Patents Represented by Attorney James E. Piotrowski
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Patent number: 8349123Abstract: The invention provides adhesive and sealant compositions prepared from urethane prepolymers. The urethane prepolymers are obtained by reacting the novel urethane diols, polyester polyols and polyether polyols with an excess of diisocyanate. The urethane diols are prepared by reacting excess low molecular weight diols and diisocyanates. The invention is particularly useful in end use applications such as panel lamination.Type: GrantFiled: April 1, 2008Date of Patent: January 8, 2013Assignee: Henkel CorporationInventors: Yue S. Zhang, Louis A. Moore
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Patent number: 8333542Abstract: A curable hot melt adhesive is used as a primer on a book block. A conventional thermoplastic hot melt is then applied on top of the reactive hot melt before the cover material is positioned.Type: GrantFiled: October 24, 2001Date of Patent: December 18, 2012Assignee: Henkel AG & Co. KGaAInventors: Dave G. Carter, Malcolm Graham, Kim Tagesen
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Patent number: 8324299Abstract: A moisture-curable hot-melt adhesive having an excellent balance of environmental friendliness, compatibility of ingredients, early-stage adhesive strength, heat resistance after moisture curing, tack free time, etc. and a method of manufacture for this hot-melt adhesive. A moisture-curable hot-melt adhesive which contains a urethane polymer that has a terminal isocyanate group and a moisture-curable hot-melt adhesive that contains urethane modified resin, has a residual percentage of isocyanate compound of 5 wt. % or less, and has a heat-resistant softening temperature after moisture curing of 60° C. or higher, has an excellent balance of the aforementioned. Urethane modified resin can be obtained by reacting a resin derivative that has a hydroxyl group with an isocyanate compound, and a moisture-curable hot-melt adhesive can be produced by mixing urethane-modified resin, polymer, and isocyanate compound.Type: GrantFiled: May 26, 2011Date of Patent: December 4, 2012Assignee: Henkel CorporationInventors: Hideyuki Yamakoshi, Tsuyoshi Tamogami
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Patent number: 8263703Abstract: The present invention is related to an one component self-crosslinking reactive siloxane-terminated polypropylene oxide emulsion and a process for preparing the same. In the inventive process, using a reactive siloxane-terminated polypropylene oxide (SPPO) as raw material and a polyether-modified polysiloxane as protection colloid, a waterborne SPPO emulsion with excellent storage stability and freeze-thaw stability was prepared through phase inversion emulsification in the presence of composite emulsifying agent. And this process has some advantages such as low capital investment for equipment, simple procedure, easy operation and low production cost. And the obtained SPPO emulsion can be used as basic raw materials for the production of environmental friendly waterborne products such as paints, binders, sealing agents etc.Type: GrantFiled: June 28, 2010Date of Patent: September 11, 2012Assignee: Henkel AG & Co. KGaAInventors: Kan Chengyou, Hou Zhao Sheng, Li Zeping, Xie Wei, Zhao Zhiqing, Yon Zhang, Thomas Fay-Oy Lim
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Patent number: 8197990Abstract: A fuel cell, having improved sealing against leakage, includes a sealant disposed over the peripheral portions a membrane electrode assembly such that the cured sealant penetrates a gas diffusion layer of the membrane electrode assembly. The sealant is applied through liquid injection molding techniques to form cured sealant composition at the peripheral potions of the membrane electrode assembly. The sealant may be thermally cured at low temperatures, for example 130° C. or less, or may be cured at room temperature through the application of actinic radiation.Type: GrantFiled: January 16, 2007Date of Patent: June 12, 2012Assignee: Henkel CorporationInventors: Matthew P. Burdzy, Brian R. Einsla, Kevin J. Welch
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Patent number: 8197989Abstract: A fuel cell, having improved sealing against leakage, includes a fuel cell component having a cured sealant, wherein the cured sealant includes a telechelic-functional polyisobutylene, an organhydrogenosilane crosslinker, a platinum catalyst and a photoinitiator. The fuel cell component may be a cathode flow field plate, an anode flow field plate, a resin frame, a gas diffusion layer, an anode catalyst layer, a cathode catalyst layer, a membrane electrolyte, a membrane-electrode-assembly frame, and combinations thereof.Type: GrantFiled: January 16, 2007Date of Patent: June 12, 2012Assignee: Henkel CorporationInventors: Anthony F. Jacobine, John G. Woods, Steven T. Nakos, Matthew P. Burdzy, Brian R. Einsla, Kevin J. Welch
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Patent number: 8163833Abstract: Melt adhesive containing 5 to 40 wt.-% of at least one ethylene-based copolymer and at least one C3 to C20-?-olefin obtained through metallocene-catalyzed polymerization, 10 to 65 wt.-% of at least one tackifying resin, 0 to 35 wt.-% of a plasticizer, 0.01 to 30 wt.-% additives and additional ingredients selected from stabilizers, adhesion promoters, fillers or pigments, waxes and/or other polymers, wherein the total should amount to 100%, characterized in that copolymer A is a block copolymer that exhibits a substantially even elastic behavior in the range of 0° C. to 25° C., measured as the ratio of the storage modulus E? according to (E?0C?E?25C)/E?25C<1.5.Type: GrantFiled: March 4, 2011Date of Patent: April 24, 2012Assignee: Henkel AG & Co. KGaAInventors: Thomas Moeller, Volker Erb, Marcus Heemann, Dirk Kasper, Eckhard Puerkner, Bernhard Herlfterkamp
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Patent number: 8101681Abstract: Monocomponent water-hardening adhesive/sealant compositions comprising mixtures of at least one silane-functional polyoxyalkylene prepolymer and at least one silane-functional polyolefin are described. These compositions may optionally comprise other nonpolar plasticizers, as well as catalysts, fillers, and adhesives. Such adhesive/sealant compositions exhibit outstanding adhesion to plastic substrates and to painted surfaces, whereby the adhesion is maintained even after storage in wet conditions.Type: GrantFiled: June 12, 2009Date of Patent: January 24, 2012Assignee: Henkel AG & Co. KGaAInventors: Matthias Kohl, Manfred Pröbster
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Patent number: 8092632Abstract: The invention relates to a method for bonding metal or plastic substrates, in which the substrate is freed from adhering impurities, a dual-component polyurethane adhesive is directly applied onto at least one substrate without prior application of a primer and the substrates are joined and cured. According to the invention, the dual-component polyurethane adhesive is composed of a component A, containing 1 to 98% by weight with reference to the component A of an oleochemic polyol, 1 to 10% by weight of at least one three-, four- or five-functional polyol with a molecular weight of 90 to 750 g/mol, 2.5 to 60% by weight of at least on aldehyde resin, keton resin and/or keton/aldehyde resin with a molecular weight of 250 to 25000 g/mol, and 0 to 70% by weight of other additives and a component B, containing at least one polyisocyanate, the NCO/OH ratio of the isocyanate component to the polyol component ranging between 1.0 and 2.0:1.Type: GrantFiled: November 5, 2009Date of Patent: January 10, 2012Assignee: Henkel AG & Co. KGAAInventors: Lothar Thiele, Karin Jonscher
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Patent number: 8088850Abstract: The present invention provides curable poly(acrylate) compositions, cured reaction products of which demonstrate improved resistance to shrinkage when exposed to hydrocarbon fluids, such as transmission fluids and oil-and fuel-based fluids.Type: GrantFiled: May 30, 2007Date of Patent: January 3, 2012Assignee: Henkel CorporationInventors: Chiu-Sing Lin, Shingo Tsuno, Rajat K. Agarwal, Thomas Fay-Oy Lim
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Patent number: 8067508Abstract: This disclosure relates to a curable composition comprising at least one polymer A with at least one reactive silyl group and at least one polymer B with at least one reactive silyl group, the number of reactive silyl groups in the polymer A being greater or equal to the number of silyl groups in polymer B and the reactive silyl groups being capable of cross-linking to form siloxane bonds. The disclosure also relates to preparations containing a composition of this type and to the use of said compositions.Type: GrantFiled: April 1, 2009Date of Patent: November 29, 2011Assignee: Henkel AG & Co. KGaAInventors: Daniela Braun, Johann Klein, Thomas Bachon, Andreas Bolte, Christiane Kunze
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Patent number: 8002149Abstract: The present invention provides a child-resistant closure for a container. The closure comprises a dispensing nozzle, a cap for the dispensing nozzle, inter-engaging formations and a resiliently deformable element. The inter-engaging formations provided on the closure hold the cap to the nozzle in an interengaged assembly thereof. The resiliently deformable element biases the cap and the nozzle apart. The inter-engaging formations comprise a retaining slot for receiving a retainer and a retainer for engagement with the retaining slot. The retaining slot, retainer and resiliently deformable element are arranged so that the cap and the nozzle are retained interengaged in the interengaged assembly by bias from the resiliently deformable element. The release of the interengaging formations is achieved by applying sufficient pressure axially to the assembly to overcome the bias of the resiliently deformable element, and sufficient turning force to move the retainer out through the opening of the retaining slot.Type: GrantFiled: August 10, 2007Date of Patent: August 23, 2011Assignee: Loctite (R&D) LimitedInventor: Gary Leonard
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Patent number: 7993484Abstract: Two-component assembly adhesives with high early tack, with component A containing 0.5 to 50% of polysaccharides, water, and water-soluble salt, and component B containing water, water-soluble salt, and polysaccharides, the adhesive also containing a water-soluble, water-dispersible polymer.Type: GrantFiled: March 17, 2006Date of Patent: August 9, 2011Assignee: Henekl AG & Co. KGaAInventors: Friedhelm Koepnick, Martin Majolo, Horst Beck
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Patent number: 7977445Abstract: Aqueous, storage-stable emulsions of ?-silyl terminated polymers are useful as adhesives, sealing compounds and coating materials. The ?-silyl terminated polymers correspond to the general formula (I): in which R1 is a linear or branched alkyl or alkoxy group containing 1 to 4 carbon atoms, R2 and R3 independently of one another are linear or branched alkyl groups containing 1 to 4 carbon atoms, R4 and R6 independently of one another are divalent organic connecting groups, R5 is a hydrophobic divalent polymer group; and R7 is a CH2SiR1(OR2)(OR3) group, in which R1, R2 and R3 have the above meaning or R7 stands for a group that lends the polymer of the general formula (I) the property of self-emulsification in water by forming an oil in water emulsion.Type: GrantFiled: November 13, 2007Date of Patent: July 12, 2011Assignee: Henkel AG & Co. KGaAInventors: Erik Hattemer, Lothar Unger, Andreas Ferencz, Thomas Bachon, Daniela Braun, Tamara Schmidt, Werner Juettner
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Patent number: 7955658Abstract: The present disclosure provides a building material composition which is suitable in particular for use as a bitumen-free sealant for sealing structures and contains a polymer dispersion or a corresponding redispersion powder, in particular based preferably on emulsion polymers which are redispersible in an aqueous medium, together with polystyrene particles, hollow ceramic and synthetic microspheres and, if appropriate, at least one binder and, if appropriate, further additives. The sealant according to the invention can in principle be formulated as a 1C or 2C application system. In addition to excellent sealing properties, as can conventionally be achieved only with bitumen-containing sealants, the bitumen-free building material composition according to the invention shows in particular excellent shrinkage behavior after application.Type: GrantFiled: September 1, 2006Date of Patent: June 7, 2011Assignee: Henkel AG & Co. KGaAInventors: Manfred Grasse, Udo Windhövel, Katharina Lehmkuehler, Caroline Pfefferle
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Patent number: 7931970Abstract: A two-component polyurethane adhesive comprising a polyol component, which contains 2 to 30 wt. % of at least one polyester diol having a molecular weight greater than 1000 g/mole, 5 to 35 wt. % of at least one 3 to 14 functional polyol, 5 to 35 wt. % hydrophobic polyols, 2 to 65 wt. % further additives or auxiliary agents, wherein the sum is to results as 100%, and a cross-linking component made of polyisocyanates in a NCO/OH ratio of 0.9:1 to 1.5:1, wherein the cross-linked adhesive has a Tg greater than 50%.Type: GrantFiled: June 9, 2010Date of Patent: April 26, 2011Assignee: Henkel AG & Co. KGaAInventors: Nicole Schlingloff, Dorothee Ursula Bogedain, Michael Gansow
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Patent number: 7910647Abstract: Non-ionic surfactants are used to reduce the adhesion of microorganisms to surfaces of materials by coating such surfaces with the surfactants or incorporating the surfactants into the materials.Type: GrantFiled: June 8, 2006Date of Patent: March 22, 2011Assignee: Henkel AG & Co. KGaAInventors: Mirko Weide, Stefan Frey, Juergen Stodt, Andreas Bolte, Roland Breves, Thomas Gerke
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Patent number: 7862800Abstract: This invention relates to sterilized cyanoacrylate adhesive compositions with x-ray imagining capabilities, methods of making such compositions, and methods of using such compositions.Type: GrantFiled: January 10, 2006Date of Patent: January 4, 2011Assignee: Henkel AG & Co. KGaAInventors: Kenneth N. Broadley, Noeleen B. Swords, Clare P. Grealis
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Patent number: 7829615Abstract: Reactive hot melt adhesives with long open time and/or high green strength prepared by using an acrylic polymer component containing a high molecular weight acrylic polymer.Type: GrantFiled: June 9, 2003Date of Patent: November 9, 2010Assignee: Henkel AG & Co. KGaAInventor: Andrew Trevithick Slark
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Patent number: D627639Type: GrantFiled: November 2, 2009Date of Patent: November 23, 2010Assignee: Henkel AG & Co. KGaAInventors: Jan Ziegler, Kai Ruthe-Steinsiek, Matthias Rhode, Birgit Rhode, legal representative, Sonja Pfennings, legal representative