Patents Examined by Paul R. Michl
  • Patent number: 6297312
    Abstract: A one-pack, low VOC, waterborne adhesion coating composition and method of making and using the same. The composition includes a coalescing agent, a halogenated resin, a modified anionic polyurethane dispersion blend, and a wetting and dispersing agent. It is suitable for coating a variety of substrates including polyolefinic substrates, in particular thermoplastic olefin resins, polypropylene, and operates without the addition of an adhesion promoter step at a low curing temperature.
    Type: Grant
    Filed: March 24, 2000
    Date of Patent: October 2, 2001
    Assignee: Apollo Coating Technologies, Inc.
    Inventor: I-Hsiung Wang
  • Patent number: 6296797
    Abstract: Process for producing a composite article from a polyacetal (component a) with directly molded-on functional elements made from one or more thermoplastic elastomers (component b), and wherein components a and b have differing hardness, and the material with the greater hardness (component a) is initially premolded in a first step in a mold, and then is either cooled and removed from the mold and then placed into another, larger cavity, or is partially removed from the mold, but remains in a portion of the mold, and is then moved to a larger cavity, or, without removal from the mold, remains in the same mold, which is enlarged by means of a movable device, and in a second step, by overmolding with the material with the lesser hardness (component b), the molding formed from component a is firmly bonded to this material and is then removed from the mold as a composite article.
    Type: Grant
    Filed: May 22, 2000
    Date of Patent: October 2, 2001
    Assignee: Ticona GmbH
    Inventors: Ursula Ziegler, Klaus Kurz, Frank Reil
  • Patent number: 6297297
    Abstract: A method of making a multilayered, resilient flooring containing a multicolored pattern is disclosed. The method includes applying a multiplicity of pigmented, thermoplastic microbeads to a top surface of a thermoplastic base layer to form a pattern layer on the base layer, which typically remains sufficiently hot so that it is molten or tacky when the microbeads are applied. The base layer and pattern layer can be covered with a substantially transparent material to form a clear top layer. The base layer can be formed by melting a dry blend comprising polyvinylchloride (PVC) to produce a molten PVC output, shaping the molten PVC output into a smooth PVC sheet of uniform thickness. The microbeads can be applied to the base layer using a stencil. The multiplicity of microbeads can include microbeads of two or more colors. Preferably, the microbeads are approximately spherical and have an average diameter between 0.002″ and 0.040″.
    Type: Grant
    Filed: March 6, 2000
    Date of Patent: October 2, 2001
    Assignee: Teknor Apex Company
    Inventors: Robert S. Brookman, Charles Gates, Lawrence Wallace
  • Patent number: 6294600
    Abstract: A power transmission belt comprising: a body comprising rubber comprising an ethylene-&agr;-olefin elastomer and N,N′-m-phenylene dimaleimide added in an amount of 0.2-10 parts by weight per 100 parts by weight of ethylene-&agr;-olefin elastomer.
    Type: Grant
    Filed: February 1, 2000
    Date of Patent: September 25, 2001
    Assignee: Mitsuboshi Belting, Ltd.
    Inventors: Toshimichi Takada, Kazutoshi Ishida, Isao Yoshida
  • Patent number: 6294604
    Abstract: The extrusion of polymeric materials, especially thermoplastic polymeric materials, requires a number of physical attributes in the polymer to be controlled during extrusion to effect desirable surface characteristics on the extruded polymer. Extrusion additives have been provided for the improvement of these attributes and characteristics. The present invention describes an additive system for extrudable thermoplastic polymers, extrudable polymer compositions containing the additive system, and extrusion processes using polymers containing the additive system of this invention. The extrusion additive of the present invention comprises: (i) a fluorocarbon polymer, (ii) a poly(oxyalkylene) polymer, (iii) magnesium oxide, and (iv) optionally a stabilizer. The extrudable composition of the invention comprises: (A) an extrudable polymer (e.g., a predominant amount, such as at least 50% by weight of solids), and (B) an effective amount of the stabilized processing aid (extrusion additive).
    Type: Grant
    Filed: March 6, 1998
    Date of Patent: September 25, 2001
    Assignee: Dyneon LLC
    Inventors: Koen Focquet, Greta Dewitte, Stephen E. Amos
  • Patent number: 6291573
    Abstract: The present invention relates to a process for preparing polymer powders from aqueous polymer dispersions in which the dispersed polymer P comprises in copolymerized form: i) at least one vinylaromatic monomer (a), ii) 1,3-butadiene as monomer (b), and iii) one or more monomers (c) different than the monomers (a) and (b), which comprises drying the aqueous polymer dispersion in the presence of polyvinyl alcohol as drying agent. The present invention also relates to the polymer powders obtainable by this process and to the use of these polymer powders as binders in paints, varnishes and coating compositions generally, in adhesives, and for modifying mineral construction materials. The present invention also relates to mineral construction materials in the form of dry formulations comprising the polymer powders of the invention.
    Type: Grant
    Filed: December 14, 1998
    Date of Patent: September 18, 2001
    Assignee: BASF Aktiengesellschaft
    Inventors: Joachim Pakusch, Bernd Reck, Peter Claassen, Hans-Jürgen Denu, Eckehardt Wistuba, Claudia Heibel
  • Patent number: 6291581
    Abstract: The invention relates to a radiation curable binder composition for powder paint formulations. The binder composition comprises: a) a solid polymer with an amount of unsaturation of between 300 and 1800 g per mole of unsaturated group (WPU) and with a molecular weight (Mn) of between 800 and 5000 g per mole and b) a crosslinker comprising units of a prepolymer having a molecular weight (Mn) higher than 400 and units of a vinyl ether or an unsaturated alcohol, the number of polymerizable unsaturations of the crosslinker being higher than or equal to 2.
    Type: Grant
    Filed: March 8, 2000
    Date of Patent: September 18, 2001
    Assignee: DSM N.V.
    Inventors: Richard A. Bayards, Evert S De Jong, Saskia Udding-Louwrier
  • Patent number: 6288151
    Abstract: Novel alkyl aminoalkyl cyclic urea compounds of the structural formula: wherein each of m, n, and o are independently 1 or 2, p is 0 or 1, R1 is C1 to C4 linear or branched alkyl, R2 is C4 to C10 linear or branched alkyl, or, alternately, CHR1R2 forms a C6 to C12 substituted or unsubstituted cycloalkyl. These novel alkylated aminoalkyl cyclic ureas are useful as surfactants for reducing equilibrium and dynamic surface tension in water-based formulations, particularly coating, ink, and agricultural formulations.
    Type: Grant
    Filed: October 14, 1999
    Date of Patent: September 11, 2001
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Kevin Rodney Lassila, Kristen Elaine Minnich, Richard Van Court Carr
  • Patent number: 6288174
    Abstract: An acrylic polymer powdery material, which is a particularly useful powdery material as a modifier for cementitious material, comprising fine particles of a core-shell structure comprising a core polymer being comprised of an acrylic polymer having a glass transition temperature (Tg) of −20-+15° C., a weight average molecular weight of 100000-2000000, an acid value of 25 mg KOH/g or less and a shell polymer being comprised of an acrylic polymer having a Tg of 50-90° C., a weight average molecular weight of 100000-2000000, an acid value of 30-130 mg KOH/g, wherein the weight ratio of the core polymer and shell polymer is 30/70-80/20 (% by weight).
    Type: Grant
    Filed: February 16, 1999
    Date of Patent: September 11, 2001
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Yukihiro Ikegami, Toshihiro Kasai
  • Patent number: 6287359
    Abstract: Granule mixtures composed of a) 5 to 45% by weight of coated fertilizer granules (granules a), composed of a1) a core, comprising a customary fertilizer, and a2) a coat, comprising a coat polymer, and b) 55 to 95% by weight of non-coated fertilizer granules, comprising a customary fertilizer (granules b).
    Type: Grant
    Filed: July 29, 1998
    Date of Patent: September 11, 2001
    Assignee: K+S Aktiengesellschaft
    Inventors: Klaus Erhardt, Klaus Horchler von Locquenghien, Reinhardt Hähndel, Jürgen Dressel, Hans Lang
  • Patent number: 6284814
    Abstract: A method for introducing relatively large quantities of liquid additives into polymer-containing composition includes increasing the free volume between polymer chains of the polymer(s) present in the composition and introducing at least one liquid additive into the free volume between the polymer chains. The method can optionally include the introduction of low melting additives into the polymer This method allows for the production of polymer masterbatchs from a wide variety of liquid additives that can contain upwards of 50% by weight active components. Such masterbatches can be a particularly useful technique for introducing biocides and/or antimicrobials into polymeric materials.
    Type: Grant
    Filed: August 31, 1998
    Date of Patent: September 4, 2001
    Inventor: Chakra V. Gupta
  • Patent number: 6284829
    Abstract: The polyorganosiloxane composition resulting in a silicone elastomer of high thermal conductivity, which can reach and even exceed 1.2 W/m.K, the elastomer retaining an elongation at break of greater than 30%, comprises at least one functional polyorganosiloxane which crosslinks by a polyaddition or polycondensation reaction or by the radical route, optionally a polyorganohydrosiloxane, a catalyst, optionally a reinforcing filler and a filler intended to increase the thermal conductivity which is present in the composition in the proportion of 35 to 70% by volume with respect to the total composition, this filler comprising at least two groups of particles of very different mean diameters, a first group having a mean particle diameter of between 10 and 40 mm, present in a predominant amount in the filler, and a second group having a mean particle diameter of less than 5 mm.
    Type: Grant
    Filed: June 9, 2000
    Date of Patent: September 4, 2001
    Assignee: Rhodia Chimie
    Inventors: Bernard Dalbe, Yves Giraud
  • Patent number: 6283360
    Abstract: The present invention relates to a composition for preventing creeping of a flux for soldering, which is free from a problem from the viewpoint of the global environment or working environment. The present invention provides a composition for preventing creeping of a flux for soldering, consisting of a composition comprising a polymer containing polymer units of an unsaturated ester containing a polyfluoroalkyl group, a fluorine-type surfactant and an aqueous medium. Further, the present invention provides a method for soldering by means of the composition. Furthermore, the present invention provides an electronic part or printed board soldered by the method. Still further, the present invention provides an electric appliance employing such an electronic part or printed board.
    Type: Grant
    Filed: February 3, 2000
    Date of Patent: September 4, 2001
    Assignee: Seimi Chemical Co., Ltd.
    Inventors: Seisaku Kumai, Yutaka Fukatsu, Shunji Odaka
  • Patent number: 6284828
    Abstract: To provide a polyacetal resin composition excellent in friction and abrasion resistance properties by improving the compatibility, dispersibility and interfacial adhesion between the polyacetal resin and an olefinic polymer. The polyacetal resin composition comprises: (A) 100 parts by weight of a polyacetal resin; (B) 0.5 to 100 parts by weight of a specified, modified olefinic polymer; (C) 0.01 to 10 parts by weight of an alkylene glycol polymer containing a primary or secondary amino group(s) and having a number-average molecular weight of 400 to 500,000; and (D) 0.1 to 20 parts by weight of an inorganic filler.
    Type: Grant
    Filed: April 14, 1999
    Date of Patent: September 4, 2001
    Assignee: Polyplastics Co., Ltd.
    Inventor: Katsunori Takayama
  • Patent number: 6284818
    Abstract: In the present invention, provided are i) an encapsulant composition comprising an epoxy resin, a curing agent, an inorganic filler, an adduct of triphenylphosphine with benzoquinone, and a hydrous bismuth nitrate oxide; the inorganic filler being mixed in an amount of from 70% by volume to 85% by volume based on the total weight of the encapsulant composition, and the hydrous bismuth nitrate oxide being mixed in an amount of from 2.5 parts by weight to 20 parts by weight based on 100 parts by weight of the epoxy resin, and ii) an electronic device having an encapsulating member comprising a cured product of this encapsulant composition.
    Type: Grant
    Filed: March 8, 2000
    Date of Patent: September 4, 2001
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Tatsuo Kawata, Hiroyuki Sakai, Terumi Tsukahara
  • Patent number: 6284826
    Abstract: A strippable paint to be coated on a coating film of a real or permanent paint of an automotive vehicle body. The strippable paint comprises a nonaqueous dispersion type resinous liquid including a solvent containing aromatic hydrocarbon in an amount ranging from 30 to 45% by weight relative to the solvent, and acrylic copolymer resin particle dispersed in the solvent in an amount ranging from 20 to 30% by weight relative to the nonaqueous dispersion type resinous liquid. The acrylic copolymer resin particle is formed of acrylic copolymer having a chain structure including at least one of acrylic acid monomer and methacrylic acid monomer having ethylenic unsaturated bond and carboxyl group. The acrylic copolymer resin particle has an acid value of not lower than 90 and a glass transition temperature ranging from 25 to 40° C.
    Type: Grant
    Filed: February 29, 2000
    Date of Patent: September 4, 2001
    Assignee: Nissan Motor Co. LTD
    Inventors: Keigo Kinoshita, Kunio Oki, Akihide Katano, Tetsushi Sakaki
  • Patent number: 6281264
    Abstract: The present invention discloses a method for enhancing the wear-resistance of polymers by crosslinking them, especially before irradiation sterilization. In particular, this invention presents the use of chemically crosslinked ultrahigh molecular weight polyethylene in in vivo implants.
    Type: Grant
    Filed: September 27, 1999
    Date of Patent: August 28, 2001
    Assignees: The Orthopaedic Hospital, University of Southern California
    Inventors: Ronald Salovey, Harry A. McKellop, Fu-Wen Shen
  • Patent number: 6281293
    Abstract: The present invention is directed to a polymer blend having improved properties comprising: (A) 90 to 10% by weight of a thermoplastic or thermosetting resin; and (B) 10 to 90% by weight of a shear-treated rubber obtained by subjecting a nitrile group-containing highly saturated copolymer rubber to a high-shear treatment in the presence of an anti-oxidant so as to lower the Mooney viscosity of the copolymer rubber by 15 units or more, said shear-treated rubber having a Mooney viscosity of 5 to 135, a molecular weight distribution (Mw/Mn) of 3.0 to 5.0 and a storage stability characterized by that the incremental increase in the Mooney viscosity of said shear-treated rubber during a 30 day storage under an ambient condition in air is not more than 10 units.
    Type: Grant
    Filed: September 28, 1999
    Date of Patent: August 28, 2001
    Assignee: Nippon Zeon Co., Ltd.
    Inventor: Yoshinori Fujii
  • Patent number: 6281282
    Abstract: Polymer powders redispersible in aqueous solution, their use in cosmetic, pharmaceutical or crop protection formulations and a process for preparing polymer powders redispersible in aqueous solution comprising copolymers carrying free acid or base groups and, if appropriate, auxiliaries, which comprises adjusting the pH of the dispersion prior to drying by the addition of at least one buffer system to a pH of from 2.0 to 6.5 in the case of copolymers carrying free acid groups or a pH of from pH 7.5 to 12 in the case of copolymers carrying free base groups.
    Type: Grant
    Filed: October 27, 1998
    Date of Patent: August 28, 2001
    Assignee: BASF Aktiengesellschaft
    Inventors: Jörg Breitenbach, Karl Kolter, Angelika Schmitt
  • Patent number: 6277925
    Abstract: Curable polymer compositions comprising a crosslinkable polymeric component; an initiator component; and an allyl compound component.
    Type: Grant
    Filed: March 18, 1999
    Date of Patent: August 21, 2001
    Assignees: Hercules Incorporated, Plastics Technology Corporation
    Inventors: Atanu Biswas, Paul Joseph Caronia, John Salvatore Furno, Laurence Herbert Gross, Michael John Keogh, Frederick F. Nelson, Tuyen T. Nguyen