Patents Assigned to Sika Technology AG
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Publication number: 20240150615Abstract: A two-pack urethane-based adhesive that includes a second-pack liquid in which liquid components are inhibited from bleeding out and which can be inhibited from decreasing in thixotropic properties, and that gives cured products having, after aging, excellent adhesiveness. The two-pack urethane-based adhesive including a first-pack liquid, which includes a urethane prepolymer having an isocyanate group, and a second-pack liquid, which includes water, an active hydrogen compound (which is not water) having an active hydrogen capable of reacting with the isocyanate group, and cellulose nanofibers, wherein the first-pack liquid and the second-pack liquid each independently contain carbon black and/or an inorganic-based filler, the content of the cellulose nanofibers being 0.1-1.5 mass % with respect to the content of the water.Type: ApplicationFiled: December 14, 2021Publication date: May 9, 2024Applicant: SIKA TECHNOLOGY AGInventors: Yuichi MATSUKI, Megumi ABE, Kazuki MIURA
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Publication number: 20240133133Abstract: A modular expansion joint system with equidistance control. The modular expansion joint system includes transverse vehicle load bearing members which are positioned in a gap defined between adjacent spaced-apart structural members, support members positioned below the transverse vehicle load bearing members and extending across the expansion joint gap between the adjacent structural members, means positioned within the structural members for controlling movement of the support members, and means for controlling the spacing between the transverse vehicle load bearing members. The means for controlling the distance between the transverse vehicle load bearing members comprises a non-elastomeric compressive member, such as at least one coil spring which, which according to certain illustrative embodiments, maintains a substantially equal distance between transverse vehicle load bearing members.Type: ApplicationFiled: October 22, 2023Publication date: April 25, 2024Applicant: SIKA TECHNOLOGY AGInventors: Gary MOORE, Gregory ROSS, Paul PUMM, Tom BUCHANAN
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Publication number: 20240132405Abstract: A kit of parts suitable to form a waterproofing membrane consisting of a first component A including or consisting of a) 5-60 mass parts, preferably 30-60 mass parts, more preferably 45-55 mass parts, of a hydraulic binder, b) 0.5-15 mass parts, preferably 1-5 mass parts of at least one synthetic polymer, c) 20-80 mass parts, preferably 30-50 mass parts of aggregates, and d) optionally further additives and a second component B including or consisting of an aqueous emulsion of bitumen.Type: ApplicationFiled: February 9, 2022Publication date: April 25, 2024Applicant: SIKA TECHNOLOGY AGInventors: Julien KIGHELMAN, Luigi PERRINO, Jan KUPICH, Tobias BENIGHAUS, Matteo LONGO, Marco CAMURATI, Ezio BARUCCO, Luz GRANIZO FERNANDEZ, Francesco FAZZINI
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Patent number: 11965421Abstract: A method for waterproofing a substrate includes steps of: attaching a separation sheet to the surface of the substrate; and attaching a waterproofing membrane sheet to a surface of the separation sheet by a plurality of adhesive elements having a first and second major adhesive surface, wherein the separation sheet is a non-woven fabric sheet, or an embossed polyolefin membrane sheet and each adhesive element includes an adhesive layer composed of a pressure sensitive adhesive.Type: GrantFiled: December 2, 2021Date of Patent: April 23, 2024Assignee: SIKA TECHNOLOGY AGInventors: Otmar Pally, Isabel Siegrist
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Patent number: 11952493Abstract: A polyurethane composition, which contains at least one isocyanate-group-containing polymer, obtained from the reaction of at least one polyol with at least one diisocyanate, and at least one oxazolidine of the formula (I). The polyurethane composition allows one-component moisture-curing adhesives, sealants or coatings that have good storage stability, long open times and cure quickly to give a surprisingly non-tacky material having pronounced high-resilient properties.Type: GrantFiled: December 12, 2019Date of Patent: April 9, 2024Assignee: SIKA TECHNOLOGY AGInventors: Andreas Kramer, Urs Burckhardt
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Publication number: 20240110034Abstract: The invention relates to a dark, flat element, preferably a plastic, lacquer coating or fiber material, having reduced density, low heat conductivity and low solar absorption. The flat element has a relatively high reflection infrared range of the electromagnetic spectrum reduce heating by sunlight in the near infrared dark tinting in the visible range. Low density conductivity are obtained inter alia by inserting in the near in order to area despite and low heat light filling materials into the flat element. Said flat element can be used in places where surfaces are dark tinted for aesthetic or technical reasons but should not heat up in sunlight and should give off little heat when touched by hand or by other parts of the body. Other areas of application include surfaces which should have a heat insulating effect in addition to the above-mentioned characteristics.Type: ApplicationFiled: October 17, 2023Publication date: April 4, 2024Applicant: SIKA TECHNOLOGY AGInventor: Gerd HUGO
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Patent number: 11945901Abstract: A composition including a first component containing at least one polyol and at least one compound having at least one reactive group of the formula (I), and a second component containing at least one aromatic polyisocyanate and/or at least one polymer containing aromatic isocyanate groups. The composition has a long open time and, even in the case of small amounts of compound having at least one reactive group of the formula (I), enables elastic coatings having improved mechanical properties without causing problems with odor emissions or migration effects. It is thus particularly suitable as a coating for floors or roof areas.Type: GrantFiled: July 24, 2019Date of Patent: April 2, 2024Assignee: SIKA TECHNOLOGY AGInventors: Hans Häberle, Urs Burckhardt
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Patent number: 11945983Abstract: A sealing device includes a waterproofing membrane, an adhesive sealant layer, and optionally a release liner, wherein the adhesive sealant layer includes at least one elastomer, at least one at 25° C. liquid polyolefin resin, and at least one inert mineral filler. An adhesive sealant composition is used to form the adhesive sealant layer. The sealant device may be used to waterproof a substrate and provide a fully-adhered roof system. The adhesive sealant composition may be used to provide a self-healing roofing membrane.Type: GrantFiled: July 12, 2019Date of Patent: April 2, 2024Assignee: SIKA TECHNOLOGY AGInventors: Herbert Ackermann, Simon Schönbrodt, Carine Kerber, Robert Roskamp
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Publication number: 20240101880Abstract: A two-liquid type urethane adhesive composition includes a main agent and a curing agent. The main agent includes a poly isocyanate component, and the isocyanate group content in the main agent is 5 mass % or more of the total amount. The curing agent contains a compound having a plurality of active hydrogen-containing groups per molecule, and the compound having a plurality of active hydrogen-containing groups per molecule includes a high molecular weight polyol having two or three hydroxyl groups per molecule and a number average molecular weight of 1800 or greater, a low molecular weight polyol A having two hydroxyl groups per molecule and a number average molecular weight of 200 or less, and a low molecular weight polyol B having three hydroxyl groups per molecule, with at least one of the three hydroxyl groups being secondary hydroxyl groups, and a number average molecular weight of 1200 or less.Type: ApplicationFiled: March 2, 2022Publication date: March 28, 2024Applicant: SIKA TECHNOLOGY AGInventor: Daisuke TSUSHIMA
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Publication number: 20240092964Abstract: A method to reinforce a built structure, wherein an impregnation resin including a resin component including at least one epoxy resin and hardener component including at least one amine of the formula (I) is used to impregnate woven or stitched fabric, which is wrapped around and/or adhered onto built structure. The inventive method preferably serves to improve earthquake safety of buildings, as replacement for missing reinforcement inside concrete, for improvement of strength and ductility or for increase of payload of a built structure. It enables the application of an emission-free impregnation resin with low odour, which has a long open time and good penetration into the fabric, shows fast and reliable curing without tendency to blushing, and forms a dry, non-sticky surface. The cured impregnation resin has a high strength, a high glass transition temperature and good adhesion properties, enabling a good durability and long-term stability of the reinforced structure.Type: ApplicationFiled: October 20, 2020Publication date: March 21, 2024Applicant: SIKA TECHNOLOGY AGInventors: Edis KASEMI, Ursula STADELMANN, Ulrich GERBER, Christoph MAYER, David ELMENDORF, Amy RUSSO
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Method for structurally joining substrates having different coefficients of linear thermal expansion
Patent number: 11932786Abstract: A method of bonding substrates having different coefficients of thermal expansion, especially in the shell construction of modes of transport or white goods, using a one-component thermosetting epoxy resin composition containing toughness improvers based on terminally blocked polyurethane prepolymers.Type: GrantFiled: December 18, 2018Date of Patent: March 19, 2024Assignee: SIKA TECHNOLOGY AGInventors: Urs Rheinegger, Elyes Jendoubi, Dominique Gallo, Christian Krüger -
Publication number: 20240075707Abstract: A membrane used in waterproofing, roofing and tunneling applications, the membrane includes a barrier layer including thermoplastic polymer component and a contact layer bonded directly to at least portion of the barrier layer, the contact layer includes a mixture of mineral binder component, thermoplastic polymer component, and surfactant component. Also includes a method for producing the membrane, a method for waterproofing a substrate, to a waterproofed construction, to a method for sealing a substrate against water penetration and to a sealed construction for sealing a substrate against water penetration.Type: ApplicationFiled: November 7, 2023Publication date: March 7, 2024Applicant: SIKA TECHNOLOGY AGInventor: Matthias GÖSSI
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Patent number: 11912631Abstract: A method for the kinetic regulation of cementitious binders and/or cementitious binder compositions, the method including the steps of providing a cementitious binder, admixing at least one borate mineral to said cementitious binder, and optionally admixing an activator selected from the group consisting of CaO, Ca(OH)2, and/or CaSO4.Type: GrantFiled: June 12, 2020Date of Patent: February 27, 2024Assignee: SIKA TECHNOLOGY AGInventors: Luis Pegado, Emmanuel Gallucci, Arnd Eberhardt, Patrick Juilland, Denise Schönenberger, Letizia Caderas
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Publication number: 20240059364Abstract: A system for mounting insulating elements on structural elements in motor vehicles includes a plurality of insulating elements that are provided in at least one stack. The system further includes at least one structural element of a motor vehicle and a robot. Said robot is designed to be able to take each individual insulating element from the stack and arrange it on the structural element.Type: ApplicationFiled: February 3, 2022Publication date: February 22, 2024Applicant: SIKA TECHNOLOGY AGInventors: Henrik LINDGREN, Wolf-Peter SANDER
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Publication number: 20240059931Abstract: A hot-melt composition has excellent workability, hot flow resistance, balance between adhesion and detachability, volatility resistance, and hot creep resistance. The hot-melt composition includes: as thermoplastic elastomers, a styrene-based thermoplastic elastomer having a weight average molecular weight of 300,000 or more, a styrene-based thermoplastic elastomer having a styrene content of no greater than 20% by mass, and an olefin-based thermoplastic elastomer including an ethylene propylene rubber and/or butyl rubber; as tackifiers, an aromatic petroleum resin, a terpene phenol resin, and an amorphous polyalphaolefin; a high molecular weight paraffin oil having a weight average molecular weight of 1,000 or more; and a low molecular weight paraffin oil having a weight average molecular weight of less than 1,000.Type: ApplicationFiled: December 6, 2021Publication date: February 22, 2024Applicant: SIKA TECHNOLOGY AGInventor: Misaki MATSUMURA
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Publication number: 20240059943Abstract: Heat-curing epoxy resin compositions containing a curing agent in the form of a mixture of aromatic dicarboxylic dihydrazide with a dihydrazide chosen from the group consisting of glutaric dihydrazide, adipic dihydrazide, pimelic dihydrazide, 8,12-eicosadienedioic acid-1,20-dihydrazide and 4-isopropyl-2,5-dioxoimidazolidine-1,3-di(propionohydrazide). The epoxy resin compositions are particularly suitable for automotive body-in-white bonding, where after induction pre-curing without additional metal joining techniques the pre-cured adhesives are cured again in a further step at temperatures of around 180° C.Type: ApplicationFiled: March 22, 2022Publication date: February 22, 2024Applicant: SIKA TECHNOLOGY AGInventors: Dusko PARIPOVIC, Dominique GALLO, Antonio VOCI
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Publication number: 20240059612Abstract: The invention relates to the use of branched copolymers as dispersants of mineral binders, wherein the copolymers are formed from (1) at least one olefinically unsaturated carboxylic acid monomer (2) at least one olefinically unsaturated macromonomer of the general structure (I) where R1 is an olefinically unsaturated radical which has 2-10 carbon atoms and may optionally be substituted by oxygen and/or nitrogen, preferably vinyl, allyl, methallyl, vinyloxybutyl, isoprenyl, acryloyl and/or methacryloyl, X=O or NH, A is in each case independently C1-C10 alkylene, preferably ethylene, propylene and/or butylene, R2=C1-C16 alkyl, B is in each case independently C1-C10 alkylene, preferably ethylene, propylene and/or butylene, m is in each case independently an integer in the range of 0-350, preferably 2-200, more preferably 5-150, especially 7-30, n is an integer in the range of 0-100, preferably 1-100, more preferably 2-75, most preferably 5-55, p is 0 or 1, preferably 0, o is an integer in the rangeType: ApplicationFiled: November 25, 2020Publication date: February 22, 2024Applicant: SIKA TECHNOLOGY AGInventors: Jürg WEIDMANN, Jörg ZIMMERMANN, Lukas FRUNZ
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Publication number: 20240059828Abstract: A method of producing a hem flange bond wherein the method uses a one-component thermosetting epoxy resin composition including 20-60% by weight of at least one epoxy resin A, a latent curing agent for epoxy resins B, 10-40% by weight of at least one toughness improver D, and 4-12% by weight of a room temperature solid, crystalline polyester polyol PP. This enables compositions that are suitable for spray application and are not expressed from the hem flange in the crimping operation.Type: ApplicationFiled: December 13, 2021Publication date: February 22, 2024Applicant: SIKA TECHNOLOGY AGInventors: Dominique GALLO, Goran CAKIC, Noah MUNZINGER
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Publication number: 20240059936Abstract: An adhesive composition includes at least one acrylic compound A, a reaction product RP obtained by polyaddition reaction of at least one compound P and at least one hardener H, and at least one free radical initiator I. A method for preparing an adhesive composition, to an at least partially cured adhesive, to a sealing device, to a method producing a sealing device, and to a waterproofed structure.Type: ApplicationFiled: February 22, 2022Publication date: February 22, 2024Applicant: SIKA TECHNOLOGY AGInventors: Markus HAUFE, Cyrill GUT, Charlene DESMORTREUX
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Publication number: 20240052204Abstract: A method for adhesively bonding two substrates, including the steps: (a) applying a liquid, radiation-curable primer composition onto the surface of a first substrate; (b) curing the liquid, radiation-curable primer composition by applying radiation with a suitable wavelength, intensity and temporal exposure such that the radiation-curable primer composition is cured into a solidified, coherent or interrupted layer adhering to the surface of the substrate; (c) optionally storing the primed substrate for a time of up to 6 months; (d) applying a curable adhesive composition onto the cured primer composition on the substrate; (e) joining a second substrate to the adhesive composition on the first substrate such that an adhesive bond is formed between the substrates, wherein the surface of the second substrate to be adhesively bonded is optionally pre-treated to improve adhesion before step (e) is performed; (f) curing the curable adhesive composition.Type: ApplicationFiled: March 11, 2022Publication date: February 15, 2024Applicant: SIKA TECHNOLOGY AGInventors: Denise STORRER, Manuel BUCK, Reto DOHNER, Matthias DICK