Patents Represented by Attorney W. Graham Buie
  • Patent number: 5382373
    Abstract: A magnetorheological material containing a carrier fluid and an iron alloy particle component. The particle component can be either an iron-cobalt alloy or an iron-nickel alloy. The iron-cobalt alloy has an iron:cobalt ratio ranging from about 30:70 to 95:5 while the iron-nickel alloy has an iron:nickel ratio ranging from about 90:10 to 99:1. The iron alloy particle components are capable of imparting high yield stress capability to magnetorheological materials.
    Type: Grant
    Filed: October 30, 1992
    Date of Patent: January 17, 1995
    Assignee: Lord Corporation
    Inventors: J. David Carlson, Keith D. Weiss
  • Patent number: 5367010
    Abstract: An adhesive composition containing a chlorinated ethylene/vinyl acetate copolymer and at least one of a phenolic resin and an aromatic nitroso compound as an adhesion-promoting additive. The chlorinated ethylene/vinyl acetate copolymer can be prepared without the utilization of environmentally hazardous chlorinated solvents and provides for adhesive compositions which exhibit excellent adhesion and resistance to adverse environmental conditions.
    Type: Grant
    Filed: March 22, 1993
    Date of Patent: November 22, 1994
    Assignee: Lord Corporation
    Inventors: Nicholas J. Gervase, Louie G. Manino
  • Patent number: 5354805
    Abstract: An aqueous adhesive composition for bonding nitrile rubber. The adhesive composition contains a chlorosulfonated polyethylene latex, a polyhydroxy phenolic resin copolymer, and a high molecular weight aidehyde polymer. The adhesive composition exhibits an unusual affinity for nitrile rubber and exhibits excellent adhesive performance as a single-coat formulation. The adhesive composition withstands high temperature bonding conditions and minimizes the utilization of volatile organic solvents.
    Type: Grant
    Filed: May 25, 1993
    Date of Patent: October 11, 1994
    Assignee: Lord Corporation
    Inventors: Carol J. Treat, Douglas H. Mowrey
  • Patent number: 5328940
    Abstract: A radiation-curable composition containing an epoxy compound, a hydroxy-terminated polyurethane, and a photoinitiator. The curable composition exhibits a high green strength and excellent overall bonding capability and is particularly useful in laminating adhesive applications.
    Type: Grant
    Filed: July 20, 1992
    Date of Patent: July 12, 1994
    Assignee: Lord Corporation
    Inventor: David J. Zimmer
  • Patent number: 5314955
    Abstract: A coating composition containing a hydrogenated acrylonitrile-butadiene copolymer, a phenolic resin, a curing component, and a solvent. The coating composition is useful for protecting elastomeric materials from corrosive materials such as oil or fuel. The coating composition is resistant to fatigue and provides for excellent adhesion to both rigid and flexible substrates.
    Type: Grant
    Filed: January 21, 1993
    Date of Patent: May 24, 1994
    Assignee: Lord Corporation
    Inventor: James R. Halladay
  • Patent number: 5310796
    Abstract: An adhesive composition containing a linear polyester polyurethane, a halogenated polyolefin, an epoxy/silane adduct, a Diels-Alder adduct of a halogenated cyclic conjugated diene and a block copolymer of styrene and butadiene and a crosslinking compound for the linear polyester polyurethane. The adhesive composition is preferably utilized as a two-component adhesive for bonding vinyl polymers such as polyvinyl chloride to various substrates such as glass. The adhesive composition exhibits substantial resistance to environmental conditions without the requirements of a pre-heating step.
    Type: Grant
    Filed: March 23, 1993
    Date of Patent: May 10, 1994
    Assignee: Lord Corporation
    Inventors: Patrick A. Warren, William S. Pfister, Mark A. Weih
  • Patent number: 5306438
    Abstract: An electrorheological material containing a carrier fluid and an ionic dye particle component which is an ionically charged compound based on or derived from a conjugated hydrocarbon compound. A preferred ionically charged compound contains at least one aromatic nucleus that has been sulfonated and/or carboxylated to form a negatively charged system which has, in turn, been offset with a positive ion. The electrorheological material is useful for creating aesthetic visual effects and responds quickly to an electric field.
    Type: Grant
    Filed: December 13, 1991
    Date of Patent: April 26, 1994
    Assignee: Lord Corporation
    Inventors: J. David Carlson, Keith D. Weiss, Joseph E. Bares
  • Patent number: 5300555
    Abstract: A butadiene homopolymer latex is prepared by emulsion polymerizing appropriate monomers in the presence of polyvinyl alcohol and a stabilizing solvent. The butadiene homopolymer latices can be prepared without problems of coagulation and can be utilized effectively in adhesive compositions without the use of volatile solvents. Adhesive bonds prepared from the butadiene homopolymer latices also avoid the side effect problems associated with polymers prepared utilizing conventional surfactant-based emulsion polymerization techniques.
    Type: Grant
    Filed: May 31, 1991
    Date of Patent: April 5, 1994
    Assignee: Lord Corporation
    Inventors: Mark A. Weih, Gregory J. Czarnecki
  • Patent number: 5294360
    Abstract: An electrorheological material comprising a carrier fluid and an atomically polarizable particle component. The atomically polarizable particle component has a crystalline lattice structure which allows atoms to shift position with respect to each other in response to the application of an electric field. The electrorheological materials are subjected to an alternating current electric field at a frequency of at least 500 Hz. The materials exhibit substantial electrorheological activity over a broad temperature range.
    Type: Grant
    Filed: January 31, 1992
    Date of Patent: March 15, 1994
    Assignee: Lord Corporation
    Inventors: J. David Carlson, Keith D. Weiss
  • Patent number: 5281638
    Abstract: An aqueous adhesive composition containing a chlorosulfonated polyethylene latex, a polymaleimide compound, a nitroso compound and a metal oxide. The adhesive composition can be effectively utilized without a primer component and exhibits an unusually high resistance to pre-bake conditions and adverse environments. The adhesive also possesses the ability to effectively bond a variety of substrates.
    Type: Grant
    Filed: April 23, 1993
    Date of Patent: January 25, 1994
    Assignee: Lord Corporation
    Inventor: Douglas H. Mowrey
  • Patent number: 5268404
    Abstract: An adhesive composition exhibiting strong rubber-to-metal bonds with excellent environmental resistance without the necessity of first priming the metal surface has been discovered. The composition comprises a halogenated polyolefin, an aromatic nitroso compound, metal oxide such as zinc oxide or magnesium oxide, and optionally a vulcanizing agent such as sulfur or selenium, a phenolic epoxy resin, or carbon black.
    Type: Grant
    Filed: October 5, 1992
    Date of Patent: December 7, 1993
    Assignee: Lord Corporation
    Inventor: Douglas H. Mowrey
  • Patent number: 5232996
    Abstract: A two-part adhesive composition useful for bonding various materials including plastic or thermoplastic substrates. The first part of the adhesive contains an epoxy compound and an acrylate-terminated polyurethane while the second part of the adhesive contains an amine hardener. The presence of the acrylate-terminated polyurethane allows the adhesive composition to be applied to unprepared substrates to form a bond having high strength.
    Type: Grant
    Filed: May 7, 1992
    Date of Patent: August 3, 1993
    Assignee: Lord Corporation
    Inventors: Dilip N. Shah, Terrance H. Dawdy
  • Patent number: 5212212
    Abstract: A zinc-stable ceramic ink composition which contains a metal oxide, a glass frit, a UV-curable vehicle, zinc powder, and a calcium-containing organic complex. The calcium-containing organic complex prevents premature polymerization of the UV-curable vehicle so that the zinc-containing ink composition may be stored for extended periods of time prior to use.
    Type: Grant
    Filed: November 14, 1992
    Date of Patent: May 18, 1993
    Assignee: Lord Corporation
    Inventor: James B. Fonda
  • Patent number: 5200455
    Abstract: An aqueous primer composition containing a polyvinyl alcohol-stabilized aqueous phenolic resin dispersion, a latex of a halogenated polyolefin, and a metal oxide. The phenolic resin dispersion is prepared by mixing (a) a pre-formed, solid substantially water-insoluble, phenolic resin; (b) water; (c) an organic coupling solvent; and (d) polyvinyl alcohol, at a temperature and for a period of time sufficient to form a dispersion of said phenolic resin in water. The aqueous primer composition substantially reduces the utilization of organic solvents, is resistant to pre-bake conditions, and provides for a robust adhesive bond which is flexible and resistant to adverse environments.
    Type: Grant
    Filed: January 30, 1992
    Date of Patent: April 6, 1993
    Assignee: Lord Corporation
    Inventor: Patrick A. Warren
  • Patent number: 5200459
    Abstract: A butadiene heteropolymer latex is prepared by emulsion polymerizing appropriate monomers in the presence of polyvinyl alcohol and a stabilizing solvent. The butadiene heteropolymer can be a butadiene copolymer or terpolymer prepared from butadiene monomers and comonomers such as .alpha.-haloacrylonitrile and acrylic acid. The butadiene heteropolymer latices can be prepared without problems of coagulation and can be utilized effectively in adhesive compositions without the use of volatile solvents. Adhesive bonds prepared from the butadiene heteropolymer latices also avoid the side effect problems associated with polymers prepared utilizing conventional surfactant-based emulsion polymerization techniques.
    Type: Grant
    Filed: May 31, 1991
    Date of Patent: April 6, 1993
    Assignee: Lord Corporation
    Inventors: Mark A. Weih, Helmut W. Kucera
  • Patent number: 5185402
    Abstract: An adhesive composition which contains two distinct polyurethane prepolymers and a halogenated polyolefin and which is useful for bonding flock fibers to a thermoplastic or an elastomeric substrate. The first polyurethane prepolymer is derived from poly(alkylene oxide) polyols while the second polyurethane prepolymer is derived from poly(alkylene oxide) polyols and a dimer acid polyol. Both of the polyurethane prepolymers are preferably derived from a mixture of poly(alkylene oxide) polyols having different molecular weights.
    Type: Grant
    Filed: November 26, 1990
    Date of Patent: February 9, 1993
    Assignee: Lord Corporation
    Inventors: Kenneth E. Fleming, Jeffrey A. Chapman
  • Patent number: 5178675
    Abstract: An adhesive composition useful for bonding various substrates which contain an alkoxy silane compound and an unsaturated acid compound. A preferred embodiment of the invention is an aqueous formulation containing a low molecular weight alkoxy silane compound, a low molecular weight unsaturated acid compound, and water. An example of the alkoxy silane compound is aminopropyl triethoxysilane while an example of the unsaturated acid compound is methacrylic acid. The adhesive composition is particularly effective in bonding non-sulfurcured elastomeric materials such as polyol- and peroxide-cured elastomers to metal surfaces.
    Type: Grant
    Filed: March 22, 1991
    Date of Patent: January 12, 1993
    Assignee: Lord Corporation
    Inventor: Fred H. Sexsmith
  • Patent number: 5175215
    Abstract: A Diels-Alder adduct of a halogenated cyclic conjugated diene and a block copolymer of styrene and butadiene which is particularly useful in adhesive compositions. The Diels-Alder adduct has a halogen content of between about 30 and 45, preferably between about 34 and 40, percent by weight. The halogen content of the adduct is crucial to the performance of the adduct in adhesive compositions. Hexachlorocylopentadiene is a preferred halogenated cyclic conjugated diene for preparing the adduct and either diblock or triblock styrene-butadiene copolymers may be utilized.
    Type: Grant
    Filed: February 20, 1991
    Date of Patent: December 29, 1992
    Assignee: Lord Corporation
    Inventor: Mark A. Weih
  • Patent number: 5175027
    Abstract: A method of coating a substrate with a uniform, ultra-thin film of a polymer comprising immersing a substrate having active hydrogens on its surface in a solution comprising at least one hydrolyzable metal alkoxide of a polymeric network-forming cation, water, a solvent and a base, said solution having undergone substantially no polymer growth, for a time sufficient to form in situ said film on said substrate, removing and drying said coated substrate.
    Type: Grant
    Filed: February 23, 1990
    Date of Patent: December 29, 1992
    Assignee: Lord Corporation
    Inventors: Stephen R. Holmes-Farley, Lynn C. Yanyo
  • Patent number: 5166300
    Abstract: A non-yellowing urethane adhesive based on a polyurethane prepolymer which is prepared by reacting a specific combination of polyhydroxy compounds and an isocyanate compound. The polyhydroxy compounds include a polyalkylene ether diol, a polyalkylene ether triol, and a polyester polyol. The combination of these polyhydroxy compounds and an isocyanate compound results in an adhesive composition which has exceptionally good resistance to high temperature, humidity, and sustained UV radiation, particularly when applied to fabric-like materials.
    Type: Grant
    Filed: July 20, 1990
    Date of Patent: November 24, 1992
    Assignee: Lord Corporation
    Inventors: Kenneth A. Rumon, Walter C. Wilhelm, Dennis J. Damico