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).

  • 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
  • Epoxy group-terminated polymers, the compositions thereof and the use thereof as impact resistance modifiers
    Patent number: 9012575
    Abstract: The present invention relates to epoxy group-terminated polymers of the formula (I). Said epoxy group-terminated polymers are suited extremely well as impact resistance modifiers, particularly in epoxy resin compositions. They are particularly suited for use in heat-curing epoxy resin adhesives. It has been found that such epoxy resin compositions not only have excellent mechanical properties and high glass transition temperatures, but also above all improved impact resistance properties, both at room temperature and at low temperatures.
    Type: Grant
    Filed: March 20, 2008
    Date of Patent: April 21, 2015
    Assignee: Sika Technology AG
    Inventors: Jürgen Finter, Andreas Kramer
  • HARDENERS FOR EPOXY RESINS, WHICH COMPRISE PYRIDINYL GROUPS
    Publication number: 20140316080
    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: Application
    Filed: November 8, 2012
    Publication date: October 23, 2014
    Inventors: Andreas Kramer, Edis Kasemi
  • CURING AGENT FOR EPOXY RESIN COATINGS
    Publication number: 20140309334
    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: Application
    Filed: November 8, 2012
    Publication date: October 16, 2014
    Inventors: Andreas Kramer, Urs Burckhardt, Ursula Stadelmann, Edis Kasemi
  • Activator for epoxy resin compositions
    Patent number: 8859695
    Abstract: A hem-curing epoxy resin composition, that includes an epoxy resin A having more than one epoxy group per molecule on average; a curing agent B for epoxy resins, which is activated at a temperature in a range of 100° C. to 220° C.; and an activator C for epoxy resin compositions, wherein activator C is a compound of formula (I), or is a reaction product between a compound of formula (Ia) and an isocyanate or an epoxide.
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: October 14, 2014
    Assignee: Sika Technology AG
    Inventors: Karsten Frick, Ulrich Gerber, Juergen Finter, Andreas Kramer
  • HARDENERS FOR EPOXY RESINS, WHICH COMPRISE AROMATIC AMINO GROUPS
    Publication number: 20140275446
    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: Application
    Filed: November 8, 2012
    Publication date: September 18, 2014
    Applicant: Sika Technology AG
    Inventors: Andreas Kramer, Edis Kasem
  • Polyurethane polymer based on an amphiphilic block copolymer and its use as impact modifier
    Patent number: 8829122
    Abstract: Novel impact strength modifiers which are obtained by reaction of amphiphilic block copolymers. These impact strength modifiers are suitable in particular for use in heat-curing epoxy resin adhesives. In particular, combinations of different impact strength modifiers are also suitable for use in heat-curing epoxy resin adhesives. Also disclosed are methods of bonding heat-stable substrates.
    Type: Grant
    Filed: April 16, 2009
    Date of Patent: September 9, 2014
    Assignee: Sika Technology AG
    Inventors: Andreas Kramer, Jurgen Finter, Karsten Frick, Jan Olaf Schulenburg
  • SILANE/UREA COMPOUND AS A HEAT-ACTIVATED CURING AGENT FOR EPOXIDE RESIN COMPOSITIONS
    Publication number: 20140216655
    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: Application
    Filed: April 7, 2014
    Publication date: August 7, 2014
    Applicant: SIKA TECHNOLOGY AG
    Inventor: Andreas KRAMER
  • PREPARING CHLORIDE-FREE POLYETHYLENEIMINES
    Publication number: 20140163199
    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: Application
    Filed: December 9, 2013
    Publication date: June 12, 2014
    Applicant: BASF SE
    Inventors: Stephan HUEFFER, Andreas KRAMER, Frank DIETSCHE
  • Silane/urea compound as a heat-activatable curing agent for epoxide resin compositions
    Patent number: 8728271
    Abstract: Silanes of formula (I), or of substrates whose surface is coated or derivatized with a silane of formula (I), as a curing agent for epoxy resins which is activatable at elevated temperature. Such thermosetting epoxy resin compositions allow a large reduction in the curing temperature without great impairment of their storage stability.
    Type: Grant
    Filed: August 27, 2009
    Date of Patent: May 20, 2014
    Assignee: Sika Technology AG
    Inventor: Andreas Kramer
  • HARDENER FOR EPOXY RESINS
    Publication number: 20140128506
    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: Application
    Filed: July 9, 2012
    Publication date: May 8, 2014
    Applicant: SIKA TECHNOLOGY AG
    Inventors: Andreas Kramer, Edis Kasemi
  • LOW-EMISSION HARDENER FOR EPOXY RESINS
    Publication number: 20140107313
    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: Application
    Filed: July 9, 2012
    Publication date: April 17, 2014
    Applicant: SIKA TECHNOLOGY AG
    Inventors: Urs Burckhardt, Andreas Kramer, Ursula Stadelmann, Edis Kasemi
  • Pharmaceutical compositions comprising colloidal silicon dioxide
    Patent number: 8617598
    Abstract: A pharmaceutical composition comprising a macrolide solid dispersion, a disintegrant and colloidal silicon dioxide, wherein the composition comprises 1 to 5% colloidal silicon dioxide by weight.
    Type: Grant
    Filed: June 5, 2012
    Date of Patent: December 31, 2013
    Assignee: Novartis AG
    Inventors: Barbara Haeberlin, Andrea Kramer, Silvia Heuerding
  • Heat-curing epoxy resin composition comprising an accelerator having heteroatoms
    Patent number: 8608899
    Abstract: A heat-curing epoxy resin composition that includes an epoxy resin, a curing agent, an accelerator, and an optional toughener. The epoxy resin compositions are suitable in particular for use as bodyshell adhesives and for preparation of structural foams. An accelerator of formula (I) results in increased impact strength the of heat-curing epoxy resin compositions.
    Type: Grant
    Filed: May 28, 2009
    Date of Patent: December 17, 2013
    Assignee: Sika Technology AG
    Inventors: Andreas Kramer, Karsten Frick
  • Process for the preparation of N-vinylcarboxamides
    Patent number: 8598385
    Abstract: Process for the preparation of N-vinylcarboxamides by pyrolysis of a compound of the formula CH3—CH(CN)—N(R)—CO—R1??(I), in which R and R1 are H or C1- to C6-alkyl, in the presence of solids which are doped with alkali metal or alkaline earth metal ions, under reduced pressure at a temperature of from 330 to 750° C. with elimination of hydrogen cyanide, cooling, separation and isolation of the reaction products, a solid arranged in a tubular reactor being treated at a temperature in the range from 0 to 250° C. with a solution of an alkali metal and/or alkaline earth metal base, the solution being discharged, the remaining solvent which adheres to the catalyst thus obtainable being evaporated and said catalyst then being heated to a temperature of at least 380° C. for activation.
    Type: Grant
    Filed: December 4, 2009
    Date of Patent: December 3, 2013
    Assignee: BASF SE
    Inventors: Manfred Winter, Hagen Weigl, Andreas Kramer
  • Process for hydrolyzing polymers containing vinylcarboxamide units
    Patent number: 8575267
    Abstract: A process for the hydrolysis of polymers comprising vinylcarboxamide units by heating polymers comprising vinylcarboxamide units in an aqueous medium in the presence of acids or bases, wherein an aqueous solution or dispersion of a polymer comprising vinylcarboxamide units and an aqueous solution or a base or acid are fed continuously to a tubular reactor at elevated pressure, from 0.05 to less than one equivalent of a base or acid being used per vinylcarboxamide equivalent and the mixture being passed through the tubular reactor at a temperature of >100° C. to 250° C., depressurized and cooled.
    Type: Grant
    Filed: November 2, 2009
    Date of Patent: November 5, 2013
    Assignee: BASF SE
    Inventors: Manfred Winter, Hagen Weigl, Hans-Joachim Haehnle, Andreas Kramer
  • HEAT-CURING SEALANT COMPOSITIONS HAVING FAST SKIN FORMATION AND HIGH TENSILE STRENGTH
    Publication number: 20130280536
    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: Application
    Filed: December 19, 2011
    Publication date: October 24, 2013
    Applicant: SIKA TECHNOLOGY AG
    Inventors: Antonio Voci, Andreas Kramer, Jan Olaf Schulenburg, Michael Gutgsell, Urs Burckhardt
  • HEAT-CURING SEALING COMPOUND COMPOSITIONS HAVING FAST SKIN FORMATION AND GOOD STORAGE STABILITY
    Publication number: 20130280526
    Abstract: The invention relates to heat-curing sealing compound compositions comprising at least epoxy resin, a heat-activatable hardening agent or accelerators (B) for epoxy resins, isocyanate group-containing polyurethane polymer (PUP) and a special polyaldimine. Said single-component sealing compound compositions are characterized by a good skin formation time and extraordinarily good storage stability and low blistering. Due to these properties, said sealing compound compositions are optimally suitable for use as sealants in autobody work because they can be excellently coated with a KTL paint.
    Type: Application
    Filed: December 19, 2011
    Publication date: October 24, 2013
    Applicant: SIKA TECHNOLOGY AG
    Inventors: Antonio Voci, Andreas Kramer, Jan Olaf Schulenburg, Michael Gutgsell, Urs Burckhardt
  • ACTIVATOR FOR EPOXY RESIN COMPOSITIONS
    Publication number: 20130253094
    Abstract: A hem-curing epoxy resin composition, that includes an epoxy resin A having more than one epoxy group per molecule on average; a curing agent B for epoxy resins, which is activated at a temperature in a range of 100° C. to 220° C.; and an activator C for epoxy resin compositions, wherein activator C is a compound of formula (I), or is a reaction product between a compound of formula (Ia) and an isocyanate or an epoxide.
    Type: Application
    Filed: May 29, 2013
    Publication date: September 26, 2013
    Applicant: SIKA TECHNOLOGY AG
    Inventors: Karsten FRICK, Ulrich GERBER, Juergen FINTER, Andreas KRAMER