公开(公告)号：US20220025101A1

公开(公告)日：2022-01-27

申请号：US17312112

申请日：2019-12-18

Applicant: SIKA TECHNOLOGY AG

Inventor： Antonio CORSARO ,  Fabien CHOFFAT

IPC: C08G18/22 ,  C08G18/76 ,  C08G18/32 ,  C08G18/38 ,  C08G18/24 ,  C08G18/48

Abstract: A polyurethane composition consisting of a first component and a second component, wherein the first component contains a polyol having an OH functionality in the range from 1.5 to 4 and an average molecular weight in the range from 250 to 15 000 g/mol, a diol having two hydroxyl groups joined via a C2 to C9 carbon chain, and a compound having at least one thiol group. In addition, one of the two components additionally contains at least one metal catalyst for the reaction of hydroxyl groups and isocyanate groups that is able to form thio complexes, and the molar ratio of all NCO groups in the polyisocyanurates to all OH groups in the polyols is 0.9:1-1.2:1, and the polyurethane composition, directly after mixing of the components at 23° C., is free-flowing, and has a viscosity of

公开(公告)号：US20220145144A1

公开(公告)日：2022-05-12

申请号：US17441635

申请日：2020-05-28

Applicant: SIKA TECHNOLOGY AG

Inventor： Klaas MENNECKE ,  Fabien CHOFFAT ,  Ursula STADELMANN

IPC: C09J163/00 ,  C08G18/28 ,  C08G18/48 ,  C08G18/76 ,  C08G18/75 ,  C08G59/22 ,  C08G59/24 ,  C08G59/50 ,  C08G59/62 ,  C08L63/00 ,  C09D163/00

Abstract: A composition including: —at least one silane group-containing polymer with a silicon content ranging from 0.6 to 2 wt. %, obtained by reacting at least one isocyanate group-containing polymer and at least one amino-, mercapto-, or hydroxysilane, —at least one liquid epoxy resin, and—at least one polyamine with at least three amine hydrogens which are reactive towards epoxy groups. The composition facilitates adhesives, coatings, or sealing compounds with a good storage stability, a fast curing time, even in the event of moisture or humidity, a surprisingly high degree of strength while having a high degree of elasticity, a high degree of resistance against further tearing, a high degree of resistance in particular against glycol/water mixtures, and a high degree of adhesion to many substrates. When used on metals such as steel or aluminum, the composition protects same against corrosion.

公开(公告)号：US20220073738A1

公开(公告)日：2022-03-10

申请号：US17419256

申请日：2020-02-12

Applicant: SIKA TECHNOLOGY AG

Inventor： Klaas MENNECKE ,  David HOFSTETTER ,  Fabien CHOFFAT

IPC: C08L71/02 ,  C08K3/013 ,  C08K5/00 ,  C08K5/549

Abstract: A moisture-curable composition, including between 0.6 and 15.0 wt.-% of at least one organic polymer containing reactive silane groups, between 70 and 95 wt.-% of at least one filler, at least one dispersion additive, optionally at least one catalyst for the curing of silane-functional polymers and up to 10 wt.-% of at least one plasticizer, characterized in that said filler is selected from the list consisting of aluminium oxide, aluminium hydroxide, boron nitride, aluminium nitride, zinc oxide, silver, copper, aluminium, chalk, aluminosilicate, graphite, and any mixture of these fillers; with the proviso that the amount of chalk in the filler does not exceed 25 wt.-% of the total amount of filler. The moisture-curable composition shows excellent thermal conductivity and is particularly suitable as adhesive, gap filler, or sealant suitable for e-coat applications and battery bonding especially in electric automobile assembly.

公开(公告)号：US20250163305A1

公开(公告)日：2025-05-22

申请号：US18840116

申请日：2023-04-05

Applicant: SIKA TECHNOLOGY AG

Inventor： Denise STORRER ,  Fabien CHOFFAT

IPC: C09J133/10

Abstract: A two-component composition for use as a free-radically curing adhesive for bonding of corner angles, frames or profiles in window, door, container or vehicle construction. The composition is composed of a component K1 and a component K2. The composition contains at least 50% by weight, preferably between 60% by weight and 75% by weight, of filler based on the mixture of the components K1 and K2. The compositions have good mechanical properties and adhesion to substrates employed in these applications, they additionally have a low viscosity and they can be formulated without volatile, strongly malodorous monomers such as MMA.

公开(公告)号：US20240417534A1

公开(公告)日：2024-12-19

申请号：US18715938

申请日：2022-12-16

Applicant: SIKA TECHNOLOGY AG

Inventor： David HOFSTETTER ,  Andrea BATTISTI ,  Marcel OERTLI ,  Christian EYHOLZER ,  Fabien CHOFFAT

IPC: C08K3/22 ,  C08K5/521 ,  H01M10/653 ,  H05K7/20

Abstract: A two-component moisture-curable composition, especially suitable as thermally conductive gap filler, in particular with flame-retardant properties. It is thus highly suitable for use in e-mobility battery bonding or electronic equipment.

公开(公告)号：US20170101564A1

公开(公告)日：2017-04-13

申请号：US15315979

申请日：2015-06-03

Applicant: SIKA TECHNOLOGY AG

Inventor： Fabien CHOFFAT

IPC: C09J175/04 ,  C08K5/101 ,  C08G18/22 ,  C08G18/75 ,  C09K3/10 ,  C08G18/48 ,  C08G18/34 ,  C08G18/66 ,  C08G18/28 ,  C08K3/26 ,  C08G18/32

CPC classification number: C09J175/04 ,  C08G18/227 ,  C08G18/289 ,  C08G18/3203 ,  C08G18/343 ,  C08G18/4854 ,  C08G18/4866 ,  C08G18/6692 ,  C08G18/755 ,  C08G65/33348 ,  C08G65/336 ,  C08G2190/00 ,  C08K3/26 ,  C08K5/0016 ,  C08K5/101 ,  C08K5/12 ,  C08K2003/265 ,  C08K2201/019 ,  C09K3/1018 ,  C09K3/1021 ,  C08G18/10

Abstract: The present invention provides a moisture-curing sealant comprising a) at least one silane-functional polymer and b) at least one catalyst for the crosslinking of the silane-functional polymer, said sealant being free of organotin compounds and having, in the cured state, a secant modulus at 100% elongation and 23° C., determined to ISO 8339, of less than 0.4 MPa and a resilience at 100% elongation, determined to ISO 7389, of greater than 70%. The sealant is especially suitable as a construction sealant of the 25LM class according to DIN EN ISO 11600, especially as a facade sealant, or as a sealant according to ASTM C719 Class 50.

公开(公告)号：US20250019558A1

公开(公告)日：2025-01-16

申请号：US18714284

申请日：2022-11-23

Applicant: SIKA TECHNOLOGY AG ,  EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS-UND FORSCHUNGSANSTALT

Inventor： Urs BURCKHARDT ,  Ingo BURGERT ,  Fabien CHOFFAT ,  Philippe GRÖNQUIST ,  Steffen KELCH ,  Sanja KOSTIC ,  Tim MAMIE ,  Klaas MENNECKE ,  Ursula STADELMANN ,  Stefan VÖGTLI ,  Andrea FRANGI ,  Sandro STUCKI

IPC: C09D15/00 ,  C04B28/04 ,  C04B111/00 ,  C09D5/00 ,  C09D163/00

Abstract: A method for producing a laminate, wherein a wooden element is provided, the wooden element is coated on the top side with a an adhesive that is applied in liquid form and includes at least one polymer that is liquid at room temperature and contains silane groups, at least one liquid epoxy resin and at least one amine hardener, the applied adhesive is covered with a layer of a liquid cementitious composition while still wet, and the liquid cementitious composition and the adhesive each cure. The method enables the durable joining of wooden elements and cementitious elements in an easy-to-implement, wet-on-wet method. The laminates obtained from the method are comparatively light, stable and robust and are especially suitable as sustainable components in above-ground construction.

公开(公告)号：US20250011517A1

公开(公告)日：2025-01-09

申请号：US18708678

申请日：2022-11-21

Applicant: SIKA TECHNOLOGY AG

Inventor： Denise STORRER ,  Fabien CHOFFAT

IPC: C08F290/06 ,  C08G18/67 ,  C08K3/26 ,  C08K3/36 ,  C08K5/13 ,  C08K5/14 ,  C08K5/18 ,  C08K5/521 ,  C09J4/06 ,  C09J5/04

Abstract: A two-component composition, component K1, including at least one (meth)acrylate monomer, at least one elastomer having (meth)acrylate end groups, at least one additive selected from the group consisting of activator for free-radical curing, inhibitor for free-radical curing, filler and adhesion promoter; and a component K2 including at least one initiator for free-radical curing wherein the elastomer is a polyurethane (meth)acrylate produced from the reaction of at least one diol including at least one dimer fatty acid-based polyester diol with at least one diisocyanate and a (meth)acrylic acid, a (meth)acrylamide or a (meth)acrylate ester having a hydroxyl group, wherein the at least one diol initially reacts with the diisocyanate which is present in stoichiometric excess and the resulting isocyanate-terminated polyurethane is subsequently reacted with the (meth)acrylic acid, the (meth)acrylamide or the (meth)acrylate ester having a hydroxyl group to afford the elastomer.

公开(公告)号：US20240279456A1

公开(公告)日：2024-08-22

申请号：US18560998

申请日：2022-06-10

Applicant: SIKA TECHNOLOGY AG

Inventor： Denise STORRER ,  Fabien CHOFFAT

IPC: C08L33/14 ,  C08L33/10 ,  C09J5/00 ,  C09J11/08 ,  C09J133/10 ,  C09J133/14

CPC classification number: C08L33/14 ,  C08L33/10 ,  C09J5/00 ,  C09J11/08 ,  C09J133/10 ,  C09J133/14 ,  C08L2201/08 ,  C08L2205/03 ,  C08L2207/53 ,  C09J2433/00 ,  C09J2475/00

Abstract: A two-component composition including a component K2, including at least one initiator for free-radical curing, and a component K1, including a) at least one monomer A according to formula (IIIa),






b) at least one monomer B according to formula (IIIb),










c) optionally between 10% by weight and 20% by weight, based on component K1, of at least one elastomer C of formula (I),










and d) optionally at least one additive selected from core-shell polymer, activator for free-radical curing, inhibitor for free-radical curing, filler and adhesion promoter. Provided that component K1 contains between 25% by weight and 75% by weight, based on component K1, of the mixture of monomer A and monomer B, and the mass ratio of monomer A to monomer B in component K1 is between 1:1 and 9:1.

公开(公告)号：US20230406993A1

公开(公告)日：2023-12-21

申请号：US18035647

申请日：2022-02-01

Applicant: SIKA TECHNOLOGY AG

Inventor： Semjon ROTH ,  Stefan MEISTER ,  Antonio CORSARO ,  Fabien CHOFFAT

IPC: C08G18/48 ,  C08K7/28 ,  C08G18/22 ,  C08G18/32 ,  C08G18/38 ,  C08G18/66 ,  C08G18/76

CPC classification number: C08G18/4816 ,  C08K7/28 ,  C08G18/227 ,  C08G18/3206 ,  C08G18/3876 ,  C08G18/4841 ,  C08G18/4829 ,  C08G18/6674 ,  C08G18/7671

Abstract: The present invention relates to a polyol composition consisting of a first component and a second component, wherein the first component contains a polyol having had OH functionality in the range from 1.5 to 4 and an average molecular weight in the range from 250 to 15'000 g/mol, a diol having at least two hydroxyl groups joined via a C2 to C9 carbon chain, and a compound having at least one thiol group. In addition, one of the two components additionally comprises at least one metal catalyst for the reaction of hydroxyl groups and isocyanate groups which is capable of forming thio complexes, and where the molar ratio of all NCO groups of the polyisocyanates I to all OH groups of the polyols=0.9:1-1.4:1, especially 1.05:1-1.3:1, and where the composition contains, in at least one of the two components, between 3% and 25% by weight, based on the overall composition, of at least one type of microscopic hollow beads, wherein the microscopic hollow beads have a compressive strength, measured to ASTM D3102-72, of at least 10 MPa and a density of at least 0.2 kg/L, and wherein the composition contains, in at least one of the two components, between 2.5% and 7.5% by weight, based on the overall composition, of at least one desiccant, wherein the desiccant is an aluminosilicate.
Such a composition permits arbitrary adjustment of the open time within particular limits, and enables achievement of long open times with subsequent very rapid curing of the composition. The composition of the invention has excellent strength and hardness, and is grindable without difficulty. The composition of the invention is particularly suitable as filling compound, especially for wood.