Of Aldehyde Or Ketone Condensation Product Patents (Class 428/524)
  • Patent number: 5725935
    Abstract: The present invention discloses signage articles having a layer of fused dry toner powder which is fused by employing a tacky pressure-sensitive adhesive and low compression. Suitable tacky pressure-sensitive adhesives include alkyl acrylate polymers or copolymers, alkyl vinyl ether polymers or copolymers, polyisobutylene, polybutadiene, and butadiene-styrene copolymers. Such signage articles further comprise a transparent cover layer disposed over the fused dry toner powder-bearing surface. Also disclosed are methods of forming signage articles, one method comprising the steps of applying dry toner powder to a first substrate surface, applying a composition including a tacky pressure-sensitive adhesive to a second substrate surface, and laminating the two substrates to admix the dry toner powder and the tacky pressure-sensitive adhesive. Either the first or second substrate may be the transparent cover layer of the resulting signage article.
    Type: Grant
    Filed: September 26, 1996
    Date of Patent: March 10, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: J. Sundar Rajan
  • Patent number: 5714269
    Abstract: A film suitable for continuous application to particle boards in the making of laminated particle board is disclosed, which film is stem penetrable and impregnated with semi-cured impregnating resins and provided with a partially cured layer of glue on one side and a fully cured lacquer layer on the other side, which film is permeable to gases generated during production of laminated particle board. A process for producing such a film is also disclosed and also a method for producing a laminated particle board by means of a continuous direct lamination process.
    Type: Grant
    Filed: June 29, 1995
    Date of Patent: February 3, 1998
    Assignee: Casco Nobel AB
    Inventor: Francisco Munoz Madrid
  • Patent number: 5709950
    Abstract: Flexible, aminoplast-curable film-forming compositions and multi-component composite coating compositions comprising at least one pigmented or colored base coat and at least one transparent clear coat are disclosed. A pigmented or colored base coat is first applied to a substrate followed by the application of a clear coat to the base coat. Both the colored base coat and the clear coat are flexible, curable film-forming compositions having an aminoplast crosslinking agent, and the base coat and optionally the clear coat has carbamate functional polymers. The flexible, multi-component composite coating compositions provide improved durability, water spotting resistance, and/or acid etch resistance, making the composite coatings particularly useful for plastic automotive parts.
    Type: Grant
    Filed: December 19, 1996
    Date of Patent: January 20, 1998
    Assignee: PPG Industries, Inc.
    Inventors: John W. Burgman, Gina M. Terrago, Christopher A. Verardi
  • Patent number: 5688598
    Abstract: A thermosetting, organic solvent-based, primer coating composition for protecting metal surfaces which includes a solvent solution of: (a) a hydroxy-functional polyester resin; (b) a thermosetting acrylic resin; (c) a hydroxy-terminal polybutadiene resin, a hydroxy-terminal epoxidized polybutadiene resin, or mixtures thereof; (d) a blocked isocyanate crosslinker including at least one dimethyl pyrazole blocked isocyanate; (e) an aminoplast crosslinker including at least one melamine-formaldehyde condensate; (f) a catalyst; and, (g) a pigment. The primer exhibits excellent flexibility after curing to allow the primer to be coil coated onto metals as a thicker film and to have the metal subsequently formed without film fracture or loss of adhesion.
    Type: Grant
    Filed: June 28, 1996
    Date of Patent: November 18, 1997
    Assignee: Morton International, Inc.
    Inventors: Mitchell T. Keck, Ronald J. Lewarchik, Jack C. Allman
  • Patent number: 5683773
    Abstract: Chlorine-containing polyethylene- and polyether-based elastomer compositions having excellent heat resistance and chemical resistance, which are heat stabilized with from about 1 to about 25 parts per hundred weight of the elastomer of barium sulfate, and high temperature and chemical resistant molded and extruded products including automotive hose and cable jacketing incorporating such elastomer compositions.
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: November 4, 1997
    Assignee: The Gates Corporation
    Inventor: Dennis Kemper
  • Patent number: 5674630
    Abstract: Polypropylene impact copolymer compositions are provided which contain a homopolymer phase of predominantly homopolymeric polypropylene, a copolymer phase of copolymerized ethylene and propylene, and a nucleating agent. The inventive compositions have a rubber content (Fc) in the range of 25 to 45% by weight, a crystallization temperature in the range of 122.degree. to 132.degree. C., a melt flow in the range of about 7 to about 60 dg/min, and a ratio of the intrinsic viscosity of the copolymer phase to the intrinsic viscosity of the homopolymer phase of 1.4 to about 1.9. The polypropylene impact copolymer compositions may be used to form cast films which preferably are soft, quiet, and suitable for use in products to be used next to the skin, such as diapers, adult incontinence pads and feminine hygiene products.
    Type: Grant
    Filed: May 8, 1995
    Date of Patent: October 7, 1997
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventor: Ananda M. Chatterjee
  • Patent number: 5672424
    Abstract: A transparency comprised of a supporting substrate, thereover a first coating layer comprised of an anionic layer that binds well with the substrate; and a second cationic layer situated on the top of the first anionic layer that binds with the anionic layer and comprised of cationic quaternary monomers and polymers thereof and a lightfastness inducing agent; and a third ink receiving layer situated on the top of the second cationic layer and comprised of block copolymers and graft polymers, a biocide and a filler; which transparency possesses a haze value of from about 0.5 to about 10 and a lightfastness value of from about 95 to about 98.
    Type: Grant
    Filed: June 3, 1996
    Date of Patent: September 30, 1997
    Assignee: Xerox Corporation
    Inventors: Shadi L. Malhotra, Kirit N. Naik, David N. MacKinnon
  • Patent number: 5663244
    Abstract: A flexible, aminoplast-curable film-forming composition and a process for preparing multi-layered coated articles coated with a pigmented or colored base coat and a transparent or clear topcoat are disclosed. A pigmented or colored base coat is first applied to a substrate followed by the application of a transparent topcoat to the base coat. The transparent topcoat composition is a flexible, curable film-forming composition comprising (1) a polyether polymer containing a plurality of terminal or pendant carbamate groups of the structure: ##STR1## and (2) an aminoplast crosslinking agent. The topcoat composition provides a flexible composite coating with improved acid etch resistance, making the composite coating particularly useful as a topcoat for plastic automotive parts.
    Type: Grant
    Filed: May 23, 1995
    Date of Patent: September 2, 1997
    Assignee: PPG Industries, Inc.
    Inventors: Steven V. Barancyk, Christopher A. Verardi, William A. Humphrey
  • Patent number: 5656365
    Abstract: Polyvinylbutyral useful for the production of laminated glasses containing a crosslinking agent capable of making the polyvinylbutyral very slightly meltable or nonmeltable. The material according to the invention may contain a plasticizer and is particularly resistant to fire and allows one to produce a laminated material with a good resistance to impact and to fire.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: August 12, 1997
    Assignee: Saint Gobain Vitrage
    Inventor: Daniel Dages
  • Patent number: 5652047
    Abstract: Preparation of binder resins having improved flow properties in the manufacture of curable fiber composites of natural or synthetic fiber materials, which are based on thermosetting novolaks which contain crosslinking agents and contain practically no free mononuclear phenols, by admixing polyglycols and/or polycarboxylic acids or anhydrides thereof and/or acid esters of polyglycols and polycarboxylic acids, preferably in amounts of in total up to 20% by weight, to the novolaks in the melt, pulverizing the mixture, after cooling to room temperature, and mixing it intimately with the required amount of pulverulent crosslinking agent.
    Type: Grant
    Filed: May 20, 1996
    Date of Patent: July 29, 1997
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Wolfgang Hesse, Erhard Leicht, Richard Sattelmeyer, Ralph Schaefer
  • Patent number: 5648434
    Abstract: Sulfonimide cure catalysts are used with aminoplast crosslinking agents and resins capable of reacting with aminoplast crosslinking agents to prepare heat curable compositions capable of crosslinking to form coatings and articles. Liquid or solid curable compositions may be prepared. Solid sulfonimide catalysts used in combination with solid glycoluril type crosslinking agents are well suited for powder coating systems containing hydroxy- and carboxy-functional resins.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: July 15, 1997
    Assignee: Cytec Technology Corp.
    Inventors: Jeno G. Szita, Subban Ramesh, William Jacobs, III, John Colin Brogan
  • Patent number: 5646219
    Abstract: A process for the production of a modified phenol-aldehyde resin which may form a binder system when combined with a curing agent which includes an additional source of an aldehyde, e.g., a phenol-formaldehyde resin. The inventive phenol-aldehyde resin may be modified with compounds from one of the following classes: (1) dihydroxybenzenes, (2) aminophenols, and (3) phenylenediamines. The resin and adhesive are useful in the production of a wood composite (such as plywood, oriented strandboard, or fiberboard).
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: July 8, 1997
    Assignee: Masonite Corporation
    Inventor: Zygmunt Teodorczyk
  • Patent number: 5643682
    Abstract: Sulfonimide cure catalysts are used with aminoplast crosslinking agents and resins capable of reacting with aminoplast crosslinking agents to prepare heat curable compositions capable of crosslinking to form coatings and articles. Liquid or solid curable compositions may be prepared. Solid sulfonimide catalysts used in combination with solid glycoluril type crosslinking agents are well suited for powder coating systems containing hydroxy- and carboxy-functional resins.
    Type: Grant
    Filed: November 16, 1992
    Date of Patent: July 1, 1997
    Assignee: Cytec Technology Corp.
    Inventors: Jeno G. Szita, Subban Ramesh, William Jacobs, III, John Colin Brogan
  • Patent number: 5637410
    Abstract: A polyolefin-containing adhesive blend comprising: (A) 1 to 30 parts by weight of a graft copolymer having a polyolefin backbone grafted with 0.001 to 30% by weight of at least one polymerisable ethylenically unsaturated carboxylic acid or derivative thereof, (B) 70 to 99 parts by weight of a polyolefin provided that at least 5 parts by weight of (B) is (C) a polyethylene having a density of less than 930 kgm.sup.-3 wherein the graft copolymer (A) has been reacted with a compound(D) which has at least two primary or secondary amino groups at least one of which is a primary amino group, the sum of (A), (B) and (C) being 100 parts by weight. Multilayer structures comprising a polyolefin layer, a polyketone layer and an intermediate layer of the adhesive blend are also disclosed.
    Type: Grant
    Filed: June 14, 1995
    Date of Patent: June 10, 1997
    Assignee: BP Chemicals Limited
    Inventors: James G. Bonner, Philip K. G. Hodgson
  • Patent number: 5637658
    Abstract: A process for the production of a modified phenol-aldehyde resin which may form a binder system when combined with a curing agent which includes an additional source of an aldehyde, e.g., a phenol-formaldehyde resin. The inventive phenol-aldehyde resin may be modified with compounds from one of the following classes: (1) dihydroxybenzenes, (2) arninophenols, and (3) phenylenediamines. The resin and adhesive are useful in the production of a wood composite (such as plywood, oriented strandboard, or fiberboard).
    Type: Grant
    Filed: May 23, 1995
    Date of Patent: June 10, 1997
    Assignee: Masonite Corporation
    Inventor: Zygmunt Teodorczyk
  • Patent number: 5610239
    Abstract: A two component adhesive comprising a natural or synthetic rubber first component and a second component capable of destabilizing the natural or synthetic rubber first component slowly can be utilized in conventional application equipment designed for applying single component adhesives is provided.
    Type: Grant
    Filed: October 20, 1995
    Date of Patent: March 11, 1997
    Assignee: Reichhold Chemicals, Inc.
    Inventor: Richard Skelley
  • Patent number: 5601911
    Abstract: This invention provides a capsule type retroreflective sheeting excelling in strength and longterm weatherability, the connecting walls, which partially connect the light-transmitting protective film and support film while retaining the spaces between the two films, being free of internal flaws such as deficiently filled portions and having uniform structure and shape. The capsule type retroreflective sheeting in which the connecting walls are formed by partially thermofusing and thermoforming the support film is characterized in that the support film is composed of a resin composition which contains a thermofusible rein and a crosslinking agent, said thermofusible resin having a shearing stress at 180.degree. C. within a range of 9.times.10.sup.3 .times.1.times.10.sup.5 dyne/cm.sup.2, and which can form a non-fusible crosslinked resin having a shearing stress at 180.degree. C. of at least 1.times.10.sup.6 dyne/cm.sup.2 after the crosslinkage.
    Type: Grant
    Filed: November 22, 1995
    Date of Patent: February 11, 1997
    Assignee: Nippon CarbideKogyo Kabushiki Kaisha
    Inventors: Katsura Ochi, Osamu Tanaka, Manabu Ogawa
  • Patent number: 5593785
    Abstract: An adherent film-forming composition comprising a carbamate-functional acrylic polymer, a polyester and an aminoplast crosslinking agent is disclosed. The coating composition can be used to produce clear coats in composite color plus clear coatings exhibiting good levels of acid etch resistance as well as high intercoat adhesion. Also disclosed are a method of applying a composite color plus clear coating to a substrate and the coated article prepared by such a method.
    Type: Grant
    Filed: June 26, 1995
    Date of Patent: January 14, 1997
    Assignee: PPG Industries, Inc.
    Inventors: Michael A. Mayo, Steven V. Barancyk
  • Patent number: 5571614
    Abstract: A polymeric film comprises a substrate layer of polymeric material and a coating layer formed from a composition comprising a layer mineral and a cross-linking agent. The coating layer comprises greater than 10% and less than 90% by weight of the layer of the layer mineral and greater than 10% and less than 90% by weight of the layer of a resin derived from the cross-linking agent. The coating layer preferably additionally comprises a copolymer of ethylene with a vinyl monomer. The polymeric film can have oxygen barrier properties, and the layer mineral coating layer exhibits improved adhesion to the polymeric substrate. The polymeric film is particularly suitable for use as a packaging film.
    Type: Grant
    Filed: February 4, 1994
    Date of Patent: November 5, 1996
    Assignee: Imperial Chemical Industries PLC
    Inventors: Anthony G. Harrison, William N. E. Meredith, David E. Higgins
  • Patent number: 5562966
    Abstract: Oxidation resistant coatings on carbon fibers are provided. Oxidation inhibitor particles are incorporated into a polymeric sizing coating on carbon fibers to protect the fibers from deterioration and erosion due to oxidation of carbon.
    Type: Grant
    Filed: March 12, 1990
    Date of Patent: October 8, 1996
    Assignee: Science Applications International Corporation
    Inventors: William A. Clarke, David A. Eitman
  • Patent number: 5549963
    Abstract: A treated fibrous polyamide substrate having durable resistance to staining by acid colorants comprising a fibrous polyamide substrate having applied thereto an aqueous solution of a partially sulfonated, partially phosphated resol resin; which aqueous solution may include polymethylmethacrylates or combinations thereof, and that may include a fluorochemical; and the method of treating said substrate, and the resol resins themselves.
    Type: Grant
    Filed: November 9, 1994
    Date of Patent: August 27, 1996
    Assignee: Trichromatic Carpet Inc.
    Inventors: Yassin M. Elgarhy, Barry R. Knowlton
  • Patent number: 5547753
    Abstract: Novel aminoplast anchored UV stabilizers are provided. Compared to unanchored stabilizers, the anchored stabilizers disclosed herein have increased compatibility with coating resins and have reduced volatility due to higher molecular weights resulting from anchoring. A process for preparing the anchored stabilizers by the reaction of unanchored stabilizers with alkoxymethylated aminoplasts in a sulfuric acid medium is also provided. The unanchored stabilizers include 2-(2-hydroxyaryl)benzotriazoles, 2-hydroxybenzophenones, 2-(2-hydroxyaryl)-4,6-diaryl-1,3,5-tri-azines, salicylic acid derivatives, 2-hydroxyoxanilides, and blocked derivatives thereof as well as mixtures of two or more stabilizers. The aminoplasts include alkoxymethylated derivatives of glycolurils, melamines, and benzoguanamines.
    Type: Grant
    Filed: May 23, 1995
    Date of Patent: August 20, 1996
    Assignee: Cytec Technology Corp.
    Inventors: Jeno G. Szita, Paul S. Waterman
  • Patent number: 5545476
    Abstract: A highly glossy thick aesthetic laminate surface layer is achieved by using pre-cured particulates of the impregnating resin preferably along with an initial binder material and abrasion resistant mineral particles. The protective overcoating may be applied in a thick layer to give gouge resistance and a deep look in the glossy laminate. The overcoated decor sheet is pressed against a mirror plate in the laminate manufacturing process, and gives a gloss meter reading well over 100. Because the impregnating resin and the pre-cured particulates have the same index of refraction, the transparency of the coating and the resultant clarity of the underlying decor sheet are excellent.
    Type: Grant
    Filed: May 2, 1994
    Date of Patent: August 13, 1996
    Assignee: International Paper Company
    Inventors: Robin D. O'Dell, Joseph A. Lex, Alice M. Simon, Jayesh Shah
  • Patent number: 5530048
    Abstract: The present invention is directed to a phenolic resin composition useful for preparing a binder for reinforced composites, to a binder for reinforced composites made using the phenolic resin composition, and to a reinforced composite made using the binder. The phenolic resin composition of the present invention contains an aqueous mixture of: (a) a resole formed by reacting phenol with formaldehyde at a mole ratio of formaldehyde to phenol ranging from about 0.6:1 to about 4:1 and (b) a sulfite or bisulfite, wherein the resole has a pH at least about 7 and less than 9.5 and the composition contains from about 0.007 to about 0.4 mole equivalent of sulfur per mole of phenol.
    Type: Grant
    Filed: October 25, 1994
    Date of Patent: June 25, 1996
    Assignee: Georgia-Pacific Resins, Inc.
    Inventors: Roderick A. McDonald, Mark J. Knudsen
  • Patent number: 5482767
    Abstract: A light-transmitting laminated panel having increased resistance to impact-induced rupture sequentially includes: a) a glass layer, b) an optically clear layer of a plasticized polyvinyl butyral matrix containing discrete particles of crosslinked polyvinyl butyral integrally randomly dispersed throughout the matrix which enhance the impact-resistance of the panel and are visually indistinguishable from the matrix polyvinyl butyral, and c) another glass layer, the laminated panel at a specific pummel adhesion having greater mean break height than that of a laminated panel containing layers a), b) and c) but without the impact-resistance-enhancing particles of crosslinked polyvinyl butyral in layer b). An amount up to 40 weight % of the particles is incorporated into the matrix polyvinyl butyral before preparing the laminated panel.
    Type: Grant
    Filed: September 29, 1994
    Date of Patent: January 9, 1996
    Assignee: Monsanto Company
    Inventors: Aristotelis Karagiannis, Peter D. LaPorte
  • Patent number: 5464911
    Abstract: Novel polymeric compositions are provided for polyamide fibers or fibers having terminal amino groups that impart stain resistance and are resistant to discoloration.
    Type: Grant
    Filed: April 21, 1994
    Date of Patent: November 7, 1995
    Assignee: Peach State Labs, Inc.
    Inventors: Michael S. Williams, Thomas H. Moss, III
  • Patent number: 5460891
    Abstract: Polyamide fibrous substrates which resist staining by acid dyes and discoloration upon exposure to UV light, and processes for preparing the same which comprise applying, at pH 2 to 10, a base-catalyzed condensation product formed by the reaction of a bis(hydroxyphenyl)sulfone with formaldehyde to give a product known as a resole.
    Type: Grant
    Filed: August 5, 1994
    Date of Patent: October 24, 1995
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Robert C. Buck, Engelbert Pechhold, Donald D. May
  • Patent number: 5459207
    Abstract: Disclosed are a resorcinol resin adhesive composition which comprises a resorcinol resin modified by m-aminophenol, and a process for bonding wood materials by using the same.
    Type: Grant
    Filed: May 23, 1994
    Date of Patent: October 17, 1995
    Assignee: Oshika Shinko Co., Ltd.
    Inventors: Yuki Saigan, Mitsutoshi Ogawa
  • Patent number: 5453540
    Abstract: Fluorochemical compositions comprising fluorinated compounds, wherein the fluorinated compound comprises fluorochemical oligomeric portion, an organic moiety, and a group that can impart soft hand, stain release, water repellency, or a durable property when the compound is applied to a fibrous substrate, wherein the fluorochemical oligomeric portion is bonded to the organic moiety through an isocyanate-derived linking group. Also disclosed are fluorochemical compositions in the form of fluorochemical liquid dispersions and methods for preparing substrates treated with such compositions. Substrates so treated exhibit particularly durable and abrasion-resistant oil and water repellent properties. Intermediates in the preparation of the fluorochemical compositions are also disclosed. Some of the intermediates are useful as emulsifiers in fluorochemical liquid dispersions.
    Type: Grant
    Filed: November 29, 1993
    Date of Patent: September 26, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Rudolf J. Dams, Johan E. De Witte
  • Patent number: 5443867
    Abstract: Laminar articles are disclosed comprising a heterogeneous melt of (a) a polyolefin, (b) a barrier resin comprising a blend of a condensation polymer incompatible with the polyolefin such as a polyamide and a phenol-formaldehyde resin, and (c) a compatibilizer. A process for making such laminar articles is also disclosed. Multilayer structures incorporating this barrier resin are also disclosed.
    Type: Grant
    Filed: October 25, 1993
    Date of Patent: August 22, 1995
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Vinodkumar Mehra, Edmund A. Flexman, Jr.
  • Patent number: 5437899
    Abstract: A structural member of fiber reinforced composite material suitable for secondary processing and a method of processing is described. The structural member before secondary processing is typically a multi-ply tube, rod, or sheet formed with an outer sheath of fiber reinforced thermoplastic material having a melting temperature t.sub.m1 and an inner core material, also fiber reinforced thermoplastic, having a melting temperature, t.sub.m2 lower than t.sub.m1. The member, prior to secondary processing, is thermoplastic.In a secondary process the member is heated to a temperature between t.sub.m1 and t.sub.m2, but sufficient to render the outer sheath malleable. The member is deformed to a desired geometry, such as a helix, and cooled to a hardened state.
    Type: Grant
    Filed: July 14, 1992
    Date of Patent: August 1, 1995
    Assignee: Composite Development Corporation
    Inventor: Peter A. Quigley
  • Patent number: 5424136
    Abstract: Useful materials are formed by polymerizing a 1,3 dioxolan-4-one monomer. The 1,3 dioxolan-4-one monomer can be copolymerized with a variety of comonomers, including glycolide, lactide, dioxanone, trimethylene carbonate and caprolactone.
    Type: Grant
    Filed: June 24, 1992
    Date of Patent: June 13, 1995
    Assignee: United States Surgical Corporation
    Inventor: Matthew E. Hermes
  • Patent number: 5422170
    Abstract: Wood fiber, inorganic cellular material, flame retardant and an organic binder for binding these materials, are mixed together and hot press formed to give a wood based panel. The resultant panel has a wood like texture, is light weight, has excellent sound absorption properties, and is semi-incombustible, and has a good insulating property for use as a wall or ceiling material.
    Type: Grant
    Filed: March 31, 1993
    Date of Patent: June 6, 1995
    Assignee: Yamaha Corporation
    Inventors: Ritsuo Iwata, Hirotoshi Takahashi, Satoshi Suzuki, Shiro Hanao
  • Patent number: 5413862
    Abstract: According to the present invention, a magnetic recording medium having a non-magnetic support and a magnetic layer formed thereon is provided. The magnetic layer is formed from a composition containing as its main components ferromagnetic particles and a resinous binder. The binder resin contains a polyurethane resin containing as its components a high molecular weight polyol (A) with a molecular weight of 500 or more and an organic diisocyanate (B). The high molecular weight polyol (A) contains as its components an aromatic polyester diol (A-1) having a metal sulfonate group in an amount of 20 to 600 equivalents/10.sup.6 g and a polyol (A-2) which has no metal sulfonate group and is in a liquid state at 20.degree. C. The ratio between the aromatic polyester diol (A-1) and the polyol (A-2) is in the range of 10:1 to 1:4. A urethane group is contained in the polyurethane resin in an amount of 600 to 1500 equivalents/10.sup.6 g.
    Type: Grant
    Filed: April 28, 1993
    Date of Patent: May 9, 1995
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Hiroshi Murata, Takeshi Yatsuka
  • Patent number: 5397665
    Abstract: A photomask with pellicle which is treated so that even if the obverse and reverse surfaces of the photomask are stained with a trace amount of contaminative particles during cleaning, water content and a low-volatile component are prevented from adhering to such contaminative particles during storage, thereby preventing the photomask from becoming stained with passage of time. Also disclosed is a method of treating and storing the photomask. The photomask is subjected to a hydrophobic treatment by providing the obverse and reverse surfaces thereof with a trimethylsilyl film formed by a reaction of OH groups in these surfaces with 1,1,1,3,3,3-hexamethyldisilazane.
    Type: Grant
    Filed: November 4, 1993
    Date of Patent: March 14, 1995
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Kazuhiro Tabuchi, Hiroyuki Inomata, Takashi Yamauchi
  • Patent number: 5393610
    Abstract: A method for stabilizing shelf life conductivity of conductive coatings such as polypyrrole or nickel sulfide on a substrate such as fiberglass, by incorporating in such conductive coating a polyphenol or a polysiloxane. The polyphenol is derived from a phenolic material in the form of a phenol-formaldehyde monomer or an oligomer of phenol-formaldehyde, and the polysiloxane is derived from a siloxane. Upon heating, the phenolic material cures to a polyphenol and the siloxane is converted to a polysiloxane, forming the stabilizing material on the conductive polypyrrole or nickel sulfide coated substrate. The phenolic material is preferably incorporated directly into the solution formulation for preparing the conductive nickel sulfide or polypyrrole on the substrate, and the polyphenol stabilizer is formed together with the conductive coating on the substrate by heating.
    Type: Grant
    Filed: February 5, 1993
    Date of Patent: February 28, 1995
    Assignee: Rockwell International Corporation
    Inventors: Edward F. Witucki, William P. Moran, Patricia H. Cunningham, Lyle V. Monney
  • Patent number: 5371156
    Abstract: There are disclosed a modified oriented polyacetal product, the surface of said product being coated partly or entirely with a phenolic compound-polyacetal composite layer, the application thereof and a process for preparing the same.
    Type: Grant
    Filed: December 20, 1993
    Date of Patent: December 6, 1994
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Tamikuni Komatsu, Tadao Kanuma
  • Patent number: 5362557
    Abstract: Wear-resistant high pressure decorative laminates having excellent scratch, mar, scrape and abrasion resistance and methods of producing the same.
    Type: Grant
    Filed: October 28, 1992
    Date of Patent: November 8, 1994
    Assignee: Formica Technology Inc.
    Inventors: Donald J. Albrinck, John J. Mascavage
  • Patent number: 5362816
    Abstract: A pressure-sensitive adhesive having improved shear strength obtained by virtue of the formation of the enamine of a pendent acetoacetate is described. These materials contain acetoacetate functional monomer in a low Tg emulsion polymer. Shear strength is improved without compromise of either peel strength or tack.
    Type: Grant
    Filed: June 4, 1992
    Date of Patent: November 8, 1994
    Assignee: Rohm and Haas Company
    Inventors: Barry S. Snyder, Daniel A. Bors
  • Patent number: 5346767
    Abstract: A method of coating is disclosed which is based on applying a composition which is based on colloidal silica dispersed in a silanol or methacrylic derived polymer system or an aminoplast resin to an article of a polybutylene terepthalate or polyethylene terephthalate, or blends of polybutylene terephthalate and polyethylene terephthalate, which optionally include a polycarbonate, or optionally include a polyether ester or polyetherimide ester and a heavy inorganic filler.
    Type: Grant
    Filed: December 22, 1992
    Date of Patent: September 13, 1994
    Assignee: General Electric Company
    Inventors: Mark G. Tilley, Robert R. Gallucci
  • Patent number: 5340654
    Abstract: An interlayer film for laminated glass comprising laminated layers of at least one layer (A) which comprises a plasticizer and polyvinyl acetal resin for which the number of carbon atoms in the acetal group is 4, 5 or 6 and the mole ratio of the average amount of the ethylene groups bonded to acetyl groups is 8-30 mole % of the total amount of the main chain ethylene groups, and at least one layer (B) which comprises a plasticizer and polyvinyl acetal resin for which the number of carbon atoms in the acetal group is 3 or 4 and the mole ratio of the amount of the average ethylene groups bonded to acetyl groups is 4 mole % or less of the total amount of the main chain ethylene groups.
    Type: Grant
    Filed: March 18, 1993
    Date of Patent: August 23, 1994
    Assignee: Sekisui Kagaku Kogyo Kabushiki Kaisha
    Inventors: Naoki Ueda, Kenichi Asahina, Hirohumi Omura, Jiro Miyai
  • Patent number: 5338611
    Abstract: Microwave frequencies in the range of 0.5 GHz to 10 GHz are used to weld thermoplastic substrates by interposing a carrier strip. The strip is formed of a polymer carrier which is miscible in the substrates. Electrically conductive submicron carbon black susceptor particles are chosen with specified properties such that they generate enough heat within a specified time to produce a weld in which the heat generated is confined to the weld zone. The resulting weld is such that the welded assembly has essentially the same dimensions as the clamped assembly. Glass fiber reinforced substrates are welded without breaking glass fibers in the weld zone. Lap strength of welded substrates is greater than that of substrates joined by prior art methods, whether by welding or adhesive bonding. Articles microwave welded in accordance with the invention are useful for manufacturing and repairing vehicle components such as automobile bumpers and dashboards and other structural parts of automobiles, aircraft, and spacecraft.
    Type: Grant
    Filed: February 20, 1990
    Date of Patent: August 16, 1994
    Assignee: Aluminum Company of America
    Inventors: Herbert J. Lause, Kristen L. Parks, Larry D. Tanis, David D. Leon
  • Patent number: 5336566
    Abstract: Compounds are described having the formula: ##STR1## Z represents a cyanuric ring nucleus or the residue of a polyol, L.sub.1, L.sub.2, and L.sub.3 each independently represents a divalent linking group or a covalent bond, andR.sub.1, R.sub.2, and R.sub.3 each independently represents H, alkyl, cycloalkyl, or aryl.These compounds are useful as crosslinking agents for curable compositions such as coating compositions.
    Type: Grant
    Filed: April 30, 1993
    Date of Patent: August 9, 1994
    Assignee: BASF Corporation
    Inventor: John W. Rehfuss
  • Patent number: 5328978
    Abstract: The present invention relates to a triazine/formaldehyde resin which contains a compound of the general formula I ##STR1## wherein R.sup.1 and R.sup.2 are defined as stated in claim 1, a process for its preparation and its use as a curing agent in surface coating systems.
    Type: Grant
    Filed: October 28, 1993
    Date of Patent: July 12, 1994
    Assignee: Cassella AG
    Inventors: Manfred Schon, Jurgen Ott, Uwe Kubillus, Elif Tas
  • Patent number: 5324590
    Abstract: Particleboard is produced by coating the particles of wood furnish with an adhesive comprising a foamed mixture of 96-98 percent by weight urea formaldehyde and 2-4 percent by weight dried animal blood, the mixture being foamed to about 5-15 times the volume of the liquid resin to provide a urea formaldehyde resin solids content of 45-70 percent by weight. The foamed adhesive mixture is coated onto the wood particles of the furnish, as by means of a blender, to provide the finished particleboard with a resin solids content of 5-10 percent by weight.
    Type: Grant
    Filed: January 28, 1993
    Date of Patent: June 28, 1994
    Assignees: Pacific Adhesives Co., Inc., Spare Parts Manufacturers, Inc.
    Inventors: Sven J. Nylund, Boyd H. Hansen, Thomas L. Demaree, Robert L. Rhoden
  • Patent number: 5321057
    Abstract: Ammonium polyphosphate having the general formula (I):(NH.sub.4).sub.n+2 P.sub.n O.sub.3 n+1 (I)microencapsulated with condensation compounds obtained by polymerizing pominic compositions essentially constituted by derivatives of 2,4,6-triamino-1,3,5-triazine having the general formula (II): ##STR1## with aldehyde, preferably formaldehyde.
    Type: Grant
    Filed: November 13, 1992
    Date of Patent: June 14, 1994
    Assignee: Ministero dell'Universita' e della Ricerca Scientifica e Tecnologica
    Inventors: Roberto Cipolli, Roberto Oriani, Enrico Masarati, Gilberto Nucida
  • Patent number: 5318856
    Abstract: Dyes having the specific structural formula (1) set out below, their copper salt dyes, water-soluble azo dyes containing the dyes or the copper salt dyes, and polarizing films containing the water-soluble azo dyes: ##STR1## wherein A means a benzene or naphthalene ring having a sulfone group or a base thereof, Y and Z individually denote a group of the following formula (a): ##STR2## wherein R.sup.2 is a hydrogen atom, a methyl group, a methoxyl group or an ethoxyl group and R.sup.3 is a methyl, methoxyl or ethoxyl group, R.sup.1 represents an amino, C.sub.1-4 alkylamino, C.sub.2-4 alkylcarboxyamino, benzoylamino or phenylamino group bonded to the 6 or 7 position of the naphthalene ring, and X denotes a hydrogen, sodium, potassium or lithium atom, with the proviso that Y and Z are different but, when both R.sup.2 s are hydrogen atoms and both R.sup.3 s are methoxyl groups, Y and Z may be the same.
    Type: Grant
    Filed: December 24, 1992
    Date of Patent: June 7, 1994
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Tsutami Misawa, Akira Ogiso, Rihoko Imai, Hisato Itoh
  • Patent number: 5316846
    Abstract: A composition comprising an acid resistant substrate in the form of fibers or particles coated with electrically conductive, doped tin oxide.
    Type: Grant
    Filed: February 21, 1992
    Date of Patent: May 31, 1994
    Assignee: Ensci, Inc.
    Inventors: Naum Pinsky, Saulius A. Alkaitis
  • Patent number: 5302439
    Abstract: Disclosed is a recording sheet which comprises (a) a substrate; (b) a coating on the substrate which comprises a binder and a material having a melting point of less than about 65.degree. C. and a boiling point of greater than 150.degree. C. and selected from the group consisting of alkyl phenones, alkyl ketones, halogenated alkanes, alkyl amines, alkyl anilines, alkyl diamines, alkyl alcohols, alkyl diols, halogenated alkyl alcohols, alkane alkyl esters, saturated fatty acids, unsaturated fatty acids, alkyl aldehydes, alkyl anhydrides, alkanes, and mixtures thereof; (c) an optional traction agent; and (d) an optional antistatic agent.
    Type: Grant
    Filed: March 19, 1993
    Date of Patent: April 12, 1994
    Assignee: Xerox Corporation
    Inventors: Shadi L. Malhotra, Brent S. Bryant
  • Patent number: 5302438
    Abstract: A photographic image-bearing recording member and a manufacturing method of it are disclosed. The recording member comprisesa support,a thermoplastic resin layer bearing a photographic image, which is provided on a surface of said support, anda protective layer comprising a radiation setting composition and being set with irradation of an actinic radiation, which is provided at a outermost position of the side of the support on which said thermoplastic layer is provided. Symbols or characters may be further beared in the thermoplastic layer. The symbols and characters are preferably formed on the themopastic layer by the heat-transfer printing method.
    Type: Grant
    Filed: January 15, 1993
    Date of Patent: April 12, 1994
    Assignee: Konica Corporation
    Inventors: Tawara Komamura, Takao Nimura, Taketo Nozu