Water Patents (Class 522/84)
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Patent number: 6569373Abstract: Compositions for use in the manufacture of 3-D objects including compositions for use as a support and/or release material in the manufacture of said 3-D objects are provided. The compositions for use in the manufacture of 3-D objects comprise at least one reactive component, at least one photo-initiator, at least one surface-active agent and at least one stabilizer. The compositions for use as a support and/or release material comprise at least one non-reactive and low-toxicity compound, at least one surface-active agent, at least one stabilizer and optionally at least one reactive component and at least one photo-initiator. Methods for manufacturing a 3-D object using the compositions of the present invention are also provided.Type: GrantFiled: March 12, 2001Date of Patent: May 27, 2003Assignee: Object Geometries Ltd.Inventor: Eduardo Napadensky
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Patent number: 6558795Abstract: A radiation curable coating contains an agent that imparts greater strippability to the cured coating. The agent can be included in the coating or in one or more subsequently applied maintenance coats.Type: GrantFiled: April 20, 2001Date of Patent: May 6, 2003Assignee: Ecolab Inc.Inventors: Keith E. Olson, Victoria Jeanne Jackson
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Publication number: 20030083396Abstract: Ink compositions having excellent imaging and a low tendency to foam are disclosed. The ink compositions may contain one or more fluorochemical surfactants. Methods of coating a substrate by printing the ink composition onto a substrate are also disclosed. Substrates coated with an ink composition are further disclosed.Type: ApplicationFiled: July 23, 2001Publication date: May 1, 2003Inventors: Caroline M. Ylitalo, Ronald K. Thery, Richard L. Severance
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Patent number: 6541536Abstract: The present invention relates to radiation curable aqueous polyurethane dispersions containing 0.05 to 20 wt. %, based on the weight of the non-aqueous constituents of the aqueous polyurethane dispersions, of 2,2-dimethyl-3-hydroxypropionic acid-(2,2-dimethyl-3-hydroxypropyl ester), (HPSNPG, calculated as MW 204.3). The invention also relates to substrates coated with these polyurethane dispersions, in particular to coated wood substrates with good grain enhancing properties.Type: GrantFiled: March 27, 2001Date of Patent: April 1, 2003Assignee: Bayer AktiengesellschaftInventors: Jan Weikard, Erhard Lühmann, Wolfgang Kremer, Jürgen Meixner
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Patent number: 6538046Abstract: The present invention provides a curable polyurethane polymer containing in copolymerized form A) from 10 to 60% by weight of at least one hydroxyl-containing prepolymer having at least one &agr;,&bgr;-ethylenically unsaturated double bond, B) from 0.1 to 30% by weight of at least one compound having at least one isocyanate-reactive hydroxyl group and/or primary or secondary amino group and, in addition, at least one polar functional group per molecule, C) from 0.Type: GrantFiled: July 11, 2000Date of Patent: March 25, 2003Assignee: BASF AktiengesellschaftInventors: Wolfgang Paulus, Werner Lebkücher, Klaus Menzel, Wolfgang Reich
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Publication number: 20030027884Abstract: A binder composition for a photocatalytic coating is disclosed. The binder composition comprises 60-80 wt. % of a first monomer which is a non-fluoro containing monomer selected from the group consisting of acrylic monomers, methacrylic monomers, and mixtures thereof, having an aliphatic group and 20-40 wt. % of a second monomer which is at least one monomer selected from the group consisting of a fluoro containing monomer and a silicone monomer. The fluoro containing monomer is selected from the group consisting of styrene monomer, acrylic monomer and methacrylic monomer.Type: ApplicationFiled: July 24, 2001Publication date: February 6, 2003Inventors: Seong-Kil Kim, Hee-Dong Jang, Kyung-Ik Lee, Hong-Soo Park
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Patent number: 6515039Abstract: The invention relates to a method for the parallel and combinatory synthesis of compounds bound to a continuous polymeric solid phase supporting material. According to the method, a continuous polymeric solid phase supporting material is prepared, the material comprising a matrix of a supporting polymeric material and graft copolymer chains covalently bound to the supporting matrix, the graft copolymer chains having reactive groups being able to react with organic compounds, thereby forming spatially defined reaction sites. The method then comprises the sequential spotting of synthesis building blocks or reagents at the various reaction sites on the continuous solid phase supporting material to yield a substrate library of compounds bound to the solid phase supporting material, whereby each reaction site on the continuous solid phase supporting material determines the composition of the synthesized compound, which is bound directly on the supporting matrix via the reactive groups of the graft polymer chain.Type: GrantFiled: June 15, 2000Date of Patent: February 4, 2003Assignee: Poly-An GmbHInventors: Mathias Ulbricht, Rudolf Volkmer-Engert, Lothar Germeroth, Holger Wenschuh
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Patent number: 6506055Abstract: A method of reducing dentin sensitivity comprising: applying an effective amount of an acid to a dentin surface to form a treated surface; and administering an effective amount of an acidic oxalate to the treated surface so as to occlude dentinal tubules beneath the dentin surface. The method may optionally comprise the subsequent application of a suitable bonding agent. The invention further provides a kit for the treatment of dentin sensitivity, comprising a first container of an acid treatment composition, and a second container of an acidic oxalate composition.Type: GrantFiled: October 13, 1999Date of Patent: January 14, 2003Assignee: MCG Research InstituteInventors: David H. Pashley, Ricardo M. Carvalho, Jose C. Pereira
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Patent number: 6500875Abstract: An ink for ink-jet recording contains a coloring agent, a polymerizable oligomer, water, and a photopolymerization initiator having a solubility in water of 3 percent by weight or more. Another ink for ink-jet recording contains a coloring agent, a polymerizable oligomer having at least two acryloyl groups and a solubility in water of 10 percent by weight or more, a photopolymerization initiator, and water. The specified polymerizable oligomer or photopolymerization initiator reduces bleeding of the ink on recording media.Type: GrantFiled: October 17, 2001Date of Patent: December 31, 2002Assignee: Canon Kabushiki KaishaInventor: Hiromichi Noguchi
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Publication number: 20020198279Abstract: A single component liquid heat-curable adhesive formulation that is stable at room temperature. The formulation includes from about 5 to about 70 wt % of at least one acrylate monomer, from about 5 to about 94 wt % of an acrylate oligomer, and from about 0.1 to about 10 wt % of a thermal initiator selected from the group consisting of diacyl peroxides, benzoyl peroxides and peroxy esters. A photo initiator may be included thereby rendering the stable liquid formulation to be both heat-curable and UV-curable.Type: ApplicationFiled: June 8, 2001Publication date: December 26, 2002Inventor: Chau Thi Minh Ha
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Publication number: 20020183414Abstract: A composition and method that provides a chemically grafted coating onto a substrate. The composition comprises an acrylate and a grafting initiator. The acrylate may be a waterborne urethane acrylate. The composition may also comprise resistance agents, adhesion agents, UV curing photoinitators, defoaming agents, and/or deglossing agents. The substrate may be any wood or plastic, but works well with heat shrinkable polyolefin tubing. The composition may also be quick curing such that the coating from the composition may be cured under a D bulb and an H bulb at a rate of 100-160 feet/minute. The coating on the substrate resists delamination and wear. The coating may have indicia printed on the coating, the indicia being composed from ink or other printable materials.Type: ApplicationFiled: June 17, 2002Publication date: December 5, 2002Applicant: Sumitomo ElectricInventors: Mohan LalSanduja, Paul Thotttathil, Ella Mayslich, Carl Horowitz
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Patent number: 6489375Abstract: An Offset Lithographic Printing Process employing low VOC lithographic printing ink formulations containing monomeric diluents, curable by cationic polymerization in the presence of fountain solution and resin rheology modifiers compatible with cationic catalysts.Type: GrantFiled: September 20, 2001Date of Patent: December 3, 2002Assignee: Sun Chemical CorporationInventors: Edward Stone, Gordon Kotora, Mikhail Laksin, Subhankar Chatterjee, Bhalendra J. Patel
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Patent number: 6486226Abstract: The present invention relates to a novel photoinitiator system comprising one or more acylphosphine oxide photoinitiators and one or more lightfast red, blue or violet organic pigments. Low yellow color formation results upon curing ethylenically unsaturated compounds with the new photoinitiator system. Particular applications include clear and white coatings, screen inks, gel coats, powder coatings, composites, adhesives and lenses.Type: GrantFiled: December 5, 2000Date of Patent: November 26, 2002Assignee: Ciba Specialty Chemicals CorporationInventors: Walid Al-Akhdar, David Bramer, Eugene Valentine Sitzmann, Jr., Donald A. Wostratzky
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Patent number: 6486228Abstract: Photoinitiator combinations comprising at least one compound of formula (I) wherein R1 is C1-C4alkyl, C1-C4alkoxy or halogen; R2 is hydrogen, C1-C4alkyl, C1-C4alkoxy or halogen; R3 is, for example, C1-C20alkyl, cyclopentyl, cyclohexyl, phenyl-C1-C4alkyl, naphthyl or biphenylyl or an O-, S- or N-containing 5- or 6-membered heterocyclic ring; and at least one compound of formula (II) wherein R1 and R2 are as defined above; R9 is, for example, C1-C20alkyl, cyclopentyl, cyclohexyl, phenyl-C1-C4alkyl, naphthyl, biphenylyl or an O-, S- or N-containing 5- or 6-membered heterocyclic ring; and R10 is, for example, C1-C20alkyl, C2-C20alkyl interrupted by one or more O atoms, cyclopentyl, cyclohexyl, phenyl-C1-C4alkyl, naphthyl, biphenylyl or an O-, S- or N-containing 5- or 6-membered heterocyclic ring; are reactive photohardeners causing only a low degree of yellowing in the cured substrates.Type: GrantFiled: March 28, 2001Date of Patent: November 26, 2002Assignee: Ciba Specialty Chemicals CorporationInventors: Manfred Köhler, Jean-Pierre Wolf, André Litzler, Guido Tolotti, Nils Hoeck
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Patent number: 6479593Abstract: Provided herein are cross-linked super absorbing polymers made by reacting a copolymer having an esterifiable acid group with a cyclic alkylene carbonate. The resulting cross-linked materials have an increased ability to retain absorbed liquids even under the influence of applied stress. Catalysts are also disclosed which are useful in promoting the reaction between the alkylene carbonate and copolymer.Type: GrantFiled: September 10, 2001Date of Patent: November 12, 2002Assignee: Huntsman Petrochemical CorporationInventors: John H. Clements, Howard P. Klein, Edward T. Marquis, James R. Machac, Jr., Katty Darragas
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Patent number: 6475702Abstract: A photosensitive resin composition developable with water or a diluted alkali solution comprises the following components (A) to (D). That is, the component (A) is a water-soluble photosensitive resin selected from the group consisting of a first resin obtained by introducing a styryl pyridinium group into a polyvinyl alcohol polymer, a second resin obtained by introducing a styryl quinolinium group into the polyvinyl alcohol polymer, and a third resin obtained by adding N-alkylol(meth)acrylamide to the polyvinyl alcohol polymer. The component (B) is a photosensitive prepolymer having a carboxyl group and at least two ethylenically unsaturated groups in molecule. The component (C) is a photopolymerization initiator. The component (D) is water. The photosensitive resin composition will be preferably used as a photoresist ink for manufacturing printed wiring boards.Type: GrantFiled: August 14, 2001Date of Patent: November 5, 2002Assignee: Goo Chemical Co., Ltd.Inventor: Toshio Morigaki
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Publication number: 20020160205Abstract: A co-mingled polyurethane-polyvinyl ester composition can be used as a coating, which has good scratch, mar and solvent resistance. The coating is derived from a waterborne polyurethane solution containing free radically polymerizable monomers such as acrylate, ultraviolet light initiators, and optionally urethane crosslinking agents. A process for forming the co-mingled polyurethane-polyvinyl ester composition comprises drying the waterborne polyurethane containing the polymerizable monomers therein and radiation polymerizing, as by ultraviolet light, the free radically polymerizable monomers on a substrate such as a plastic sheet to form a laminate. Subsequently, the laminate can be utilized to form a coating on a product as by thermoforming, where if urethane crosslinking agents are utilized, the polyurethane will be crosslinked.Type: ApplicationFiled: April 11, 2002Publication date: October 31, 2002Applicant: OMNOVA Solutions Inc.Inventors: Guillermina C. Garcia, Raymond J. Weinert, Martin J. Fay
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Publication number: 20020156145Abstract: Photoactivatable water born coating composition comprisingType: ApplicationFiled: October 25, 2001Publication date: October 24, 2002Inventors: Keimpe Jan Van Den Berg, Arie Noomen, Frederik Rous, Ignace Damiaan Christiaan Rood, Heert Andringa, Klaas Jan Hendrik Kruithof, Ann Kerstin Birgitta Lindell Kjellqvist
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Patent number: 6461691Abstract: A radiation curable, flexible, paintable composition produced from epoxy compounds and one or more polyol(s) has enhanced durability, thick and thin film adhesion, resistance to mold growth and dimensional changes while reducing solvent emissions. The composition can reduce, if not eliminate, runs and drips during the thermal bake cycles which are associated with using conventional compositions in automotive applications.Type: GrantFiled: November 24, 1999Date of Patent: October 8, 2002Assignee: Denovus LLCInventors: Donald W. Taylor, Todd W. Scrivens, Laurie Denise Lovshe, Jeffrey T. Pachl
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Patent number: 6461728Abstract: Pressure sensitive adhesives can be formed using gamma irradiation. One embodiment is a pressure sensitive adhesive which is a polymeric reaction product formed by gamma ray irradiation of an emulsion composition. The emulsion composition includes water; (meth)acrylate monomer material; polar, free-radically polymerizable material that is copolymerizable with the (meth)acrylate monomer material; and at least one emulsifier.Type: GrantFiled: December 29, 2000Date of Patent: October 8, 2002Assignee: 3M Innovative Properties CompanyInventors: Douglas E. Weiss, Thu-Van T. Tran, Karen J. Leisinger
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Patent number: 6462100Abstract: The invention discloses methods for making foams comprising functionalized metal oxide nanoparticles by photopolymerizing or thermally polymerizing emulsions comprising a reactive phase and a phase immiscible with the reactive phase components. Foams made from water-in-oil emulsions, including high internal phase emulsion are also disclosed. Articles and uses for the foams are also described.Type: GrantFiled: July 23, 2001Date of Patent: October 8, 2002Assignee: 3M Innovative Properties CompanyInventors: Kristin LaVelle Thunhorst, Douglas Alan Hanggi
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Patent number: 6444723Abstract: A crosslinked micellar gel composition is comprised of a polymer formed by a reaction between (a) ionic surfactant units which include ionic surfactant molecules, each of which includes a counterion which has a first polymerizable functional group, (b) crosslinking agent molecules, each of which includes two second polymerizable functional groups, and (c) a reaction initiator selected from the group consisting of reaction initiator molecules and ultraviolet light radiation, wherein the reaction initiator initiates a reaction between a plurality of the ionic surfactant units with each other and a plurality of the ionic surfactant units with the second polymerizable functional groups. The polymer compositions formed from the reactions are crosslinked micellar gels which include a network structure of rodlike micelles forming a soft gel material which retains features and utility of rodlike micelles and benefits from the structural stability of a crosslinked polymer matrix.Type: GrantFiled: August 18, 2000Date of Patent: September 3, 2002Assignee: The United States of America as represented by the Secretary of CommerceInventor: Steven R. Kline
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Patent number: 6444721Abstract: A water-dispersible, radiation-curable polyurethane composed essentially of a) organic, aliphatic or alicyclic polyisocyanates, b) cycloaliphatic diols and/or cycloaliphatic diamines, c) compounds containing at least one isocyanate-reactive group and at least one free-radically polymerizable unsaturated group, d) compounds containing at least one isocyanate-reactive group and at least one dispersing-active group, e) if desired, compounds containing at least two isocyanate-reactive groups having a molecular weight <1000 g/mol, f) if desired, compounds other than a) to d) containing at least one isocyanate-reactive group.Type: GrantFiled: January 3, 2001Date of Patent: September 3, 2002Assignee: BASF AktiengesellschaftInventors: Reinhold Schwalm, Frank Völlinger, Klaus Menzel, Wolfgang Reich, Erich Beck, Thomas Jaworek
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Patent number: 6433038Abstract: Disclosed is a photocurable ink composition for use in an ink jet recording method wherein an ink composition is brought into contact with a recording medium followed by a photocuring reaction to perform printing. The photocurable ink composition can offer good coating strength, chemical resistance, dispersion stability, and printing stability. This photocurable ink composition comprises at least a colorant, a urethane oligomer, a monomer having a tri- or higher functional reactive group, a photopolymerization initiator, and an aqueous solvent. After printing the photocurable ink composition, ultraviolet light is applied to cure the print. The colorant is preferably anatase titanium dioxide.Type: GrantFiled: March 14, 2000Date of Patent: August 13, 2002Assignee: Seiko Epson CorporationInventors: Seiichi Tanabe, Kiyohiko Takemoto
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Patent number: 6428862Abstract: An ink for ink-jet recording contains a coloring agent, a polymerizable oligomer, water, and a photopolymerization initiator having a solubility in water of 3 percent by weight or more. Another ink for ink-jet recording contains a coloring agent, a polymerizable oligomer having at least two acryloyl groups and a solubility in water of 10 percent by weight or more, a photopolymerization initiator, and water. The specified polymerizable oligomer or photopolymerization initiator reduces bleeding of the ink on recording media.Type: GrantFiled: April 20, 1999Date of Patent: August 6, 2002Assignee: Canon Kabushiki KaishaInventor: Hiromichi Noguchi
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Patent number: 6414049Abstract: Acylphosphine initiators used in making ophthalmic lenses are stabilized by the addition of an acid to the monomer mix used to make the lenses.Type: GrantFiled: March 22, 2000Date of Patent: July 2, 2002Assignee: Johnson & Johnson Vision Care, Inc.Inventors: Azaam Alli, Joe M. Wood, Ivan M. Nunez, Robert N. Love, James D. Ford, Douglas G. Vanderlaan
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Patent number: 6414048Abstract: A composition and method that provides a chemically grafted coating onto a substrate. The composition comprises an acrylate and a grafting initiator. The acrylate may be a waterborne urethane acrylate. The composition may also comprise resistance agents, adhesion agents, UV curing photoinitators, defoaming agents, and/or deglossing agents. The substrate may be any wood or plastic, but works well with heat shrinkable polyolefin tubing. The composition may also be quick curing such that the coating from the composition may be cured under a D bulb and an H bulb at a rate of 100-160 feet/minute. The coating on the substrate resists delamination and wear. The coating may have indicia printed on the coating, the indicia being composed from ink or other printable materials.Type: GrantFiled: December 7, 1999Date of Patent: July 2, 2002Assignees: Sumitomo Electric Fine Polymer, Inc., Sumitomo Electric Interconnect Products, Inc.Inventors: Mohan Lal Sanduja, Paul Thottathil, Ella Mayslich, Carl Horowitz
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Patent number: 6410610Abstract: A process for producing water-soluble, cationic polyelectrolytes is described, wherein the polymerization of the water-soluble monomers is initiated at low temperatures using a combination of UV light, photoinitiator and a redox system, and is characterized in that the redox system is capable of initiating the polymerization only at temperatures higher than or equal to 20° C. The polymers have a high molecular weight and a low content of residual monomer.Type: GrantFiled: April 26, 2000Date of Patent: June 25, 2002Assignee: Stockhausen GmbH & Co. KGInventor: Helmut Brehm
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Patent number: 6406536Abstract: Described herein is the use of a combination of organic additives that is particularly advantageous for the preparation of cementitious compositions having a high conservation of the degree of white, which contain in mass a photocatalyst that is able to oxidize, in the presence of light, air and ambient humidity, pollutant substances present in the environment, the said photocatalyst being, in particular, titanium dioxide prevalently in the form of anatase. The above combination of additives comprises the following: a melamine resin; a cellulose ether; a polymer chosen from among an ethylene polymer, an acrylic polymer, and a terpolymer comprising as co-monomers at least one ester of acrylic acid with an alcohol and at least one ester of vinyl alcohol with a carboxylic acid, or alternatively, an acrylic, styrene or butadiene latex; and a chemically modified starch.Type: GrantFiled: July 17, 2000Date of Patent: June 18, 2002Assignee: Italcementi S.p.A.Inventors: Luigi Caśsar, Carmine Pepe
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Patent number: 6407145Abstract: The invention relates to a novel process for the manufacture of mouldings, especially contact lenses, in which a soluble prepolymer comprising crosslinkable groups is crosslinked in solution, and also to mouldings, especially contact lenses, obtainable in accordance with that process. The present invention relates also to novel prepolymers that can be used in the process according to the invention, especially derivatives of a polyvinyl alcohol having a molecular weight of at least about 2000 that, based on the number of hydroxy groups of the polyvinyl alcohol, comprise from approximately 0.Type: GrantFiled: September 17, 1998Date of Patent: June 18, 2002Assignee: Novartis AGInventor: Beat Müller
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Publication number: 20020065335Abstract: An useful aqueous photocurable resin composition is provided. The aqueous photocurable resin composition of the present invention comprises at least water, a polymerizable material polymerizable with radical initiation and a water-soluble photopolymerization initiator which generates a radical with light, wherein the polymerizable material has at least two polymerizable functional groups and one anionic functional group.Type: ApplicationFiled: September 14, 2001Publication date: May 30, 2002Inventors: Hiromichi Noguchi, Yuko Suga, Hiroyuki Maeda, Masako Shimomura
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Patent number: 6376570Abstract: The present invention provides aqueous pigmented coating compositions having a pigment volume concentration pvc of at least 10 which are essentially free from volatile organic compounds and comprise: (i) at least one aqueous room temperature film forming polymer dispersion of at least one polymer P which is composed of esters of acrylic acid with C2-C20 alkanols or C5-C10 cycloalkanols and/or esters of methacrylic acid with C1-C20 alkanols or C5-C10 cycloalkanols, (ii) at least one inorganic pigment and, if desired, organic or inorganic fillers, (iii) from 0.05 to <0.3% by weight, based on the polymer P, of at least one nonpolymerizable photoinitiator, (iv) water, and customary auxiliaries.Type: GrantFiled: April 19, 2000Date of Patent: April 23, 2002Assignee: BASF AktiengesellschaftInventors: Cheng-Le Zhao, Uwe Dittrich, Manfred Schwartz, Gernot Franzmann
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Patent number: 6361924Abstract: Disclosed are aqueous photosolder resist compositions containing (A) an aqueous solution prepared by neutralizing a resin containing a free-radically polymerizable group and a carboxyl group with a base; (B) an inorganic filler; (C) a photocurable mixture of (c-1) a multifunctional acrylic monomer, (c-2) a compound having a cyclic ether group other than a glycidyl group and (c-3) a photoinitiator; and optionally (D) an aqueous solution prepared by neutralizing a frege-radically polymerized substance having an acid value of 130-230 mgKOH/mg. The cyclic ether group other than a glycidyl group is an alicyclic epoxy or oxetane group, for example.Type: GrantFiled: August 4, 2000Date of Patent: March 26, 2002Assignee: Nippon Paint Co., Ltd.Inventors: Naoya Yabuuchi, Minoru Fujita, Osamu Namba, Keiichi Okajima
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Patent number: 6355703Abstract: The invention relates to a liquid curable resin composition comprising: (A) a polyfunctional (meth)acrylic compound containing at least three (meth)acryloyl groups in the molecule, (B) a reaction product of an alkoxy silane compound having a polymerizable unsaturated group, an urethane bond group, and an organic group represented by the following formula (1), wherein X is NH—, —O—, or —S— and Y is an oxygen atom or a sulfur atom, and when X is —O—, Y is a sulfur atom, with silica particles, (C) a radiation curable acrylic resin comprising a carboxyl group in its molecule, of which the Tg is 50 or higher, (D) a radiation polymerization initiator, and (E) a non reactive solvent. The invention further relates to the coating obtained after evaporation of the solvent, and to the cured coating after irradiation.Type: GrantFiled: June 12, 2000Date of Patent: March 12, 2002Assignees: DSM N. V., JSR Corporation, Japan Fine Coatings Co., Ltd.Inventors: Atsushi Baba, Yuichi Eriyama, Takashi Ukachi
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Patent number: 6353037Abstract: The invention discloses methods for making foams comprising functionalized metal oxide nanoparticles by photopolymerizing or thermally polymerizing emulsions comprising a reactive phase and a phase immiscible with the reactive phase components. Foams made from water-in-oil emulsions, including high internal phase emulsion are also disclosed. Articles and uses for the foams are also described.Type: GrantFiled: July 12, 2000Date of Patent: March 5, 2002Assignee: 3M Innovative Properties CompanyInventors: Kristin LaVelle Thunhorst, Douglas Alan Hanggi
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Patent number: 6348516Abstract: Process for using microwave irradiation to prepare solutions of polymers functionalized with acid groups The invention relates to a process for preparing aqueous, hydrous and anhydrous solutions of polymers functionalized with acid groups, which comprises using microwave radiation to supply the heat required to prepare the solution. The solutions are suitable as a starting material for producing gas diffusion electrodes, fuel cells and polymer-electrolyte-stabilized platinum nanoparticles.Type: GrantFiled: July 6, 2000Date of Patent: February 19, 2002Assignee: Celanese Ventures GmbHInventors: Thomas Soczka-Guth, Helmut Witteler, Gregor Deckers, Georg Frank, Kilian Brehl, Jürgen Lenze, Harald Bönsel, Rüdiger Knauf
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Patent number: 6335380Abstract: Fluid silico-acrylic compositions, which can be polymerised by heat and radiation, by radical-type mechanism, with very low water (less than 1%) and volatile solvent content, containing silica, a silane and a multifunctional acrylic monomer, in which the silica is in the form of individualised particles, with a mean diameter of between 40 and 100 nm, not linked to each other by siloxane bonds, and the silane is a vinylsilane of formula (I) H2C═CH—Si(OR)3 (I) in which R represents a methyl or ethyl radical and the multifunctional acrylic monomer is 1,6-hexanediol diacrylate, and which are transparent, colourless and stable over time.Type: GrantFiled: November 2, 1999Date of Patent: January 1, 2002Assignee: Clariant (France) S.A.Inventors: Didier Wilhelm, Armand Eranian, Philippe Vincent
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Patent number: 6335381Abstract: The present invention relates to an aqueous coating composition containing a) a urethane (meth)acrylate having (meth)acryloyl groups and optionally free isocyanate groups, b) optionally a further polyisocyanate, c) a UV initiator which initiates polymerization by a free radical mechanism, and d) one or more aqueous binders containing isocyanate-reactive groups. The present invention also relates to the use of the coating compositions for coating various substrates, especially metal substrates.Type: GrantFiled: April 20, 1999Date of Patent: January 1, 2002Assignee: Bayer AktiengesellschaftInventors: Wieland Hovestadt, Wolfgang Fischer, Manfred Bock, Theodor Engbert, Lothar Kahl
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Patent number: 6332291Abstract: This invention relates to radiation-curable coating compositions which contain A) compounds having one or more free-radically polymerisable double bonds which additionally contain at least one further functional group reactive for the purposes of an addition and/or condensation reaction, B) compounds having one or more free-radically polymerisable double bonds, which additionally contain at least one further functional group reactive for the purposes of an addition and/or condensation reaction, wherein the additional reactive functional group is complementary to or reactive towards the additional reactive functional groups of component A), C) optionally at least one monomeric, oligomeric and/or polymeric compound having at least one functional group reactive towards the functional groups from component A) or component B) D) one or more photoinitiators as well as E) optionally solvents, water, pigments and/or extenders as well as conventional lacquer additives, wherein component A) and component B) diffeType: GrantFiled: December 17, 1999Date of Patent: December 25, 2001Assignee: Herberts GmbH & Co. KGInventors: Carmen Flosbach, Helmut Löffler, Karin Maag
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Patent number: 6322952Abstract: A photosensitive resin composition developable with water or a diluted alkali solution comprises the following components (A) to (D). That is, the component (A) is a water-soluble photosensitive resin selected from the group consisting of a first resin obtained by introducing a styryl pyridinium group into a polyvinyl alcohol polymer, a second resin obtained by introducing a styryl quinolinium group into the polyvinyl alcohol polymer, and a third resin obtained by adding N-alkylol (meth)acrylamide to the polyvinyl alcohol polymer. The component (B) is a photosensitive prepolymer having a carboxyl group and at least two ethylenically unsaturated groups in molecule. The component (C) is a photopolymerization initiator. The component (D) is water. The photosensitive resin composition will be preferably used as a photoresist ink for manufacturing printed wiring boards.Type: GrantFiled: June 1, 2000Date of Patent: November 27, 2001Assignee: Goo Chemical Co., Ltd.Inventor: Toshio Morigaki
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Publication number: 20010038918Abstract: The present invention relates to radiation curable aqueous polyurethane dispersions containing 0.05 to 20 wt. %, based on the weight of the non-aqueous constituents of the aqueous polyurethane dispersions, of 2,2-dimethyl-3-hydroxypropionic acid-(2,2-dimethyl-3-hydroxypropyl ester), (HPSNPG, calculated as MW 204.3). The invention also relates to substrates coated with these polyurethane dispersions, in particular to coated wood substrates with good grain enhancing properties.Type: ApplicationFiled: March 27, 2001Publication date: November 8, 2001Inventors: Jan Weikard, Erhard Luhmann, Wolfgang Kremer, Jurgen Meixner
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Patent number: 6310115Abstract: Radiation curable ink compositions for ink jet contain radiation curable monomers containing vinylether and acrylate functions.Type: GrantFiled: September 15, 1999Date of Patent: October 30, 2001Assignee: AGFA-GevaertInventors: Luc Vanmaele, Emiel Verdonck
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Publication number: 20010029272Abstract: A water-dispersible, radiation-curable polyurethane composed essentially ofType: ApplicationFiled: January 3, 2001Publication date: October 11, 2001Applicant: BASF AkiengesellschaftInventors: Reinhold Schwalm, Frank Vollinger, Klaus Menzel, Wolfgang Reich, Erich Beck, Thomas Jaworek
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Patent number: 6300428Abstract: The invention provides aqueous, solvent based, and solvent-free curable coating compositions which include (A) the reaction product of an epoxy resin, acid, and tertiary amine; (B) a reactive diluent, and, optionally, (C) a curing agent. The compositions are useful for forming cured coated substrates, that are especially suitable for food and beverage packaging.Type: GrantFiled: January 27, 2000Date of Patent: October 9, 2001Assignee: The Valspar CorporationInventors: Thomas A. Stevenson, Larry Brandenburger, William McCarty, John Mazza, Jeffrey Niederst
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Publication number: 20010027223Abstract: Fluid silico-acrylic compositions, stable in the long term, polymerizable thermally and by radiatiion, by mechanism giving rise to free radicals, with a very low water (less than 1%) and volatile solvent content, containing silica, a silane, and a multifunctional acrylic monomer, in which the silica is in the form of indivualized particles with an average diameter with the range 9 amd 100 nm, not interconnected by siloxane bonds, the silane is a vinyl silane with the formula (I)Type: ApplicationFiled: March 30, 2001Publication date: October 4, 2001Applicant: Clariant ( France) S.A.Inventors: Didier Wilhelm, Armand Eranian, Ngoc Can Vu, Philippe Vincent
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Patent number: 6297294Abstract: A method of increasing the adhesion of a photopolymerizable composition and the photopolymerized composition formed therefrom, which method comprises the step of adding an adhesion promoter, which consists essentially of a polycarboxylic acid having three to six carbon atoms, to the photopolymerizable composition.Type: GrantFiled: October 7, 1999Date of Patent: October 2, 2001Assignee: E. I. du Pont de Nemours and CompanyInventor: Kenneth Isaac Lazaar
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Patent number: 6294592Abstract: The invention provides for pigment preparations containing, as main components, A) at least a finely divided organic or inorganic pigment, B) a dispersing agent composed of formaldehyde-arylsulfonic acid or oxalkylated phenols condensates, C) a radiation curable binder, D) optionally a photoinitiator, and E) water. The invention also provides for the use of said preparations as inks for said ink jet printing method.Type: GrantFiled: December 30, 1999Date of Patent: September 25, 2001Assignee: BASF AktiengesellschaftInventors: Manfred Herrmann, Gert Motzkus, Wolfgang Reich, Rüdiger Sens, Bernd Siegel, Karl Siemensmeyer
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Patent number: 6265461Abstract: Radiation curable polyester composition AB, capable of forming solutions or dispersions in water of high solid content which can be produced by mixing or pre-condensing a water soluble, radiation-curable emulsifying resin A which contains ester and acid groups and has an acid number from 20 to 300 mg/g and water-insoluble, radiation-curable polymer B containing ester and/or ether groups, wherein resin A is a reaction product of an alkoxylated polyol A1 having at least 3 hydroxyl groups and 3 to 10 oxyalkylene units per molecule, these oxyalkylene units containing 2 to 4 carbon atoms each, with an &agr;, &bgr;-unsaturated carboxylic acid A2 having each a free carboxyl group per molecule, and a carboxylic acid A3 which is at least tri-functional and wherein polymer B is a reaction product of aliphatic, linear, branched or cyclic alcohols B1 with compounds B2, selected from alkylene oxides B21, dicarboxylic acids B22 and aliphatic lactones B23 having 4 to 12 carbon atoms as well as compounds B3 selected from &agType: GrantFiled: August 25, 1999Date of Patent: July 24, 2001Assignee: Vianova Resins AGInventors: Edmund Urbano, Ulrike Kuttler, Martin Gerlitz, Rami-Raimund Awad
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Patent number: 6262141Abstract: Methods of preparing an acrylic polymer according to the present invention comprise the steps of: forming a gelled polymer by polymerizing a mixture containing an acrylic monomer and a photoinitiator; comminuting the gelled polymer to produce gel particles; and irradiating the gel particles with light to decompose the photoinitiator, simultaneously with, or after, the step of comminuting. The gel particles may be irradiated with UV light while they are being dried in a fluid-bed dryer.Type: GrantFiled: October 6, 1999Date of Patent: July 17, 2001Assignee: Cytec Technology CorporationInventors: Douglas A. Cywar, Roderick G. Ryles, Melvyn Holdsworth
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Patent number: 6258870Abstract: This invention provides novel methods for the formation of biocompatible membranes around biological materials using photopolymerization of water soluble molecules. The membranes can be used as a covering to encapsulate biological materials or biomedical devices, as a “glue” to cause more than one biological substance to adhere together, or as carriers for biologically active species. Several methods for forming these membranes are provided. Each of these methods utilizes a polymerization system containing water-soluble macromers, species which are at once polymers and macromolecules capable of further polymerization. The macromers are polymerized using a photoinitiator (such as a dye), optionally a cocatalyst, optionally an accelerator, and radiation in the form of visible or long wavelength UV light. The reaction occurs either by suspension polymerization or by interfacial polymerization.Type: GrantFiled: January 13, 1997Date of Patent: July 10, 2001Assignee: Board of Regents, The University of Texas SystemsInventors: Jeffrey A. Hubbell, Chandrashekhar P. Pathak, Amarpreet S. Sawhney, Neil P. Desai, Syed F. A. Hossainy