Patents Examined by Paul R. Michl
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Patent number: 6297312Abstract: 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: GrantFiled: March 24, 2000Date of Patent: October 2, 2001Assignee: Apollo Coating Technologies, Inc.Inventor: I-Hsiung Wang
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Patent number: 6296797Abstract: 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: GrantFiled: May 22, 2000Date of Patent: October 2, 2001Assignee: Ticona GmbHInventors: Ursula Ziegler, Klaus Kurz, Frank Reil
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Patent number: 6297297Abstract: 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: GrantFiled: March 6, 2000Date of Patent: October 2, 2001Assignee: Teknor Apex CompanyInventors: Robert S. Brookman, Charles Gates, Lawrence Wallace
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Patent number: 6294600Abstract: 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: GrantFiled: February 1, 2000Date of Patent: September 25, 2001Assignee: Mitsuboshi Belting, Ltd.Inventors: Toshimichi Takada, Kazutoshi Ishida, Isao Yoshida
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Patent number: 6294604Abstract: 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: GrantFiled: March 6, 1998Date of Patent: September 25, 2001Assignee: Dyneon LLCInventors: Koen Focquet, Greta Dewitte, Stephen E. Amos
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Patent number: 6291573Abstract: 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: GrantFiled: December 14, 1998Date of Patent: September 18, 2001Assignee: BASF AktiengesellschaftInventors: Joachim Pakusch, Bernd Reck, Peter Claassen, Hans-Jürgen Denu, Eckehardt Wistuba, Claudia Heibel
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Patent number: 6291581Abstract: 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: GrantFiled: March 8, 2000Date of Patent: September 18, 2001Assignee: DSM N.V.Inventors: Richard A. Bayards, Evert S De Jong, Saskia Udding-Louwrier
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Patent number: 6288151Abstract: 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: GrantFiled: October 14, 1999Date of Patent: September 11, 2001Assignee: Air Products and Chemicals, Inc.Inventors: Kevin Rodney Lassila, Kristen Elaine Minnich, Richard Van Court Carr
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Patent number: 6288174Abstract: 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: GrantFiled: February 16, 1999Date of Patent: September 11, 2001Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Yukihiro Ikegami, Toshihiro Kasai
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Patent number: 6287359Abstract: 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: GrantFiled: July 29, 1998Date of Patent: September 11, 2001Assignee: K+S AktiengesellschaftInventors: Klaus Erhardt, Klaus Horchler von Locquenghien, Reinhardt Hähndel, Jürgen Dressel, Hans Lang
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Patent number: 6284814Abstract: 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: GrantFiled: August 31, 1998Date of Patent: September 4, 2001Inventor: Chakra V. Gupta
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Patent number: 6284829Abstract: 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: GrantFiled: June 9, 2000Date of Patent: September 4, 2001Assignee: Rhodia ChimieInventors: Bernard Dalbe, Yves Giraud
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Patent number: 6283360Abstract: 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: GrantFiled: February 3, 2000Date of Patent: September 4, 2001Assignee: Seimi Chemical Co., Ltd.Inventors: Seisaku Kumai, Yutaka Fukatsu, Shunji Odaka
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Patent number: 6284828Abstract: 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: GrantFiled: April 14, 1999Date of Patent: September 4, 2001Assignee: Polyplastics Co., Ltd.Inventor: Katsunori Takayama
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Patent number: 6284818Abstract: 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: GrantFiled: March 8, 2000Date of Patent: September 4, 2001Assignee: Hitachi Chemical Company, Ltd.Inventors: Tatsuo Kawata, Hiroyuki Sakai, Terumi Tsukahara
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Patent number: 6284826Abstract: 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: GrantFiled: February 29, 2000Date of Patent: September 4, 2001Assignee: Nissan Motor Co. LTDInventors: Keigo Kinoshita, Kunio Oki, Akihide Katano, Tetsushi Sakaki
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Patent number: 6281264Abstract: 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: GrantFiled: September 27, 1999Date of Patent: August 28, 2001Assignees: The Orthopaedic Hospital, University of Southern CaliforniaInventors: Ronald Salovey, Harry A. McKellop, Fu-Wen Shen
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Patent number: 6281293Abstract: 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: GrantFiled: September 28, 1999Date of Patent: August 28, 2001Assignee: Nippon Zeon Co., Ltd.Inventor: Yoshinori Fujii
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Patent number: 6281282Abstract: 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: GrantFiled: October 27, 1998Date of Patent: August 28, 2001Assignee: BASF AktiengesellschaftInventors: Jörg Breitenbach, Karl Kolter, Angelika Schmitt
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Patent number: 6277925Abstract: Curable polymer compositions comprising a crosslinkable polymeric component; an initiator component; and an allyl compound component.Type: GrantFiled: March 18, 1999Date of Patent: August 21, 2001Assignees: Hercules Incorporated, Plastics Technology CorporationInventors: Atanu Biswas, Paul Joseph Caronia, John Salvatore Furno, Laurence Herbert Gross, Michael John Keogh, Frederick F. Nelson, Tuyen T. Nguyen