Organic Base Patents (Class 427/155)
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Patent number: 5741383Abstract: This invention relates to a process for bonding a vehicle window to a vehicle flange comprising the sequential steps of:a) applying a liquid masking composition to a vehicle flange,b) painting the vehicle, and drying or curing the liquid masking composition sufficiently to form a strippable mask;c) removing the mask from the flange; andd) adhesively bonding the vehicle window to the vehicle flange. Such a masking process advantageously eliminates the need for the use of solvent-based primers normally used to prime a painted vehicle flange, and provides a mask which is more easily applied and removed from the flange than masking means which initially comprise a solid substance.Type: GrantFiled: August 18, 1992Date of Patent: April 21, 1998Assignee: Essex Specialty Products, Inc.Inventor: Andrew R. Kneisel
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Patent number: 5739263Abstract: The present invention provides a film adhesive comprising, as the main constituent, a polyimide resin having a glass transition temperature of 350.degree. C. or lower and soluble in organic solvents, which polyimide resin is obtained by reacting at least one of the following acid components (A) and (B)(A) 4,4'-oxydiphthalic acid dianhydride(B) 3,3',4,4'-biphenyltetracarboxylic acid dianhydride and/or 3,3',4,4'-benzophenonetetracarboxylic acid dianhydridewith at least one of the following amine components (C) and (D)(C) a siloxane compound represented by the following general formula (1) and/or 2,2-bis(4-(4-amino-phenoxy)phenyl)propane ##STR1## wherein R.sub.1 and R.sub.2 are each a bivalent aliphatic (C.sub.1-4) or aromatic group; R.sub.3, R.sub.4, R.sub.5 and R.sub.6 are each a mono-valent aliphatic or aromatic group; and k is an integer of 1-20,(D) bis(aminophenoxy)benzene and/or dimethylphenylene-diamineto give rise to ring closure of imide, as well as a process for producing said film adhesive.Type: GrantFiled: January 28, 1994Date of Patent: April 14, 1998Assignee: Sumitomo Bakelite Company LimitedInventors: Tatsuhiro Yoshida, Yoshitaka Okugawa, Toshio Suzuki, Toshiro Takeda, Yushi Sakamoto, Takuya Tochimoto
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Patent number: 5702772Abstract: A method for identifying and protecting activated surface portions of a plastic substrate is provided. The method includes the steps of providing a plastic substrate having one or more activated surface portions and applying a solution containing a water-soluble, organic film-forming substance onto the substrate. The solution coats only the activated portions of the substrate surface. The method further includes the steps of drying the solution to form a temporary protective film on the activated portions of the surface, thereby rendering the activated portions less susceptible to abrasion or disruption during handling.Type: GrantFiled: February 5, 1997Date of Patent: December 30, 1997Assignee: Ford Motor CompanyInventors: Jon M. Skelly, Lawrence F. Wilski
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Patent number: 5700516Abstract: Hot melt wax compositions are described that render fibrous products such as paper, paperboard and corrugated paper containers water-resistant at room temperature, but enable such articles to be repulped and recycled when the coated articles are repulped in a heated nearly neutral to alkaline aqueous medium. The compositions comprise from about 20% to 97.5% by weight of a water-repellent wax that is a solid at 20.degree. C.; from about 2.Type: GrantFiled: October 18, 1996Date of Patent: December 23, 1997Assignee: S. C. Johnson Commerical Markets, Inc.Inventors: Paul E. Sandvick, Calvin J. Verbrugge
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Patent number: 5681399Abstract: A method is disclosed for removing smearing material or filth deposits from a coated surface by means of spraying an aqueous dispersion to form a gel-like film on the surface. The aqueous dispersion comprises a selected amount of highly absorbent and/or water-soluble polymers dispersed in water. The gel-like film is washed down with pressured water with smearing particulate material entrained therewith.Type: GrantFiled: October 11, 1995Date of Patent: October 28, 1997Assignee: Creor CorporationInventor: Ikuo Okano
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Patent number: 5641611Abstract: Items of material are patterned on a substrate by forming a layer of photoresist on the substrate and a layer of metal on the photoresist. The photoresist is patterned to define an opening exposing a portion of the substrate and the metal is patterned to define an aperture smaller than the opening so as to divide the exposed surface of the substrate into shadow areas and a non-shadow area. A first material system is evaporated generally perpendicular to the aperture to form a first organic light emitting diode on the surface of the substrate in the non-shadow area and second and third material systems are evaporated at angles to the aperture to form second and third organic light emitting diodes in the shadow areas. Passivation material is evaporated perpendicularly onto the first diode and at the angle onto the second diode.Type: GrantFiled: August 21, 1995Date of Patent: June 24, 1997Assignee: MotorolaInventors: Chan-Long Shieh, Hsing-Chung Lee
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Patent number: 5618578Abstract: Solvent free liquid masking compositions comprise from about 5 to about 20 percent by weight of an aliphatic polyol; from about 1 to about 20 percent by weight of a plasticizer; from about 0.1 to about 1 percent by weight of a surfactant; and sufficient water to total 100 percent by weight, wherein the masking composition is water-soluble and devoid of volatile organic chemicals; it is devoid of polymer resins other than polyvinyl alcohol in amounts sufficient to render the film water-insoluble and is stain resistant to applied surfaces. A method for protecting selected surfaces from paint in painting operations comprises applying a solvent free liquid masking composition to selected surfaces of an object where paint subsequently applied is not desired; allowing the liquid masking composition to dry, forming a film; painting the object, whereby surfaces carrying the film are protected from the application of paint; and removing the film.Type: GrantFiled: February 16, 1996Date of Patent: April 8, 1997Assignee: Alco Industries, Inc.Inventors: Sally J. Blaine, Kim K. Wilson
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Patent number: 5603992Abstract: This invention provides methods and compositions for the temporary protection of activated plastic surfaces. The methods involve application of protective coating compositions to activated surfaces thereby protecting the surfaces from oxidation, soiling and mechanical damage. The coatings may be easily washed off leaving a clean activated surface suitable for overcoating.Type: GrantFiled: April 18, 1995Date of Patent: February 18, 1997Assignee: Cal West Equipment Company, Inc.Inventors: Edward W. Woodhall, Ronald Swidler
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Patent number: 5604041Abstract: Disclosed is a method of making a free-standing polyimide film. A solution is prepared of a polyamic acid 20 to 98% imidized in an organic solvent and a coating of the solution is applied to a non-stick substrate. The coating is heated to a temperature high enough to evaporate all but 1 to 20 wt % of the solvent and form a film. The film is removed from the substrate and is heated to evaporate the solvent to less than 1000 ppm.Type: GrantFiled: November 14, 1995Date of Patent: February 18, 1997Inventor: Jin-o Choi
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Patent number: 5587009Abstract: The invention is methods and compositions for removing bonding agents from the hard surfaces of machinery and, in its most preferred mode packaging equipment. The release composition comprises lecithin and a hydrophobic carrier. The method comprises the steps of applying a release composition to the surfaces of the packaging equipment. The packaging equipment is then used. Any bonding agent deposited on the treated areas of the packaging equipment may then be removed. The invention is applicable to any number of package and container manufacture environments including package assembly, package sealing, product sealing, and labeling.Type: GrantFiled: June 12, 1995Date of Patent: December 24, 1996Assignee: Ecolab Inc.Inventors: Michael E. Besse, Cynthia L. Ross, Helen A. Kleaver
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Patent number: 5587202Abstract: Hot melt polymer/fatty acid compositions are described that render fibrous products such as paper, paperboard and corrugated paper containers water-resistant at room temperature, but enable such articles to be repulped and recycled when the coated articles are repulped in a heated nearly neutral to alkaline pH aqueous medium.Type: GrantFiled: December 14, 1995Date of Patent: December 24, 1996Assignee: S. C. Johnson & Son, Inc.Inventors: Paul E. Sandvick, Calvin J. Verbrugge
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Patent number: 5580605Abstract: At least one monomolecule film is formed on a transparent substrate surface directly or via a protective film. The monomolecule film is formed with chemical coupling of chlorosilane surface active compound, for example, of the formula:F(CF.sub.2).sub.m (CH.sub.2).sub.n SiR.sub.q X.sub.3-qwhere m is an integer of from 1 to 15, n is an integer of from 0 to 15 provided that the total of m and n is an integer of from 10 to 30 and R is an alkyl or an alkoxyl group, orF(CF.sub.2).sub.m' (CH.sub.2).sub.n' A(CH.sub.2).sub.p SiR.sub.q X.sub.3-qwhere m' represents an integer ranging from 1 to 8, n' represents an integer ranging from 0 to 2, p represents an integer ranging from 5 to 25, q represents an integer ranging from 0 to 2, X represents a halogen atom or an alkoxyl group, R represents an alkyl or an alkoxyl group, and A represents --O--, a --COO-- or --Si(CH.sub.3).sub.2 --. The transparent substrate such as glass is made hydrophobic and free of contamination.Type: GrantFiled: May 1, 1995Date of Patent: December 3, 1996Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kazufumi Ogawa, Norihisa Mino, Mamoru Soga
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Patent number: 5567245Abstract: A method for separating a polymer such as polypropylene from a layered plastic material that includes a layer of polypropylene together with a layer of vinylidene chloride is provided. The layered plastic material is agitated in a bath of water and sand to wet the surfaces of the material. The layered plastic material is then agitated in a wash liquor of hot water, caustic, sand, and a surfactant to crack and strip the vinylidene chloride material from the polypropylene material. Sufficient caustic is included in the wash liquor to raise the pH of the wash liquor to pH 12 or greater. Agitation is by reversibly rotating a perforating basket containing the layered plastic material and the wash liquor at 10-20 revolutions per minute and by blowing air into the basket. The wash liquor and stripped vinylidene chloride are then drained away from the polypropylene. The polypropylene is rinsed with water to wash away residual wash liquor and stripped vinylidene chloride.Type: GrantFiled: November 22, 1994Date of Patent: October 22, 1996Inventor: Dana L. Watson
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Patent number: 5523125Abstract: A process for providing indicia to the surface of an article. The process comprising the steps of: providing an article having material initially forming at least a portion of its exterior surface; coating at least part of the material whereat indicia is to be provided to thereby form a film; contacting, with radiation from a radiation beam, indicia areas of the film intended to be provided with indicia, the radiation thereby removing the film and modifying the surface of the material of the indicia areas and also forming a mask in the non-indicia areas of the film; applying an ink to the indicia areas thereby forming the indicia on the surface; drying the ink; and removing the film.Type: GrantFiled: July 25, 1995Date of Patent: June 4, 1996Assignee: Lisco, Inc.Inventors: Thomas J. Kennedy, Mark L. Binette, Michael Konieczny
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Patent number: 5499756Abstract: A method of applying a tacking agent to a printed circuit board. The printed circuit board (10) has a number of solder pads (12), and each solder pad is preclad with a layer of solder (14) between 0.02 and 0.3 mm thick. A plastic film (16) is temporarily adhered to the printed circuit board by a pressure sensitive adhesive. The plastic film has a number of apertures (22) that correspond to the solder pads, and is positioned so that the apertures in the film expose the solder coated pads. There is a breakaway tab (20) on the plastic film that is used to peel the film from the printed circuit board in a later operation. The film is roller coated with a high viscosity tacking agent (30) so that a layer of the tacking agent is applied to the exposed interconnect pads. The plastic film is then peeled cleanly away from the printed circuit board using the breakaway tab, leaving the tacking agent only on the solder pads.Type: GrantFiled: February 3, 1995Date of Patent: March 19, 1996Assignee: Motorola, Inc.Inventors: Kingshuk Banerji, Edwin L. Bradley, III, Francisco Da Costa Alves
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Patent number: 5494702Abstract: Solvent free liquid masking compositions comprise from about 5 to about 20 percent by weight of an aliphatic polyol; from about 5 to about 20 percent by weight of a plasticizer; from about 0.1 to about 1 percent by weight of a surfactant; and sufficient water to total 100 percent by weight. A method for protecting selected surfaces from paint in painting operations comprises applying a solvent free liquid masking composition to selected surfaces of an object where paint subsequently applied is not desired; allowing the liquid masking composition to dry, forming a film; painting the object, whereby surfaces carrying the film are protected from the application of paint; and removing the film.Type: GrantFiled: June 21, 1994Date of Patent: February 27, 1996Assignee: Alco Industries, Inc.Inventors: Sally J. Blaine, Kim K. Wilson
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Patent number: 5482733Abstract: A method for controlling and/or eliminating harmful lawn grass insects is disclosed, which comprises: foaming a surfactant composition having a total content of components present of from 0.2 to 50% by weight and comprising at least one surfactant selected from an anionic sulfonate, a higher fatty acid containing from 8 to 30 carbon atoms and salts of the higher fatty acid and a thickener; and applying the foam onto the surface of lawn grass in a thickness effective for controlling and/or eliminating the harmful lawn grass insects.Type: GrantFiled: August 1, 1994Date of Patent: January 9, 1996Assignee: Hodogaya Chemical Co., Ltd.Inventors: Toshiyuki Abe, Masayoshi Hatsukade, Naomichi Nakashima
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Patent number: 5429839Abstract: Coatings of hydrophilic organic polymers such as polyvinyl alcohol are grafted to substrates formed from hydrophobic organic polymers and polyorganosiloxanes by exposing the surface of the substrate to an aqueous solution of the hydrophilic poller in the presence of a solubilized compound of tetravalent cerium that preferably contains hydroxyl or amino groups as ligands.Type: GrantFiled: July 19, 1993Date of Patent: July 4, 1995Assignee: Mizu SystemsInventors: Daniel Graiver, Toshiyuki Okada, Samir D. Serrano
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Patent number: 5429838Abstract: In a method for producing intraocular lenses with improved optical properties, applying to the optical part of the lens a coating to protect the surface during one or more processing steps which are carried out under conditions so that the protective coating is essentially insoluble and remains adhered to the lens, and removing the coating by changing the conditions which make the coating adhere to the lens.Type: GrantFiled: October 5, 1993Date of Patent: July 4, 1995Assignee: Pharmacia ABInventors: Per Mansson, Johannes Hermans
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Patent number: 5418007Abstract: This invention provides a composite article having discrete microstructures partially encapsulated within a layer. A method of making the same is also provided. The article of the present invention is useful for visible radiation absorbing devices, such as, for example, selective solar absorbers, flat plate solar collectors, solar absorption panels, and solar cells.Type: GrantFiled: August 1, 1994Date of Patent: May 23, 1995Assignee: Minnesota Mining and Manufacturing CompanyInventor: Mark K. Debe
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Patent number: 5418006Abstract: In the method for coating substrate surfaces which are not water-absorbent, the substrate surfaces are coated with an aqueous composition which comprises an aqueous solution, dispersion and/or emulsion of film-forming substances and water-repellent substances, in which the coating can be removed by treatment with water. The method is also suitable for coating porous, water-absorbent substrates if the substrates are treated with a water-repellent prior to coating with the aqueous composition.Type: GrantFiled: January 25, 1993Date of Patent: May 23, 1995Assignee: Wacker-Chemie GmbHInventors: Michael Roth, Christa Blamlhuber, Gunther von Au, Loher Karl-Heinz
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Patent number: 5408564Abstract: A method of making a strippable tight buffered cable is disclosed, the cable comprising an optical waveguide fiber, a first protective coat circumscribing and in contact with the outer surface of the optical waveguide an interfacial layer circumscribing and in contact with the external surface of the first protective coating composed of particles of solid lubricant held together with a cross-linked film-forming binder, and a second protective coating circumscribing the external surface of the interfacial layer. Apparatus for making the strippable cable is also disclosed.Type: GrantFiled: June 27, 1994Date of Patent: April 18, 1995Assignee: Siecor CorporationInventor: Gregory A. Mills
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Patent number: 5407535Abstract: The invention relates to a new lottery ticket paper for the manufacture of different kinds of lottery tickets, especially of the "instant lottery ticket" type, and a method of manufacturing said tickets. The lottery ticket paper is characterized in that it comprises a colored, opaque base paper coated on both sides with a composition comprising at least one pigment, a filler, a binder solution, and optionally viscosity regulating agents and some kind of security element. The lottery ticket paper is protected against see-through and various kinds of forgery. It is an environmentally pleasing, nonexpensive and from the production-technical point of view suitable alternative to existing foil-laminated lottery ticket papers.Type: GrantFiled: May 24, 1993Date of Patent: April 18, 1995Assignee: ABTumba BrukInventor: Erik Hansell
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Patent number: 5387434Abstract: A method of treating surfaces to facilitate removal of graffiti comprises applying a coating of anti-graffiti material to a surface to form a graffiti barrier on the surface.. The anti-graffiti material is substantially free of organic solvents and comprises a water-based material containing waxes, sodium silicate, rosins, gums or combinations thereof. To remove graffiti applied to the coated surface, the surface is power washed with heated pressurized water having a pressure greater than 250 psi, and preferably in excess of 1000 psi. The surface is power washed, as needed, to remove graffiti, and following each one, two or several power washings, the anti-graffiti material is re-applied to the surface.Type: GrantFiled: September 1, 1993Date of Patent: February 7, 1995Assignee: Bat Technologies Inc.Inventor: Robert H. Black
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Patent number: 5362515Abstract: An improved process for producing woven textiles, comprising:a) sizing yam to be woven, with an aqueous solution of a poly(vinyl alcohol) copolymer containing from about 7 to 15 weight percent units derived frown a comonomer selected from the group consisting of an alkyl acrylate, an alkyl methacrylate, a dialkyl fmnarate and a dialkyl maleate, wherein the alkyl group contains from 1 to 8 carbon atoms;b) weaving the yam to produce woven textile;c) desizing the resulting woven textile with an aqueous caustic solution having a concentration between 0.001 and 10 weight percent caustic material in water, andd) optionally washing the caustic desized woven textile with water.The sizes are very readily desizable, even when the woven textile fabrics have been heat treated.Type: GrantFiled: February 28, 1994Date of Patent: November 8, 1994Assignee: E. I. Du Pont de Nemours and CompanyInventors: Richard A. Hayes, George D. Robinson
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Patent number: 5322708Abstract: A process for manufacturing a self-adhesive, dry-transfer decal at a speed greater than or equal to 2000 decals per hour comprising applying at least one color layer onto a side of a carrier paper with a release value of 40 to 80 cN as measured by 20 mm width TESA-tape K7476 at 40.degree. C., to produce an image which adheres to the carrier paper with a release value of approximately 8 to 12 cN as measured by 20 mm width TESA-tape 651 having a measure range of 2N and a tear-off speed of 500 mm/minute, and applying an adhesive layer onto said at least one color layer such that the adhesive layer is congruent with the image.Type: GrantFiled: April 25, 1991Date of Patent: June 21, 1994Inventor: Juergen Eissele
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Patent number: 5312517Abstract: A coating layer 5 made of a fluorine-containing polymer and having a thickness of 20 to 700 nm is formed on a surface of a nozzle forming member made of plastics which can be ablated by an excimer laser. Then, the nozzle forming member 1 is irradiated from its back by the excimer laser to generate high-density excited species in the irradiated portion. Using the force owing to the decomposition and scattering of the excited species, a nozzle 7 is formed and the coating layer 5 on the nozzle 7 is removed.Type: GrantFiled: June 24, 1993Date of Patent: May 17, 1994Assignee: Seiko Epson CorporationInventor: Yasuhiro Ouki
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Patent number: 5279785Abstract: A sintered or bonded permanent magnet formed from a material consisting mainly of iron, particularly a Nd-Fe-B alloy, and having a high corrosion resistance has a surface coated with a resin obtained by the polycondensation of tannic acid, phenols and aldehydes. A bonded magnet is also made from a powder of any such material composed of particles coated with any such resin.Type: GrantFiled: July 30, 1992Date of Patent: January 18, 1994Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Fumihito Mohri, Takuji Nomura, Shougo Miki
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Patent number: 5271959Abstract: A method of protecting vent hoods and exhaust ductwork from buildup of grease and grime comprising coating the vent hoods and exhaust ductwork with a thin coating of a grease repelling removable non-hygroscopic composition.Type: GrantFiled: November 12, 1991Date of Patent: December 21, 1993Assignee: S. C. Johnson & Son, Inc.Inventors: Andrew M. Bober, John Kawa
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Patent number: 5256445Abstract: A method for buffing an annulation comprising a step of rotating the annulation while holding the annulation, a step of partially grinding a surface of the annulation with a grinder unit, and a step of applying blue paint to the ground surface of the annulation. A buff apparatus used therefor comprises an annulation holding section, a grinder unit having a rough grinder and a finishing grinder, and a paint unit. The rough grinder and the finishing grinder on the grinder unit are driven by one cooperating shaft, and the grinder unit is capable of pivoting by 180 degrees. The paint unit is a transfer-roller-type and applies blue paint only to the ground surface.Type: GrantFiled: May 29, 1992Date of Patent: October 26, 1993Assignee: Sumitomo Rubber Industries, Ltd.Inventors: Yasushi Nojiri, Takanori Kohda
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Patent number: 5232758Abstract: A non-hardening, solvent removable hydrophobic conformal coating is provided for electronic devices, such as printed circuit boards. The coating material comprises a metal alkyl benzyl sulfonate, together with a carrier and a solvent. The metal alkyl benzyl sulfonate may include compounds such as calcium eicosanylbenzyl sulfonate. The carrier may be any oxidized hydrocarbon, such as lauryl ethanoxylate, for example, and the solvent may be any low boiling aliphatic hydrocarbon. Though the coating is impervious to water, it may be readily and selectively removed using a small quantity of a non-polar organic solvent, such as mineral spirits or terpenes. Thus, although the electronic device is protected from corrosion, electromigration and physical harm by the coating, the coating may be easily, quickly and selectively removed in the event a component needs replacement, repair or adjustment.Type: GrantFiled: September 4, 1990Date of Patent: August 3, 1993Assignee: Motorola, Inc.Inventors: Frank J. Juskey, Anthony B. Suppelsa, Kenneth M. Wasko
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Patent number: 5215576Abstract: A scratch-off coating composition and method for application of the coating to lottery forms and the like employs a water based dispersion of acrylic resin, at approximately equal proportions of resin and water, by weight. The dispersion is adjusted to a pH greater than 7.0, and preferably a surfactant is added as a wetting, defoaming and/or dispersing agent. A pigment of metallic particles such as aluminum paste is added, together with a powdered filler such as calcium carbonate, at about 5 to 25% by weight of the coating composition. The composition can be applied in successive layers, including outer layers of relatively higher proportions of resin for improving wet rub resistance. For the outer surface layers, a number of ink formulations are disclosed.Type: GrantFiled: July 24, 1991Date of Patent: June 1, 1993Assignee: GTECH CorporationInventor: Bryan W. Carrick
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Patent number: 5143949Abstract: A strippable coating composition is shown for use as a temporary protective coating on a variety of substrates. The composition includes a water based polymeric emulsion which is dispersed in an aqueous carrier to form a stable emulsion. Release aids are incorporated in the composition which allow the protective coating to be removed by peeling or washing off with water.Type: GrantFiled: December 2, 1991Date of Patent: September 1, 1992Assignee: Groco Specialty Coatings CompanyInventors: George W. Grogan, Robert H. Boyd
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Patent number: 5135721Abstract: A sterilization apparatus comprises a housing provided with an opening through which an object may be inserted, and an ultraviolet radiation generator at least partially inside the housing for irradiating with bacteriocidal radiation an object inserted into the housing through the opening. A liquid spraying mechanism or gas injection mechanism is disposed at least partially inside the housing for applying to the inserted object a sterilizing agent. A coating or cover forming mechanism is also provided at least partially inside the housing for forming on the inserted object a protective covering. A control unit controls the activation of the radiation generator, the sterilizing mechanism and the coating mechanism.Type: GrantFiled: January 18, 1990Date of Patent: August 4, 1992Assignee: Net/Tech International, Inc.Inventor: Daniel D. Richard
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Patent number: 5132138Abstract: The present invention discloses a novel process for sealing, restoring and protecting wood surfaces. The process involves application of a reactive silicone compound in solvent to the surface being treated, the evaporation of solvent which starts a polymerization reaction of a silanic hydrogen containing silicone polymer on and within the surface of the wood. The silanic hydrogen containing silicone, which is delivered to the surface of the wood in a solvent, penetrates the wood surface. The evaporation of the solvent initiates the polymerization. The polymer matrix is built up around and within the wood fiber which the solvent solution has penetrated. The polymer fills the surface of the wood making a clear interlocked elastomeric surface which restores the appearance and provides the desired durability.Type: GrantFiled: August 30, 1991Date of Patent: July 21, 1992Assignee: George TrifonInventors: George Trifon, Anthony O'Lenick, Jr.
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Patent number: 5124366Abstract: A process for the manufacture of a rigid, closed-cell polyisocyanurate foam from a foam forming mixture comprising an organic polyisocyanate, a polyol, a blowing agent, and a catalyst, utilizing a polyester polyol as the sole polyol, and chlorodifluoromethane or a mixture of chlorodifluoromethane and at least one co-blowing agent as the blowing agent.Type: GrantFiled: November 5, 1990Date of Patent: June 23, 1992Assignee: The Celotex CorporationInventors: David G. Gluck, John P. Oliver
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Patent number: 5114513Abstract: An optical device manufacturing method includes a step of accumulating an optical device inorganic material on a stamper by use of a vacuum thin-film growing method, and a step of removing the accumulated material from the stamper, thereby producing an optical device.Type: GrantFiled: October 25, 1989Date of Patent: May 19, 1992Assignee: Omron Tateisi Electronics Co.Inventors: Hayami Hosokawa, Tsukasa Yamashita
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Patent number: 5114735Abstract: A scratch-off game piece which contains a fragrance which is released during the game play action. The game piece is constructed by application of layers of fragrance containing material and scratch-off material over a support layer of printed sheet material such that when the scratch-off material is removed by the player, the fragrance containing capsules are ruptured and fragrance is released.Type: GrantFiled: December 11, 1990Date of Patent: May 19, 1992Assignee: Webcraft Technologies, Inc.Inventors: Louis Rua, Jr., Carl Schaab
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Patent number: 5106561Abstract: An ultra-thin, self-assembling molecular film has ordered amphiphilic molecules that are oriented relative to one another in two directions. The improved method of the present application makes it possible to form the film in a continuous fashion with the ordered molecules arranged in oriented crystals.Type: GrantFiled: January 16, 1991Date of Patent: April 21, 1992Assignee: NanoFilm CorporationInventors: Brij D. Singh, Scott E. Rickert
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Patent number: 5082691Abstract: A method of removing scratches and/or abrasions from the surface of a plastic lens which comprises providing a plastic lens which has one or more surface scratches and/or abrasions, applying a wax composition which contains a pigment to the surface of the lens resulting in the formation of a coating on at least the abraded and scratched portions of said surface and removing said wax coating by wiping it from said surface, whereby said surface is rendered substantially more tolerable to the user.Type: GrantFiled: August 28, 1990Date of Patent: January 21, 1992Inventor: Richard L. Levy
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Patent number: 5073433Abstract: A thermal barrier coating for substrates comprising zirconia partially stabilized by yttria and having a density greater than 88% of the theoretical density with a plurality of vertical macrocracks homogeneously dispersed throughout the coating to improve its thermal fatigue resistance. The invention also discloses a process for producing the thermal barrier coating.Type: GrantFiled: October 20, 1989Date of Patent: December 17, 1991Assignee: Technology CorporationInventor: Thomas A. Taylor
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Patent number: 5063084Abstract: A process for protecting vehicle windshields and chrome-plated, painted and other vehicular surfaces with a coating which prevents adherence of insects impacting with such surfaces and any chemical reaction of bug remains therewith. The coating is water soluble and contains an oil barrier, surfactant, hydrophilic agent and lipophilic agent, among other ingredients. The impacted insect remains are easily removable by washing off the coating with water.Type: GrantFiled: May 31, 1990Date of Patent: November 5, 1991Inventor: Riley H. Nelson
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Patent number: 5049186Abstract: Water-based compositions of the water-based wax emulsion type for protecting coating films are provided by emulsifying and dispersing, as essential components, [A] a disperse phase component and [B] an emulsifier component in water. The disperse phase component [A] is formed of (a) a petroleum fraction wax having a melting point of 50.degree.-90.degree. C., (b) an oxygen-containing wax having an oxygen content of at least 3.0 wt. % and a melting point of 50.degree.-85.degree. C., (c) an ethylene/.alpha.-olefin copolymer having a number average molecular weight of 2,000-20,000, and (d) a higher fatty acid metal salt and/or a metal-modified hard wax. The compositions can form, without the need for a solvent, strong barrier coats which are resistant to rain, moisture, sunlight and air pollutants even under severe environmental conditions. After these barrier coats are used, they can be easily removed with warm water containing a small amount of a solvent or steam.Type: GrantFiled: March 16, 1990Date of Patent: September 17, 1991Assignee: Nippon Oil Co., Ltd.Inventor: Nobuaki Kawabata
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Patent number: 5037668Abstract: The invention relates to acrylate polymer and copolymer release coatings containing amounts of polyfluoropolymer powder sufficient to alter the adhesion of the release coating on a support after radiation curing of the formulation producing said coating.Type: GrantFiled: December 18, 1989Date of Patent: August 6, 1991Assignee: Mobil Oil CorporationInventor: Frank A. Nagy
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Patent number: 5032102Abstract: A doll is fabricated of a combination of waterproof materials together with overlying fabric layers formed of a water dissolvable fabric. In addition, embodiments are shown in which facial appearance features are formed of a water dissolvable material to alter the facial appearance of the doll. In its intended use, the doll is immersed in a vessel of water causing the dissolvable fabric layers and dissolvable facial appearance elements to be completely removed from the doll exposing the underlying waterproof elements.Type: GrantFiled: March 14, 1990Date of Patent: July 16, 1991Assignee: Mattel, Inc.Inventors: Liliane Davidson, George Dunsay, Cathy Larson, Robin K. Smith
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Patent number: 5017237Abstract: A process for facilitating the removal of undesired contamination from a surface, comprising the steps:(a) applying a solution containing a polysaccharide and a solvent therefor onto said surface before it is subjected to contamination, said polysaccharide being capable of forming a redissolvable or swelling solid film upon drying;(b) allowing the applied solution to dry to form a solid film on said surface;(c) treating the coated surface with a liquid capable of redissolving the film or providing for swelling thereof; and(d) removing the undesired contamination by removing the dissolved or swelled surface layer of the film.Type: GrantFiled: January 16, 1990Date of Patent: May 21, 1991Assignee: Bioboat ABInventor: Sigfrid Svensson
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Patent number: 4988540Abstract: A process for preparing laminates of polyvinyl fluoride and at least one other fluoropolymer that are free from adhesive at the interface by dispersion coating a first film to form a second film and curing the second film at a temperature below the melting point of the first film.Type: GrantFiled: July 11, 1989Date of Patent: January 29, 1991Assignee: E. I. Du Pont de Nemours and CompanyInventors: Chester G. Bragaw, Jr., Thomas P. Concannon, Robert F. Davis
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Patent number: 4960687Abstract: An improved process for the preparation of backing layers with improved coating qualities is described. These layers are designed to transmit antistatic properties from antistatic layers coated under the backing layers and provide antihalation or anticurl effects in addition thereto. The process of this invention includes in-line addition of a pre-stabilized crosslinking solution to a gelatino-conductive polymer solution just prior to the coating thereof. Smooth, skip-free coatings are obtained and the solutions are stable and can be maintained for long periods of time.Type: GrantFiled: September 29, 1989Date of Patent: October 2, 1990Assignee: E. I. Du Pont de Nemours and CompanyInventor: Thomas B. Cho
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Patent number: 4959437Abstract: A process for producing a silicon-containing polyamic acid affording a silicon-containing polyimide having a low thermal expansion coefficient and a process for producing the silicon-containing polyimide are provided, the former process comprising reacting pyromellitic acid dianhydride (A.sup.1 mols) and 3,3',4,4'-biphenyltetracarboxylic acid dianhydride (A.sup.2 mols) with a diamine of the following formula (I) (B mols) and an aminosilicon compound of the formula (II) so as to satisfy the following expressions (III) and (IV): ##STR1## wherein R.sup.1 is methyl, ethyl, methoxy, ethoxy or halogen; R.sup.2 is alkyl or alkyl-substituted phenyl; X is a hydrolyzable alkoxy, acetoxy or halogen; m is 0, 1 or 2; n is 1 or 2; and k is 1, 2 or 3; andthe latter process comprising baking a solution of the above silicon-containing polyamic acid at 50.degree. to 500.degree. C.Type: GrantFiled: June 1, 1988Date of Patent: September 25, 1990Assignee: Chisso CorporationInventors: Kouichi Kunimune, Yoshiya Kutsuzawa, Shiro Konotsune
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Patent number: 4911218Abstract: A composition comprised of polyvinyl alcohol coating and at least one water insoluble particulate organic or inorganic material having a plate like structure for use on at least one side of a rubber tire. Preferred particulate materials are flake mica and flake glass.Type: GrantFiled: March 13, 1989Date of Patent: March 27, 1990Assignee: The Goodyear Tire & Rubber CompanyInventor: George P. Patitsas