With Water Nrm Patents (Class 524/475)
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Patent number: 6258882Abstract: Polish formulations are provided which comprise: a) an aliphatic hydrocarbon solvent comprising 0-10% aromatic hydrocarbons; b) an acrylic resin; and c) a wax product that is thermoplastic, transparent, a solid at room temperature and has a melting/softening point of about 60° to about 90° C.; wherein wt:wt ratio of said acrylic resin and wax is about 1:3 to about 1:8 and the wt:wt ratio of said resin and wax to said solvent is about 1:1 to about 1:9. The formulations function as surface polishes that can be used on any hard surface including wood, metal, stone, and other non-porous surfaces.Type: GrantFiled: December 23, 1998Date of Patent: July 10, 2001Assignee: The Smithsonian InstitutionInventor: Melvin Joseph Wachowiak, Jr.
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Patent number: 6207738Abstract: A coating composition for fabrics includes wetted microspheres containing a phase change material dispersed throughout a polymer binder, a surfactant, a dispersant, an antifoam agent and a thickener. Preferred phase change materials include paraffinic hydrocarbons. The microspheres may be microencapsulated. To prepare the coating composition, microspheres containing phase change material are wetted and dispersed in a dispersion in a water solution containing a surfactant, a dispersant, an antifoam agent and a polymer mixture. The coating is then applied to a fabric.Type: GrantFiled: May 5, 1997Date of Patent: March 27, 2001Assignee: Outlast Technologies, Inc.Inventors: Joseph L. Zuckerman, Robert J. Pushaw, Bernard T. Perry, Daniel M. Wyner
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Patent number: 6107383Abstract: Solid form additive systems which are dispersible in aqueous media are disclosed, as are methods for preparing such additive systems and methods for dispersing such additive systems in aqueous media. Also disclosed are methods for applying additives to polymeric particles and the polymeric particles treated by such methods. These polymeric particles can be made into articles that can be used in a wide range of applications, e.g., as film or packaging for food, medicine and the like.Type: GrantFiled: February 22, 1994Date of Patent: August 22, 2000Assignee: Eastman Chemical CompanyInventor: Mahendra K. Sharma
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Patent number: 6072024Abstract: A process is disclosed for producing with good productivity a cross-linked polyaspartic acid resin having biodegradability and high water absorbency. The process features inclusion of one of the following steps: (a) a polysuccinimide, which has been brought into a dispersed state by a dispersant, and a cross-linking agent are reacted to produce the cross-linked polyaspartic acid resin; (b) imide rings of a cross-linked polysuccinimide are subjected to a hydrolysis reaction while controlling a swelling degree of a resulting gel, whereby the cross-linked polyaspartic acid resin is produced; and (c) a gel of a cross-linked polysuccinimide, which has been obtained by reacting a cross-linking agent to a solution of a polysuccinimide in an organic solvent, is disintegrated to subject imide rings of the cross-linked polysuccinimide to a hydrolysis reaction, so that the cross-linked polyaspartic acid resin is produced.Type: GrantFiled: March 17, 1998Date of Patent: June 6, 2000Assignee: Mitsui Chemicals, Inc.Inventors: Yoshihiro Irizato, Makoto Sukegawa, Toshio Katoh, Hiroaki Tamatani, Akinori Nagatomo, Masaru Wada
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Patent number: 5962074Abstract: A wax composition comprising a wax component and a copolymer. The copolymer comprises a backbone, a pendant aliphatic group, a pendant fluorinated group, and a pendant polydiorganosiloxane group. Also, a wax composition comprising a silicone fluid, solvent, and an alkoxylated wax component, the alkoxylated wax component comprising one or poly(alkoxy) groups attached to the wax component at a free alcohol group, a free acid group, or an olefinic group.Type: GrantFiled: June 5, 1996Date of Patent: October 5, 1999Assignee: 3M Innovative Properties CompanyInventor: Mark R. Wollner
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Patent number: 5945251Abstract: 1. A process for preparing a purified solution of blocked polyhydroxystyrene resin in reaction/photoresist solvent, comprising the steps of:(1) forming an impure reaction solution comprising blocked polyhydroxystyrene resin and acidic catalyst in reaction/photoresist solvent;(2) adding amine, at least one hydrophilic solvent, at least one hydrophobic solvent and water to said impure reaction solution, thereby forming an aqueous phase comprising water, the hydrophilic solvent, and at least one salt of the amine and the acidic catalyst and an organic phase comprising the hydrophilic solvent, the hydrophobic solvent, the reaction/photoresist solvent and the blocked polyhydroxystyrene resin;(3) separating the aqueous phase from the organic phase; and(4) removing the hydrophilic solvent and the hydrophobic solvent from the organic phase, thereby forming a purified solution of blocked polyhydroxystyrene resin in reaction/photoresist solvent.Type: GrantFiled: May 8, 1998Date of Patent: August 31, 1999Assignee: Olin CorporationInventor: James M. Davidson
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Patent number: 5939479Abstract: There is provided a removable, repositionable and guillotinable pressure-sensitive construction comprising a backing having thereon an acrylic emulsion adhesive modified by a wax surfactant or mixtures thereof.Type: GrantFiled: November 22, 1991Date of Patent: August 17, 1999Assignee: Avery Dennison CorporationInventors: Jessie C. Reaves, Shiaonung J. Su, Peter R. von Kleist
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Patent number: 5837089Abstract: This invention is a method of using a heat activatable adhesive for laminating vinyl sheet to wood. The organic solvent-free adhesive combines a reactive styrene-acrylic latex emulsion, an ethylene vinyl acetate copolymer emulsion, and a wax. After application to the vinyl substrate the adhesive is heat activated at temperatures as low as 160.degree. F. (71.degree. C.) and the laminate resists delamination at 190.degree. F. (88.degree. C.).Type: GrantFiled: April 22, 1996Date of Patent: November 17, 1998Assignee: Ashland Inc.Inventor: Glenn Robert Magrum
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Patent number: 5834533Abstract: A stable liquid suspension composition comprising a liquid carrier, a solid fatty acid or a salt thereof, and a solid particulate is disclosed wherein said liquid carrier is selected from the group consisting of oils, olefins, terpenes, glycols, esters, ethers, alcohols, and combinations of any two or more thereof and said liquid carrier, solid fatty acid or salt thereof, and solid particulate are each present in said composition in a stabilizing amount sufficient to produce a stable liquid suspension. Also disclosed is a stable liquid composition comprising a liquid carrier, an oil-soluble polymer, and a solid particulate wherein said liquid carrier is selected from the group consisting of liquid alkenes, terpenes, esters, and combinations of any two or more thereof and said liquid carrier, oil-soluble polymer, and solid particulate are each present in said composition in a stabilizing amount sufficient to effect the formation of a stable liquid suspension.Type: GrantFiled: November 20, 1996Date of Patent: November 10, 1998Assignee: Phillips Petroleum CompanyInventors: Bharat B. Patel, Marshall D. Bishop
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Patent number: 5821298Abstract: Incorporating highly ethoxylated molecules into the traditional aqueous wax emulsion results in significant improvement in formulation compatibility between the aqueous wax emulsion and the water borne urethane dispersions as evidenced by the increase in formulation clarity and stabilityType: GrantFiled: February 20, 1996Date of Patent: October 13, 1998Inventors: Michael A. Reynolds, Lawrence P. Novack
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Patent number: 5795932Abstract: A surface sizing composition is provided for nonwoven substrates comprising a hydrophobic waxy material and a surfactantless vinyl polymer or copolymer emulsion containing as the sole emulsifying agent an alkali soluble, acid containing copolymer.Type: GrantFiled: March 7, 1995Date of Patent: August 18, 1998Assignee: Sequa Chemicals, Inc.Inventors: Louis R. Dragner, Douglas W. Harper, Nolan H. Thompson
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Patent number: 5763014Abstract: A liquid applied waterproofing formulation system comprises separate formulation components A and B which are transportable to the application site in separate containers but combinable at the site to form a blend, preferably a water-in-oil blend, which solidifies into a continuous membrane having hydrostatic head resistance. Component A is an aqueous latex of a natural or synthetic rubber. Component B is an oil carrier in which is dispersed a vulcanizing agent operative to cure the rubber and a hygroscopic agent operative to chemically bind the water in component A. Methods for waterproofing, which employ the formulation system, are also disclosed.Type: GrantFiled: December 19, 1996Date of Patent: June 9, 1998Assignee: W. R. Grace & Co.-Conn.Inventor: Matthew T. Pickett
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Patent number: 5750269Abstract: A removable coating composition comprises oxidized polyethylene wax, paraffin wax, and acrylic copolymer. A process of protecting surfaces comprises applying the coating composition in an aqueous emulsion to a surface and drying. The resulting coated surface is protected such that when graffiti is applied to the coated surface, the graffiti and coating are easily removed with hot water or steam.Type: GrantFiled: December 28, 1995Date of Patent: May 12, 1998Assignee: Eastman Chemical CompanyInventor: Vernon Kee Park
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Patent number: 5744530Abstract: A thermoplastic granule containing a high proportion of a particulate carbonate filler in a thermoplastic binder, for blending with an end product thermoplastic in which the carbonate filler is to be dispersed. The granule comprises at least 85% by weight of a particulate carbonate which is coated with one or more fatty acids having a carbon chain length of from 12 to 20 carbon atoms. The balance of the granule by weight comprises a thermoplastic polymeric binder which is solid at ambient temperature and is compatible with the end product thermoplastic in which the carbonate filler is to be dispersed. The polymeric binder is an amorphous polyolefins and/or a highly branched polyethylene wax. The PSD of the carbonate is selected to maximize packing.Type: GrantFiled: April 25, 1996Date of Patent: April 28, 1998Assignee: ECC International Inc.Inventor: David A. Skelhorn
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Patent number: 5733961Abstract: Polychloroprene contact adhesive is made by mixing polychloroprene, tackifier, metallic oxide, antioxidants and organic solvent. The contact adhesive is sheared for reducing its ASTM D 1084 Saybolt viscosity by 10 percent or more. Shearing improves the sprayability of the polychloroprene contact adhesive. It makes it more uniform and reduces its viscosity.Type: GrantFiled: June 17, 1996Date of Patent: March 31, 1998Assignee: Premark RWP Holdings, INC.Inventors: Daniel C. Purvis II, John J. Ach, John P. Jones
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Patent number: 5716217Abstract: A water base ink composition for writing on neon boards which comprises:(a) water in amounts of not less than 30% by weight;(b) hollow resin particles dispersed in the water, in amounts of 0.5-50% by weight;(c) a resin which is film-forming at room temperatures in amounts of 0.5-30% by weight; and(d) an aqueous emulsion of at least one nonvolatile or only slightly volatile compound which is liquid at room temperatures and is selected from the group consisting of aliphatic carboxylic acid esters, higher hydrocarbons and higher alcohols in dry amounts of 0.5-25% by weight.Writings or marking formed with the ink composition on transparent panels such as of polymethyl methacrylate are intensely and vividly brightened when the side face receives light incident perpendicularly into the panel, as the panels are called "neon boards".Type: GrantFiled: May 25, 1995Date of Patent: February 10, 1998Assignee: Sakura Color Products Corp.Inventors: Kiyotaka Imagawa, Yasuji Okuda
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Patent number: 5591489Abstract: This invention provides a process for surface sizing paper or paperboard involving applying a surface sizing composition containing a mixture of starch and a surfactantless stable vinyl polymer microemulsion, followed by drying. The vinyl polymer microemulsion is prepared by emulsion polymerization of a styrene or styrene containing organic group with a C.sub.2 -C.sub.8 acrylic or methacrylic ester utilizing as the sole emulsifying agent a low molecular weight alkali soluble, acid containing copolymer.Type: GrantFiled: May 4, 1995Date of Patent: January 7, 1997Assignee: Sequa Chemicals, Inc.Inventors: Louis R. Dragner, John P. Farewell
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Patent number: 5498645Abstract: A modeling dough comprising a polar polymeric resin, water, a gellant, and a filler provides a dough resistant to flaking, cracking, and crumbling. In the disclosed invention, the polymeric resin is gelled, thereby providing a water-based resin system that is not sticky yet very ductile. After the dough is air-dried, the components are bound into a solid, durable product. The filler accounts for a large portion of the volume of the dough, so the overall volume is not greatly affected by water loss upon drying. The dough is water-based and easy to wash from skin, carpets, and other surfaces. Dyes and pigments can be easily incorporated into the formula. The dried product is sandable and paintable.Type: GrantFiled: October 11, 1994Date of Patent: March 12, 1996Assignee: Binney & Smith Inc.Inventors: Karen M. Mariano, Thomas Kauffman, Stacey A. Gregor
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Patent number: 5492960Abstract: A method of making polymeric particles of at least 1.0 micrometer which comprises forming at atmospheric conditions droplets of an ethylenically unsaturated monomer the monomer being liquid at standard conditions of 0.degree. C. and one atmosphere pressure, together with from about 0.01 to about 5 percent by weight, based on the weight of the monomer, of a nonreactive compound in an aqueous medium, the nonreactive compound having a solubility in water less than that of the ethylenically unsaturated monomer, the aqueous medium containing a surfactant or organic hydrophilic colloid, the monomer droplets being formed by using only sufficient energy to achieve a size of 1.0 micrometer or larger, and polymerizing the ethylenically unsaturated monomer.Type: GrantFiled: October 28, 1994Date of Patent: February 20, 1996Assignee: Eastman Kodak CompanyInventors: John L. Muehlbauer, Dennis E. Smith, Thomas H. Whitesides
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Patent number: 5470908Abstract: Described herein is a composition comprising at least 10 percent by weight of water and, based on the weight of components (a), (b), and (c); (a) 0 to about 95 percent by weight of a water-compatible polymer having at least two pendant carboxylate groups; (b) 1 to about 60 percent by weight of a polymeric polycarboxylate polymer different from (a) having (1) at least two pendant carboxylate groups and (2) at least one internal amide, thioamide, urea, thiourea, biuret, dithiobiuret, or urethane group; and (c) 2 to about 70 percent by weight of a polyfunctional crosslinking agent having an ionic or potentially ionic moiety counter ion capable of reacting with the carboxylate groups of (a) and (b). Component (b) may also contain fluoroalkyl groups. The composition of the invention provides a water-based coating which, when deposited on a surface to be coated and allowed to dry and form a crosslinked polymer, has a high degree of wear resistance, hardness, and impact resistance.Type: GrantFiled: October 28, 1993Date of Patent: November 28, 1995Assignee: The Dow Chemical CompanyInventors: Donald L. Schmidt, Robert F. Harris, Charles Coburn
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Patent number: 5468789Abstract: A method is provided for making curable silicon containing acrylate silicone hardcoat compositions which employ an anaerobic gelation inhibitor such as galvinoxyl. Devolatilizing of an aqueous/organic solvent mixture from the silicon containing acrylate hardcoat formulation is conducted in an inert atmosphere. Acrylate hardcoat compositions imparting improved weathering resistance to thermoplastic substrates also are provided.Type: GrantFiled: September 12, 1994Date of Patent: November 21, 1995Assignee: General Electric CompanyInventors: Larry N. Lewis, George F. Medford, Arnold Factor
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Patent number: 5442005Abstract: This invention provides a coating for zinc coated steel surfaces and other zinc containing alloys, including zinc/iron, zinc/nickel, zinc/cobalt, zinc/aluminum, and any other suitable metal surface. The coating product of this inventions contains the following ingredients: copolymers made from acrylic, vinylacrylic, and acrylstyrene monomers, has carboxylic radicals from acrylic and/or methacrylic acids, and has an Ia of 30 to 60 mg. of KOH. The water soluble copolymers and lubricatory additives, which include natural or synthetic waxes, graphite, and molybdenum sulfide, are in solid form dispersed in aqueous solution at a ratio of from 1 to 10%.Type: GrantFiled: January 26, 1993Date of Patent: August 15, 1995Assignee: Procoat S.A.Inventors: Juan F. Brugarolas, Federico S. Rodellas
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Patent number: 5438088Abstract: Hydrogenated castor oil stabilizes water-in-oil dispersions of water soluble vinyl addition polymers.Type: GrantFiled: March 3, 1994Date of Patent: August 1, 1995Assignee: Nalco Chemical CompanyInventors: Anthony G. Sommese, R. Nagarajan
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Patent number: 5418307Abstract: An acid-functional polymer is obtained by the hydrolysis or half-ester ring opening reaction of an anhydride-functional polymer obtained by at least partially hydrogenating an unsaturated polymer which was obtained by reacting under ene reaction conditions:(i) an unsaturated anhydride having the structure: ##STR1## wherein R.sub.1 and R.sub.2 are each independently hydrogen, alkyl of 1 to about 6 carbons, or alkoxy of 1 to about 6 carbons, or a halogen; and(ii) at least one polyolefin having at least two carbon-carbon double bonds in the polyolefin backbone and having an average of at least three carbon atoms in the polyolefin backbone between the carbon-carbon double bonds.Type: GrantFiled: January 3, 1994Date of Patent: May 23, 1995Assignee: The Sherwin-Williams CompanyInventors: Richard S. Valpey, III, Mohamad D. Shalati, Rodney M. Harris
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Patent number: 5418306Abstract: An acid-functional polymer is obtained by the hydrolysis or half-ester ring opening reaction of an anhydride-functional polymer obtained by reacting under ene reaction conditions:(i) an unsaturated anhydride having the structure: ##STR1## wherein R.sub.1 and R.sub.2 are each independently hydrogen, alkyl of 1 to about 6 carbons, or alkoxy of 1 to about 6 carbons, or a halogen; and(ii) at least one polyolefin having at least two carbon-carbon double bonds in the polyolefin backbone and having an average of at least three carbon atoms in the polyolefin backbone between the carbon-carbon double bonds.Type: GrantFiled: January 3, 1994Date of Patent: May 23, 1995Assignee: The Sherwin-Williams CompanyInventors: Mohamad D. Shalati, Rodney M. Harris, Richard S. Valpey, III
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Patent number: 5360862Abstract: A process is provided for the production of an emulsifiable polypropylene wax having a melt viscosity from 1000 to 5000 cP at 190.degree. C. This process entails reacting at a temperature below 190.degree. C. a thermally degraded polypropylene wax having a melt viscosity below 1000 cP (at 190.degree. C.) with maleic anhydride in the presence of a free radical source. Floor polish formulations containing this polypropylene wax are very clear but yet provide floor finishes that are very tough.Type: GrantFiled: January 21, 1994Date of Patent: November 1, 1994Assignee: Eastman Chemical CompanyInventors: Thomas D. Roberts, Thomas W. Smith, Charlene A. Galvin
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Patent number: 5281652Abstract: Emulsifiable linear polyethylene compositions which exhibit good hardness and color characteristics can be obtained by oxidizing a blend of about 90 to 60% by weight of either linear low density polyethylene or high density polyethylene and about 10 to 40% by weight paraffin wax to an acid number of 12 to 30 mg KOH/g. The water emulsions obtained from the emulsifiable polyethylene compositions are useful as textile lubricants and fruit coatings.Type: GrantFiled: December 24, 1990Date of Patent: January 25, 1994Assignee: Eastman Kodak CompanyInventor: Gregory A. Cook
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Patent number: 5260366Abstract: A thermoplastic elastomer composition superior in moldability and appearance, little in anisotropy of mechanical properties, especially, tensile strength and retaining low temperature impact strength, is obtained by previously melt-kneading an intermediate composition comprising (a) 100 parts by weight of a selectively hydrogenated block copolymer which has at least two mono-alkenyl or mono-alkenylidene aromatic hydrocarbon polymer blocks A having a number-average molecular weight of 25,000-35,000 and at least one partially or completely hydrogenated aliphatic conjugated diene hydrocarbon polymer block B having a number-average molecular weight of 100,000-150,000, (b) 50-150 parts by weight of an extender oil and (c) 0-50 parts by weight of polypropylene I, then adding, to the kneaded intermediate composition, (d) polypropylene II containing at least 35% by weight of a propylene-ethylene block copolymer having a melt flow rate of 10-30 g/10 min.Type: GrantFiled: August 5, 1991Date of Patent: November 9, 1993Assignee: Sumitomo Chemical Company, LimitedInventors: Tatsuyuki Mitsuno, Hideo Shinonaga, Masashi Yamamoto
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Patent number: 5231118Abstract: The invention relates to a pressure-activatible correcting tape, which has a conventional carrier and a lift-off layer for removing typed or printed type images, the lift-off layer containing a wax, a binder and optionally further additives. This correcting tape is characterized in that the lift-off layer contains approximately 5 to 35% by weight of butyl rubber, approximately 30 to 90% by weight of wax and approximately 0.1 to 5% by weight of a dispersant having a dispersing action in an aqueous medium for the aforementioned substances. The lift-off layer can be produced by means of an aqueous coating liquid, which is environmentally advantageous compared with organic dispersants. This correcting tape can be used without restriction and independently of the type of typewriter.Type: GrantFiled: February 4, 1992Date of Patent: July 27, 1993Assignee: Caribonum LimitedInventors: Ian Hogarth, Andrew Scott, Christine Abbott, Robert I. Wilkinson
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Patent number: 5130358Abstract: A cationic polymer composition suitable for use as a flocculating agent and as a retention aid in paper making consists of a mixture ofa) a hydrophilic cationic polymer,b) an anionic surfactant,optionally c) a water-immeriscible oil in which the polymer a) is insoluble,and, if c) is present,optionally d) a lipophilic non-ionic surfactant,optionally e) waterand optionally f) an oil-miscible polar solvent.The compositions may be prepared by water-in-oil emulsion polymerisation and are readily diluted with water.Type: GrantFiled: March 22, 1989Date of Patent: July 14, 1992Assignee: Sandoz Ltd.Inventor: Bernard Danner
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Patent number: 5126390Abstract: Disclosed are water-based transfer element coating formulations suitable for forming transfer elements for impact printing, thermal printing, typewriting, and the like, which comprise a wax-in-water emulsion, an oil, an aqueous polymer emulsion, a colorant, an optional water-soluble leveling agent, and an optional inert filler, said coating formulation containing substantially no volatile organic compounds. Also disclosed are processes for preparing transfer elements with these coating formulations and printing processes employing the transfer elements thus prepared.Type: GrantFiled: November 23, 1990Date of Patent: June 30, 1992Assignee: Xerox CorporationInventor: James M. Duff
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Patent number: 5112892Abstract: A polymer solution contains a sulphonated polyarylethersulphone in a solvent mixture containing at least three components, where the solvent mixture has a delta-H in the range from 3 to 8.5; a delta-P in the range from 4 to 8 and a delta-D in the range 7.2 to 9.5 and each component of the solvent mixture is a liquid or low melting solid which is a non-solvent or poor solvent for the sulphonated polyarylethersulphone, and at least one of the components satisfies at least one of the conditions:a) said component has a delta-D of less than 8 when the value of delta-P is not more than 3; andb) said component has a delta-H of greater than 3 when the value of delta-P is at least 8.5; andc) said component has a delta-H of less than 8 when it contains at least one hydroxylic group; andd) said component is free of hydroxylic groups and has a delta-P which is greater than 3 and less than 8.5.The solution can be used for the production of membranes suitable for use in reverse osmosis applications.Type: GrantFiled: September 6, 1990Date of Patent: May 12, 1992Assignee: Imperial Chemical Industries plcInventors: Peter T. Cardew, David R. Holmes, John W. Smith
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Patent number: 5091448Abstract: A new stable liquid suspension of water soluble polymer, and a method of preparation are provided. Such compositions comprise of at least an iso-parrafinic oil medium, one styrene/isoprene copolymer, a water soluble polymer and preferably some hydrophobic fumed silica mixed together in the appropriate quantities and conditions.Type: GrantFiled: April 24, 1990Date of Patent: February 25, 1992Assignee: Phillips Petroleum CompanyInventors: John E. Hostettler, Marshall D. Bishop
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Patent number: 5075369Abstract: Disclosed is a heat-sensitive recording material useful in the manufacture of thermal paper and thermal labels. The material comprises a cellulosic or other suitable substrate, a thermally imprintable color-producing layer, and a protective layer over the color-producing layer. It may also include a second protective layer and/or a pressure-sensitive adhesive layer, on the surface of the substrate opposite from the color-producing layer, and a releasable liner covering the adhesive layer. The color-producing layer includes a basic, acid-neutralizing agent for both reducing background discoloration during manufacturing and increasing image definition. The protective layer comprises a polymeric binder which is both ionically and covalently cross-linked to provide improved resistance to hydrophobic and hydrophillic solvents.Type: GrantFiled: April 12, 1990Date of Patent: December 24, 1991Assignee: Nashua CorporationInventor: Meftah U. Mahmud
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Patent number: 5049186Abstract: Water-based compositions of the water-based wax emulsion type for protecting coating films are provided by emulsifying and dispersing, as essential components, [A] a disperse phase component and [B] an emulsifier component in water. The disperse phase component [A] is formed of (a) a petroleum fraction wax having a melting point of 50.degree.-90.degree. C., (b) an oxygen-containing wax having an oxygen content of at least 3.0 wt. % and a melting point of 50.degree.-85.degree. C., (c) an ethylene/.alpha.-olefin copolymer having a number average molecular weight of 2,000-20,000, and (d) a higher fatty acid metal salt and/or a metal-modified hard wax. The compositions can form, without the need for a solvent, strong barrier coats which are resistant to rain, moisture, sunlight and air pollutants even under severe environmental conditions. After these barrier coats are used, they can be easily removed with warm water containing a small amount of a solvent or steam.Type: GrantFiled: March 16, 1990Date of Patent: September 17, 1991Assignee: Nippon Oil Co., Ltd.Inventor: Nobuaki Kawabata
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Patent number: 5045587Abstract: The present invention relates to a method of maintaining the flowability of a dispersion of fine particles of a water-soluble polymer mainly comprising acrylic acid and/or acrylamide in an aqueous salt solution for a long period of time.In order to attain the above-described object, the present invention is characterized by adding to a polymer dispersion 0.05 to 1% by weight, based on the dispersion, of a nonionic surfactant and 2 to 10% by weight, based on the dispersion, of an oleaginous liquid. The aqueous salt solution for dispersing the polymer particles is most preferably an aqueous solution of a salt wherein the counter ion is a monovalent cation, and the salt concentration of the aqueous solution is preferably at least 15% by weight.The acrylic water-soluble polymer dispersion is used for applications such as high-molecular flocculants, sizing agents, or paper-strength agents.Type: GrantFiled: December 12, 1989Date of Patent: September 3, 1991Assignee: Kyoritsu Yuki Co., Ltd.Inventor: Katsutoshi Tanaka
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Patent number: 4990556Abstract: This invention provides cured silicone rubber or gel particles exhibiting an average size of from 0.1 to 20,000 micrometers and containing from 0.5 to 70 weight percent, based on the weight of the particle, of entrapped mineral oil. When the particles are incorporated into a liquid or solid matrix material the oil is released from the particles into the matrix at a controlled rate and serves as a lubricating agent.Type: GrantFiled: April 17, 1990Date of Patent: February 5, 1991Assignee: Dow Corning Toray Silicone Ltd.Inventors: Koji Shimizu, Mitsuo Hamada
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Patent number: 4985482Abstract: An aqueous resin composition usable in sizing compositions for the treatment of mineral fibers is disclosed. This aqueous composition comprises a resin obtained by the condensation, in a basic medium, of formaldehyde, urea, and melamine, in the presence of a polyol characterized by a functionality of at least 3. This resin is stable for long periods of times and capable of dilution by a factor of at least 100%.Type: GrantFiled: July 27, 1989Date of Patent: January 15, 1991Assignee: Isover Saint-GobainInventors: Charles de Goys de Mezeyrac, Roger Fugier, Bernard Giquel, Serge Tetard
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Patent number: 4980394Abstract: The invention relates to foundry moulding compositions useful for producing moulds for the manufacture of metal castings wherein the moulds are capable of giving castings with good surface finish without the need for conventional separate blacking applications. A foundry moulding composition of the invention comprises refractory material such as sand, alkali phenol-formaldehyde resole resin solution, carbonifiable material such as styrenated phenol, and an effective amount of an organic ester for hardening the composition. In another embodiment, the invention is a binder composition comprising alkali phenol-formaldehyde resole resin solution and carbonifiable material capable of being hardened by reaction with organic ester. In another embodiment, the invention is a curing additive for a foundry binder comprising carbonifiable material and liquid ester such as gamma-butyrolactone, and the like.Type: GrantFiled: January 11, 1989Date of Patent: December 25, 1990Assignee: Borden (UK) LimitedInventors: Peter H. R. B. Lemon, Jeffrey D. Railton, Derek W. Baker, John Ireland
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Patent number: 4963432Abstract: A wiper for one step polishing and protecting of a hard surface such as wood and plastic surfaces, e.g. furniture, comprises a nonwoven substrate impregnated with a liquid polish composition comprising by weight of the composition: (a) from about 0.7 to about 7% of an organic polysiloxane having a viscosity of from about 50 to about 100 centistokes at 25.degree. C.; (b) from about 0.1 to about 3.5 of an organic polysiloxane having a viscosity of about 1000 to about 25,000 centistokes at 25.degree. C.; (c) from 0 to about 1.4% of an aminofunctional silicone fluid; (d) from about 0.1 to about 1% of a wax; (e) from about 1 to about 15% of a hydrocarbon solvent having an initial boiling point above about 98.degree. C. and an end boiling point below about 200.degree. C.; (f) from about 0.05 to about 2% of a nonionic emulsifier; and (g) the remainder to 100% water; wherein the ratio of (a) to (b) is from about 2 to 1 to about 5 to 1, the substrate has a basis weight of from about 30 to about 90 g/sq.yd.Type: GrantFiled: April 10, 1989Date of Patent: October 16, 1990Assignee: Sterling Drug Inc.Inventors: Cynthia L. Fuggini, Allan L. Streit
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Patent number: 4939180Abstract: A process for producing a composite membrance in which a sulphonated polymer is appled to the surface of a porous substrate, treating the polymer, in situ, on the substrate with cations of a polyvalent metal and converting the treated coating into a water insoluble layer on the support. The polyvalent metal may preferably by aluminum or chromium.Type: GrantFiled: July 25, 1989Date of Patent: July 3, 1990Assignee: Imperial Chemical Industries PLCInventor: Brian N. Hendy
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Patent number: 4892905Abstract: Petroleum resins having a softening point from 10.degree. C. to 80.degree. C. obtained from C.sub.5 olefins and diolefines and one or more monovinyl aromatic compounds which contain from 10 to 30 wt. % of the aromatic are useful as tackifiers for carboxylated styrene butadiene copolymer to produce pressure sensitive additives especially aqueous based adhesive when the resin is in the form of an emulsion which is also claimed.Type: GrantFiled: February 26, 1988Date of Patent: January 9, 1990Assignee: Exxon Research & Engineering CompanyInventors: Andre Lepert, Morris L. Evans, Lutz E. Jacob
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Patent number: 4866099Abstract: A sulphonated aromatic polymer containing repeating units (Ar-Y) (where Y is SO.sub.2 and/or CO), where at least half of groups Ar contain a group SO.sub.3 M and M is l/m of a polyvalent metal cation in at least 80% of such groups SO.sub.3 M, and where m is the valency of the ion. The polyvalent cation compound is formed by heating the corresponding sulphonic acid or monovalent cation compound with a salt of a polyvalent metal. The polymer is useful as a membrane and the polyvalent metal salt addition and/or the heat treatment may be applied to polymer in membrane form.Type: GrantFiled: March 10, 1987Date of Patent: September 12, 1989Assignee: Imperial Chemical Industries PLCInventor: Brian Hendy
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Patent number: 4855164Abstract: A coating composition contains:(a) a waterborne film-forming polymer; and(b) a stable, liquid nonaqueous polymer microparticle dispersion characterized in that the nonaqueous dispersion, when independently spray applied, is capable of forming discrete, particle agglomerates upon volatilization of its nonaqueous medium, the components (a) and (b) being present in amounts effective to provide that the coating composition is a stable, multiphase composition.Type: GrantFiled: February 12, 1988Date of Patent: August 8, 1989Assignee: PPG Industries, Inc.Inventors: Mary J. Burkholder, Barbara G. Piccirilli, Carl C. Anderson, Rodger G. Temple
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Patent number: 4812493Abstract: A two component water-based composition which cures in two stages, an initial rapid curing stage and a slower curing stage, comprising as the first component, a mixture of a polyaldehyde chosen from the group consisting of glyoxal glutaraldehyde and derivatives of glyoxal and gluteraldehyde, and a water dispersible component chosen from the group consisting of poxy resin emulsions which can be emulsified in water, synthetic latexes stable at about pH 7 or less, low molecular weight resin emulsions, epoxy ester emulsions, water emulsified alkyds, and cationic, anionic and non-ionic asphalt emulsions and, as the second component, the non-gel reaction product of N,N'-bis(methoxymethyl) uron and a polyamine chosen from a group consisting of primary and secondary amines and/or a monoamine.Type: GrantFiled: April 10, 1987Date of Patent: March 14, 1989Assignee: Adhesive Coatings Co.Inventor: Lowell O. Cummings
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Patent number: 4783497Abstract: Coating compositions suitable for use as coatings or inks for metallic foils, such as aluminum foil, as well as for use on other materials, such as papers and plastics resin films, are disclosed. These compositions comprise a water dispersable polyester resin, an alkylated amino resin and water. They may optionally include a pigment and other optional modifying ingredients. These compositions, being water-based, provide improved environmental compatibility and may be dried under relatively low temperatures without objectional ammonia residue odor.Type: GrantFiled: December 16, 1985Date of Patent: November 8, 1988Assignee: Reynolds Metals CompanyInventor: Gerald L. Thompson
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Aqueous emulsion coating for individual fibers of a cellulosic sheet providing improved wet strength
Patent number: 4714727Abstract: A basic aqueous emulsion composition that can be used as a treatment for cellulosic sheets or articles made of cellulosic fibers to provide improved water resistance by forming a discrete coating on the individual fibers that make up the sheet while not substantially limiting the compatibility of the treated sheet with aqueous glues, dyes or inks comprising a major proportion of water, a mixture of wax and rosin, an emulsion stabilizer and a chelating agent.Type: GrantFiled: July 25, 1984Date of Patent: December 22, 1987Assignee: H. B. Fuller CompanyInventor: Robert M. Hume, III -
Patent number: 4714725Abstract: Solutions of sulphonated polyaryletherketones in a solvent mixture of at least three liquids or low melting solids which are non-solvents or poor solvents for the polymer, can be used to produce asymmetric semi-permeable membranes. The polymer may be a polymer of(Ph.sup.1 --O--Ph.sup.2 --O--Ph.sup.1 --CO)and optionally(Ph.sup.1 --O--Ph.sup.1 --CO)and(Ph.sup.1 --O--Ph.sup.1 --O--Ph.sup.1 --CO)wherein Ph.sup.1 and Ph.sup.2 are respectively unsulphonated and sulphonated phenylene residues. The components of the solvent mixture have specified solubility parameters. A suitable solvent mixture is one formed from water, 1,4-dioxane and acetonitrile.Type: GrantFiled: April 6, 1987Date of Patent: December 22, 1987Assignee: Imperial Chemical Industries PLCInventors: Brian N. Hendy, John W. Smith
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Patent number: 4696962Abstract: A cationic polymer composition suitable for use as a flocculating agent and as a retention aid and dewatering agent in paper making consists of a mixture of(a) a hydrophilic cationic polymer of(a.sub.1) acrylamide and/or methacrylamide and(a.sub.2) dialkylamino-C.sub.2-3 alkylene-(meth)acrylamidethe molar quantity of cationic monomer units (a.sub.2) being from 0.2 to 9 mol % of the total(b) an anionic surfactant(c) a water-immiscible oil in which the polymer (a) is insoluble, andoptionally (d) a lipophilic non-ionic surfactant,optionally (e) waterand optionally (f) an oil-miscible polar solvent.The compositions may be prepared by water-in-oil emulsion copolymerization and are readily diluted with water.Type: GrantFiled: July 24, 1984Date of Patent: September 29, 1987Assignee: Sandoz Ltd.Inventors: Bernard Danner, James R. Ruynon
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Patent number: 4670500Abstract: A surface coating composition comprising an amino-functional silicone polymer, a metal chelated acrylic polymer a hydrocarbon solvent and water. The metal-chelated acrylic polymer preferably comprises zinc, and the composition may further comprise abrasive materials, surfactants, thickeners and stabilizers. The surface coating composition is particularly adapted for providing a glossy and durable finish on a surface.Type: GrantFiled: December 20, 1985Date of Patent: June 2, 1987Assignee: Pennzoil CompanyInventor: D. V. Satyanarayana Gupta