixes.Type: ApplicationFiled: April 13, 2001Publication date: November 7, 2002Inventor: D. Lee Manner
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Patent number: 6468394Abstract: An object of the present invention is to provide a method of preventing the over-adhesion of paper onto the surface of a press roll for a long time and preventing both wear and contamination in a paper machine. To do so, there is adopted a method of, in a press roll in a state in which paper is being supplied by driving a paper machine, preventing the over-adhesion of the paper onto a surface of the press roll, wherein wax whose melting point is lower than the surface temperature of the press roll is continuously supplied to a direct surface of the rotating press roll by the amount of 0.01 to 10 mg/m2, that is a calculation on the basis of passing paper.Type: GrantFiled: November 30, 2000Date of Patent: October 22, 2002Assignee: Maintech Co., Ltd.Inventors: Kunio Sekiya, Hiroshi Sekiya
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Publication number: 20020148583Abstract: A tissue paper penetrated with a lotion composition being a liquid, viscous W/O emulsion includesType: ApplicationFiled: January 22, 2002Publication date: October 17, 2002Inventors: Guido Baumoller, Rolf Kawa, Stephan Eichhorn
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Publication number: 20020139500Abstract: Pulp fibers can be treated with water insoluble chemical additives resulting in a minimal amount of unretained water insoluble chemical additives present after redispersing the treated pulp fibers in the process water. One embodiment of the present invention is a method for preparing chemically treated pulp fiber. A fiber slurry is created comprising process water and pulp fibers. The fiber slurry is transported to a web-forming apparatus of a pulp sheet machine thereby forming a wet fibrous web. The wet fibrous web is dried to a predetermined consistency thereby forming a dried fibrous web. The dried fibrous web is treated with a water insoluble chemical additive thereby forming a chemically treated dried fibrous web containing chemically treated pulp fibers.Type: ApplicationFiled: March 7, 2001Publication date: October 3, 2002Inventors: Troy Michael Runge, Louise Cynthia Ellis Coe, Mike Thomas Goulet, Sheng-Hsin Hu
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Patent number: 6440269Abstract: A paper-based sheet for wallcoverings that is made in a single pass on a standard paper making machine is described. The sheet has a print side and a barrier side and is made from softwood pulp in an amount of about 15% to about 40% by dry weight; hardwood pulp in an amount of about 30% to about 55% by dry weight; and, mineral filler in an amount of about 15% to about 30% by dry weight. A first coating is applied to the print side of the sheet in an amount of about 5 to about 20 gm/m2 dry weight. A second coating is applied to the barrier side of the sheet in an amount of about 2.5 to about 10 gm/m2 dry weight. The advantage is a strong, durable, alkaline wallcovering that is less expensive to produce, and provides a smooth print surface.Type: GrantFiled: December 6, 1999Date of Patent: August 27, 2002Assignee: Domtar, Inc.Inventor: Harold Freeburn
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Patent number: 6416628Abstract: A method of producing dimensionally stable paper and/or paperboard products by treating a hygroreactive cellulosic fiber matrix with a hydrophobic sizing agent solution; and drying the treated fibers using heat and/or pressure so that the hydrophobic sizing agent penetrates the fiber matrix making it hydrophobic.Type: GrantFiled: December 21, 1998Date of Patent: July 9, 2002Assignee: International Paper CompanyInventors: Yan C. Huang, Murray Bruce Lyne, Clifford Kent Hatcher, Gurudatta D. Nadkarni
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Patent number: 6294265Abstract: Composite cellulose containing materials which are waterproof and biodegradable are produced which consist essentially of cellulose and hydrophobic polymer-based composition in the amount about 4 to 40 wt %. The polymer-based composition comprises first polymer, which is partially saponified polyvinyl acetate, second polymer, which functions as plasticizer for improving elasticity of the first polymer and cross-linking agent, which is capable to cross-link the first polymer. The polymer-based composition may additionally contain environmentally friendly hydrophobizators, fillers and pigments.Type: GrantFiled: September 23, 1999Date of Patent: September 25, 2001Assignee: Rademate Ltd.Inventors: Michael Ioelovich, Oleg Figovsky
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Patent number: 6280572Abstract: A method of producing dimensionally stable paper and/or paperboard products by treating a hygroreactive cellulosic fiber matrix with a hydrophobic sizing agent solution; and drying the treated fibers using heat and/or pressure so that the hydrophobic sizing agent penetrates the fiber matrix making it hydrophobic.Type: GrantFiled: December 21, 1998Date of Patent: August 28, 2001Assignee: International Paper CompanyInventors: Yan C. Huang, Murray Bruce Lyne, Clifford Kent Hatcher, Gurudatta D. Nadkarni
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Patent number: 6270878Abstract: A wipe product comprises a substrate and functional additive, preferably a high internal phase inverse emulsion, disposed in a discontinuous pattern on the substrate such that the pattern provides areas coated with the emulsion and areas free of the emulsion. When the product is wound into a roll, any two adjacent layers in the roll have their areas coated with the functional additive offset relative to each other. This improves water-retaining characteristics and roll compressibility characteristics of the product. Preferably, the functional additive of one layer is supported by the areas free of the functional additive of the adjacent layer. During the use, upon the application of pressure to the wipe, the emulsion locally expresses water useful for cleaning. The discontinuous pattern of the emulsion provides regions of the substrate which are wetted during use and regions which may remain dry. The wetted regions transfer water to the surface to be cleaned.Type: GrantFiled: May 27, 1999Date of Patent: August 7, 2001Assignee: The Procter & Gamble CompanyInventors: George Vincent Wegele, Steven Lee Barnholtz
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Patent number: 6210475Abstract: The present invention is directed to paper sizing emulsions, a method of making sizing emulsions, a method of sizing paper products, such as paper and board, and paper or board made using the method and the sizing emulsions of the invention. The paper sizing emulsions of the invention contains at least one sizing agent and a cationic liquid hydroxyalkylated starch that is pumpable and at least partially degraded. Typically, before dilution for mixing with the sizing material, the starch exists as a liquid in water and contains solids in an amount up to about 30 percent by weight, and has a viscosity of up to about 30,000 cps. The starch is diluted with water, before emulsifying the sizing agent to reduce the solids to an amount suitable for emulsification, and used to emulsify the sizing agent. The resulting emulsion can then be used to size paper and board.Type: GrantFiled: September 3, 1999Date of Patent: April 3, 2001Assignee: Bayer CorporationInventors: David L. Dauplaise, Robert Joseph Proverb, Katarzyna Komarowska
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Patent number: 6207014Abstract: The invention concerns in particular a composition for a softening lotion used in fiber treatment. In the invention, the lotion composition is aqueous and liquid at a temperature of at least 5° C. and comprises, as active substances: (a) one or more saturated linear fatty alcohols having at least 16 carbon atoms, and (b) one or more waxy esters having a total of at least 24 carbon atoms. The application of the invention is to the manufacture of fibrous products such as disposable absorbent paper products.Type: GrantFiled: September 10, 1998Date of Patent: March 27, 2001Assignees: Fort James France, Sidobre SinnovaInventors: Christian de Haut, Benoit Abribat, Maria Da Silva Marques, Bruno Bret, Jean-Francois Leboeuf
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Patent number: 6165320Abstract: This invention relates to a method of sizing paper comprising use of a sizing composition comprising: (a) at least one thermoplastic resin selected from the group consisting of thermoplastic rosins having an acid number less than 50, thermoplastic hydrocarbon resins, thermoplastic polyamides and thermoplastic amide waxes; (b) starch; and (c) surfactant. The sizing takes place substantially in the absence of alum or other aluminum based fixing agents.Type: GrantFiled: June 28, 1999Date of Patent: December 26, 2000Assignee: Hercules IncorporatedInventors: Robert Bates, Gerard J. Broekhuisen, Edwin R. Hensema, Malcolm J. Welch
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Patent number: 6010596Abstract: An improved water resistant gypsum board is made by adding an aqueous wax emulsion containing a cationic surfactant to an aqueous slurry containing calcium sulfate and host particles at a slurry temperature which maintains calcium sulfate hemihydrate crystals. The wax emulsion is stable at the temperature of slurry which maintains the calcium sulfate hemihydrate. The slurry is then dewatered and rehydrated to form a gypsum board and dried at a temperature to melt the wax.Type: GrantFiled: December 20, 1996Date of Patent: January 4, 2000Assignee: United States Gypsum CompanyInventor: Weixin Song
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Patent number: 5935384Abstract: A water-disintegrable paper which can be used in the same way as the ordinary toilet paper and shows excellent water disintegrability, wiping out property, feel, and moisture retaining property is provided, the water-disintegrable paper comprising: a water-disintegrable body paper; one or more components selected from glycerol, diglycerol, polyethylene glycol having an average molecular weight in a desired range, sorbitol, propylene glycol, 1,3-butylene glycol, glycine betaine, pyrrolidone carboxylic acid, pyrrolidone carboxylic acid salt, maltitol, and sodium lactate, as a humectant; and one or more components selected from sodium carboxymethylcellulose, a starch, a denatured starch, guar gum polyvinyl alcohol, and polyacrylamide, as a dry paper strength additive.Type: GrantFiled: July 21, 1997Date of Patent: August 10, 1999Assignee: Kawano Paper Co. LtdInventor: Kenji Taniguchi
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Patent number: 5885697Abstract: A soft tissue product is disclosed having uniformly distributed surface deposits of a solidified composition having a melting point of from about 30.degree. C. to about 70.degree. C. The solidified composition is applied to the outer surfaces of the tissue product in melted form, preferably by rotogravure printing. The solidified composition contains an oil, a wax, and preferably a fatty alcohol.Type: GrantFiled: December 12, 1997Date of Patent: March 23, 1999Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Duane Gerard Krzysik, Lee Patrick Garvey, Cynthia Watts Henderson, Michael Chauncey Tuck
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Patent number: 5865953Abstract: Making paper for corrugating medium includes forming a sheet of pulp material, partially drying the sheet of pulp material to provide a partially dried sheet, applying a crack-reducing agent to surfaces of the partially dried sheet, and providing a sheet of paper by drying the partially dried sheet after applying the crack-reducing agent. Forming a sheet of pulp material may include providing a pulp slurry to a headbox having a slice and carrying the pulp slurry that exits from the slice away from the headbox using, for example, a Fourdrinier. The Fourdrinier may also dry the sheet.Type: GrantFiled: August 30, 1996Date of Patent: February 2, 1999Assignee: Merrimac Paper Company, Inc.Inventors: Mark A. Rottger, Mark R. Leonard
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Patent number: 5626719Abstract: A process for increasing the resistance of the cut edges of liquid packaging board to penetration by hot hydrogen peroxide, comprising adding to an aqueous pulp slurry at a neutral to alkaline pH, either separately or in preblended form an aqueous emulsion of a cellulose-reactive size, a non-cellulose-reactive size selected from the group consisting of waxes, bis-stearamides, and fatty acid derivatives, and a thermosetting resin that is capable of covalent bonding to cellulose fibre and self-cross-linking.Type: GrantFiled: June 7, 1995Date of Patent: May 6, 1997Assignee: Hercules IncorporatedInventors: Anthony C. Tansley, John D. Ballantine
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Patent number: 5614293Abstract: A soft uncreped throughdried tissue product is disclosed having uniformly distributed surface deposits of a chemical composition which imparts a benefit to the user, such as a reduction in skin irritation during use. Particularly suitable compositions are those which have a melting point of from about 30.degree. C. to about 70.degree. C. and which are applied to the outer surfaces of the tissue product in melted form, preferably by rotogravure printing. A suitable composition contains an oil, a wax, and preferably a fatty alcohol.Type: GrantFiled: March 19, 1996Date of Patent: March 25, 1997Assignee: Kimberly-Clark CorporationInventors: Duane G. Krzysik, Theodore E. Farrington, Jr., Lee P. Garvey, Cynthia W. Henderson, Robert D. Sauer, Michael J. Smith, Michael C. Tuck
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Patent number: 5601871Abstract: A soft uncreped throughdried tissue product is disclosed having uniformly distributed surface deposits of a chemical composition which imparts a benefit to the user, such as a reduction in skin irritation during use. Particularly suitable compositions are those which have a melting point of from about 30.degree. C. to about 70.degree. C. and which are applied to the outer surfaces of the tissue product in melted form, preferably by rotogravure printing. A suitable composition contains an oil, a wax, and preferably a fatty alcohol.Type: GrantFiled: February 6, 1995Date of Patent: February 11, 1997Inventors: Duane G. Krzysik, Theodore E. Farrington, Jr., Lee P. Garvey, Cynthia W. Henderson, Robert D. Sauer, Michael J. Smith, Michael C. Tuck
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Patent number: 5456800Abstract: A process for increasing the resistance of the cut edges of liquid packaging board to penetration by hot hydrogen peroxide, comprising adding to an aqueous pulp slurry at a neutral to alkaline pH, either separately or in preblended form an aqueous emulsion of a cellulose-reactive size, a non-cellulose-reactive size selected from the group consisting of waxes, bis-stearamides, and fatty acid derivatives, and a thermosetting resin that is capable of covalent bonding to cellulose fiber and self-cross-linking.Type: GrantFiled: July 19, 1993Date of Patent: October 10, 1995Assignee: Hercules IncorporatedInventors: Anthony C. Tansley, John D. Ballantine
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Patent number: 5026457Abstract: The present invention provides a process for sizing in the production of paper, cardboard, paperboard and other cellulose-containing materials with and without filling materials and/or pigments by natural or synthetic sizing agents under neutral to weakly basic pH conditions without the use of aluminum salts, wherein sizing is carried out with a combination of natural or synthetic sizing agents with a cationic dicyandiamide resin.Type: GrantFiled: February 28, 1989Date of Patent: June 25, 1991Assignee: SKW Trostberg AktiengesellschaftInventors: Rudolf Eichinger, Horst Michaud, Josef Seeholzer
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Patent number: 4919724Abstract: Stabilized aqueous emulsions of ketene dimer and nonreactive hydrophobe and method for sizing unbleached fibers and undigested wood chips for use in building products are provided.Type: GrantFiled: January 17, 1989Date of Patent: April 24, 1990Assignee: Hercules IncorporatedInventors: Marco F. Cenisio, Vido J. Vareika
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Patent number: 4567215Abstract: A novel economical hardboard is provided which comprises (a) about 1-40 wt % of a porous additive having a particle size in the range of about 0.1-2 mm; (b) about 65-97 wt % of cellulose fibers; (c) about 2-5 wt % binder; and (d) about 1-4 wt % wax. Also provided is an efficient economical process for the production of the above described inventive hardboard comprising the steps of formulating an aqueous mixture of the above ingredients, then dewatering the aqueous mixture, and finally heating the mixture at a temperature and time sufficient to cure the binder.Type: GrantFiled: March 8, 1985Date of Patent: January 28, 1986Assignee: Manville Service CorporationInventor: Fred L. Jackson
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Patent number: 4404252Abstract: A waferboard having at least one surface rendered water resistant and stabilized against wafer loss is disclosed. In the past heavy paper overlays have been used on panel surfaces. However, these paper overlays are specially treated non-porous paper and generally have to be specially applied by the addition of a glue. The waferboard of the present invention is formed of wood wafers bonded together in a hot press with adhesive resin and wax, and having a layer of porous paper bonded in the hot press to at least one surface of the waferboard. In one embodiment, the contours of the wood wafers on the surface of the waferboard are transmitted through the layer of porous paper.Type: GrantFiled: September 16, 1981Date of Patent: September 13, 1983Assignee: MacMillan Bloedel LimitedInventors: Bernard H. Hetzler, Hugh V. Martin
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Patent number: 4396673Abstract: Sheets or moulded bodies, for example particle board, are manufactured by hot pressing a lignocellulosic material in contact with an organic polyisocyanate and a wax release agent which is a vegetable wax, a modified vegetable oil, a microcrystalline wax or a mineral wax, said wax release agent having a melting point of at least 70.degree. C. Preferably the wax release agent is applied to the lignocellulosic material in the form of a dispersion in an aqueous emulsion of the polyisocyanate. The process facilitates the release of the sheets or moulded bodies from the caul plates or platens of the press.Type: GrantFiled: August 3, 1981Date of Patent: August 2, 1983Assignee: Imperial Chemical Industries LimitedInventors: George W. Ball, James P. Brown, Graham Gibbins, Robert S. Hampson
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Patent number: 4245689Abstract: An improved dimensionally stable backing web is disclosed, especially for resilient flooring product and linoleum, comprising cellulosic fiber, a binder, antioxidant, fungicide and glass fiber, as well as optionally dyes or pigments, surfactants and vulcanizing agents. Also optionally present are calcium silicate mineral fiber or synthetic fiber, such as polyolefin, polyester, nylon, acrylic or modacrylic fiber, a cellulose acetate or mixtures thereof. The binder can be a natural rubber or synthetic rubber latex or mixtures thereof. The synthetic rubber latex is preferably selected from the following: styrene-butadiene; carboxylated styrene-butadiene, polyacrylic ester, polyvinyl acetate; polyisobutylene, a copolymer formed from vinyl acetate monomers and acrylic acid; polychloroprene, acrylonitrile-butadiene or carboxylated acrylonitrile-butadiene; polyurethane; a copolymer of ethylene and vinyl acetate; or other elastomeric copolymers.Type: GrantFiled: May 2, 1978Date of Patent: January 20, 1981Assignee: Georgia Bonded Fibers, Inc.Inventors: Henry P. Grard, Daniel LaVietes, Edmond M. Mergelsberg
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Patent number: 4198267Abstract: The drainage of pulp sheet is improved by treatment of the pulp prior to entry to the sheet making machine with a composition comprising a suspension of finely-divided hydrophobic lubricating particles in a suitable carrier liquid. The invention has particular applicability to paper making wherein the smoothness and printability of the paper is improved and to pulp drying.Type: GrantFiled: January 11, 1978Date of Patent: April 15, 1980Assignee: Dorset Industrial Chemicals Ltd.Inventor: Edwin H. Flaherty
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Patent number: 4184914Abstract: A method of reducing the number or amount of chemical additives normally incorporated into paper pulp furnish before transferring the latter to the continuous wire mesh of a papermaking machine in the manufacture of paper sheet involves the use of a hydrolyzed proteinaceous foam which does not appreciably affect the degree of sizing of the finished paper sheet. The use of such foam in paper manufacture can render unnecessary the chemical treatment of effluent from the papermaking machine which is normally required to avoid environmental pollution.Type: GrantFiled: May 24, 1977Date of Patent: January 22, 1980Inventor: Byron Jenkins
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Patent number: 4133927Abstract: A composite material including a rubber elastomer substrate and a polytetrafluoroethylene resin film or sheet having a porosity of 20 to 95% by volume and being laminated on at least one portion of the rubber elastomer substrate. In one preferred embodiment, a process for the production of the composite material includes the step of laminating a vulcanizable rubber elastomer with a porous film or sheet of polytetrafluoroethyle resin at a temperature and pressure sufficient to effect vulcanization of the rubber elastomer.Type: GrantFiled: October 18, 1976Date of Patent: January 9, 1979Assignee: Kaikin Kogyo Co., Ltd.Inventors: Masayasu Tomoda, Yutaka Ueta
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Patent number: 4017431Abstract: Disclosed are essentially stable aqueous dispersions of wax--fatty acid blends, wax-ketene dimer blends, or mixtures thereof; a water-soluble cationic resin dispersing agent; and water. The dispersions are useful in the sizing of paper.Type: GrantFiled: June 17, 1976Date of Patent: April 12, 1977Assignee: Hercules IncorporatedInventor: Paul Harwood Aldrich
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Patent number: 3985932Abstract: By providing a dispersion system which incorporates hard waxes having high molecular weights and a melting point greater than 180.degree.F., a unique paper coating additive is achieved. Preferably, the wax is powdered to a particle size less than 50 microns, and is dispersed in a system compatible with typical paper coating colors. In the preferred embodiments, high molecular weight Fischer-Tropsch waxes are employed.Type: GrantFiled: August 5, 1974Date of Patent: October 12, 1976Assignee: Moore and MungerInventor: Rotheus Byram Porter
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Patent number: 3982993Abstract: A process for treatment of a cellulosic paper sheet in which the cellulosic fibers are treated with a polyamine or polyamide and a mixture of wax emulsion, urea-formaldehyde and an aldehyde donor such as a tris nitromethane or an oxazolidine.Type: GrantFiled: September 8, 1975Date of Patent: September 28, 1976Assignee: Georgia-Pacific CorporationInventor: Rodger L. Fife