Organic Base Patents (Class 427/155)
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Patent number: 7259202Abstract: A new and improved method for pre-treating stencils is herein disclosed. A release agent provides a protective barrier when applied to stencils prior to applying paint to the surface. The release agent allows the paint to removed by soaking and/or washing the pre-treated surface with warm water.Type: GrantFiled: April 5, 2004Date of Patent: August 21, 2007Inventors: Maureen Soens, Ken Soens
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Patent number: 7192621Abstract: The present invention related a keypad (1) in which a keypad main body (4) composed of a thermoplastic elastomer has formed thereon a cross-linked cured resin layer (5) of a cross-linked cured resin that is separable from the keypad main body (4) by swelling with a predetermined solvent, or a method of separating the keypad main body (4) and the cross-linked cured resin layer (5).Type: GrantFiled: December 10, 2002Date of Patent: March 20, 2007Assignee: Polymatech Co., Ltd.Inventor: Seiko Motegi
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Patent number: 7128942Abstract: A vehicle tire provided with a protective film which covers a surface of the tire is disclosed, wherein the protective film is indicative of at least one of tire data including tire conicity and radial force variation of the tire and can be washed away with water. Also a method of fitting tires on a vehicle is disclosed, wherein the installing positions of the tires are determined according to the data indicated by the protective film, and thereafter the protective film is washed away with water.Type: GrantFiled: August 20, 2002Date of Patent: October 31, 2006Assignee: Sumitomo Rubber Industries, Ltd.Inventor: Kazuya Suzuki
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Patent number: 6954978Abstract: A method is provided for protecting a head element of a computer disk drive during rework operations by applying thioropolymeric protective coating or film to the head element after the disk drive has been opened. Application of the protective coating is preferably performed utilizing a solvent-mediated deposition process. Further aspects of the invention include the application of the protective coating to the head element prior to storage of the head element or prior to shipping the head element in order to facilitate rework of the head element or other components of the disassembled disk drive.Type: GrantFiled: October 10, 2001Date of Patent: October 18, 2005Assignee: Maxtor CorporationInventors: Mark S. Crowder, Richard E. Rupp, Jr., Robert Turner, Meherab Amaria
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Patent number: 6926745Abstract: Hydroscopic polymer gels can be formed by applying a water soluble or water dispersible polymer on a surface and allowing water to be sequestered from the atmosphere into the polymer. The polymer gels provides for easier next time cleaning. In addition, the surfaces of textiles and related materials can be engineered by the formation of polymer gel films thereon. Polymer gels also provide a vehicle by which sites of chemical reactions can be localized.Type: GrantFiled: October 2, 2002Date of Patent: August 9, 2005Assignee: The Clorox CompanyInventors: David R. Scheuing, Malcolm DeLeo, Sara Morales
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Patent number: 6902786Abstract: The present invention relates to a pressure-sensitive adhesive composition for a surface-protective film, the composition comprising 40% by weight or more of a hydrogenated random copolymer consisting of 1 to 50% by weight of styrene and 99 to 50% by weight of a diene hydrocarbon and 60% by weight or less of a tackifier resin and/or a softener, and when the pressure-sensitive adhesive composition of the present invention is applied to the surface-protective film, the composition is caused to exhibit excellent adhesion to adherends, not to leave stains of the adherends, nor to leaves traces thereon when the films are removed from the adherends, and can also impart excellent removability to surface-protective films.Type: GrantFiled: July 10, 2002Date of Patent: June 7, 2005Assignee: Nichiban Company, LimitedInventors: Yasuaki Kitazaki, Kinnosuke Hino, Syuji Ichimura
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Patent number: 6893762Abstract: This invention relates to a method of manufacturing a metal-supported tubular micro-solid oxide fuel cell, and a fuel cell made from such method. The method comprises the steps of coating a wooden substrate member with a conductive substrate layer, coating the substrate layer with an inner electrode layer, coating the inner electrode layer with an electrolyte layer, drying and sintering the coated substrate member such that the substrate member combusts, coating the electrolyte layer with an outer electrode layer, and then drying and sintering the layers.Type: GrantFiled: July 25, 2002Date of Patent: May 17, 2005Assignee: Alberta Research Council, Inc.Inventors: Partho Sarkar, Lorne Johanson, Hongsang Rho
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Patent number: 6791108Abstract: The invention involves tunneling tips to their conducting surface, and specifically the deposition of a monolayer of fullerene C60 onto the conducting plate surface to protect the tunneling tip from contact. The Fullerene C60 molecule is approximately spherical, and a monolayer of fullerene has a thickness of one nanometer, such that a monolayer thereby establishing the theoretical distance desired between the MEMS' tunneling tip and the conducting plate. Exploiting the electrical conductivity of C60, the tip can be accurately positioned by simply monitoring conductivity between the fullerene and the tunneling tip. By monitoring the conductivity between the tip and the fullerene layer as the tip is brought in proximity, the surfaces can be brought together without risk of contacting the underlying conducting surface.Type: GrantFiled: June 20, 2001Date of Patent: September 14, 2004Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventor: John D. Olivas
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Patent number: 6777079Abstract: Pressure sensitive adhesive compositions, and adhesive articles based thereon, crosslinked using a bis-amide crosslinking agent that are thermally stable, yet cleanly removable from a variety of substrates following exposure to high temperatures.Type: GrantFiled: November 30, 2001Date of Patent: August 17, 2004Assignee: 3M Innovative Properties CompanyInventors: Zhiming Zhou, Lori P. Engle
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Patent number: 6761784Abstract: The temporary protection of polymeric articles, particularly polymeric articles with optical qualities such as ophthalmic lenses formed by the lamination of individual lens blanks, can be effected by the application of protective polymeric compositions to the surface of the polymer article, the composition being applied as a dry film or coating a film on a surface of the polymeric article. The individual lens blank is prepared for lamination or coating by application of a selective solvent to the polymeric film, the selective solvent dissolving, dispersing or otherwise removing the protective polymeric film but neither reacting with, etching or dissolving the composition of the polymeric article. The solvent even may comprise water or aqueous solutions (especially pH 8.0 to 12), although C1 to C5 alcohols and alkylene glycol ethers may also be used as the solvent.Type: GrantFiled: May 5, 1999Date of Patent: July 13, 2004Assignee: Vision-Ease Lens, Inc.Inventor: Martin L. Hage
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Patent number: 6749765Abstract: Disclosed are compositions and methods for providing substantially planarized surfaces in the manufacture of electronic devices. Also disclosed are compositions and methods for protecting apertures in the manufacture of electronic devices.Type: GrantFiled: March 27, 2002Date of Patent: June 15, 2004Assignee: Shipley Company, L.L.C.Inventors: Edward W. Rutter, Jr., Peter Trefonas, III, Edward K. Pavelchek
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Patent number: 6743466Abstract: The invention relates to a process for repairing coated substrate surfaces comprising the following successive steps: a) optionally preparing a blemished area to be repaired, b) providing a backing film coated on one side with an uncured or at least partially cured coating layer of a coating composition curable by means of high energy radiation, c) applying the backing film with its coated side onto the blemished area to be repaired, d) irradiating the coating applied in this manner onto the blemished area to be repaired with high energy radiation and e) removing the backing film, wherein the coating is irradiated through the backing film and/or after removing the backing film.Type: GrantFiled: August 3, 2001Date of Patent: June 1, 2004Assignee: E. I. du Pont de Nemours and CompanyInventors: Carmen Flosbach, Karl-Friedrich Doessel, Werner Lenhard, Oliver Reis, Thomas Fey
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Publication number: 20040076745Abstract: Waxes prepared from hydrogenated plant oils, such as palm and soybean, are used to render cellulosic materials resistant to water. Unlike cellulosic materials rendered water resistant with waxes obtained using petroleum-derived or synthetic waxes, the water resistant cellulosic materials prepared using this composition are recyclable using conventional paper recycling methods; the composition is dispersible in warm water solutions. Such water resistant materials are characterized by enhanced moisture barrier properties. The compositions have a low iodine value (between 2-5), and melting points between approximately 120-165 degrees F. (Mettler Drop Point). The wax comprises a triglyceride whose fatty acids are predominantly stearic acid (C18). The composition is used as an additive in the manufacture of wax coated boxes and adhesive compounds used in boxboard packaging and manufacturing operations.Type: ApplicationFiled: September 25, 2003Publication date: April 22, 2004Inventors: Aziz Hassan, Abbas Hassan, Gregory Borsinger
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Patent number: 6713124Abstract: A method of manufacturing a plate or parts thereof of coated rubber, suitable particularly but not exclusively for the soles of footwear, wherein a plate of rubber is coated with at least one colour toning additive and a plate thus coated.Type: GrantFiled: March 29, 2002Date of Patent: March 30, 2004Assignee: Prialpas S.p.A.Inventor: Giuseppe Parolini
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Patent number: 6709692Abstract: The invention provides methods for the treatment of surfaces using surface adsorbing polymers, methods for decreasing the adsorption of organic materials onto the surface of treated devices or vessels, methods for performing fluid operations involving the treatment of surfaces, and apparatus and systems comprising the treated surfaces. Further, the present invention provides a method for treating the surface of microfluidics channel wherein the microfluidics surface is coated for deactivation and wherein this coating can be easily regenerated. The present invention also provides a method for treating the surface of a plastic device. The surface adsorbing polymers of the invention are particularly stable at temperatures and conditions required for biochemical reactions, especially in applications involving temperature cycling or polymerization of polynucleotides or polypeptides.Type: GrantFiled: October 10, 2001Date of Patent: March 23, 2004Assignee: Genset S.A.Inventor: Jan Sudor
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Patent number: 6682773Abstract: A method and coating are provided for temporarily protecting a substrate or article during shipping, handling or storage by applying a removable protective coating over at least a portion of the substrate. The substrate may be flat or curved and may have zero, one or more functional coatings. A plurality of substrates with the protective coating of the invention may be arranged in a shipping container so that the protective coating reduces the possibility of damage to the substrate or optional functional coating. In one embodiment, the protective coating is the evaporation or reaction product of an aqueous coating composition containing a polyvinyl alcohol polymer which may be subsequently removed by aqueous washing, thermal decomposition or combustion. In another embodiment, the protective coating is formed by sputtering a substantially carbon coating onto the substrate. The carbon coating is subsequently removed by combustion.Type: GrantFiled: February 22, 2002Date of Patent: January 27, 2004Assignee: PPG Industries Ohio, Inc.Inventors: Paul A. Medwick, Erin Goodreau, Ernest L. Lawton, James J. Finley, George M. Martin, James P. Thiel, Gary J. Marietti, Roger L. Scriven
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Patent number: 6638563Abstract: The present invention is directed toward the renewable surface treatment of medical devices such as contact lenses and medical implants. In particular, the present invention is directed to a method of modifying the surface of a medical device to increase its biocompatibility or hydrophilicity by coating the device with a removable hydrophilic polymer by means of reaction between reactive functionalities on the hydrophilic polymer which functionalities are complementary to reactive functionalities on or near the surface of the medical device at reaction temperatures of less than about 55° C.Type: GrantFiled: April 22, 2002Date of Patent: October 28, 2003Assignee: Bausch & Lomb IncorporatedInventors: Joseph A. McGee, Paul L. Valint, Jr., James A. Bonafini, Jr., Joseph C. Salamone
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Patent number: 6627280Abstract: To provide a polyester hollow molded product which eliminates the possibility of contaminating its contents, retains excellent transparency after it is used repeatedly by recycling and can be re-used with a substantially unscratched surface. The polyester hollow molded product has a polyester coating layer on the exterior surface and the coating layer can be removed with hot water or alkaline aqueous solution.Type: GrantFiled: July 2, 2001Date of Patent: September 30, 2003Assignee: Teijin LimitedInventors: Minoru Suzuki, Hiroki Nagano
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Patent number: 6599577Abstract: The present invention provides a method of preparation for a degradable, water and oil resistant protective membrane. In the said method, carbon dioxide copolymer is dissolved in a low toxic or non-toxic solvent to form a solution of 3-6 wt % concentration. After standing and filtration to remove metal oxide, the solution is used to coat the surface of the fabricated starch, paper pulp, or straw tableware by spraying or dipping. The residual solvent is removed by drying process and a degradable, water and oil resistant and transparent protective membrane is obtained. The thickness of the protective membrane is in the range of 10-20 micrometer. Metal ion content is lower than 1 ppm. No leakage and deformation of the tableware are observed after the tableware is immerged in water or edible oil for 4 hours at 80° C. The decoloration test by cold edible oil and ethanol is negative. Fungus test gives grade V.Type: GrantFiled: February 8, 2002Date of Patent: July 29, 2003Assignee: Changchun Institute of Applied Chemistry-Chinese Academy of SciencesInventors: Xiaojiang Zhao, Xianhong Wang, Fosong Wang
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Patent number: 6599559Abstract: The present invention is directed toward the renewable surface treatment of medical devices such as contact lenses and medical implants. In particular, the present invention is directed to a method of modifying the surface of a medical device to increase its biocompatibility or hydrophilicity by coating the device with a removable hydrophilic polymer by means of reaction between reactive functionalities on the hydrophilic polymer which functionalities are complementary to reactive functionalities on or near the surface of the medical device. The present invention is also directed to a contact lens or other medical device having such a surface coating.Type: GrantFiled: April 3, 2000Date of Patent: July 29, 2003Assignee: Bausch & Lomb IncorporatedInventors: Joseph A. McGee, Paul L. Valint, Jr., James A. Bonafini, Jr.
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Patent number: 6572727Abstract: A method produces adhesive closing parts having adhesive closing elements made of plastic materials. The elements interact with corresponding adhesive closing elements of a second adhesive closing part to form an adhesive closure. The adhesive closing part having the adhesive closing elements is applied, at least in part, with a coating. The thickness of the coating is chosen such that it ensures subsequent formation of an adhesive closure. Adhesive closures with enhanced application possibilities can thus be produced.Type: GrantFiled: June 30, 2000Date of Patent: June 3, 2003Assignee: Gottlieb Binder GmbH & Co.Inventor: Axel Schulte
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Patent number: 6558733Abstract: An implantable prosthesis, for example a stent, is provided having one or more micropatterned microdepots formed in the stent. Depots are formed in the prosthesis via chemical etching and laser fabrication methods, including combinations thereof. They are formed at preselected locations on the body of the prosthesis and have a preselected depth, size, and shape. The depots can have various shapes including a cylindrical, a conical or an inverted-conical shape. Substances such as therapeutic substances, polymeric materials, polymeric materials containing therapeutic substances, radioactive isotopes, and radiopaque materials can be deposited into the depots.Type: GrantFiled: October 26, 2000Date of Patent: May 6, 2003Assignee: Advanced Cardiovascular Systems, Inc.Inventors: Syed F. A. Hossainy, Li Chen
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Patent number: 6503630Abstract: A glass article provided with an organic functional film on a surface thereof of the present invention is characterized in that a coating film removable with a solvent is formed on at least a portion of the functional film. A method for handling a glass article with a handing tool of the present invention is characterized in the a glass article is handled with a handling tool via a coating film removable with a solvent between a surface of the tool in contact with the glass article and a surface of the glass article.Type: GrantFiled: July 9, 2001Date of Patent: January 7, 2003Assignee: Nippon Sheet Glass Co., LTDInventors: Toyoyuki Teranishi, Hisashi Ogawa, Hiroaki Kobayashi, Jun Hasegawa, Kazuhiro Doushita, Hiroaki Yamamoto
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Patent number: 6471985Abstract: In one embodiment, the present invention relates to a method of treating a wound, involving applying to the wound a room temperature vulcanizing silicone composition comprising a crosslinkable polymer, a crosslinking agent, and a catalyst; permitting the room temperature vulcanizing silicon composition to cure thereby forming a membrane having a thickness from about 0.1 mm to about 5 mm; and removing the membrane from the wound after at least about 1 day.Type: GrantFiled: June 4, 1999Date of Patent: October 29, 2002Inventors: Bahman Guyuron, Michael Doliveck
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Patent number: 6464797Abstract: A method for use in two-components electrostatic image developers is disclosed, in which secure separation of a carrier coating resinous materials from a core magnetic material is achieved without affecting the properties of the core materials through process steps benign to the environment in super- or sub-critical water compositions under the conditions of a temperature of 300° C. or more and a pressure of 20 MPa. The core magnetic material is subsequently recycled for forming carrier. This method may also be useful for processing waste including magnetic materials with silicone resin coating.Type: GrantFiled: July 28, 2000Date of Patent: October 15, 2002Assignee: Ricoh Company, Ltd.Inventors: Kunitoshi Sugiyama, Yoshihiko Itoh, Hideyuki Santoh, Kunio Arai, Tadafumi Ajiri
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Patent number: 6458887Abstract: The method includes the steps of: preparing an organic mixture of oil, monomers selected among acrylic acid—and methacrylic acid esters and at most 25% of an acrylic or methacrylic monomer having an acide, amide, amine or epoxy group; placing the mixture in mini-emulsion in an aqueous phase in the presence of a co-solvent, preferably of the polyalkylene glycol type; and copolymerising the monomers in emulsion. When the emulsion is applied in a thin coating on a metal surface, it provides simultaneously a dry appearance, efficient protection and a pre-lubricating effect.Type: GrantFiled: May 21, 2001Date of Patent: October 1, 2002Assignee: UnisorInventors: Philippe Legros, Agnès Calleja, Yves Sully, Gérard Riess
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Patent number: 6344236Abstract: The aqueous dispersion of a peelable coating composition of the present invention is (a) a mixture containing 5-40% by weight of an emulsion of an acrylic copolymer having a glass transition temperature (hereinafter referred to as “Tg”) of not lower than 40° C., and 95-60% by weight of an emulsion of another acrylic copolymer having a Tg ranging from −20° C. through 5° C. The acrylic copolymer emulsion mixture (b) contains ethylenically unsaturated vinyl monomers having acid value in a total amount of 0.5-1.0% by weight, and (c) at least one of the acrylic copolymer emulsions is an acrylic copolymer which has been polymerized by use of a reactive surfactant, and (d) the particle size of the acrylic copolymer emulsions is not more than 200 nm.Type: GrantFiled: February 2, 2001Date of Patent: February 5, 2002Inventors: Kenji Yamashita, Masayuki Matsuki, Hirotaka Asai, Noritsumi Matsuyama, Hideaki Tojo, Hisashi Kurota, Kensaku Akasaka, Hideki Obara
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Publication number: 20010056143Abstract: In a process for the temporary protection of plastic articles, particularly plastic mouldings, against electrostatic charging and a contamination or dirtying associated therewith, the plastic article is at least partly provided with a coating, which contains an antistatic and which can be washed off with water and/or at least one organic solvent. The antistatic is in particular an electrically conductive, organic polymer. The coating is in particular applied to the plastic article in the form of a solution. The invention also covers a composition, particularly a solution, which contains at least one antistatic and at least one solvent. The antistatic is in particular an electrically conductive, organic polymer, whilst the solvent is in particular a mixture of water and organic solvents.Type: ApplicationFiled: July 6, 1999Publication date: December 27, 2001Inventors: RAMONA BAUMGAERTEL, WALTER MAIER, JUERGEN ORTMEIER
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Patent number: 6319548Abstract: A cohesive coating composition (16) having differential adhesion properties is applied to window glass (12) without regard to covering adjacent trim material (14) which is to be subsequently painted. The DAC (differential adhesion composition) coating (16) is characterized by high adhesion to wood, metal, plastics and painted surfaces and at the same time by selective adhesion to glass-like surfaces, so that the coating composition (16) may be easily scraped, peeled, or otherwise lifted from the glass (12), together with any paint overlay thereon, after the painting operation of the window frame (14) is completed. When subjected to sheer forces of pulling and scraping, the cohesive properties of DAC coating (16) when considered in combination with a relatively low adhesion to glass, allows the coating (16) to be removed in long continuous strips rather than fracturing into small pieces.Type: GrantFiled: June 7, 1995Date of Patent: November 20, 2001Assignee: The Trimex CompanyInventor: Walter VanWinckel
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Patent number: 6210446Abstract: Carpet masking film is reliably and removably applied to used carpet of unknown condition. In a pretreatment, the carpet is cleaned by physical separation of visible debris, followed by chemical or solvent cleaning of grease and soluble factors, restoring the carpet to a clean appearance. A primer layer is applied over the clean carpet fiber in quantity sufficient to establish a barrier and separation layer on top of the carpet fiber. Subsequently, a sprayed adhesive layer is applied over the primer layer. A carpet masking film is applied over the surface of the sprayed adhesive. The masking film may carry its own adhesive layer, which is applied to the sprayed adhesive to create a bonded sandwich structure that is removable as a unit with the masking film.Type: GrantFiled: October 21, 1999Date of Patent: April 3, 2001Inventor: Ryan K. Elliott
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Patent number: 6203846Abstract: Apparatus and process for marking a surface with a highly visible and substantive mark comprising mixing a dry granular, free-flowing superabsorbent polymer powder with liquid, preferably water, and dye to form a semi-solid gel and depositing the gel onto the surface to be marked. The marking apparatus comprises a chamber for mixing the gel and a ram used to eject the gel from the chamber without excess mechanical agitation and without causing significant breakdown of the gel. The dye makes the gel very visible, the bulk of the gel makes it more easily visible, the nature of the gel makes it temporary; easily dispersed with time, sunlight or water.Type: GrantFiled: March 16, 1999Date of Patent: March 20, 2001Assignee: Her Majesty the Queen in right of Canada, as represented by the Minister of National Defence of Her Majesty's Canadian GovernmentInventors: Robert O. Ellingson, Stephen G. Penzes, Mick Saruwatari, Kevin Saruwatari, Craig Poulsom
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Patent number: 6162492Abstract: The description relates to a process for producing a multi-layer correcting and/or marking material. In said process, a film is applied to a substrate which can be released therefrom and in particular contains a dye and/or pigment. A further layer containing an adhesive is then applied over the film thus obtained. The removable film is applied in the form of an aqueous suspension containing a brittle and a film-forming binder. The process makes it possible to dispense with organic solvents. A correcting or marking agent thus produced exhibits good tear-off properties.Type: GrantFiled: July 21, 1998Date of Patent: December 19, 2000Assignee: Citius Burotechnik GmbHInventor: Krishnamoorthy Narayanan
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Patent number: 6156072Abstract: This invention relates to a method of manufacturing a fabric for ink jet printing and to an ink jet printing method for imparting to the fabric a clear and sharp image free from ink oozing in ink jet printing. Specifically, it relates to a method of manufacturing a fabric for ink jet printing which is characterized in that an aqueous treatment solution having a water-insoluble solvent dispersed or emulsified in an aqueous polymer solution is imparted to the fabric and dried; and to an ink jet printing method characterized in that the ink jet printing is made with the ink jet printing fabric used and that after developing, the pretreatment agent is removed by washing the fabric.Type: GrantFiled: August 1, 1994Date of Patent: December 5, 2000Assignee: Toray Industries, Inc.Inventors: Hiromi Usui, Yutaka Masuda, Nobuyoshi Handa
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Patent number: 6124044Abstract: Methods are provided for protecting exterior surfaces of automobiles and other products, or components of products, against abrasion, abrasive dust, water, acid rain, etc. The methods involve applying to a surface a protective coating composition comprising an emulsion selected from the group consisting of a vinyl-acrylic copolymer emulsion and a vinyl acetate-ethylene emulsion. The emulsion is dried to form a water-resistant protective coating that can be removed from the underlying surface by peeling when no longer desired.Type: GrantFiled: October 27, 1995Date of Patent: September 26, 2000Assignee: Cal-West Equipment Company, Inc.Inventor: Ronald Swidler
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Patent number: 6109748Abstract: Disclosed is a lens wafer suitable for use in preparing a laminated lens which wafer has a coating on at least one surface thereof in the form of a peelable protective film.Type: GrantFiled: January 26, 1995Date of Patent: August 29, 2000Assignee: Sola International, Inc.Inventors: David P. Spector, A. N. Sunder Ram
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Patent number: 6106889Abstract: Articles such as medical devices are selectively coated with a lubricious coating. A temporary coating, formed from an aqueous solution of a water-soluble polymer of low to moderate molecular weight, is painted onto those portions of the article which are to remain free of any coating in the final product. Then, the entire article is coated with a material which forms a lubricious coating. The article is then soaked in water to loosen the coatings at the locations at which the temporary coating was applied. The coatings are cleanly removed from those locations, leaving an article with a lubricious coating in some portions, and which is uncoated in the remaining portions. The process can be used in coating portions of catheters, surgical gloves, contact lenses, and any other articles which require a lubricious coating only on a portion of the surface of the article.Type: GrantFiled: June 11, 1998Date of Patent: August 22, 2000Assignee: Biocoat IncorporatedInventors: Ellington M. Beavers, Elizabeth G. Pervin
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Patent number: 6068934Abstract: The present invention provides a sheet molding compound consisting in a sandwich structure comprising a central layer of reinforced uncured heat hardenable sheet molding compound; and two outer layers of a release film having low permeability to hydrocarbons comprising at least one layer (i) of a polyamide/polyolefin alloy having a polyamide matrix and at least one layer (ii) of a polyolefin.Type: GrantFiled: January 12, 1999Date of Patent: May 30, 2000Assignee: Elf Atochem S.A.Inventors: Franck Vandekerckhove, Alain Bouilloux, Regis Jacquemet, Bruno Echalier
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Patent number: 6054176Abstract: A process for making PU air permeable nubuck sheets includes coating a separable release substrate material such an cloth, plastics, or paper with a polyurethane (PU) resin preparation before disposing the same in an impregnation tank to allow the PU resin to congeal into a sheet of minute pores attached to the release substrate material. The release substrate material together with the sheet is soaked in a wash tank to rinse off residual dimethyformamide (DMP) A beck surface of the release substrate material is coated with a water soluble resin (which may later dissolve in water and then be rinsed off) and the release substrate material is put into an oven to dry and then removed to a grinder for processing into a nubuck sheet with the feel and visual characteristics of real nubuck. The nubuck sheet is washed in a wash tank to rinse off the water soluble resin, dried, subjected to surface finishing, and than separated from the release substrate material to obtain a PU air permeable nubuck sheet.Type: GrantFiled: June 8, 1999Date of Patent: April 25, 2000Assignee: Chifa Leather Corp.Inventors: Ping-Hung Kuo, Lung-Chieh Hsieh
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Patent number: 6013323Abstract: The present invention relates to an aqueous based, gelled silicone compositions, more particularly waxes and protectants, which are substantially free of volatile organic solvents. The silicone gel wax is useful for protecting a variety of painted surfaces, particularly painted metal surfaces such as car exteriors. The silicone gel protectant is useful for protecting and enhancing the appearance of vinyl, leather, rubber and plastic surfaces such as found in car interiors, car trim and car bumpers.Type: GrantFiled: October 30, 1998Date of Patent: January 11, 2000Inventors: Donna W. Klayder, David A. Lupyan
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Patent number: 5976450Abstract: The invention relates to a preform for a polyester bottle, having applied to its surface a coating of a material that lowers the coefficient of friction of the polyester and to a method of producing a preform for a polyester bottle, provided with a coating of a material that lowers the coefficient of friction of the polyester used, comprising producing a preform by means of extrusion or injection moulding, followed by applying said coating to the preform.Type: GrantFiled: July 13, 1992Date of Patent: November 2, 1999Inventor: Hubertus Mreijen
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Patent number: 5976616Abstract: Polyurethane foam pads for use in the topical care and treatment of the skin are disclosed. The polyurethane pads are formed from a polymerized combination of an aqueous mixture having at least one skin conditioning agent (such as Vitamin E or aloe) and a quantity of hydrophilic urethane prepolymer. The skin conditioning agents are incorporated directly into the cell structure of the polyurethane foam pad and are readily released when contacted with water.Type: GrantFiled: October 2, 1998Date of Patent: November 2, 1999Assignee: H.H. Brown Shoe Technologies, Inc.Inventor: Wayne Celia
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Patent number: 5968664Abstract: A method is provided for forming a strippable or dissolvable release coating on the surface of substrate such as a flexible polymeric film or web. The release coating is subsequently coated with a layer of material and then dissolved in a solvent to release the layer. The release coating is made from a copolymer of methylmethacrylate and ethylacrylate or from a homopolymer of polyacrylic acid. Release coatings made of methylmethacrylate and ethylacrylate copolymers having glass transition temperatures of about 60.degree. C. or greater, or made of a ipolyacrylic acid homopolymer having a glass transition temperature of about 100.degree. C. or higher, are also provided. The release coatings provide excellent supporting substrates for the formation of an overcoated metallized layer, are readily strippable in acetone, and can be formed during an in-line process which begins with drawing a flexible film or web from a molten polymeric material.Type: GrantFiled: November 11, 1997Date of Patent: October 19, 1999Assignee: Mitsubishi Polyester Film, LLCInventors: John M. Heberger, Stephen J. Gust, R. Scott Caines
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Patent number: 5965195Abstract: The present invention relates to coating composition, which is suitable for preparing light fast coatings and contains a cosolvent-free, aqueous, anionic dispersion of polyurethane-ureas, the solids content of which contains the reaction product, present at least partially in salt form, ofa) an NCO prepolymer prepared fromi) an aliphatic and/or cycloaliphatic diisocyanate,ii) a macrodiol having a number average molecular weight of 500 to 10,000iii) a 2,2-bis-(hydroxymethyl)alkane monocarboxylic acid andiv) a diol having a molecular weight of 62 to 400, withb) optionally a diamine,c) a monofunctional chain terminating agent,d) water ande) a neutralizing agent,provided that the NCO content of the prepolymer is up to 25% lower than the theoretical value, the entire polyurethane-urea synthesis reaction is performed in the homogeneous phase and no cosolvent having a boiling range of greater than 100.degree. C. is used during the preparation of the dispersion of polyurethane-ureas.Type: GrantFiled: December 11, 1997Date of Patent: October 12, 1999Assignee: Bayer AktiengesellschaftInventors: Hanns-Peter Muller, Horst Gruttmann, Holger Casselmann, Heino Muller, Joachim Petzoldt, Manfred Bock
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Patent number: 5955518Abstract: A heteropolysaccharide--containing glass fiber sizing composition that provides improved application uniformity when applied to hot fibers via a roll coater.Type: GrantFiled: November 21, 1997Date of Patent: September 21, 1999Assignee: Owens Corning Fiberglas Technology, Inc.Inventor: Martin C. Flautt
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Patent number: 5939142Abstract: A method and product for reducing reflected light glare into a human's eyes from the human's cheeks while simultaneously providing a non-verbal communication to others is provided, especially for use by participants in athletic contests. Underneath the human's eyes on the cheeks at a reflective location on the cheeks at which incident direct or indirect light is likely to be reflected into a human's eyes a non-toxic, non-reflective colored and finished material in the form of a predefined clearly demarcated geometric shape is applied. Within a week after the application (typically within less than a few hours after the athletic contest is over) the non-reflective material is removed. The non-reflective material may comprise eye black, applied using a stencil, or it may comprise a temporary tattoo or decal, applied in the conventional manner. The shape preferably is a sports apparel or equipment manufacturer's or distributor's logo and/or letters, or a team name, mascot or logo.Type: GrantFiled: May 11, 1994Date of Patent: August 17, 1999Assignee: Stephen W. ComiskyInventors: Stephen W. Comiskey, Barrett O. Comiskey
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Patent number: 5935673Abstract: To protect the optical surface of optical disc information recording media such as a compact disc (CD) or a digital versatile disc (DVD), that surface is coated with a removable layer of a material that does not significantly alter the optical properties of the disc. Whenever the coating layer may have become damaged, it is removed and replaced with a new layer.Type: GrantFiled: August 8, 1997Date of Patent: August 10, 1999Assignee: WEA Manufacturing Inc.Inventor: William R. Mueller
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Patent number: 5866199Abstract: This invention provides for primer/masking compositions that have differential adhesion properties for glass-like and non-glass surfaces. The compositions are used in a method of applying a finish to a non-glass surface which resides in proximity to a glass-like surface without substantially overcoating the glass-like surface. The method involves applying to the glass-like surface a primer/masking composition comprising a vinyl chloride copolymer emulsion, a coalescer, and a surfactant; applying the finish to the non-glass surface, and removing the primer/masking composition from said glass-like surface.Type: GrantFiled: October 31, 1995Date of Patent: February 2, 1999Assignee: Cal-West Equipment Company, Inc.Inventors: Ronald Swidler, Edward W. Woodhall
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Patent number: 5773077Abstract: A window for use in a convertible top comprises a thin, flexible, optically transparent plastic sheet and a thin, flexible, optically transparent thermoplastic abrasion-protective coating applied to both faces of the plastic sheet. The abrasion-protective coating comprises a weatherable polymer such as an acrylic polymer which is transparent in thin film form and adhered to the plastic sheet as a semi-permanent coating removable by an alkaline water-based cleaning agent. The thin-film form coating provides a level of abrasion protection by preferentially abrading while protecting the underlying clear plastic window from scratching. A preferred coating comprises a water-based emulsion of an acrylic polymer such as an acrylic floor polish diluted with water and applied to the window by a dipping process.Type: GrantFiled: October 10, 1995Date of Patent: June 30, 1998Assignee: Ellay, Inc.Inventor: Stanley Edmond
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Patent number: 5756146Abstract: Copper lines or molybdenum lines on a substrate are inspected for defects by coating a metallized substrate with an inspection layer followed by imaging the substrate, and removing the inspection layer after the imaging. The inspection layer can be a light reflecting metal or a combination of a light reflecting metal and light-absorbing organic compound.Type: GrantFiled: March 12, 1997Date of Patent: May 26, 1998Assignee: International Business Machines CorporationInventors: Kang-Wook Lee, Alfred Viehbeck
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Patent number: 5756214Abstract: A release film comprises a polymeric film substrate and a polymeric abherent layer. The abherent layer comprises a polyurethane resin which is the reaction product of:(i) an organic polyisocyanate,(ii) an isocyanate-reactive polydialkylsiloxane, and(iii) a polymeric polyol.Type: GrantFiled: June 1, 1995Date of Patent: May 26, 1998Assignee: Imperial Chemical Industries PLCInventors: Roger Waldron, Gary Victor Rhoades, John Francis