Hydroxyalkyl Patents (Class 524/43)
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Patent number: 7645725Abstract: Fluids useful as subterranean treatment fluids, and more particularly, polymeric fluid loss additives, subterranean treatment fluids with improved fluid loss control, and their associated methods of use, are provided. In one embodiment, the methods comprise: providing a treatment fluid that comprises a base fluid, and a polymeric fluid loss control additive that comprises at least a first plurality of polymer molecules having a first average molecular weight, and a second plurality of polymer molecules having a second average molecular weight, wherein the first average molecular weight is different from the second average molecular weight; and introducing the treatment fluid into a subterranean formation.Type: GrantFiled: April 14, 2006Date of Patent: January 12, 2010Assignee: Halliburton Energy Services, Inc.Inventors: Jimmie D. Weaver, Billy F. Slabaugh, Harold G. Walters
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Patent number: 7517920Abstract: A denture fixative composition containing lower alkyl vinyl ether-maleic anhydride copolymers, water-insoluble and water-swelling polymers, and at least one additional adhesive material which can be used as a denture fixative paste, liquid, powder, aerosol, dissolving tablet, liner or adhesive-like strip.Type: GrantFiled: December 21, 2006Date of Patent: April 14, 2009Assignee: Sunstar Inc.Inventor: Akihiro Sudo
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Patent number: 7476697Abstract: A film forming composition for coating teeth which is a mixture of about 0.5% to about 30% by weight of a film forming polymer; about 10% to about 99.5% by weight of solvent; about 0.05% to about 40% by weight of a rheology modifier; about 0.01% to about 5% by weight of a dispersant or plasticizer, if necessary; and optionally up to about 30% by weight of an opacifier or colorant.Type: GrantFiled: September 10, 2001Date of Patent: January 13, 2009Inventors: Thomas R. Patacca, Gregory G. Patacca, Dean M. Frate
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Patent number: 7425589Abstract: The invention relates to a method for modifying cellulose ethers. The inventive method is characterised in that a cellulose ether having a humidity content of between 5 and 90% is intensively mixed with between 0.1 and 5 wt. %—in relation to the dry cellulose ether—of an additive or an additive mixture in the form of an aqueous or organic suspension or solution, at temperatures of between 20 and 100° C., and the mixture obtained is then dried.Type: GrantFiled: August 21, 2001Date of Patent: September 16, 2008Inventors: Friedrich Girg, Roland Friedel, Alf Hammes
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Patent number: 7371279Abstract: A composition comprising cellulose ether, a superplasticizer and defoamer suitable for use as an additive in extruding inorganic compositions is disclosed. The inventive composition functions as a water retention agent, plasticizer and lubricant in the extrusion of inorganic compositions. The use of the inventive composition in the extrusion of building materials leads to improved processing properties, to a higher surface quality and product properties of the extruded article.Type: GrantFiled: June 27, 2006Date of Patent: May 13, 2008Assignee: Dow Wolff Cellulosics GmbHInventors: Roland Bayer, Hartwig Schlesiger, Daniel Auriel
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Patent number: 7276546Abstract: The invention relates to methods of making carbohydrate and polyol esters suitable for use as plasticizers for polymer compositions. The invention also relates to plasticized polymer compositions comprising such carbohydrate and polyol esters. The invention also relates to articles prepared from such plasticized polymer compositions. The invention further relates to methods of using these compositions.Type: GrantFiled: May 17, 2005Date of Patent: October 2, 2007Assignee: Eastman Chemical CompanyInventors: Charles M. Buchanan, Norma L. Buchanan, Kevin J. Edgar, Juanelle L. Lambert
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Patent number: 7199084Abstract: Suspensions are provided of water-soluble materials in non-aqueous carrier fluids using suspension agents that include thixotropic agents and, optionally, organophilic clays. Methods of forming such suspensions are provided. Methods are also provided for using such suspensions to prepare aqueous solutions, in particular thickened aqueous solutions, in particular for use in oilfield treatments.Type: GrantFiled: March 21, 2002Date of Patent: April 3, 2007Assignee: Schlumberger Technology CorporationInventors: Michael Parris, Geoff Robinson
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Patent number: 7078448Abstract: The invention relates to a polymer dispersion which contains water, at least one polymer that has been produced by emulsion polymerisation, at least one protective colloid, at least one water-soluble acidic metallic salt and at least one cross-linking resin that is based on phenol-formaldehyde condensation products, hydroxymethyl-substituted imidazolidinones, such as 1,3-dimethylol-4,5-dihydroxy-imidazolidinone (4,5-dihydroxy-N,N?-dimethylolethylene urea), hydroxymethyl-substituted pyrimidinones, or hydroxymethyl-substituted triazinones or their auto-condensation products, or mixed condensates from two or more of the aforementioned compounds, or a mixture of two or more of the aforementioned compounds.Type: GrantFiled: December 21, 2000Date of Patent: July 18, 2006Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Roberto Pavez Aranguiz, Christoph Lohr, Hugo A. Garcia Arcos, Gerard Jakubowski, Klaus Friedrich
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Patent number: 7066996Abstract: A mixture composition of a cellulose ether made from raw cotton linters and at least one additive is used in a ready mixed joint compound composition wherein the amount of the cellulose ether in the joint compound composition is significantly reduced. When this joint compound composition is mixed with water and applied to a substrate, the water retention, sag resistance, and workability of the wet joint compound are comparable or improved as compared to when using conventional similar cellulose ethers.Type: GrantFiled: April 25, 2005Date of Patent: June 27, 2006Assignee: Hercules IncorporatedInventor: Thomas J. Podlas
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Patent number: 7037956Abstract: A water-soluble resin composition comprising a water-soluble resin and a colorant, which copolymer has a weight average molecular weight of at least 8,000 and is prepared by polymerizing an ethylenically unsaturated carboxylic acid monomer and a monomer copolymerizable therewith in the presence of an alcoholic hydroxyl group-containing water-soluble high polymer or a copolymerizable surface active agent to give a copolymer having an acid value in the range of 5 to 120 and then neutralizing the thus-obtained copolymer with a basic, exhibits a reduced viscosity change when it is stored for a long period, and is useful as an aqueous ink capable of giving an image having good dot reproducibility and good abrasion resistance.Type: GrantFiled: October 19, 2001Date of Patent: May 2, 2006Assignee: Zeon CorporationInventors: Xiang Liu, Tomomi Onitake, Toshihiro Inoue
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Patent number: 6992123Abstract: A polishing pad of the present invention contains a water-insoluble matrix material comprising a crosslinked polymer such as a crosslinked 1,2-polybutadiene and water-soluble particles dispersed in the material, such as saccharides. The solubility of the water-soluble particles in water is 0.1 to 10 wt % at 25° C., and the amount of water-soluble particles eluted from the pad when the pad is immersed in water is 0.05 to 50 wt % at 25° C. Further, in the polishing pad of the present invention, the solubility of the water-soluble particles in water is 0.1 to 10 wt % at 25° C. at a pH of 3 to 11, and solubility thereof in water at 25° C. at a pH of 3 to 11 is within ±50% of solubility thereof in water at 25° C. at a pH of 7. In addition, the water-soluble particles contain an amino group, an epoxy group, an isocyanurate group, and the like. This polishing pad has good slurry retainability even if using slurries different in pH and also has excellent polishing properties such as a polishing rate and planarity.Type: GrantFiled: November 5, 2003Date of Patent: January 31, 2006Assignee: JSR CorporationInventors: Hiroshi Shiho, Hiromi Aoi, Kou Hasegawa, Nobuo Kawahashi
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Patent number: 6977275Abstract: The invention relates to methods of making carbohydrate and polyol esters suitable for use as plasticizers for polymer compositions. The invention also relates to plasticized polymer compositions comprising such carbohydrate and polyol esters. The invention also relates to articles prepared from such plasticized polymer compositions. The invention further relates to methods of using these compositions.Type: GrantFiled: January 10, 2003Date of Patent: December 20, 2005Assignee: Eastman Chemical CompanyInventors: Charles M. Buchanan, Norma L. Buchanan, Kevin J. Edgar, Juanelle L. Lambert
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Patent number: 6951895Abstract: Disclosed is an absorbent composition comprising each of an acidic and a basic material, wherein the absorbent composition exhibits desirable absorbent properties. Specifically, the present invention relates to an absorbent composition comprising either an acidic water-swellable, water-insoluble polymer having a pKa between about 2 to about 12 or a basic water-swellable, water-insoluble polymer having a pKb between about 2 to about 12 and either a basic or an acidic second material. The absorbent composition has the ability to slowly absorb a large quantity of liquid, particularly while under an external pressure. The absorbent composition is useful in disposable absorbent products, such as those disposable absorbent products that are used to absorb bodily liquids.Type: GrantFiled: December 2, 1996Date of Patent: October 4, 2005Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Jian Qin, Palani Raj Ramaswami Wallajapet
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Patent number: 6896725Abstract: The invention concerns the use of a water-soluble or water-dispersible polymer having a molecular weight of at least 800, containing at least 5 aldehyde groups per molecule and at least 1 carboxyl group per molecule, the ratio of aldehyde groups to carboxyl groups being higher than 0.75:1, as a wet strength additive. The invention also discloses novel cationic derivatives thereof.Type: GrantFiled: April 25, 2003Date of Patent: May 24, 2005Assignee: SCA Hygiene Products Zeist B.V.Inventors: Jeffrey Wilson Thornton, Dorine Lisa Van Brussel-Verraest, Arie Besemer, Sussan Sandberg
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Patent number: 6828356Abstract: A method of preparing a polymeric demulcent-containing ophthalmic composition. The method includes immersing a polymeric demulcent in water or in an aqueous solution containing one or more ingredients, agitating the water or solution at 25 to 45° C. until the polymeric demulcent is dissolved to form a polymeric demulcent-containing solution, and optionally adding one or more other ingredients to the polymeric demulcent-containing solution.Type: GrantFiled: July 29, 2002Date of Patent: December 7, 2004Assignees: AST Products, Inc., Ophthalmic Research Associates, Inc.Inventors: Shih-Horng Su, Min-Shyan Sheu
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Publication number: 20040225035Abstract: The present invention encompasses cellulose ether blends comprisingType: ApplicationFiled: January 30, 2004Publication date: November 11, 2004Inventors: Hartwig Schlesiger, Erik-Andreas Klohr, Wolfgang Dannhorn, Hans-Jurgen Juhl, Arne-Henning Kull, Gunter Weber, Peter Wolbers
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Patent number: 6806364Abstract: An aqueous ophthalmic solution containing 0.2 to 2.5 percent by weight a polymeric demulcent, 0.045 to 0.065 percent by weight a calcium salt, and 0.14 to 1.4 percent by weight a phosphate salt. The solution has a viscosity of 20 to 150 centipoise and is buffered to a pH 5.5 to 8.5.Type: GrantFiled: July 29, 2002Date of Patent: October 19, 2004Assignees: AST Products, Inc., Ophthalmic Research Associates, Inc.Inventors: Shih-Horng Su, George W. Ousler, III
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Patent number: 6800593Abstract: Disclosed is a hydrophilic, water soluble polymer concentrate for addition to aqueous liquids to enhance the properties thereof, particularly to increase the viscosity or decrease the fluid loss of well drilling and servicing fluids, the concentrate comprising a hydrophobic, water insoluble liquid, an organophilic clay suspension agent, the water soluble polymer, and a stabilizing agent comprising one or more acids in an amount from about 0.001% to about 1.5%, one or more anionic surfactants in an amount from about 0.001% to about 1.0%, one or more nonionic surfactants in an amount from 0.001% to about 0.625% and, from about 0% to about 0.75% of one or more water soluble organic liquids, wherein the total concentration of the stabilizing agent is from about 0.1% to about 2.5%, these percentages being based on the weight of the concentrate.Type: GrantFiled: June 19, 2002Date of Patent: October 5, 2004Assignee: Texas United Chemical Company, LLC.Inventors: James W. Dobson, Jr., Shauna Leigh Hayden, Carolina Trejo Rangel
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Patent number: 6790883Abstract: An object of the invention is to provide a polishing pad having the excellent slurry retaining properties and the large removal rate and a composition for a polishing pad which can form such the polishing pad. A composition for polishing pad of the invention is comprising a water-insoluble matrix material containing a crosslinked polymer and a water-soluble particle dispersed in the water-insoluble matrix material. The elongation remaining after breaking is 100% or less when a test piece comprising the water-insoluble matrix material is broken at 80° C. according to JIS K 6251. A polishing pad of the invention is that at least a part of the polishing pad comprises the composition for polishing pad.Type: GrantFiled: May 31, 2001Date of Patent: September 14, 2004Assignee: JSR CorporationInventors: Toshihiro Ogawa, Kou Hasegawa, Nobuo Kawahashi
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Patent number: 6777454Abstract: This invention relates to a process of preparing vesiculated granules of crosslinked carboxylated polyester resin utilising a particular class of non-alkylphenolethoxylate surfactant.Type: GrantFiled: June 28, 2002Date of Patent: August 17, 2004Assignee: Orica Australia Pty Ltd.Inventors: Philip J. A. Ritchie, Algirdas K. Serelis
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Patent number: 6759473Abstract: By coating a dip-formed article with a coating agent comprising a polymer latex dispersion-stabilized with a water-soluble high-molecular-weight compound containing an alcoholic hydroxyl group, a coated article having excellent donning and putting off properties and anti-blocking property, and exhibiting greatly reduced fine particles-releasability is obtained.Type: GrantFiled: May 20, 2002Date of Patent: July 6, 2004Assignee: Zeon CorporationInventors: Misao Nakamura, Toshihiro Inoue
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Publication number: 20040092625Abstract: A gypsum-based composite structure is prepared from a slurry comprising a mixture of calcium sulfate hemihydrate, a cellulose ether additive other than CMC and an amount of water that is sufficient to form a slurry. The calcium sulfate hemihydrate is hydrated by the water forming a wallboard core reinforced by the cellulose ether additive. The concentration, viscosity grade and degree of substitution of the cellulose ether are selected to give the composite improved nail pull resistance and greater flexural strength.Type: ApplicationFiled: May 27, 2003Publication date: May 13, 2004Applicant: Innovative Construction and Building MaterialsInventors: Jacob Freas Pollock, Christopher D. Tagge, Lennard Torres, David S. Soane
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Publication number: 20040092624Abstract: A reinforced wallboard core is prepared from a slurry comprising a mixture of &bgr;-calcium sulfate hemihydrate, a cellulose ether additive other than CMC and an amount of water that is sufficient to form a slurry and resulting in a wallboard density of less than 0.8 g/cc. The &bgr;-calcium sulfate hemihydrate is hydrated by the water forming a wallboard core reinforced by the cellulose ether additive. The cellulose ether, having a molecular weight of at least about 20,000 and a viscosity grade of at least about 100 cps, is selected to give the reinforced wallboard core improved nail pull resistance and greater flexural strength than unreinforced wallboard of the same density. The reinforced wallboard core may be used for reduced-paper wallboard and/or for lightweight wallboard, for example.Type: ApplicationFiled: January 23, 2003Publication date: May 13, 2004Applicant: Innovative Construction and Building MaterialsInventors: Christopher D. Tagge, Jacob Freas Pollock, Lennard Torres, David S. Soane
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Patent number: 6673854Abstract: The present invention is directed to a vinyl acetate-ethylene polymer dispersion containing a vinyl acetate-ethylene polymer, a phosphate-functional surfactant, and a protective colloid. The invention is also directed to an aqueous coating composition having at least 65 percent by volume of pigment, on a dry solids volume basis and an amount effective to produce good scrub resistance of up to 25 percent by weight of the vinyl acetate-ethylene binder.Type: GrantFiled: October 5, 2001Date of Patent: January 6, 2004Assignee: National Starch and Chemical Investment Holding CorporationInventors: Dorian Pierre, Stephen John Baines, Keith Charles Allen
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Patent number: 6667354Abstract: Stable and environmentally friendly suspensions of solid particulates are provided through the addition of such solid particulates to a suspension medium which is comprised of a liquid carrier, a liquid carrier soluble resin, an organophyllic clay, and an activator wherein said liquid carrier is a carboxylic acid ester, preferably 2-ethylhexyl oleate, said liquid carrier soluble resin is selected from the group consisting of styrene-isoprene copolymers, styrene ethylene-propylene block copolymers, styrene isobutylene copolymers, styrene butadiene copolymers, polybutylene, polystyrene, polyethylene-propylene copolymers, methyl methacrylate and mixtures thereof, said organophyllic clay is one of kaolinite, halloysite, vermiculite, chlorite, attapullgite, smectite, montmorillonite, bentonite, hectorite, and mixtures thereof and said activator is an alcohol of the formula ROH wherein R is an alkyl group of 1 to 10 carbon atoms.Type: GrantFiled: July 18, 2000Date of Patent: December 23, 2003Assignee: Phillips Petroleum CompanyInventors: Kelly B. Fox, Alvin Evans, Jr.
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Patent number: 6656983Abstract: The invention provides mixed aromatic vinyl-1,3-diene polymers stabilized by a protective colloid and present in the form of aqueous polymer dispersions or polymer powders redispersible in water as adhesives for porous substrates. The polymer dispersions and the polymer powders are obtained by emulsion polymerization of a mixture containing: a) 20 to 80 percent by weight of one or more vinylaromatics; b) 19.9 to 79.9 percent by weight of one or more 1,3-dienes; c) 0.1 to 15 percent by weight of one or more comonomers from the group consisting of N-methylolacrylamide, N-methylolmethacrylamide and the N-(alkoxymethyl)-acrylamides and N-(alkoxymethyl)-methacrylamides with a C1 to C6-alkyl radical. The sum of the above percentages adds up to 100% by weight. Emulsion polymerization is carried out in the presence of one or more protective colloids and without emulsifiers, optionally followed by drying of the resulting aqueous polymer dispersion.Type: GrantFiled: August 1, 2001Date of Patent: December 2, 2003Assignee: Wacker-Chemie GmbHInventors: Theo Mayer, Thomas Kohler, Reinhard Harzschel, Hans-Peter Weitzel, Bernd Schilling
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Publication number: 20030199617Abstract: The present invention relates to use of an alkylhydroxyalkyl cellulose, which has alkyl groups having 1-3 carbon atoms and hydroxyalkyl groups having 2-3 carbon atoms, is free from hydrophobically modifying alkyl groups having at least 4 carbon atoms and has a turbidity point of 50-95° C. The amount of carboxymethyl cellulose constitutes up to 1200 percent by weight of the amount of alkylhydroxyalkyl cellulose. An aqueous coating composition containing a combination of alkylhydroxyethyl cellulose and carboxymethyl cellulose is also described.Type: ApplicationFiled: February 5, 2003Publication date: October 23, 2003Inventors: Kerstin Larsson, Erland Hermansson
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Patent number: 6515049Abstract: The present invention relates to water-soluble ionic cellulose ethers from the group of the hydroxyalkylcelluloses which are substituted by on average from 0.001 to 1.0 alkyl group per anhydroglucose unit and which carry from 0.01 to 0.1 sulfoalkyl group per anhydroglucose unit, to processes for preparing them and to the use of water-soluble ionic cellulose ethers from the group of the hydroxyalkylcelluloses which are substituted by on average from 0.001 to 1.0 alkyl group per anhydroglucose unit and which carry from 0.01 to 0.4 sulfoalkyl group per anhydroglucose unit as protective colloids in polymerizations.Type: GrantFiled: October 26, 1999Date of Patent: February 4, 2003Assignee: Clariant GmbHInventors: Reinhard Doenges, Horst Wurm
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Patent number: 6506824Abstract: Biodegradable thermoplastic compositions comprising a starch component, a cellulose ester or ether, a plasticizer for the starchy phase and of the cellulose and derivatives, and a compatibilizer agent selected from polymers compatible with the cellulose and or starchy component, grafted with aliphatic or polyhydroxilated chains; copolymers obtained from hydroxy acids and/or diamines with 2-24C and aliphatic or aromatic diisocyanates; copolymers obtained from aliphatic polyesters, polyureas and polyalkylene glycols and aliphatic or aromatic diisocyanates; copolymers obtained from polymers compatible with cellulose ester or ethers and/or the starchy component by grafting starch soluble polyols; polymer capable of complexing starch; starch compatible polyols.Type: GrantFiled: October 17, 1997Date of Patent: January 14, 2003Assignee: Novamont S.p.A.Inventors: Catia Bastioli, Vittorio Bellotti, Roberto Lombi, Gabriele Perego
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Patent number: 6489406Abstract: The invention relates unsaturated polyester resins for the manufacture of subzero flexible, weather-resistant products. The liquid unsaturated polyester resin comprises a linear unsaturated polyester obtained by reacting 5-30 mol % of one or more ethylenically unsaturated dicarboxylic acids (A), 20-45 mol % of one or more other aliphatic or aromatic acids (B) and 40-60 mol % of two or more polyhydric alcohols and 30-60 wt % of one or more reactive monomers. The linear unsaturated polyesters have a cone and plate viscosity (I.C.I.) of 2 ps/125° C.-20 ps/125° C. and a molecular weight Mw of 20,000-100,000. The invention also relates to a process for the manufacture of such unsaturated polyester resins and to the use of them in applications wherein good adhesion to supporting material and flexibility at ambient and especially at low temperatures are needed.Type: GrantFiled: March 29, 2001Date of Patent: December 3, 2002Assignee: Ashland Inc.Inventors: Paul Mahbub, Karri Airola, Eija Valtonen
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Patent number: 6485875Abstract: A toner is constituted by at least a binder resin, a colorant and a wax. The binder resin has been formed from monomers including a vinyl monomer and polyester-forming monomers containing at least a polybasic carboxylic acid having three or more carboxyl groups or its anhydride, and comprises at least a hybrid resin comprising a vinyl polymer unit and a polyester unit.Type: GrantFiled: October 26, 2000Date of Patent: November 26, 2002Assignee: Canon Kabushiki KaishaInventors: Yuki Karaki, Hiroshi Yusa, Takashige Kasuya, Yoshihiro Ogawa
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Patent number: 6482876Abstract: The invention relates to an agglomerate containing at least one of the following water-soluble or water-dispersible materials as a bonding base polymer: carboxylized and/or alkoxylized starch, cellulose ether and fully synthetic vinyl polymers and/or polyacrylates. The agglomerate is characterized in that it contains a blasting agent which produces a high swelling pressure, but, advantageously, does not gel. The agglomerate can have a regular geometric form or not. Its weight should be between 0.5 and 500 g. The agglomerate is used in particular in the production of lump-free paste.Type: GrantFiled: March 15, 2000Date of Patent: November 19, 2002Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Sandra Witt-Nuesslein, Werner Haller, Bernhard Schoettmer, Monika Boecker, Wolfgang Seiter, Ingo Hardacker, Heinz-Peter Hoffmann
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Patent number: 6368356Abstract: The invention provides a means of boosting the mechanical performance of shaped shaped medical devices comprising polymer hydrogels, such as stents, so that they may be more easily inserted into or removed from the body. In one aspect, the invention provides shaped medical devices having increased mechanical strength and comprising both ionic and covalent crosslinks. In another aspect, the invention provides a shaped medical device having a heterogeneous polymer composition and a variable dissolution or degradation rate along its length. The shaped medical devices according to the present invention retain their shape and stiffness during insertion into the body and can swell and soften inside the body to enhance patient comfort.Type: GrantFiled: February 25, 2000Date of Patent: April 9, 2002Assignee: SciMed Life Systems, Inc.Inventors: Sheng Ping Zhong, Arthur R. Madenjian, Douglas E. Godshall, John M. Ronan, Samuel A. Thompson
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Patent number: 6362238Abstract: The present invention relates to associative cellulose ethers with improved thickening effects, especially in paint. The improvement depends on the presence of a hydrophobic modifying group of the general formula where R is an aliphatic group of 12-22 carbon atoms and n is a number from 3 to 7. The DS of the hydrophobic group is 0.003 to 0.012.Type: GrantFiled: March 15, 2001Date of Patent: March 26, 2002Assignee: Akzo Nobel N.V.Inventor: Leif Karlson
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Patent number: 6359040Abstract: Aqueous compositions having advantageous Theological properties, preferably including any of enhanced yield stress, enhanced viscosity, and/or enhanced water retention, are disclosed. Included are low-viscosity compositions having high yield stress. The present invention also relates to processes for preparing and using the compositions. Compositions of the present invention comprise aqueous compositions of a polymer having a net ionic charge, and a viscosity promoter having an opposite net ionic charge. Compositions may also comprise a moderating agent to prevent precipitation and/or gelation.Type: GrantFiled: May 11, 1999Date of Patent: March 19, 2002Assignee: Hercules IncorporatedInventor: Charles L. Burdick
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Patent number: 6288147Abstract: A dispersion adhesive includes a co- or terpolymer having vinyl acrylate or vinyl acetate units or a copolymer dispersion of an acrylic acid ester and styrene and a high content of flameproofing agent based on compounds of aluminum and/or boron. Additives such as processing and thickening agents, suspending agents and wetting agents are added to the dispersion adhesives, and the dispersion adhesives furthermore can include preservatives, foam suppressants, dispersing agents, film formation agents and a drying retardant. The dispersion adhesives are particularly suitable for gluing rigid polystyrene foams in the form of films or sheets, but are likewise used for gluing gypsum plasterboards, wood and cork to a suitable substrate, and for gluing tiles and cement sheets.Type: GrantFiled: September 15, 1997Date of Patent: September 11, 2001Assignee: Depron B.V.Inventors: Hub A. G. Vonken, Jack J. Bogers
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Patent number: 6284819Abstract: The present invention provides a recording medium comprising a substrate having a glossy coating thereon, wherein the glossy coating comprises a binder and first and second groups of particles, wherein: (a) the first group comprises metal oxide particles, wherein the metal oxide particles are aggregates of smaller, primary particles, (b) the mean diameter of the primary particles is less than about 100 nm, (c) the mean diameter of the aggregates is from about 100 nm to about 500 nm, (d) the mean diameter of the particles in the second group is less than about 50% of the mean diameter of the aggregates in the first group, and (e) the ratio of particles in the first group to particles in the second group is from about 0.1:1 to about 10:1 by weight. The glossy coating of the inventive recording medium has an excellent rate of liquid absorption, a relatively high liquid absorption capacity, excellent adhesiveness, and a non-brittle, crack-resistant, glossy surface.Type: GrantFiled: July 1, 1999Date of Patent: September 4, 2001Assignee: Cabot CorporationInventors: Michael S. Darsillo, David J. Fluck, Rudiger Laufhutte
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Patent number: 6228920Abstract: The invention relates to blends of a polyethylene oxide (PEO) resin and a latex emulsion. The blends are formed by mixing or coating a PEO powder resin with a latex emulsion and melt blending the powder. The blends have improved processibility and toughness which are beneficial in the manufacture of PEO-based films and fibers. The films composed of the PEO/latex blend have improved toughness, breathability, and tear resistance and are useful for the manufacture of disposable, flushable medical and personal care products, such as diapers, tampons, feminine napkins, and bladder control pads.Type: GrantFiled: July 10, 1998Date of Patent: May 8, 2001Assignee: Kimberly-Clark Woldwide, Inc.Inventors: Vasily Topolkaraev, James H. Wang
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Patent number: 6166119Abstract: A cement pumpability-enhancing additive which confers good pumpability on cementitious compositions such as concrete consists essentially of(a) polyethylene glycol;(b) diethylene glycol monobutyl ether and/or a derivative thereof;(c) polysaccharide; and(d) a thickening polymer selected from the group consisting of polyacrylic acid derivatives, polyacrylic amide derivatives, cellulose ethers, polyphenyl ethers and polyalkylene glycol fatty acid esters;the weight solids proportions of (a), (b), (c), and (d) in the additive being respectively 5-55%, 10-80%, 1-20% and 1-20%. The additive is preferably used with a cement dispersing agent.Type: GrantFiled: April 14, 1999Date of Patent: December 26, 2000Assignee: MBT Holding AGInventors: Shigemi Matsuo, Hidenori Nagamine, Akira Ota
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Patent number: 6143812Abstract: Asphalt release coatings are prepared by applying an aqueous emulsion containing an organopolysiloxane component, an effective amount of one or more emulsifying surfactants, and most minor amount of a multiple release additive. The compositions exhibit improved release, particularly multiple releases, even with polymer modified asphalt binders.Type: GrantFiled: August 25, 1998Date of Patent: November 7, 2000Assignee: Wacker Silicones CorporationInventors: Eugene R. Martin, Michael L. Coffey
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Patent number: 6121439Abstract: A coating composition is composed of a water-soluble polysaccharide composition comprising at least one hydrophobic group selected from aryl, alkyl, alkenyl, aralkyl and mixtures thereof and at least one quaternary ammonium salt group, both connected to a polysaccharide backbone by covalent bonds. This coating is used for improving the leveling of waterborne paints.Type: GrantFiled: July 27, 1998Date of Patent: September 19, 2000Assignee: Hercules IncorporatedInventor: Gijsbert Kroon
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Patent number: 6071984Abstract: This invention relates to reinforced thermoplastic moulding compositions prepared from biodegradable polymers, for example aliphatic or polyester amides, aliphatic polyester urethanes, and to the use thereof for the production of mouldings and to the mouldings, wherein the reinforcing materials are selected from wood flour, fibres of natural origin, minerals of natural origin, cellulose and cellulose derivatives.Type: GrantFiled: June 25, 1998Date of Patent: June 6, 2000Assignee: Bayer AktiengesellschaftInventors: Ernst Grigat, Hanns Peter Muller, Wolfgang Schulz-Schlitte, Aziz El Sayed, Ralf Timmermann
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Patent number: 6063842Abstract: The present invention relates to a thermal transfer ink layer composition, wherein polyvinylacetal resin and cellulose derivatives are used in a mixture for the binder in the thermal transfer ink layer composition of the sublimation thermal transfer ink ribbon, or the another type of a binder is mixed into the mixture of polyvinylacetal resin and cellulose derivatives and so used therein. As a result, the adhesion between the thermal transfer ink layer and substrate film, and the gradation property of printed images are improved as compared to the case in which the respective binders are used individually. More particularly, the present invention relates to the thermal transfer ink layer composition of the sublimation thermal transfer ink ribbon, which can yield high quality images by means of the aforementioned improvements.Type: GrantFiled: May 11, 1998Date of Patent: May 16, 2000Assignee: Hansol Paper Co., Ltd.Inventors: Oh-Seung Kwon, Jeong-Seok Seo, Yong-Cheol Shin, Tae-Woon Cha, Eun-Seong Kim
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Patent number: 6054511Abstract: Hydroxyethylcellulose (HEC), hydrophobically modified hydroxyethylcellulose (HMHEC), hydroxypropylcellulose (HPC), methylhydroxypropylcellulose (MHPC), carboxymethylhydroxyethylcellulose (CMHEC), guar, starch, xanthan, hydroxypropylguar (HP Guar) or carboxymethylhydroxypropylguar (CMHP Guar) are stepwise or continuously reacted with hydrogen peroxide to produce aqueous compositions with a solids content greater than 5% by weight at a viscosity at 25.degree. C. below 9500 mPa.s. It is preferred to use 30-50% hydrogen peroxide to depolymerize the polysaccharide.Type: GrantFiled: January 15, 1993Date of Patent: April 25, 2000Assignee: Aqualon CompanyInventors: J David Angerer, Jashawant Jamanadas Modi, Robert C Szafranski
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Patent number: 6020405Abstract: Phase change (hot melt) ink compositions for use in a phase change (hot melt) ink jet recording device are disclosed to comprise:(a) from about 0.1% to about 30% of one or more colorants; and(b) from about 0.1 to about 99.9% of one or more reversibly-crosslinked-polymers.Recording is conducted by thermally melting the ink at a temperature above ambient temperature (20.degree. C.) to provide prints that possess high quality images, scratch resistance, abrasion resistance, low-temperature storage stability and flexibility, offset and pick resistance, adhesion, and other desired properties. Components other than those listed above may be included in the ink compositions to achieve specific printer, substrate, or end use requirements. Furthermore, the present invention also includes methods for the preparation of the above-described inks.Type: GrantFiled: May 8, 1998Date of Patent: February 1, 2000Assignee: Westvaco CorporationInventors: Michael D. Matzinger, Robert P. Rodebaugh
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Patent number: 6007610Abstract: Phase change (hot melt) ink compositions for use in a phase change (hot melt) ink jet recording device in which recording is conducted by thermally melting the ink at a temperature above ambient temperature (20.degree. C.) to provide prints that possess high quality images, scratch resistance, abrasion resistance, low-temperature storage stability and flexibility, offset and pick resistance, adhesion, and other desired properties are disclosed to comprise:(a) from about 0.1% to about 30% of one or more colorants; and(b) from about 0.1 to about 99.9% of one or more reversibly-crosslinked-polymers. Components other than those listed above may be included in the ink compositions to achieve specific printer, substrate, or end use requirements. Also, the present invention also includes methods for the preparation of reversibly-crosslinked-polymers and for their use in the above-described inks. Furthermore, the disclosed phase change inks inhibit corrosion of metallic internal printer parts.Type: GrantFiled: May 8, 1998Date of Patent: December 28, 1999Assignee: Westvaco CorporationInventors: Michael D. Matzinger, Robert P. Rodebaugh
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Patent number: 6001904Abstract: Phase change (hot melt) ink compositions for use in a phase change (hot melt) ink jet recording device in which recording is conducted by thermally melting the ink at a temperature above ambient temperature (20.degree. C.) to provide prints that possess high quality images, scratch resistance, abrasion resistance, low-temperature storage stability and flexibility, offset and pick resistance, adhesion, and other desired properties are disclosed to comprise:(a) from about 0.1% to about 30% of one or more colorants; and(b) from about 0.1 to about 99.9% of one or more reversibly-crosslinked-polymers.Components other than those listed above may be included in the ink compositions to achieve specific printer, substrate, or end use requirements. Furthermore, the present invention also includes methods for the preparation of reversibly-crosslinked-polymers and for their use in the above-described inks.Type: GrantFiled: May 8, 1998Date of Patent: December 14, 1999Assignee: Westvaco CorporationInventors: Michael D. Matzinger, Robert P. Rodebaugh
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Patent number: 5997894Abstract: A flexible coating composition of hard ceramic particles, a binder and a polymer, and a method of making the same is disclosed. The coating composition can withstand an animal attack with pressures.gtoreq.22,000 psi.Type: GrantFiled: September 19, 1997Date of Patent: December 7, 1999Assignee: Burlington Bio-Medical & Scientific Corp.Inventors: Melvin Blum, Michael Roitberg
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Patent number: 5994530Abstract: The present invention provides certain carboxymethyl cellulose (CMC) esters of higher acids (e.g., CMC acetate propionate, CMC propionate, CMC acetate butyrate, and CMC butyrate)having specific use in aqueous dispersions useful in formulating waterborne coating compositions containing pigments, especially metallic pigments such as aluminum flakes and mica. The esters also have specific use as wetting agents and in high solids coatings.Type: GrantFiled: June 25, 1998Date of Patent: November 30, 1999Assignee: Eastman Chemical CorporationInventors: Jessica Dee Posey-Dowty, Alan Kent Wilson, Larry Gerald Curtis, Paul Michael Swan, Kab Sik Seo
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Patent number: 5990205Abstract: The invention is directed to a cross-linked gel-like polyvinyl-based composition of matter having unique elasticity. The composition is capable of being used as a kneading compound, as well as being moldable, stretchable, and bouncing, for use in play activities. The composition is based on a cohesive polyvinyl alcohol/polyvinyl pyrrolidone nonadhesive and substantially nondrying binder composition that is appropriate for child use. The invention is also directed to a method of making the instant polyvinyl-based composition of matter.Type: GrantFiled: August 18, 1997Date of Patent: November 23, 1999Assignee: Mattel, Inc.Inventor: Abimael Cordova