Patents by Inventor Andrea Kramer

Andrea 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).

  • Amine for low-emission epoxy resin products
    Patent number: 9796661
    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: Grant
    Filed: January 26, 2015
    Date of Patent: October 24, 2017
    Assignee: SIKA TECHNOLOGY AG
    Inventors: Edis Kasemi, Andreas Kramer, Ursula Stadelmann, Urs Burckhardt
  • Polymer containing silane groups
    Patent number: 9790315
    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: Grant
    Filed: July 24, 2014
    Date of Patent: October 17, 2017
    Assignee: SIKA TECHNOLOGY AG
    Inventors: Andreas Kramer, Urs Burckhardt, Ursula Stadelmann
  • Curing agents for low-emission epoxy resin products
    Patent number: 9790319
    Abstract: The present invention relates to curing agents for epoxy resins, containing at least one adduct of trimethylhexamethylenediamine and cresyl glycidyl ether. The curing agent has a low viscosity and cures quickly together with epoxy resins even in moist, cold conditions and without blushing to form films with a high hardness and surface quality, which scarcely undergo yellowing upon exposure to light. It is particularly suited for low-emission room temperature-curing coatings.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: October 17, 2017
    Assignee: SIKA TECHNOLOGY AG
    Inventors: Edis Kasemi, Andreas Kramer, Ursula Stadelmann, Urs Burckhardt
  • Polymer containing silane groups
    Patent number: 9765177
    Abstract: Methods for producing a polymer with end groups of formula (I), which is free of isocyanate groups, wherein at least one hydrosilane of formula (II) is reacted with at least one polyurethane polymer containing isocyanate groups, where R1 stands for an alkyl group having 1 to 12 C atoms, R2 stands for a hydrogen atom or for an alkyl group having 1 to 12 C atoms, which optionally comprises ether oxygen or amine nitrogen, R3 stands for a linear or a branched alkylene or cycloalkylene residue having 1 to 20 C atoms, optionally with aromatic parts, and optionally with one or more heteroatoms, R4 stands for an alkyl group having 1 to 6 C atoms, R5 stands for an alkyl group having 1 to 10 C atoms, which optionally comprises one or more ether oxygens, n stands for 2 or 3 or 4, and x stands for 0 or 1.
    Type: Grant
    Filed: May 22, 2013
    Date of Patent: September 19, 2017
    Assignee: SIKA TECHNOLOGY AG
    Inventors: Andreas Kramer, Urs Burckhardt
  • Hydroxysilane and polymer containing silane groups
    Patent number: 9751900
    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: Grant
    Filed: May 21, 2014
    Date of Patent: September 5, 2017
    Assignee: SIKA TECHNOLOGY AG
    Inventors: Andreas Kramer, Urs Burckhardt, Ursula Stadelmann
  • FAST-CURING COMPOSITION CONTAINING SILANE GROUPS
    Publication number: 20170240689
    Abstract: A polymer preparation consisting of silane-functional polymers, including at least one polymer having at least one terminal group of formula (I) and at least one further silane terminal group, a method for producing the polymer preparation and a composition containing it. The polymer preparation has a surprisingly low viscosity, cross-links surprisingly quickly even without the use of EHS-critical catalysts such as organotin compounds or DBU, and hardens into a non-sticky material with good strength and elasticity. It is especially well suited as an elastic adhesive or sealant or as an elastic coating. The invention further relates to a method for lowering the viscosity of a polymer having at least one terminal group of formula (I) by introducing at least one further silane terminal group.
    Type: Application
    Filed: November 23, 2015
    Publication date: August 24, 2017
    Applicant: SIKA TECHNOLOGY AG
    Inventors: Andreas KRAMER, Urs BURCKHARDT
  • HYDROXY SILANE AS AN ADHESION PROMOTER OR CROSS-LINKING AGENT
    Publication number: 20170240780
    Abstract: A hydroxy silane of formula (I) used as an adhesion promoter or cross-linking agent for adhesives, sealants or coatings. The invention also relates to an adhesion-promoter composition containing the hydroxy silane of formula (I) and to adhesives, sealants or coatings containing the hydroxy silane of formula (I). The hydroxy silane of formula (I) has a surprisingly long shelf-life and exhibits an excellent action as an adhesion promoter and/or cross-linking agent.
    Type: Application
    Filed: November 23, 2015
    Publication date: August 24, 2017
    Applicant: SIKA TECHNOLOGY AG
    Inventors: Andreas KRAMER, Urs BURCKHARDT
  • FAST-CURING COMPOSITION CONTAINING SILANE GROUPS
    Publication number: 20170240688
    Abstract: A composition containing two different silane-functional polymers, only one of the two polymers having terminal groups of formula (I). The composition has a surprisingly rapid skin forming time and low viscosity, crosslinks quickly even without the use of EHS-critical catalysts such as organotin compounds or DBU, and cures to a non-sticky material with good strength and elasticity. Also relates to a method for accelerating the curing of a silane-crosslinking composition by adding to it a further silane-functional polymer having terminal groups of formula (I).
    Type: Application
    Filed: November 23, 2015
    Publication date: August 24, 2017
    Applicant: SIKA TECHNOLOGY AG
    Inventors: Andreas KRAMER, Urs BURCKHARDT
  • AMINE FOR LOW-EMISSION EPOXY RESIN COMPOSITIONS
    Publication number: 20170226278
    Abstract: An amine of the formula (I) and a process for its preparation by reductive alkylation of 1,2-propylenediamine with a di- or trifunctional carbonyl compound and hydrogen. The amine of the formula (I) is low in viscosity and in odour, high in reactivity towards epoxides and outstanding in its compatibility with other amines and with epoxy resins. The amine of the formula (I) allows access to low-emission epoxy resin compositions which have good processing qualities, cure rapidly even at low temperatures and form high-quality, high-hardness plastics having an attractive surface.
    Type: Application
    Filed: August 7, 2015
    Publication date: August 10, 2017
    Applicant: SIKA TECHNOLOGY AG
    Inventors: Edis KASEMI, Andreas KRAMER, Ursula STADELMANN, Urs BURCKHARDT
  • AMINE FOR LOW-EMISSION EPOXY RESIN COMPOSITIONS
    Publication number: 20170218114
    Abstract: An amine of the formula (I) for use as hardener for epoxy resins, hardeners for epoxy resins containing the amine of the formula (I) and resultant epoxy resin compositions which more particularly can be used as low-emission room-temperature-curing epoxy-resin coatings with high hardness and surface quality. The amine of the formula (I) has little odour and is a very successful diluent for epoxy resin compositions. It is more particularly obtained by reductive alkylation from 1,2-propylenediamine and an aldehyde or ketone.
    Type: Application
    Filed: August 7, 2015
    Publication date: August 3, 2017
    Applicant: SIKA TECHNOLOGY AG
    Inventors: Edis KASEMI, Andreas KRAMER, Ursula STADELMANN, Urs BURCKHARDT
  • Polymer containing silane groups
    Patent number: 9714316
    Abstract: The invention relates to low-viscosity polymers containing silane groups, the polymers curing rapidly under the effect of moisture to form an elastic material with good heat resistance and being in particular suitable for elastic adhesives and sealants. The polymers containing silane groups are based on special hydoxysilanes which carry a secondary OH group. They are in particular obtained by reacting epoxysilanes with secondary amines.
    Type: Grant
    Filed: May 22, 2013
    Date of Patent: July 25, 2017
    Assignee: SIKA TECHNOLOGY AG
    Inventors: Andreas Kramer, Urs Burckhardt
  • CURING AGENTS FOR LOW-EMISSION EPOXY RESIN PRODUCTS
    Publication number: 20170183444
    Abstract: 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, are disclosed. 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: Application
    Filed: March 10, 2017
    Publication date: June 29, 2017
    Applicant: SIKA TECHNOLOGY AG
    Inventors: Edis KASEMI, Andreas KRAMER, Ursula STADELMANN, Urs BURCKHARDT
  • 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