Organosilicon Containing Coating Material Patents (Class 427/515)
  • Patent number: 5997961
    Abstract: A simple and effective method to bond a thin coating of poly(N-isopropylacylamide) (NIPAAm) on a glass surface by UV photopolymerization, and the use of such a coated surface in nano and micro technology applications. A silane coupling agent with a dithiocarbamate group is provided as a photosensitizer, preferably, (N,N'-diethylamine)dithiocarbamoylpropyl-(trimethoxy)silane (DATMS). The thiocarbamate group of the sensitizer is then bonded to the glass surface by coupling the silane agent with the hydroxyl groups on the glass surface. The modified surface is then exposed to a solution of NIPAAm and a crosslinking agent which may be any organic molecule having an acrylamide group and at least two double bonds in its structure, such as N,N'-methylenebisacrylamide, and a polar solvent which may be any polar liquid which will dissolve the monomer and the crosslinking agent such as acetone, water, ethanol, or combinations thereof.
    Type: Grant
    Filed: March 6, 1998
    Date of Patent: December 7, 1999
    Assignee: Battelle Memorial Institute
    Inventors: Xiangdong Feng, Jun Liu, Liang Liang
  • Patent number: 5994424
    Abstract: A free-radical curable polish composition is described. The composition can be applied and cured as an ultra thin film on finished surfaces to provide enhanced chemical and mar resistance. The composition comprises an aqueous emulsion including an olefin-functional polymer or an olefin-functional prepolymer, and a silicone or silicone copolymer preferably with photoinitiators for UV and EB cure. The polish/emulsion can be applied, for example, to wet the surface of nitrocellulose lacquer wood finishes. The polish wet surface is first wiped to remove excess polish and thereafter exposed to UV radiation to provide a thin, polymerized protective film.
    Type: Grant
    Filed: February 12, 1998
    Date of Patent: November 30, 1999
    Assignee: Lilly Industries, Inc.
    Inventors: Eugen Safta, Frank Chen, Greg Muselman, James V. Mirante, Danny R. Linthicum
  • Patent number: 5962581
    Abstract: A method of forming a pattern comprising the steps of forming a film of an organosilane compound comprising a polysilane having a repeating unit represented by the following general formula (1) on a substrate, irradiating an actinic radiation onto a predetermined portion of the film of the organosilane compound formed on the substrate, and removing the predetermined portion of the film irradiated by the actinic radiation by dissolving it with an aqueous alkaline developing solution. ##STR1## wherein Ar is a substituted or non-substituted aryl group.
    Type: Grant
    Filed: April 26, 1996
    Date of Patent: October 5, 1999
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Shuzi Hayase, Yoshihiko Nakano, Rikako Kani, Mao Ito, Satoshi Mikoshiba, Takeshi Okino, Sawako Fujioka
  • Patent number: 5962079
    Abstract: Ultra thin organo-ceramic and metal oxide films are prepared under room temperature and atmospheric conditions by exposing .alpha., .omega.--functional siloxane oligomers and fatty acid metal soaps, respectively, to a combination of ultraviolet light (UV) and ozone (O.sub.3). The process includes the steps of preparing ultra thin .alpha., .omega.--functional polysiloxane and fatty acid metal soap films using, but not limited to, the Langmuir-Blodgett (LB) technique. The LB technique permits construction of molecular monolayer or multilayer films on a variety of substrates. By using carboxylic acid end groups on the siloxane oligomers, metal ions can be incorporated into the SiO.sub.x film after UV-ozone exposure. This technique can be used to make electronically, optically, and chemically important organo-ceramic and metal oxide films on temperature sensitive substrates.
    Type: Grant
    Filed: January 2, 1997
    Date of Patent: October 5, 1999
    Assignee: The University of Connecticut
    Inventors: Jeffrey T. Koberstein, Christopher L. Mirley
  • Patent number: 5954907
    Abstract: This invention relates to a process for applying a coating material comprising a release coating composition or a pressure sensitive adhesive composition to a substrate, the process comprising: (A) atomizing and electrically charging said coating material; and (B) spraying the atomized and charged coating material from step (A) on to a substrate which overlies a grounded support structure. In one embodiment, the coating material sprayed during step (B) is a release coating composition, said process further comprising the additional steps of: (C) curing said release coating composition; (D) atomizing and electrically charging a pressure sensitive adhesive composition; (E) spraying the pressure sensitive adhesive composition from step (D) on to said substrate over the cured release coating composition from step (C); and (F) placing another substrate over the sprayed pressure sensitive adhesive composition from step (E).
    Type: Grant
    Filed: October 7, 1997
    Date of Patent: September 21, 1999
    Assignee: Avery Dennison Corporation
    Inventors: Joseph A. LaRose, Jeffrey J. DeMange, Tamara L. McCartney, Robert J. Takacs
  • Patent number: 5948484
    Abstract: An an improved process for surface modification of solid substrates, such as polymers and carbon-based materials, is disclosed. The preferred process comprises three steps: a first activation step wherein reactive hydrogen groups are formed in a surface layer of a polymeric or carbon-based material; a second silylation step wherein the reactive hydrogen groups are reacted with a silylating agent to form silicon-containing groups; and a third stabilization step wherein an upper portion of the activated, silylated layer is oxidatively converted to a silicon and oxygen enriched surface layer. The process can be performed using materials not having pre-existing reactive hydrogen groups or precursor groups. Modified materials according to the present invention have improved properties, such as erosion resistance and oxygen and water barrier properties, and are potentially useful in numerous industries, such as aerospace and packaging.
    Type: Grant
    Filed: June 5, 1997
    Date of Patent: September 7, 1999
    Inventors: Yuri Gudimenko, Jasha I. Kleiman, Grant R. Cool, Zelina A. Iskanderova, Roderick C. Tennyson
  • Patent number: 5945174
    Abstract: Sheet materials according to the present invention comprise a sheet material substrate, such as for example a film or paper sheet, with a polymer release coating overlying and adhered to a surface of the sheet material substrate. Single and multilayer release coatings can be formed on the substrate by vapor deposition of silicone acrylates and/or fluorinated acrylates. These coatings can be applied in thickness of 0.05 micron to 1.0 micron to achieve a range of release properties. These coatings can be applied in a very thin single layer on relatively smooth substrates or in a multilayer form on rough substrates such as paper. The new coating process described here has lower process and materials costs, improved adhesion, low slip, and excellent release characteristics.
    Type: Grant
    Filed: July 1, 1998
    Date of Patent: August 31, 1999
    Assignee: Delta V Technologies, Inc.
    Inventors: David G. Shaw, Eric Dawson, Daniel Cline, Marc Langlois
  • Patent number: 5919526
    Abstract: The present invention relates to the use of a thin fluorosilicone elastomer coating as a cost effective solution to the oil weepage problem while retaining the sealing advantages of silicone rubber.
    Type: Grant
    Filed: April 10, 1998
    Date of Patent: July 6, 1999
    Assignee: General Electric Company
    Inventors: Richard Paul Eckberg, Edwin Robert Evans, Melvin Richard Toub
  • Patent number: 5894050
    Abstract: The invention relates to a method of manufacturing an optical component. In this method, a substrate, for example of glass, is successively provided with an orientation layer and an optically anisotropic layer of a material containing monomers which are provided with at least one covalently bonded reactive group, whereafter the optically anisotropic layer is polymerized. In accordance with the present invention, the applied orientation layer also comprises covalently bonded reactive groups. As a result, a good adhesion between the optically anisotropic layer and the orientation layer of the substrate is achieved. This has a favorable effect on the optical quality of the component. For the reactive groups use is preferably made of (meth)acrylate compounds which are polymerized by exposing them to radiation. Good results are achieved if for the orientation layer use is predominantly made of polyimide with covalently bonded reactive groups.
    Type: Grant
    Filed: April 2, 1997
    Date of Patent: April 13, 1999
    Assignee: U.S. Philips Corporation
    Inventors: Ivo G.J. Camps, Fredericus J. Touwslager
  • Patent number: 5891529
    Abstract: Curable compositions comprising a substance that produces a base when exposed to radiation and a polymer molecule that contains silicon-hydrogen bonds which react with hydroxyl groups under the action of the base to form silicon-oxygen bonds (Si--O) and hydrogen molecules. These compositions cure when exposed to radiation. A pattern can be formed by placing a mask between a coating of the composition and the radiation source during this exposure episode and thereafter dissolving the uncured composition. The compositions have little weight loss during their cure, they can be cured by low intensity radiation, and they yield heat-resistant cured products.
    Type: Grant
    Filed: May 18, 1998
    Date of Patent: April 6, 1999
    Assignee: Dow Corning Asia, Ltd.
    Inventors: Brian Robert Harkness, Mamoru Tachikawa
  • Patent number: 5891530
    Abstract: Methods of producing release coatings, adhesives, primers, and other polymeric coatings are described. A method for producing a release coating on a substrate comprises the steps of applying a polymerizable composition comprising a free radically polymerizable ethylenically unsaturated polysiloxane to a surface of a substrate, and exposing the polymerizable composition to a monochromatic light source having a peak intensity at a wavelength of between about 160 nanometers to 240 nanometers to form a release coating. Methods for producing a pressure sensitive adhesive and other polymeric coatings using a monochromatic light source are also described.
    Type: Grant
    Filed: April 19, 1996
    Date of Patent: April 6, 1999
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Robin E. Wright
  • Patent number: 5881194
    Abstract: A radiation-curable matrix material for affixing coated and inked optical fibers in a ribbon configuration is disclosed. The material comprises an aliphatic polyether-based urethane acrylate; a monomer having a plurality of acrylate or methacrylate moieties; an alkyl acrylate or methacrylate; and an optional photoinitiator. Also disclosed are an optical fiber ribbon prepared therefrom; a process for preparing such ribbon; and a radiation-curable coating composition generally applicable for coating a substrate.
    Type: Grant
    Filed: March 17, 1994
    Date of Patent: March 9, 1999
    Inventor: David Clarke Duecker
  • Patent number: 5877228
    Abstract: Method for curing UV-curable silicone compositions, characterized by the formation of cured silicone, having a low-tack surface that is harder than the interior, by exposing an ultraviolet-curable silicone composition to ultraviolet radiation at a ratio of the exposure dose for wavelengths of 200 to 280 nm (excluding 280 nm) to the exposure dose for wavelengths of 280 to 400 nm of 0.5 to 10.0.
    Type: Grant
    Filed: September 9, 1997
    Date of Patent: March 2, 1999
    Assignee: Dow Corning Toray Silicone Co., LTD.
    Inventors: Katsutoshi Mine, Hiroyoshi Naito, Kimio Yamakawa
  • Patent number: 5863679
    Abstract: The present invention provides a method for forming a thin film pattern having an excellent accuracy of the pattern. The method comprises the steps of:(a) exposing a polysilane layer formed from a polysilane having a structure of the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 indicate a group which is independently selected from the group consisting of a substituted or non-substituted aliphatic hydrocarbon residue, an alicyclic hydrocarbon residue and an aromatic hydrocarbon residue and m and n indicate an integer, provided on a substrate, to ultraviolet light selectively to form a latent image of the thin film pattern; and(b) dipping the polysilane layer in which the latent image of the thin film pattern is formed in a metal oxide sol and then drying.
    Type: Grant
    Filed: July 5, 1996
    Date of Patent: January 26, 1999
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Hiroshi Tsushima, Iwao Sumiyoshi, Masaaki Yokoyama
  • Patent number: 5853808
    Abstract: Silsesquioxane polymers that are useful for preparing SiO.sub.2 -rich ceramic coatings are obtained as the polymeric reaction products from the hydrolysis and condensation of organosilanes having a .beta.-substituted alkyl group. A preferred silsesquioxane polymer is the polymeric reaction product obtained from .beta.-chloroethyltrichlorosilane. Coating compositions containing such silsesquioxane polymers dissolved in organic solvent may be applied to a substrate and converted to SiO.sub.2 -rich ceramic thin layers by evaporating the solvent and heating the coated substrate at moderate temperatures.
    Type: Grant
    Filed: September 3, 1997
    Date of Patent: December 29, 1998
    Assignees: Gelest Inc., University of Pennsylvania
    Inventors: Barry C. Arkles, Donald H. Berry, Lisa Kiernan Figge
  • Patent number: 5851598
    Abstract: Machine elements having Release Coatings that are Electromagnetic Wave Energy Cured, Highly Abrasion Resistant, Flexible, Low Friction, Release Coatings for Compliant Elastomeric Substrates used on Bowed Rolls and Press Rolls. 100% solids, highly abrasion resistant release coatings which are polymerization cured with electromagnetic wave energy in the wave length range of 5500 .ANG. to 0.006 .ANG.. These coatings will bond securely to commonly used structural and elastomeric, rigid and flexible, substrates; including metallic and non-metallic materials. The coatings are compositions of varying percentages of 2-Phenoxyethyl Acrylate, Tetraethylene Glycol Diacrylate, Isobutyl Benzoin Ether, 1,6 Hexanediol Diacrylate, Cycloaliphatic Bis A Epoxide, Polyurethane Acrylate, Methyl Methacrylate, Polysiloxane and other Acrylics, Tertiary Amines, Epoxidized Novolac, Fluorinated Alkyloxylate, Electromagnetic Wave Energy sensitive Photoinitiators, and Electromagnetic energy absorbers.
    Type: Grant
    Filed: May 8, 1997
    Date of Patent: December 22, 1998
    Assignee: Mount Hope Machinery Company
    Inventor: James O. Gallant
  • Patent number: 5820944
    Abstract: The present invention pertains to a curable composition which comprises a) a N-substituted 4-(o-nitrophenyl)dihydropyridine which constitutes a base-generating substance that is caused to generate a base by the action of ultraviolet light, and (b) a silicone polymer (R.sub.2 SiO.sub.2/2)(RSiO.sub.3/2) containing silicon-hydrogen bonds (Si--H) which are capable of reacting with hydroxy groups to form silicon-oxygen bonds (Si--O) and hydrogen molecules (H.sub.2) under the effect of the base. This composition is cured by irradiation with ultraviolet light. Patterns are formed by placing a mask between a coating film of the composition and the ultraviolet light source during the irradiation with ultraviolet light, and then dissolving and removing the uncured portions of the composition following said irradiation.
    Type: Grant
    Filed: March 31, 1997
    Date of Patent: October 13, 1998
    Assignee: Dow Corning Asia, Ltd.
    Inventors: Brian R. Harkness, Mamoru Tachikawa, Kasumi Takei
  • Patent number: 5783260
    Abstract: A thin-film forming method comprising an uncured-layer forming step in which a mixed composition containing an organic polymerizing agent curable composition and a silicone polymerizing curable composition is prepared to form an uncured layer consisting of this mixed composition on a resin substrate; a solvent removing step in which the solvent in the uncured layer is removed; a first polymerization curing step in which the organic polymerizing curable composition in the uncured layer is polymerized; and a second polymerization curing step in which the silicone polymerizing curable composition in the uncured layer is polymerized. The thin-film forming method can comprise formation of the uncured layer on a resin substrate through the intermediation of a primer layer or formation of an uncured underlayer and uncured top layer followed by separate underlayer polymerization and top layer polymerization curing steps.
    Type: Grant
    Filed: July 25, 1996
    Date of Patent: July 21, 1998
    Assignee: Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
    Inventors: Yoshifumi Kato, Yoshifumi Fujita, Atsushi Hozumi, Akiteru Nishio
  • Patent number: 5753318
    Abstract: The present invention relates to the use of a thin fluorosilicone elastomer coating as a cost effective solution to the oil weepage problem while retaining the sealing advantages of silicone rubber.
    Type: Grant
    Filed: January 30, 1997
    Date of Patent: May 19, 1998
    Assignee: General Electric Company
    Inventors: Richard Paul Eckberg, Edwin Robert Evans, Melvin Richard Toub
  • Patent number: 5753346
    Abstract: The invention provides a radiation curable release coating composition comprising:(a) about 1 to about 50 percent by weight of a cationically reactive polydiorganosiloxane liquid rubber having the following formula: ##STR1## wherein R are monovalent moieties which can be the same or different selected from the group consisting of alkyl, substituted alkyl, aryl, and substituted aryl wherein at least about 50% of the total number of silicon atoms have two methyl groups bonded thereto;E is an organic monovalent functional group comprising from about 1 to about 20 carbon atoms having at least one cationically co-reactive functional group;a and b both represent integers, wherein the sum of a plus b is an integer of about 10 to about 1200;b has a value ranging from about 0 to about 0.
    Type: Grant
    Filed: November 12, 1996
    Date of Patent: May 19, 1998
    Assignee: Minnesota Mining & Manufacturing Company
    Inventors: Charles M. Leir, William R. Berggren, William R. Bronn, David J. Kinning, Olester Benson, Jr.
  • Patent number: 5734000
    Abstract: A silicon-based lacquer is obtained by precondensation of a silicon compound and organic silanes followed by hydrolysis of the precondensate.
    Type: Grant
    Filed: February 13, 1995
    Date of Patent: March 31, 1998
    Assignees: E.I. DuPont de Nemours & Company, Fraunhofer-Gesellschaft Zur Forderung
    Inventors: Michael Popall, Jochen Schulz, Birke Olsowski, Monika Pilz
  • Patent number: 5716679
    Abstract: Optical elements comprising a substrate and a transparent composite material layer having an embossed surface, the composite material comprising a polymer matrix having incorporated therein inorganic components in the form of nanoscaled particles, and methods of preparation thereof which comprise mixing a polymer precursor with a sol of nanosealed particles in an organic solvent and a polymerizable initiator, applying the mixture to a substrate to form a coating, and embossing the coating while simultaneously curing it.
    Type: Grant
    Filed: August 3, 1994
    Date of Patent: February 10, 1998
    Assignee: Institut Fur Neue Materialien Gemeinnutzige GmbH
    Inventors: Herbert Krug, Rudiger Nass, Helmut Schmidt, Lubomir Spanhel
  • Patent number: 5712022
    Abstract: An easily regeneratable printed thermoplastic resin product is provided by printing it with a specific radiation-curable ink composition and curing the printed ink with radiation to form a cured ink film thereon.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: January 27, 1998
    Assignees: Yoshino Kogyosho Co., Ltd., Hayakawa Rubber Co., Ltd.
    Inventors: Ban Tanaka, Hiroki Nii, Kosaku Yamada, Hideo Kushida, Takashi Miya, Shuichi Koshio, Tadashi Hayakawa
  • Patent number: 5712327
    Abstract: A hydrophilic soft gas permeable contact lens having substantially improved clinical performance by the provision of a sufficient higher proportion of hydroxy acrylic units to silicon units in the lens surface layer, as compared to that existing in the lens core, by the surface treatment of the lens, such as by reacting of the lens surface with polyols and base or acid or by radiation treatment of the base lens to graft, deposit or coat thereon hydroxy acrylic units.
    Type: Grant
    Filed: June 16, 1992
    Date of Patent: January 27, 1998
    Inventors: Sing-Hsiung Chang, Mei-Zyh Chang
  • Patent number: 5708046
    Abstract: The present invention relates to a curable silicone release coating composition comprising a mixture of an organopolysiloxane containing at least two alkenyl groups per compound, an organohydrogensilicon compound, inhibitors having a boiling point of up to 130.degree. C. at atmospheric pressure, inhibitors having a boiling point of at least 170.degree. C. at atmospheric pressure a platinum group metal-containing catalyst, and optionally a diluent. The silicone release coating compositions are stable when stored at room temperature, especially when the composition is used on a coating roll for the production of a thin films. The compositions of this invention also quickly form a cured film having good release properties for adhesive materials at a comparatively low temperatures.
    Type: Grant
    Filed: September 20, 1996
    Date of Patent: January 13, 1998
    Assignees: Dow Corning Corporation, Dow Corning Toray Silicone Co., Ltd.
    Inventors: John Darrell Jones, Michael Ward Skinner, Nobuo Kaiya, Atsushi Togashi, Takateru Yamada
  • Patent number: 5661092
    Abstract: Ultra thin organo-ceramic and metal oxide films are prepared under room temperature and atmospheric conditions by exposing .alpha.,.omega.-functional siloxane oligomers and fatty acid metal soaps, respectively, to a combination of ultraviolet light (UV) and ozone (O.sub.3). The process includes the steps of preparing ultra thin .alpha.,.omega.-functional polysiloxane and fatty acid metal soap films using, but not limited to, the Langmuir-Blodgett (LB) technique. The LB technique permits construction of molecular monolayer or multilayer films on a variety of substrates. By using carboxylic acid end groups on the siloxane oligomers, metal ions can be incorporated into the SiOx film after UV-ozone exposure. This technique can be used to make electronically, optically, and chemically important organo-ceramic and metal oxide films on temperature sensitive substrates.
    Type: Grant
    Filed: September 1, 1995
    Date of Patent: August 26, 1997
    Assignee: The University of Connecticut
    Inventors: Jeffrey T. Koberstein, Christopher L. Mirley
  • Patent number: 5631049
    Abstract: A formulation for a resilient gasket coating which is curable by ultraviolet radiation without emitting fumes into the surrounding environment. Different portions of the coating are cured by successive exposure to two different wavelengths of ultraviolet radiation during a continuous in-line process. The first wavelength cures an inner portion of the coating and bonds the coating to the substrate. The second wavelength cures a coating surface. The formulation permits ultraviolet curing of thicker pigmented coatings than have been previously known.
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: May 20, 1997
    Inventor: Brent R. Boldt
  • Patent number: 5607729
    Abstract: A gel-free silica acrylate curable coating composition made from one or more of soluble salts, soaps, amines, nonionic and anion surfactants, acids or mixtures thereof, and a method for producing these compositions.
    Type: Grant
    Filed: February 26, 1996
    Date of Patent: March 4, 1997
    Assignee: General Electric Company
    Inventor: George F. Medford
  • Patent number: 5595789
    Abstract: Method for coating polycarbonate moulded parts whereby, to the surface of a moulded body composed of a polycarbonate based on a cycloaliphatic diphenol, a coating material which possesses as cross-linkable components agents having acrylate, allyl, epoxide, silanol, isocyanate, anhydride, melamine functional groups or combinations thereof, is applied in a thickness of from 0.5 to 200 .mu.m and is cured thermally and/or by irradiation, with the addition of thermally or photochemically curing catalysts being possible.
    Type: Grant
    Filed: August 18, 1995
    Date of Patent: January 21, 1997
    Assignee: Bayer AG
    Inventor: Peter Bier
  • Patent number: 5589219
    Abstract: Disclosed is a heat-resistant, high-voltage insulated lead wire for direct current, which meets the demand for higher heat resistance, and its insulating coating over the conductor is formed by a polyolefin resin composition. The polyolefin resin composition is a flame-retarded resin composition comprising of a mixture of a polyethylene whose crystalline component has melting point higher than 125.degree. C. and a copolymer of ethylene and .alpha.-olefin, which contains a multifunctionalized monomer having unsaturated carbon-carbon bond moiety in the molecule as an indispensable component. The insulating coating made of this resin composition is irradiated by an ionizing radiation to give a heat-resistant, high-voltage lead wire for direct current, which has a perpendicular flame resistance (VW-1) acceptable in the UL Standards and has a temperature rating of higher than 125.degree. C.
    Type: Grant
    Filed: May 3, 1995
    Date of Patent: December 31, 1996
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventor: Hiroshi Hayami
  • Patent number: 5580614
    Abstract: A process for producing UV or UV/IR or IR/UV-hardened coatings on substrates by applying a coating compound to the substrate to be coated and by the action of UV radiation, or combined UV/IR or IR/UV radiation, as well as UV or UV/IR or IR/UV-hardenable coating compounds comprising a component A, which is a solution of a complexed, metal organic Ti or Zr compound with polymerizable ligands, a component B, which is a hydrolyzate of one or more radically polymerizable alkoxy silanes of general formula ##STR1## and 0.1 to 5% by weight of a component C, which is an initiator for the polymerization.
    Type: Grant
    Filed: September 7, 1995
    Date of Patent: December 3, 1996
    Assignee: Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V.
    Inventors: Sabine Amberg-Schwab, Walther Glaubitt, Klaus Greiwe, Ertugrul Arpac
  • Patent number: 5567764
    Abstract: The present invention relates to the use of silicone anchorage additives in curable silicone coatings. The silicone anchorage additive of the invention is an alkoxy containing alkenyl functional organopolysiloxane, and these additives can be used in silicone coatings to provide superior anchorage while maintaining fast cure rates especially on films.
    Type: Grant
    Filed: July 28, 1995
    Date of Patent: October 22, 1996
    Assignee: Dow Corning Corporation
    Inventors: Michael J. Brasseur, Kun-Long Chen
  • Patent number: 5551663
    Abstract: Plastic molds for ophthalmic devices and methods of making such molds are disclosed. The plastic molds are provided with abrasion resistant, release-enhancing faces formed by coatings of particular compositions of polyacryloylated alkane polyols and alkane polyols.
    Type: Grant
    Filed: September 20, 1994
    Date of Patent: September 3, 1996
    Assignee: Soane Technologies, Inc.
    Inventors: Young C. Bae, Fredric J. Lim, Thomas B. Ottoboni, David S. Soane
  • Patent number: 5539013
    Abstract: The invention relates to silicone-polyether linear block copolymers of the formula ##STR1## wherein, R is hydrogen or a C.sub.(1-8) alkyl, alkoxyl or haloalkyl radical or a monovalent epoxy-functional organic radical;R.sup.1 is hydrogen or a C.sub.(1-8) alkyl or alkoxyl radical, or a monovalent epoxy-functional organic radical;provided that at least two R or R.sup.1 groups are either hydrogen or monovalent epoxy-functional organic radicals;R.sup.2 is a divalent alkylene radical;R.sup.3 is a C.sub.(2-6) alkyl or alkoxyl radical;n is a positive integer of about 4 to about 400;m is a whole number of from 0 to about 50; and,each of R, R.sup.1, R.sup.2, and R.sup.3, may be unsubstituted or substituted The invention also relates to UV-curable compositions comprising the above-described compound, with or without a UV-detectable dye marker, and a process for making such a compound.
    Type: Grant
    Filed: December 16, 1994
    Date of Patent: July 23, 1996
    Assignee: General Electric Company
    Inventors: Richard P. Eckberg, Robert F. Agars, Brian D. Shepherd
  • Patent number: 5532027
    Abstract: An improved process which comprises applying a layer of a color coating composition to a substrate used for the exterior of a motor vehicle and then applying a layer of a clear coating composition to the color coating and curing the resulting clear coat/color coat layer; the improvement is the use of a clear coating composition containing a film forming binder of an acrylosilane polymer and exposing the clear coat layer after curing to an artificial source of UV light under ambient temperatures and atmospheric conditions in an amount sufficient to improve the resistance of the clear coat to water spotting and acid etching when exposed to natural weathering conditions.
    Type: Grant
    Filed: December 21, 1994
    Date of Patent: July 2, 1996
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: J. David Nordstrom, Hisanori Omura, Alan E. Smith, David M. Thomson
  • Patent number: 5529822
    Abstract: The present invention relates to a process for forming a laminate and the laminate using silicone release coating compositions comprising (A) a mixture of (i) a dimethylsiloxane-methylvinylsiloxane-methylphenylsiloxane copolymer and (ii) a dimethylsiloxane-methylvinylsiloxane copolymer, (B) an organohydrogenpolysiloxane, (C) a platinum catalyst, and (D) an organic solvent. The silicone release coating compositions of the present invention provide small release resistance values both at low and high peeling velocities and do not impair the residual adhesion of tacky substances that have come into contact with the coating.
    Type: Grant
    Filed: May 22, 1995
    Date of Patent: June 25, 1996
    Assignee: Dow Corning Toray Silicone Co., Ltd.
    Inventors: Atsushi Togashi, Takateru Yamada
  • Patent number: 5523164
    Abstract: Method for forming paint films by the 2-coats/1-bake method, using a clearcoat paint in which the resin component comprises (a) a copolymer of a vinyl monomer mixture containing at least 20 wt % (meth)acrylic acid cycloalkyl esters 40-90 wt %, (b) alkyl-etherified melamine resin 5-50 wt %, and (c) blocked polyisocyanate 5-50 wt %, and a basecoat paint in which the resin component comprises (d) a copolymer of a vinyl monomer mixture containing at least 10% of monomers represented by the general formula ##STR1## (X.sup.1 -X.sup.5 are H or a methyl group, i is 0-2, j is 0 or 1, k is 0-3, m is 0-3, and n is 1-10), 40-80 wt %, (e) alkyl-etherified melamine resin 10-50 wt %, (f) blocked polyisocyanate 0-40 wt %, (g) cellulose type resin 0-20 wt %, and (h) organic crosslinked fine particles 0-30 wt %, and coatings obtained by the said method.
    Type: Grant
    Filed: June 23, 1995
    Date of Patent: June 4, 1996
    Assignee: BASF Lacke + Farben, AG
    Inventors: Kishio Shibato, Masataka Kawamura, Atsushi Sato, Shigekazu Sato
  • Patent number: 5520965
    Abstract: The present invention describes a method for the manufacture of a phosphor intensifying screen which eliminates the use of solvents and high processing temperatures. The method comprises blending a phosphor in a hardenable system (i.e., that is, as defined herein, a polymerizable or curable system) comprising phosphor in a radiation curable binder composition, coating the phosphor in a radiation curable binder composition onto a substrate, and polymerizing (i.e., hardening) the system by exposure to actinic radiation. The radiation curable binder composition comprises an organopolysiloxane or a mixture of organopolysiloxanes.
    Type: Grant
    Filed: October 7, 1994
    Date of Patent: May 28, 1996
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: John C. Dahlquist, Mieczyslaw H. Mazurek
  • Patent number: 5512328
    Abstract: In forming a thin film pattern, first a seed material film is formed on a substrate and then exposed using electron beam lithography, for example, in the shape of the pattern. The latent image is then removed and an oriented material is deposited on one of the seed material and the substrtate, which have different hydrophilicity properties, to form the pattern. The oriented film is formed by an LB film forming method, in one example, and in another example the LB film material is a cresol novolak resin having a proportion of p-cresol novolak to m-cresol novolak of at least 20%.
    Type: Grant
    Filed: July 28, 1993
    Date of Patent: April 30, 1996
    Assignee: Hitachi, Ltd.
    Inventors: Toshiyuki Yoshimura, Naoko Miura, Shinji Okazaki, Minoru Toriumi, Hiroshi Shiraishi
  • Patent number: 5510153
    Abstract: Glass particles (14) are mixed within an uncured silicone resin (13). The fluid uncured resin is placed in a portion of a terminal block (11) and cured to form a gel (13') by subjecting it to microwaves in a microwave oven (22). Conductors (25, 26) to be interconnected are next inserted into the cured silicone gel and interconnected. The cured gel containing the glass particles thereafter constitutes a dependable insulator for the conductors, particularly the portions of the conductors that are interconnected.
    Type: Grant
    Filed: August 4, 1993
    Date of Patent: April 23, 1996
    Assignee: AT&T IPM Corporation
    Inventors: Peter F. Lilienthal, II, Ivan Pawlenko, Ching-Ping Wong
  • Patent number: 5506008
    Abstract: Lacquer films sensitive to ultraviolet (UV) and/or electron beam radiation re applied to substrates as masking layers by a process known as the "spin on process". This invention is a new method of applying a lacquer film sensitive to UV and/or electron beam radiation. A vinyl-containing substance and a linear or cyclic siloxane are vaporized and then deposited onto the substrate to be masked. In the preferred embodiment of the invention, the substances utilized are octamethylcyclotetrasiloxane and trivinylmethylsilane.
    Type: Grant
    Filed: July 19, 1994
    Date of Patent: April 9, 1996
    Assignee: Fraunhofer-Gesellschaft zur Forderung Der Angewandten Forschung e.V.
    Inventors: Armin Klumpp, Erwin Hacker
  • Patent number: 5486578
    Abstract: The present invention relates to curable silicone coatings containing silicone resins. More particularly the present invention relates to curable silicone coating compositions comprising an olefinic organopolysiloxane, an organohydrogensiloxane, a platinum catalyst, and silicone resins in which the resins are prepared by a continuous method whereby the ratio of reactants is kept constant thus producing less variation in the final silicone resin that is produced. The silicone resins provide beneficial release properties when added to curable silicone coating compositions.
    Type: Grant
    Filed: December 20, 1994
    Date of Patent: January 23, 1996
    Assignee: Dow Corning Corporation
    Inventors: Leslie E. Carpenter, II, Robert A. Ekeland
  • Patent number: 5470616
    Abstract: Disclosed are shaped articles having a coating layer formed on surface region, wherein the surface region is formed of a polymer derived from a multifunctional acrylic monomer and having 0.02 to 0.2 .mu.mol/cm.sup.2 of acidic groups therein, by curing a coating composition consisting essentially of a specific silica polycondensate. The silica polycondensate is obtained by mixing (I) colloidal silica and (II) a specific silicon compound in such a molar ratio that the average number of hydrolyzable groups is within the range of 2.30 to 3.85, and then subjecting them to cohydrolysis and polycondensation. In these shaped articles, the coating layer have excellent properties such as hardness and abrasion resistance, as well as good adhesion.
    Type: Grant
    Filed: September 14, 1994
    Date of Patent: November 28, 1995
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Masamoto Uenishi, Tsukasa Mizobuchi, Masatoshi Takesue, Yukio Kobayashi, Shoichi Nagai
  • Patent number: 5466491
    Abstract: There is provided a method and a composite made therefrom of an organic substrate, such as a polycarbonate and a radiation cured silicon containing polyacrylate hardcoat. Improved weathering resistance results when an anaerobic gelation inhibitor such as galvinoxyl is used during the processing of the hardcoat.
    Type: Grant
    Filed: September 12, 1994
    Date of Patent: November 14, 1995
    Assignee: General Electric Company
    Inventors: Arnold Factor, Larry N. Lewis
  • Patent number: 5461691
    Abstract: The present invention is directed to a beam-curable coating composition for coating glass surfaces, particularly, optical glass fibers. The resultant coatings show slight or no loss of adhesion after exposure to moisture. The coating composition includes ethylenically unsaturated polyurethane, ethylenically unsaturated monomer, photoinitiator and a silane compound. The silane compound is an azidosilane and is added to improve adhesion of the coating agents exposed to moisture. Optionally, aminoalkoxysilanes may also be included.
    Type: Grant
    Filed: May 26, 1994
    Date of Patent: October 24, 1995
    Assignee: BASF Lacke + Farben AG
    Inventors: Stephan Schunck, Horst Hintze-Bruning, Rainer Blum
  • Patent number: 5449534
    Abstract: An anti-reflection film is produced on the panel surface of a cathode-ray tube by:(A) preparing a solution for forming an anti-reflection film, which contains water and a metal alkoxide having the formula,M(OR).sub.nwherein M is a metal selected from the group consisting of Si, Ti, Al, Zr, Sn, In, Sb and Zn; R is an alkyl group having 1-10 carbon atoms; n is an integer of from 1 to 8; and when n is not 1, the alkyl groups represented by R may be the same or different,(B) coating the solution for forming an anti-reflection film on the outermost surface of the panel of a cathode-ray tube, and(C) applying an ultraviolet light to the solution for forming an anti-reflection film coated on said surface to cure the solution to form a transparent film with fine roughness.
    Type: Grant
    Filed: September 9, 1992
    Date of Patent: September 12, 1995
    Assignee: Hitachi, Ltd.
    Inventors: Tomoji Oishi, Sachiko Maekawa, Akira Kato, Masahiro Nishizawa, Yoshifumi Tomita, Kojiro Okude, Kenji Tochigi, Yutaka Misawa
  • Patent number: 5447756
    Abstract: An applicator with a surface having a first wetting angle and a first surface area, which surface area has grafted thereto a layer of ion-producing gas plasma having a second wetting angle and a second surface are, wherein the second wetting angle is less than the first wetting angle and the second surface area is greater than the first surface area.
    Type: Grant
    Filed: March 8, 1994
    Date of Patent: September 5, 1995
    Assignee: Revlon Consumer Products Corporation
    Inventor: Melvin E. Kamen
  • Patent number: 5437896
    Abstract: Method of preparing a composite material comprising a silica network and chains of a polyhydroxy compound which are interwoven therewith and a liquid crystal display device having a top coat of such a composite material.A description is given of a method of preparing a composite material comprising a silica network and, interwoven therewith, chains of, for example, polyhydroxyalkyl acrylate, by first photopolymerizing a tetraalkenyl orthosilicate with UV-light and subsequently converting it into the composite material by subjecting it to a sol-gel treatment. The material obtained is optically transparent. In addition, the material exhibits very little shrinkage so that it can be deposited on a substrate in relatively thick layers. The composite material is very suitable for a top coat 5 on a color-filter layer 3 in a liquid crystal display device because, inter alia, it adheres well to the ITO layer 7.
    Type: Grant
    Filed: July 6, 1994
    Date of Patent: August 1, 1995
    Assignee: U.S. Philips Corporation
    Inventors: Johan G. Kloosterboer, Fredericus J. Touwslager
  • Patent number: 5436309
    Abstract: The invention is concerned with silicone copolymer containing terminal and/or pendant oxyalkylene styrene groups which are crosslinkable in the presence of a photoinitiator when exposed to UV radiation and their use in a compositions for coating substrates to provide substrates with anti-adhesive properties.
    Type: Grant
    Filed: April 19, 1994
    Date of Patent: July 25, 1995
    Assignee: Dow Corning Corporation
    Inventors: Bernard J. L. Boutevin, Latifa Abdellah, Gerardo Caporiccio
  • Patent number: 5427824
    Abstract: An improved CVD apparatus for depositing a uniform film is shown. The apparatus comprises a reaction chamber, a substrate holder and a plurality of light sources for photo CVD or a pair of electrodes for plasma CVD. The substrate holder is a cylindrical cart which is encircled by the light sources, and which is rotated around its axis by a driving device. With this configuration, the substrates mounted on the cart and the surroundings can be energized by light of plasma evenly throughout the surfaces to be coated.
    Type: Grant
    Filed: September 8, 1992
    Date of Patent: June 27, 1995
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Takashi Inushima, Shigenori Hayashi, Toru Takayama, Masakazu Odaka, Naoki Hirose