Patents by Inventor Ursula Stadelmann

Ursula Stadelmann 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).

  • Patent number: 10662280
    Abstract: An amine of formula (I) in a curing agent for epoxy resins, a curing agent for epoxy resins containing the amine of formula (I) and resultant epoxy resin compositions which can be used particularly as low-emission room-temperature-curing epoxy resin coatings demonstrating good workability, rapid curing, a high degree of hardness and high surface quality. The amine of formula (I) is low-odour, can be handled well at room temperature even without dilution, and can be produced at high purity in a simple process.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: May 26, 2020
    Assignee: SIKA TECHNOLOGY AG
    Inventors: Urs Burckhardt, Ursula Stadelmann, Andreas Kramer, Edis Kasemi
  • Patent number: 10584268
    Abstract: The invention relates to the use of an epoxy resin composition, containing at least one reaction product from the reaction of at least one amine of formula (I) with at least one carbonyl compound of formula (II) and hydrogen, as a cold curing primer or adhesive. Primers or adhesives of this type cure rapidly and trouble-free at ambient temperature, even at cold temperatures such as 10 or 5° C., suffer remarkably little yellowing and are free from toxic phenol compounds such as phenol, tert-butylphenol or nonylphenol. The primer has a particularly low viscosity and is particularly suitable for priming porous mineral substrates.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: March 10, 2020
    Assignee: SIKA TECHNOLOGY AG
    Inventors: Edis Kasemi, Andreas Kramer, Ursula Stadelmann, Urs Burckhardt
  • Publication number: 20200040215
    Abstract: A process for preparing a curing agent for epoxy resins, in which an amine mixture including at least one parent amine of the formula (I) and at least one alkylated amine of the formula (II) is reacted or adducted with at least one glycidyl ether of the formula (III). The amine mixture is especially a reaction mixture from the partial alkylation of the amine of the formula (I). The process described enables, with low energy expenditure and high space-time yield, curing agents of low odor, low toxicity, low viscosity and high reactivity for epoxy resins and epoxy resin products that cure rapidly at ambient temperatures and especially also under cold conditions and at the same time enable high-quality coatings having an even, shiny surface.
    Type: Application
    Filed: March 13, 2018
    Publication date: February 6, 2020
    Applicant: SIKA TECHNOLOGY AG
    Inventors: Edis KASEMI, Andreas KRAMER, Ursula STADELMANN, Urs BURCKHARDT
  • Publication number: 20200017629
    Abstract: A curing agent for epoxy resins, containing at least one amine adduct of formula (I) which can be obtained as an addition product of a mixture of a primary diamine, a monoalkylated other diamine and a polyepoxide. The curing agent makes it possible to produce low-odor, low-emission epoxy resin products, in particular coatings, which have a surprisingly low viscosity, a high curing rate, a high final hardness, and a surprisingly appealing surface.
    Type: Application
    Filed: March 13, 2018
    Publication date: January 16, 2020
    Applicant: SIKA TECHNOLOGY AG
    Inventors: Edis KASEMI, Andreas KRAMER, Ursula STADELMANN, Urs BURCKHARDT
  • Patent number: 10487237
    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: Grant
    Filed: January 21, 2014
    Date of Patent: November 26, 2019
    Assignee: SIKA TECHNOLOGY AG
    Inventors: Urs Burckhardt, Ursula Stadelmann, Hans Haberle, Michael Byrne, Mark Gatrell, Alexander Coward
  • Patent number: 10442956
    Abstract: The present disclosure relates to a two-component composition containing a polymer polyol, a dial chain extender, an aldimine of formula (I), optionally additional polyols and diphenylmethandiisocyanates in the two components. The composition is particularly suitable as a manually applicable solvent-free liquid film for coating and/or sealing floors and roofs. It also has a long open time, cures quickly and without complications in a wide temperature and humidity range, has a high level of strength and is weather resistant.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: October 15, 2019
    Assignee: SIKA TECHNOLOGY AG
    Inventors: Hans Häberle, Urs Burckhardt, Ursula Stadelmann
  • Patent number: 10428252
    Abstract: A two-component composition, containing at least one silane-group-containing polymer that is liquid at room temperature, at least one epoxide liquid resin, at least one polyetheramine, and at least one aminosilane or mercaptosilane. The composition has low odor, cures quickly and without blistering at room temperature, and, when cured, forms a tough elastic material of high strength, high adhesive force, and good thermal resistance that has no tendency toward yellowing or substrate discoloration. The composition is excellently suitable as a tough elastic adhesive for structural adhesive joints in the field of construction and in industrial production.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: October 1, 2019
    Assignee: SIKA TECHNOLOGY AG
    Inventors: Urs Burckhardt, Steffen Kelch, Ursula Stadelmann
  • Publication number: 20190177472
    Abstract: A curing agent for epoxy resin compositions containing at least one amine of formula (I) and at least one amine of formula (II). The curing agent is a low-odor, low-viscosity, low-toxicity curing agent and has a low propensity for carbamatization and a high reactivity toward epoxy resins. It enables low-odor and low-emission epoxy resin products which are readily processable and which even at low temperatures and high humidities undergo rapid and problem-free curing to afford high-quality plastics having a high hardness and a regular, non-tacky surface with high gloss.
    Type: Application
    Filed: February 14, 2017
    Publication date: June 13, 2019
    Applicant: SIKA TECHNOLOGY AG
    Inventors: Edis KASEMI, Andreas KRAMER, Ursula STADELMANN, Urs BURCKHARDT
  • Patent number: 10301423
    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 odor 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: Grant
    Filed: August 7, 2015
    Date of Patent: May 28, 2019
    Assignee: SIKA TECHNOLOGY AG
    Inventors: Edis Kasemi, Andreas Kramer, Ursula Stadelmann, Urs Burckhardt
  • Patent number: 10287388
    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: Grant
    Filed: August 7, 2015
    Date of Patent: May 14, 2019
    Assignee: SIKA TECHNOLOGY AGH
    Inventors: Edis Kasemi, Andreas Kramer, Ursula Stadelmann, Urs Burckhardt
  • Patent number: 10221344
    Abstract: An amine of formula (I) which is particularly suitable for use as a curing agent for epoxy resins. The amine of formula (I) is devoid of non-incorporable toxic phenols, and is low-viscosity and pale in color. It allows the production of easily-workable, low-emission or emission-free epoxy resin products which cure rapidly even at relatively low ambient temperatures thus obtaining a high degree of hardness and a nice surface with hardly any yellowing. This is particularly suited to use in floor or top coatings.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: March 5, 2019
    Assignee: SIKA TECHNOLOGY AG
    Inventors: Edis Kasemi, Andreas Kramer, Ursula Stadelmann, Urs Burckhardt
  • Publication number: 20190048127
    Abstract: An epoxy resin composition, the curing components of which contain at least one amine of formula (I) and optionally at least one amine A which is, in particular, an adduct of a polyamine and an epoxide. The amine for formula (I) is used in particular in the form of a reaction product of the reductive alkylation of 1,2-ethylenediamine and an aldehyde or ketone. The epoxy resin composition is used in particular as a low-emission, room-temperature-curing epoxy-resin coating. It is characterised by good processibility, quick curing, high hardness, a nice surface and a low tendency to yellowing.
    Type: Application
    Filed: August 30, 2016
    Publication date: February 14, 2019
    Applicant: SIKA TECHNOLOGY AG
    Inventors: Edis KASEMI, Andreas KRAMER, Ursula STADELMANN, Urs BURCKHARDT
  • Publication number: 20190040253
    Abstract: A composition including at least one polymer containing silane groups, at least one epoxy resin, and at least one amine of the formula (I). The composition is low in odor, low in toxicity, and highly workable. It enables low-emission products which cure rapidly at ambient temperature to form macroscopically homogeneous films or bodies having good mechanical properties, high thermal stability and good adhesion properties, the mechanical properties being able to be adjusted from very elastic through to tough elastic. The composition is especially suitable as adhesive and/or sealant or coating.
    Type: Application
    Filed: February 14, 2017
    Publication date: February 7, 2019
    Applicant: SIKA TECHNOLOGY AG
    Inventors: Edis KASEMI, Andreas KRAMER, Ursula STADELMANN, Urs BURCKHARDT, Hans HÄBERLE, Steffen KELCH
  • Publication number: 20190002628
    Abstract: The use of an amine of formula (I) as a component of a hardener for epoxy resins, hardeners for epoxy resins containing the amine of formula (I), and resultant epoxy resin compositions which can particularly be used as low-emission room-temperature-curing epoxy-resin coatings with high hardness and surface quality. The amine of formula (I) is low-odour and a very successful diluent for epoxy resin compositions. It is particularly obtained by reductive alkylation from 1,2-ethylenediamine or 1,2-propylenediamine and an aldehyde or ketone.
    Type: Application
    Filed: September 16, 2016
    Publication date: January 3, 2019
    Applicant: SIKA TECHNOLOGY AG
    Inventors: Edis KASEMI, Andreas KRAMER, Ursula STADELMANN, Urs BURCKHARDT
  • Publication number: 20180215863
    Abstract: An amine of formula (I) in a curing agent for epoxy resins, a curing agent for epoxy resins containing the amine of formula (I) and resultant epoxy resin compositions which can be used particularly as low-emission room-temperature-curing epoxy resin coatings demonstrating good workability, rapid curing, a high degree of hardness and high surface quality. The amine of formula (I) is low-odour, can be handled well at room temperature even without dilution, and can be produced at high purity in a simple process.
    Type: Application
    Filed: August 4, 2016
    Publication date: August 2, 2018
    Applicant: Sika Technology AG
    Inventors: Urs BURCKHARDT, Ursula STADELMANN, Andreas KRAMER, Edis KASEMI
  • Publication number: 20180094175
    Abstract: The invention relates to the use of an epoxy resin composition, containing at least one reaction product from the reaction of at least one amine of formula (I) with at least one carbonyl compound of formula (II) and hydrogen, as a cold curing primer or adhesive. Primers or adhesives of this type cure rapidly and trouble-free at ambient temperature, even at cold temperatures such as 10 or 5° C., suffer remarkably little yellowing and are free from toxic phenol compounds such as phenol, tert-butylphenol or nonylphenol. The primer has a particularly low viscosity and is particularly suitable for priming porous mineral substrates.
    Type: Application
    Filed: March 23, 2016
    Publication date: April 5, 2018
    Applicant: SIKA TECHNOLOGY AG
    Inventors: Edis KASEMI, Andreas KRAMER, Ursula STADELMANN, Urs BURCKHARDT
  • Publication number: 20180079710
    Abstract: An amine of formula (I) which is particularly suitable for use as a curing agent for epoxy resins. The amine of formula (I) is devoid of non-incorporable toxic phenols, and is low-viscosity and pale in colour. It allows the production of easily-workable, low-emission or emission-free epoxy resin products which cure rapidly even at relatively low ambient temperatures thus obtaining a high degree of hardness and a nice surface with hardly any yellowing. This is particularly suited to use in floor or top coatings.
    Type: Application
    Filed: March 23, 2016
    Publication date: March 22, 2018
    Applicant: SIKA TECHNOLOGY AG
    Inventors: Edis KASEMI, Andreas KRAMER, Ursula STADELMANN, Urs BURCKHARDT
  • Patent number: 9850260
    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: Grant
    Filed: July 24, 2014
    Date of Patent: December 26, 2017
    Assignee: SIKA TECHNOLOGY AG
    Inventors: Andreas Kramer, Urs Burckhardt, Ursula Stadelmann
  • 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
  • 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