Patents by Inventor Andreas Kramer

Andreas Kramer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Curing agents for low-emission epoxy resin products
    Patent number: 9631047
    Abstract: The present invention relates to curing agents for epoxy resins, containing at least one adduct of a primary diamine and an aromatic monoepoxide, at least one primary diamine and at least one secondary diamine which is free of primary amino groups and free of hydroxyl groups. The curing agent is of low viscosity and cures, together with epoxy resins, rapidly and without blushing, even under damp, cold conditions, to form films of high hardness and low brittleness. It is particularly well suited for low-emission coatings that cure at room temperature.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: April 25, 2017
    Assignee: SIKA TECHNOLOGY AG
    Inventors: Edis Kasemi, Andreas Kramer, Ursula Stadelmann, Urs Burckhardt
  • Condensation products of amino-functional polymers
    Patent number: 9586889
    Abstract: A condensation product of at least one (hydroxymethyl)phenol and at least one polyoxyalkylene diamine and a process for the preparation thereof and the use thereof in the curing of epoxy resin systems are described.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: March 7, 2017
    Assignee: SIKA TECHNOLOGY AG
    Inventors: Juergen Finter, Ulrich Gerber, Edis Kasemi, Andreas Kramer
  • Amine for low-emission epoxy resin products
    Patent number: 9580381
    Abstract: An amine which can be used in epoxy resin compositions that cure at room temperature. The amine dilutes the composition highly effectively, allows rapid, trouble-free curing, even in cold and damp conditions, and reduces brittleness. The amine is particularly suitable as a constituent of a curing agent for low-emission epoxy resin compositions that cure at room temperature, in particular for floor coverings.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: February 28, 2017
    Assignee: SIKA TECHNOLOGY AG
    Inventors: Edis Kasemi, Andreas Kramer, Ursula Stadelmann, Urs Burckhardt
  • AMINE FOR LOW-EMISSION EPOXY RESIN PRODUCTS
    Publication number: 20170029364
    Abstract: The present invention relates to an amine of the formula (I) which is an adduct of 1,2-propylenediamine with an aryl monoglycidyl ether, to the use thereof as part of a hardener for epoxy resins, and to epoxy resin compositions obtained therewith. The amine of the formula (I) is preparable in a simple process in high purity, is of very low viscosity and is especially suitable for the curing of epoxy resins. It allows low-emission epoxy resin compositions which have good workability and which cure even under cold and damp conditions, quickly and without blushing effects, to form very hard products of high surface quality that display virtually no yellowing on exposure to light.
    Type: Application
    Filed: January 26, 2015
    Publication date: February 2, 2017
    Applicant: SIKA TECHNOLOGY AG
    Inventors: Edis KASEMI, Andreas KRAMER, Ursula STADELMANN, Urs BURCKHARDT
  • POLYMER CONTAINING SILANE GROUPS
    Publication number: 20160369036
    Abstract: The invention relates to polymers containing silane groups, to a method for their production and to their use as a component of curable compositions, in particular of moisture-curing sealants, adhesives or coatings that can be applied at ambient temperature, or of hot-melt adhesives containing silane groups. The polymers containing silane groups are obtained in particular by means of a special hydroxysilane which can be produced in particular from the reaction of lactides with aminosilanes.
    Type: Application
    Filed: July 24, 2014
    Publication date: December 22, 2016
    Applicant: SIKA TECHNOLOGY AG
    Inventors: Andreas KRAMER, Urs BURCKHARDT, Ursula STADELMANN
  • INTERNAL COMBUSTION ENGINE
    Publication number: 20160369672
    Abstract: An internal combustion engine has an oil circuit for supplying oil to powertrain components and cylinder head components of the internal combustion engine. At least one oil pump and one oil filter module are incorporated into the oil circuit. The oil circuit branches into a powertrain oil gallery and a cylinder head oil gallery in the oil filter module or downstream of the oil filter module in a flow direction. The oil circuit is designed so that a lower oil pressure prevails in the powertrain oil gallery than in the cylinder head oil gallery.
    Type: Application
    Filed: June 15, 2016
    Publication date: December 22, 2016
    Inventors: Simon Kuebler, Andreas Kramer, Norman Woeckel, Nico Bieber, Markus Spoth, Manuel Buljac
  • Heat-curing sealant compositions having fast skin formation and high tensile strength
    Patent number: 9512341
    Abstract: The present invention relates to heat-curing sealant compositions including at least epoxy resin, dicyanodiamide or an amine complex of a Lewis acid, polyurethane polymer (PUP) containing isocyanate groups and polyaldimine. These single component sealant compositions are characterized by a rapid skin formation and high tensile strength. Because of the short skin formation time, said compositions are optimally suitable for use as sealants in autobody work because they can be excellently layered on top of same.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: December 6, 2016
    Assignee: SIKA TECHNOLOGY AG
    Inventors: Antonio Voci, Andreas Kramer, Jan Olaf Schulenburg, Michael Gutgsell, Urs Burckhardt
  • Preparing chloride-free polyethyleneimines
    Patent number: 9481763
    Abstract: In a method of preparing polyalkyleneimines from alkyleneimines in the presence of a liquid solvent, and a catalyst, the preparing is effected semi-discontinuously in one reaction container. The preparing is optionally effected in the presence of further additives. Polyalkyleneimines obtained by such methods and formulations thereof likewise form part of the subject matter of the invention, especially those having a low proportion of chloride-containing compounds. Such polyalkyleneimines have uses in the field of medical technology, printing media, wastewater treatment, surface treatment, cosmetics, laundry detergents, biotechnology, packaging, electronics, paper, building construction chemistry, textiles, chromatography, ion exchangers, oil industry, ceramics, glass, membrane technology, catalysts, electroplating, biocides or wood protection.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: November 1, 2016
    Assignee: BASF SE
    Inventors: Stephan Hueffer, Andreas Kramer, Frank Dietsche
  • Hardeners for epoxy resins, which comprise aromatic amino groups
    Patent number: 9399697
    Abstract: The present invention relates to hardeners for epoxy resins, which contain secondary aliphatic and primary aromatic amino groups. They harden surprisingly quickly together with epoxy resins even under cold and humid conditions and without blushing effects to give films with a high degree of hardness. They are especially suitable for coatings with high resistance requirements.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: July 26, 2016
    Assignee: SIKA TECHNOLOGY AG
    Inventors: Andreas Kramer, Edis Kasemi
  • Hardeners for epoxy resins, which comprise pyridinyl groups
    Patent number: 9394399
    Abstract: The present invention relates to hardeners for epoxy resins, which contain secondary amino groups having pyridinyl groups. They harden surprisingly quickly together with epoxy resins even under cold and humid conditions and without producing blushing to give films with a high degree of hardness, the highest degrees of hardness being obtained with a surprisingly low amount of hardener required. They are especially suitable for low-emission coatings with high resistance requirements.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: July 19, 2016
    Assignee: SIKA TECHNOLOGY AG
    Inventors: Andreas Kramer, Edis Kasemi
  • HYDROXYMETHYL-CARBOXAMIDO-SUBSTITUTED SILANE AND ITS USE FOR CURABLE, SILANE-TERMINATED POLYMERS
    Publication number: 20160159833
    Abstract: Specific hydroxysilanes of formula (I), a method for the production thereof, the use thereof as a constituent of moisture-curing compositions, and silane-functional compounds produced therefrom, in particular silane-functional polymers and isocyanatosilanes. The hydrosilanes can be produced in a simple process with a high degree of purity and are storage-stable after production. Production from the reaction of lactides with aminosilanes is particularly advantageous. Hydroxysilane of formula (I), where n is 1 or 2.
    Type: Application
    Filed: July 24, 2014
    Publication date: June 9, 2016
    Applicant: SIKA TECHNOLOGY AG
    Inventors: Andreas KRAMER, Urs BURCKHARDT, Ursula STADELMANN
  • Curing agent for epoxy resin coatings
    Patent number: 9340701
    Abstract: The present invention relates to curing agents for epoxy resins including an alkylated polyethyleneimine. These curing agents have high functionality and a high content of secondary amino groups. Together with epoxy resins, they cure surprisingly quickly and without blushing effects even under humid and cold conditions to form films having very high cross-linking density. They are suited for coatings with high resistance requirements.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: May 17, 2016
    Assignee: SIKA TECHNOLOGY AG
    Inventors: Andreas Kramer, Urs Burckhardt, Ursula Stadelmann, Edis Kasemi
  • HYDROXYSILANE AND POLYMER CONTAINING SILANE GROUPS
    Publication number: 20160102110
    Abstract: Special hydroxysilanes, which can be obtained by reacting ?-(3,4-epoxycyclohexyl)alkyltrialkoxysilanes with secondary amines, and adducts of the hydroxysilanes in the form of polymers containing silane groups. The hydroxysilanes can be produced having high purity in a simple process and are very stable in storage after production. The polymers containing silane groups that can be obtained by means of the hydroxysilanes have advantageous properties. The polymers enable moisture-curing compositions, which contain no isocyanate groups and which are suitable as elastic adhesives and sealants.
    Type: Application
    Filed: May 21, 2014
    Publication date: April 14, 2016
    Applicant: SIKA TECHNOLOGY AG
    Inventors: Andreas KRAMER, Urs BURCKHARDT, Ursula STADELMANN
  • METHOD FOR PRODUCING HOT MELT ADHESIVES CONTAINING SILANE GROUPS
    Publication number: 20160096983
    Abstract: A method for producing a hot melt adhesive containing silane groups, in which at least one polyurethane polymer which contains isocyanate groups and is solid at room temperature is reacted with at least one hydroxysilane that is devoid of urea and thiourethane groups. The hot melt adhesive containing silane groups obtained from the method allows a low hazard classification, has a good degree of thermal resistance when melted such that, even upon application under prolonged heating, it does not tend towards premature thickening, releases no unpleasant odours, and crosslinks at room temperature without bubbles under the influence of moisture, resulting in an optically and mechanically high-quality and resistant adhesive connection.
    Type: Application
    Filed: November 25, 2013
    Publication date: April 7, 2016
    Inventors: Urs BURCKHARDT, Andreas KRAMER
  • Two-component structural adhesive which is impact resistant at room temperature
    Patent number: 9296931
    Abstract: The disclosure relates to the field of two-component epoxy resin compositions and to the use thereof as a repair adhesive, in particular in vehicle manufacturing. The two-component epoxy resin compositions according to the disclosure contain a curing component K2, which comprises between 1 and 10 wt. % of an amino group-terminated polyamide B, together with an epoxy resin component K1. The compositions show that the impact resistance is highly increased while an acceptable sheer strength is simultaneously retained.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: March 29, 2016
    Assignee: SIKA TECHNOLOGY AG
    Inventors: Karsten Frick, Jürgen Finter, Andreas Kramer, Ulrich Gerber
  • Hardener for epoxy resins
    Patent number: 9290609
    Abstract: The present invention concerns low-odor, low-viscosity hardeners for epoxy resins, including an amine with at least one amino group of formula (I) and an amine with at least one amino group of formula (II), wherein the amino groups of formulas (I) and (II) are present in a particular ratio. These hardeners harden quickly with epoxy resins and without blushing to form films of high hardness and good resistance. They are especially suitable for low-emission coatings.
    Type: Grant
    Filed: July 9, 2012
    Date of Patent: March 22, 2016
    Assignee: SIKA TECHNOLOGY AG
    Inventors: Andreas Kramer, Edis Kasemi
  • Silane/urea compound as a heat-activated curing agent for epoxide resin compositions
    Patent number: 9284447
    Abstract: Silanes of formula (I): or inorganic fillers whose surface is coated or derivatized with a silane of formula (I), are curing agents for epoxy resins that are activatable at elevated temperature. The thermosetting epoxy resin compositions allow a large reduction in the curing temperature without great impairment of their storage stability. They are therefore very well suited for single-component thermosetting epoxy adhesives, which in particular may contain impact modifiers.
    Type: Grant
    Filed: April 7, 2014
    Date of Patent: March 15, 2016
    Assignee: SIKA TECHNOLOGY AG
    Inventor: Andreas Kramer
  • CONDENSATION PRODUCTS OF AMINO-FUNCTIONAL POLYMERS
    Publication number: 20160016888
    Abstract: A condensation product of at least one (hydroxymethyl)phenol and at least one polyoxyalkylene diamine and a process for the preparation thereof and the use thereof in the curing of epoxy resin systems are described.
    Type: Application
    Filed: September 2, 2015
    Publication date: January 21, 2016
    Inventors: Juergen FINTER, Ulrich GERBER, Edis KASEMI, Andreas KRAMER
  • Thermally hardenable epoxy resin composition having an improved impact resistance at low temperatures
    Patent number: 9221969
    Abstract: The invention relates to compositions containing at least one epoxide adduct A that comprises an average of more than one epoxide group per molecule, at least one polymer B of formula (I), at least one thixotropic agent C based on a urea derivative in a non-diffusing carrier material, and at least one hardener D for epoxy resins, which is activated at an increased temperature. Said composition is used especially as an adhesive and is provided with an extraordinarily high impact peel working value, especially at low temperatures. The invention further relates to epoxide group-terminal impact strength modifiers of formula (I), which significantly increase the impact resistance in epoxy resin compositions, particularly two-component epoxy resin compositions.
    Type: Grant
    Filed: December 17, 2003
    Date of Patent: December 29, 2015
    Assignee: SIKA TECHNOLOGY AG
    Inventors: Andreas Kramer, Jurgen Finter
  • Amino group terminated impact strength modifier and use thereof in epoxy resin compositions
    Patent number: 9212251
    Abstract: The present disclosure relates to impact strength modifiers, the derivative products thereof, and the use thereof in producing two-component epoxy resin compositions. The disclosure in particular relates to amino group terminated impact strength modifiers prepared by reacting a polyurethane prepolymer having isocyanate groups, a primary diamine, and optionally at least one Michael acceptor. The two-component epoxy resin compositions thus formulated are characterized by a great increase in impact strength while retaining an acceptable tensile shear strength. The impact strength modifiers according to the disclosure and the epoxy resin compositions comprising same are in particular suitable for vehicle manufacturing.
    Type: Grant
    Filed: September 4, 2012
    Date of Patent: December 15, 2015
    Assignee: SIKA TECHNOLOGY AG
    Inventors: Karsten Frick, Jürgen Finter, Andreas Kramer, Ulrich Gerber