Patents by Inventor Urs Burckhardt

Urs Burckhardt 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 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
  • Amines having secondary aliphatic amino groups
    Patent number: 9290603
    Abstract: The present invention relates to novel amides having secondary amino groups, a process for preparing them, adducts of these amines and their uses. The amides can be prepared in a simple way from readily available starting materials. They and their adducts have, in particular, a low viscosity and are suitable as constituent of polyurethane and polyurea compositions having excellent processability and high flexibility, and also as constituent of epoxy resin compositions, in particular coatings.
    Type: Grant
    Filed: December 13, 2011
    Date of Patent: March 22, 2016
    Assignee: SIKA TECHNOLOGY AG
    Inventor: Urs Burckhardt
  • Asymmetric dialdimine-containing polyurethane composition
    Patent number: 9290608
    Abstract: The invention relates to moisture-curing compositions which comprise at least one aromatic isocyanate group-bearing polyisocyanate and at least one dialdimine of formula (I). The compositions according to the invention have a longer open time and at the same time a shorter curing time, they are storage-stable and cure without forming bubbles. They are especially suitable as adhesives, sealing agents, potting compounds or coating materials, the use as sealing agents being especially advantageous.
    Type: Grant
    Filed: July 14, 2014
    Date of Patent: March 22, 2016
    Assignee: SIKA TECHNOLOGY AG
    Inventor: Urs Burckhardt
  • LIQUID-APPLIED WATERPROOFING MEMBRANE COMPRISING OXAZOLIDINE AND ALDIMINE
    Publication number: 20160024318
    Abstract: The present invention describes a one-part moisture-curing liquid-applied waterproofing membrane including a polyurethane polymer and both an aldimine and an oxazolidine as blocked amine hardeners in a specific ratio range. The membrane has a low odor, a long shelf life stability, a low viscosity at low solvent content, a sufficiently long open time to allow hand application and cures fast to a solid elastic material. The liquid-applied waterproofing membrane can be suitable for roofing applications, possessing high strength, high elongation and good durability under outdoor weathering conditions in a broad temperature range.
    Type: Application
    Filed: January 21, 2014
    Publication date: January 28, 2016
    Applicant: Sika Technology AG
    Inventors: Michael BYRNE, Mark GATRELL, Alexander COWARD, Urs BURCKHARDT
  • POLYAMINES HAVING SECONDARY ALIPHATIC AMINO GROUPS
    Publication number: 20150368509
    Abstract: Novel polyamines having secondary amino groups, and a process for producing them, adducts of these polyamines and their uses. The polyamines can be prepared in a simple way from readily available reactants. They and their adducts have, in particular, a low viscosity and are suitable as constituent of polyurethane and polyurea compositions having excellent processability and high flexibility, and also constituent of epoxy resin compositions, especially coatings.
    Type: Application
    Filed: August 28, 2015
    Publication date: December 24, 2015
    Inventors: Pierre-Andre BUTIKOFER, Urs BURCKHARDT
  • TWO-COMPONENT COMPOSITION
    Publication number: 20150368466
    Abstract: The invention relates to a two-component composition consisting of a component A, which comprises at least one silane-functional polymer and at least one epoxy resin, and consisting of a component B, which comprises water and at least one amine epoxy adduct. The composition cures quickly into an elastic material with a high strength and durability and is particularly suitable as an adhesive and/or a sealant.
    Type: Application
    Filed: February 25, 2014
    Publication date: December 24, 2015
    Applicant: SIKA TECHNOLOGY AG
    Inventors: Steffen KELCH, Urs BURCKHARDT
  • LIQUID-APPLIED WATERPROOFING MEMBRANE FOR ROOFS COMPRISING TWO DIFFERENT ALDIMINES
    Publication number: 20150361299
    Abstract: A one-part moisture-curing liquid-applied waterproofing membrane is disclosed as including a polyurethane polymer and two different aldimines as blocked amine hardeners in a specific ratio range. The membrane has a low odour, a long shelf life stability, a low viscosity at low solvent content, a sufficiently long open time to allow hand application and cures fast to a solid elastic material. The liquid-applied waterproofing membrane is particularly suitable for roofing applications, possessing high strength, high elongation and good durability under outdoor weathering conditions in a broad temperature range.
    Type: Application
    Filed: January 21, 2014
    Publication date: December 17, 2015
    Applicant: SIKA TECHNOLOGY AG
    Inventors: Michael BYRNE, Mark GATRELL, Alexander COWARD, Urs BURCKHARDT
  • Low-emission hardener for epoxy resins
    Patent number: 9212287
    Abstract: The present invention concerns a low-odor, low-viscosity hardener for epoxy resins comprising the amine of formula (I), as well as a method for thinning of hardeners for epoxy resins by adding the amine of formula (I). These hardeners harden with epoxy resins quickly and without blushing to form films of high hardness and little brittleness, even without non-incorporable thinners such as benzyl alcohol. They are especially suitable for low-emission coatings.
    Type: Grant
    Filed: July 9, 2012
    Date of Patent: December 15, 2015
    Assignee: SIKA TECHNOLOGY AG
    Inventors: Urs Burckhardt, Andreas Kramer, Ursula Stadelmann, Edis Kasemi
  • LIQUID-APPLIED WATERPROOFING MEMBRANE FOR ROOFS COMPRISING A LONG-CHAIN ALDIMINE
    Publication number: 20150353770
    Abstract: The present invention describes a one-part moisture-curing liquid-applied waterproofing membrane having a polyurethane polymer, a long-chain aldimine and a hardener selected from an oxazolidine and another aldimine. The membrane has a low viscosity at low solvent content and a good shelf life stability and cures fast to form a solid elastic material. The membrane is particularly suitable for roofing applications, possessing high strength, high elongation and good durability under outdoor weathering conditions in a broad temperature range.
    Type: Application
    Filed: January 21, 2014
    Publication date: December 10, 2015
    Applicant: SIKA TECHNOLOGY AG
    Inventors: Urs BURCKHARDT, Ursula STADELMANN, Hans HABERLE, Michael BYRNE, Mark GATRELL, Alexander COWARD
  • LIQUID-APPLIED WATERPROOFING MEMBRANE FOR ROOFS COMPRISING A TRIALDIMINE
    Publication number: 20150353769
    Abstract: The present invention describes a one-part moisture-curing liquid-applied waterproofing membrane including a polyurethane polymer and both a trialdimine and a dialdimine as blocked amine hardeners in a specific ratio range. The membrane has a low odor, a long shelf life stability, a low viscosity at low solvent content, a sufficiently long open time to allow hand application and cures fast to a solid elastic material. The liquid-applied waterproofing membrane can be suitable for roofing applications, possessing high strength, high elongation and good durability under outdoor weathering conditions in a broad temperature range.
    Type: Application
    Filed: January 21, 2014
    Publication date: December 10, 2015
    Applicant: Sika Technology AG
    Inventors: Michael BYRNE, Mark GATRELL, Alexander COWARD, Urs BURCKHARDT
  • CURING AGENTS FOR LOW-EMISSION EPOXY RESIN PRODUCTS
    Publication number: 20150344615
    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: Application
    Filed: December 20, 2013
    Publication date: December 3, 2015
    Applicant: SIKA TECHNOLOGY AG
    Inventors: Edis KASEMI, Andreas KRAMER, Ursula STADELMANN, Urs BURCKHARDT
  • AMINE FOR LOW-EMISSION EPOXY RESIN PRODUCTS
    Publication number: 20150344406
    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: Application
    Filed: December 20, 2013
    Publication date: December 3, 2015
    Applicant: Sika Technology AG
    Inventors: Edis KASEMI, Andreas KRAMER, Ursula STADELMANN, Urs BURCKHARDT
  • CURING AGENTS FOR LOW-EMISSION EXPOXY RESIN PRODUCTS
    Publication number: 20150337076
    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: Application
    Filed: December 20, 2013
    Publication date: November 26, 2015
    Applicant: SIKA TECHNOLOGY AG
    Inventors: Edis KASEMI, Andreas KRAMER, Ursula STADELMANN, Urs BURCKHARDT
  • TWO-COMPONENT POLYURETHANE COMPOSITION
    Publication number: 20150259465
    Abstract: The invention relates to a two-component polyurethane composition containing a polyol, a polyisocyanate, a blocked amine and a bismuth(III)- or zirconium(IV)-catalyst. The composition is easy to process, cures quickly and without bubbles, and has unexpectedly high strengths when in its cured state. It is particularly suitable as an adhesive, sealant, coating or potting compound.
    Type: Application
    Filed: September 6, 2013
    Publication date: September 17, 2015
    Inventors: Urs Burckhardt, Steffen Kelch, Rita Cannas
  • MOISTURE-CURING HOT-MELT ADHESIVE COMPOUND CONTAINING POLYALDIMINE
    Publication number: 20150232721
    Abstract: Described is moisture-reactive hot-melt adhesive compounds, including at least one polyurethane polymer P which is solid at room temperature and which has isocyanate groups, at least one polyaldimine ALD of the formula (Ia) or (Ib), and at least one acid K in the form of an organic monocarbon acid, or dicarbon acid, or an organic monosulphonic acid, or disulphonic acid, or a compound which can be hydrolyzed to give one of these acids. These hot-melt adhesive compounds cure without bubbles and exhibit exceptionally quick crosslinking speed and good strength after crosslinking.
    Type: Application
    Filed: May 1, 2015
    Publication date: August 20, 2015
    Inventors: Urs Burckhardt, Kai Paschkowski, Martin Linnenbrink, Sven Rosenau
  • STRUCTURAL POLYURETHANE ADHESIVE HAVING A LOW GLASS TRANSITION TEMPERATURE
    Publication number: 20150203728
    Abstract: The invention relates to a two-component polyurethane adhesive having high strength and elasticity at a particularly low glass transition temperature, suitable as a structural adhesive. The adhesive according to the invention contains a triol, a diol, a polyamine, a polyisocyanate and a polyurethane polymer having isocyanate groups in certain ratios, and a Fe(III) or Ti(IV) or Zr(IV) or Hf(IV) chelate-complex-catalyst.
    Type: Application
    Filed: September 10, 2013
    Publication date: July 23, 2015
    Inventors: Urs Burckhardt, Steffen Kelch, Rita Cannas
  • POLYMER CONTAINING SILANE GROUPS
    Publication number: 20150133603
    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: Application
    Filed: May 22, 2013
    Publication date: May 14, 2015
    Inventors: Andreas Kramer, Urs Burckhardt
  • POLYMER CONTAINING SILANE GROUPS
    Publication number: 20150126678
    Abstract: The invention relates to low-viscosity polymers containing silane groups, said 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 hydroxysilanes which carry a secondary OH group. They are in particular obtained by reacting aminosilanes with specially substituted lactones.
    Type: Application
    Filed: May 22, 2013
    Publication date: May 7, 2015
    Applicant: SIKA TECHNOLOGY AG
    Inventors: Andreas Kramer, Urs Burckhardt