Patents by Inventor Alois Maier

Alois Maier 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).

  • Publication number: 20190247771
    Abstract: A liquid cleaning element has a cleaning medium and a carrier medium connected to each other. The carrier medium is provided with a liquid connector to connect to a line for liquid to be cleaned or cleaned liquid. The liquid cleaning element has a bend in a section provided with the cleaning medium and the carrier medium. The carrier medium, prior to connection to the cleaning medium, is pre-manufactured in a final shape of the liquid cleaning element. The liquid connector has a cylindrical suction socket and is arranged at or integrated in the carrier medium. A liquid cleaning system is provided with the liquid cleaning element and a holder holding the liquid cleaning element. In a method for producing the liquid cleaning element, the carrier medium is pre-manufactured in a final shape of the liquid cleaning element and the cleaning medium is connected to the pre-manufactured carrier medium.
    Type: Application
    Filed: April 23, 2019
    Publication date: August 15, 2019
    Inventors: Pascal Egger, Heiko Wyhler, Alois Maier, Norbert Strassenberger
  • Publication number: 20100324205
    Abstract: Novel fluorine-containing compositions which have improved surface properties for the permanent oil- and water-repellent surface treatment or modification of mineral and nonmineral substrates for various fields of application and are present in single-component form are claimed. These compositions have, at a reduced fluorine content, significantly improved use properties and they can, in combination with suitable stabilizing components and hydrophilic silane components, be additionally optimized in terms of their hydrophobic, oleophobic and dirt-repellent properties, and they have excellent storage stability.
    Type: Application
    Filed: January 19, 2009
    Publication date: December 23, 2010
    Inventors: Alois Maier, Norbert Steidl, Michael Schroers, Frank Weinelt, Viktoria Kraus
  • Publication number: 20100285311
    Abstract: A dual component (aqueous) hybrid reactive system obtained by a) the production of an epoxy-functional (aqueous) binding agent component (I) with an epoxide equivalent of 100 to 12,500 g/eq, and average molecular mass of 200 to 25,000 Daltons and a viscosity of 1,000 to 15,000 mPas 920° C., Brookfield) and b) the production of a (latent) amino-functional hardener component (II).
    Type: Application
    Filed: April 3, 2007
    Publication date: November 11, 2010
    Inventors: Norbert Steidl, Alois Maier, Michael Schroers, Roswitha Waldherr
  • Patent number: 7825210
    Abstract: An aqueous highly cross-linked two-component polyurethane coating system is described with reduced hydrophilicity and improved resistance to chemicals which can be obtained by a) producing a binder component based on an aqueous solution or dispersion of low-molecular hydroxyfunctional and/or aminofunctional oligourethanes or polyurethanes and b) by subsequently reacting the binder component a) with a cross-linking component (H) in a ratio of 3:1 to 5:1, wherein water-dispersible polyisocyanates are used as the cross-linking component (H).
    Type: Grant
    Filed: April 23, 2004
    Date of Patent: November 2, 2010
    Assignee: Construction Research & Technology GmbH
    Inventors: Norbert Steidl, Alois Maier, Franz Wolfertstetter
  • Patent number: 7745565
    Abstract: A description is given of azetidine derivatives and methods for producing them, and of their use as a latent curing component for resins having functional groups which are reactive toward amino groups. The particular advantages of the curing component proposed in accordance with the invention, such as effective producibility, high environmental friendliness, and excellent storage stability of the resin/curing agent mixtures, make these azetidine derivatives outstandingly suitable for one-component, moisture-hardening polymer compositions, which are of special interest in particular for the production of (floor) coatings, sealants, and adhesives.
    Type: Grant
    Filed: December 2, 2004
    Date of Patent: June 29, 2010
    Assignee: Construction Research & Technology GmbH
    Inventors: Stefan Ingrisch, Alois Maier, Thomas Pfeuffer, Norbert Steidl, Herbert Winkelmann, Andrea Gantner, legal representative
  • Publication number: 20090240004
    Abstract: Disclosed is a functionalized polyurethane resin containing a binder component, a hardener component and, optionally, a formulation component. The binder component consists essentially of urethane dispersions with defined structural components which, in turn, consist of special reaction products. Such polyurethane resins are used for the production of fluorine-modified polyurethane coatings and generally in construction or industrial applications for the permanent oil-, water- and dirt-resistant coating of mineral and non-mineral surfaces on the basis of, for example, hydraulically setting components.
    Type: Application
    Filed: September 4, 2007
    Publication date: September 24, 2009
    Inventors: Alois Maier, Norbert Steidl, Christian Huber, Helmut Mack, Johann Huber, Thomas Schuhbeck, Franz Wolfertetter
  • Publication number: 20090198000
    Abstract: Fluorine-containing and two-component compositions exhibit improved surface properties for the permanent oil- and water-repellent surface treatment or modification of mineral and non-mineral substrates for various fields of application. At a simultaneously reduced fluorine content, these compositions have considerably improved application properties and, in combination with suitable stabilizing components and hydrophilic silane components, they exhibit excellent hydrophobic, oleophobic and soil-repellent properties, having overall excellent storage stability.
    Type: Application
    Filed: January 30, 2009
    Publication date: August 6, 2009
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Frank Weinelt, Alois Maier, Norbert Steidl, Michael Schroers
  • Patent number: 7501472
    Abstract: An aqueous fluoromodified polyurethane system for one- or two-component anti-graffiti and anti-soiling coatings is prepared by (a) preparing a binder component based on an aqueous solution or dispersion of optionally hydroxy- and/or amino-functional oligourethanes and/or polyurethanes having fluorinated side chains, and, optionally, (b) subsequently reacting the binder component with a crosslinker.
    Type: Grant
    Filed: February 26, 2003
    Date of Patent: March 10, 2009
    Assignee: Construction Research & Technology GmbH
    Inventors: Norbert Steidl, Alois Maier, Franz Wolfertstetter, Wolfgang Hiller, Rupert Stadler
  • Publication number: 20090054588
    Abstract: A fluoromodified admixture containing isocyanate and urethane and/or urea groups is described. Surprisingly, it has been found that the fluoromodified admixture according to the invention is outstandingly suitable even at a very low dosage for the permanent hydrophobic and/or oleophobic and/or dirt-repellent in-bulk finishing of products based on inorganic or hydraulic or mineral binders, without the fundamental property profile (e.g. compressive and flexural tensile strengths) of these products being substantially influenced. Moreover, it was not to be foreseen that in the case of the products treated with the fluoromodified admixtures according to the invention (e.g. hardened building material compositions) a markedly lower water absorption (avoidance of frost damage and corrosion) and a suppression of bleeding on the surfaces (avoidance of visual impairment) are to be observed. Furthermore, it could not be expected that in spite of the high fluorine modification an adequate self-dispersibility is afforded.
    Type: Application
    Filed: March 9, 2007
    Publication date: February 26, 2009
    Inventors: Alois Maier, Norbert Steidl, Johann Huber, Christian Huber, Marita Staudhammer
  • Patent number: 7414092
    Abstract: Stabilized polyurethane resins and methods for their preparation are disclosed.
    Type: Grant
    Filed: April 1, 2004
    Date of Patent: August 19, 2008
    Assignee: Construction Research & Technology GmbH
    Inventors: Norbert Steidl, Alois Maier, Franz Wolfertstetter, Christian Huber, Sascha Raspl
  • Publication number: 20080045690
    Abstract: A description is given of azetidine derivatives and methods for producing them, and of their use as a latent curing component for resins having functional groups which are reactive toward amino groups. The particular advantages of the curing component proposed in accordance with the invention, such as effective producibility, high environmental friendliness, and excellent storage stability of the resin/curing agent mixtures, make these azetidine derivatives outstandingly suitable for one-component, moisture-hardening polymer compositions, which are of special interest in particular for the production of (floor) coatings, sealants, and adhesives.
    Type: Application
    Filed: December 2, 2004
    Publication date: February 21, 2008
    Inventors: Stefan Ingrisch, Alois Maier, Thomas Pfeuffer, Norbert Steidl, Andrea Gantner, Herbert Winkelmann
  • Patent number: 7265178
    Abstract: A description is given of an optionally fluorinated polyurethane-polymer hybrid dispersion with enhanced surface properties (low critical surface tensions ?c and very high contact angles ?) which is obtainable by a) preparing a dispersion component (binder) based on an aqueous solution or dispersion of an optionally hydroxy- and/or amino-functional polyurethane-polymer hybrid having optionally fluorinated side chains and, if desired, b) subsequently reacting the dispersion component from stage a) with a crosslinker component (D). The polyurethane-polymer hybrid dispersion of the invention can be prepared in solvent-free or low-solvent fashion and with high solids content and requires only a very low level of stabilizing groups.
    Type: Grant
    Filed: July 9, 2004
    Date of Patent: September 4, 2007
    Assignee: Construction Research & Technology GmbH
    Inventors: Alois Maier, Stefan Ingrisch, Norbert Steidl, Frank Weinelt
  • Patent number: 7255897
    Abstract: The invention relates to the use of aqueous, isocyanate-free, polyurethane dispersions with a solid content of ?30 wt. % and a solvent content of ?10 wt. % in sports floor coverings. The inventive polyurethane dispersions are particularly suitable for use as bonding agents for elastic coatings, spray coatings or flow coatings on elastic or rigid undersurfaces, adhesion promoters or primary coatings, fillers for sealing pores, adhesives for gluing pre-fabricated plastic coatings or for sealing sports floor coverings. The inventive polyurethane dispersions are environmentally friendly and easy to manufacture. They are also partly characterized by improved product features, e.g. mechanical properties, UV resistance and color stability, with respect to the corresponding sports floor coverings.
    Type: Grant
    Filed: January 25, 2001
    Date of Patent: August 14, 2007
    Assignee: Construction Research & Technology GmbH
    Inventors: Werner Temme, Ralph Bergs, Hans Haberle, Alois Maier
  • Publication number: 20060205869
    Abstract: A description is given of electrosterically stabilized polyurethane resins having an improved profile of properties, obtainable by a) preparing a hydrophilic and solvent-free macromonomer (A)(ii) with monomodal molecular mass distribution, by a1)reacting 50 to 100 parts by weight of a hydrophilic alkyl- or arylpolyalkylene glycol (A)(i) with 1 to 100 parts by weight of a polyisocyanate component (B)(i) optionally in the presence of a catalyst in the absence of solvents, and subsequently a2) reacting the uniform preadduct from stage a1) completely with 0.
    Type: Application
    Filed: April 1, 2004
    Publication date: September 14, 2006
    Inventors: Norbert Steidl, Alois Maier, Franz Wolferstetter, Christian Huber, Sascha Raspl
  • Publication number: 20060194931
    Abstract: The invention relates to the use of diazepine derivates of general formula (I) and/or (II), wherein R1, R2, R3 and R5 independently represent H, C1-C20-alkyl, C3-C8-cycloakyl, C6-C10-aryl or alkylaryl comprising C1-C4-alkyl and C6-C10-aryl groups, R4?H, C1-C6-alkyl(iden), as latent hardening components for resinous substances comprising functional groups which can react with amines. Based on the particular advantages of the inventive hardening components, such as good producibility, environmentally friendly and having an excellent shelf life of the resin/hardening mixture, said diazepine derivatives are outstanding for single-componented, moisture-hardening polymer masses, which are particularly useful in the production of sealing materials, adhesives and coating materials.
    Type: Application
    Filed: May 5, 2004
    Publication date: August 31, 2006
    Applicant: CONSTRUCTION RESEARCH & TECHNOLOGY GMBH
    Inventors: Stefan Ingrisch, Alois Maier, Thomas Pfeuffer, Norbert Steidl, Herbert Winkelmann, Fleix Gantner, Andrea Gantner
  • Publication number: 20060189750
    Abstract: A description is given of an optionally fluorinated polyurethane-polymer hybrid dispersion with enhanced surface properties (low critical surface tensions ?c and very high contact angles ?) which is obtainable by a) preparing a dispersion component (binder) based on an aqueous solution or dispersion of an optionally hydroxy- and/or amino-functional polyurethane-polymer hybrid having optionally fluorinated side chains and, if desired, b) subsequently reacting the dispersion component from stage a) with a crosslinker component (D). The polyurethane-polymer hybrid dispersion of the invention can be prepared in solvent-free or low-solvent fashion and with high solids content and requires only a very low level of stabilizing groups.
    Type: Application
    Filed: July 9, 2004
    Publication date: August 24, 2006
    Inventors: Alois Maier, Stefan Ingrisch, Norbert Steidl, Frank Weinelt
  • Publication number: 20060183848
    Abstract: The invention relates to a self-crosslinking, high-molecular polyurethane dispersion based on oxidatively drying diols and/or triols, and consisting of the reaction constituents (A) of an unsaturated fatty acid constituent for oxidative drying, (B) a polyol constituent, (C) a polyisocyanate constituent, (D) a solvent constituent, (E) a neutralisation constituent, (F) a siccative constituent, (G) a chain lengthening constituent, and water. The advantages of said polyurethane dispersion are the technically simple production thereof, whereby the properties of the polyurethane dispersion and the polyurethane films can be tailor-made by means of the polyol constituents, in addition to the excellent drying capacity thereof, and the other good application technology properties thereof such as hardness and chemical resistance during the use of the binding agent for high-grade lacquers and coatings.
    Type: Application
    Filed: July 29, 2004
    Publication date: August 17, 2006
    Inventors: Alois Maier, Franz Wolfertstetter, Herbert Winkelmann, Josef Weichmann, Alfred Kern
  • Publication number: 20060167206
    Abstract: A description is given of a fluorine-modified one- or two-component polyurethane resin having improved surface properties, which is obtainable by a) preparing a fluorine-modified polyurethane prepolymer having free isocyanate groups or free amino and/or hydroxyl groups, or a fluorine-modified polyol mixture having free hydroxyl groups (binder), and by b) preparing a fluorine-modified polyurethane resin having a polymer-bonded fluorine content of 1% to 4% by weight in the system as a whole by reacting the fluorine-modified polyurethane prepolymer from stage a3) in the case of a one-component application with atmospheric moisture, or reacting the fluorine-modified polyurethane prepolymer or polyol mixture (binder) in the case of a two-component application with a crosslinker component (D) (curing agent), with a formulating component (F)(ii) in the presence if desired of a solvent component (L)(iii) and also of a catalyst.
    Type: Application
    Filed: July 6, 2004
    Publication date: July 27, 2006
    Inventors: Alois Maier, Norbert Steidl, Stefan Ingrisch, Frank Weinelt
  • Patent number: 6855764
    Abstract: A method for producing self-emulsifiable, aqueous polyurethane resins by a) preparing a premix of polyol component including a least one diol having a molar mass of 500 to 5,000 Dalton, at least one polyhydroxyalkane at least one anionically modifiable dihydroxyalkane-carboxylic acid and 0 to 9 parts by weight of a solvent component in desired ratios; b) reacting a polyisocyanate component the premix from stage a) to give a polyurethane preadduct, c) reacting the polyurethane preadduct from stage b) with either the premix from stage a) or with an anionically modifiable dihydroxyalkanecarboxylic acid to give a polyurethane prepolymer; d) mixing the polyurethane prepolymer from stage c) with a prepared mixture of water, a neutralizing component and an antifoam component; and thereafter or simultaneously reacting the aqueous polyurethane prepolymer from stage d) with a chain-extending component which is diluted with water.
    Type: Grant
    Filed: December 7, 2000
    Date of Patent: February 15, 2005
    Assignee: SKW Bauchemie GmbH
    Inventors: Alois Maier, Stefan Ingrisch, Alfred Kern
  • Publication number: 20050027092
    Abstract: An aqueous highly cross-linked two-component polyurethane coating system is described with reduced hydrophilicity and improved resistance to chemicals which can be obtained by a) producing a binder component based on an aqueous solution or dispersion of low-molecular hydroxyfunctional and/or aminofunctional oligourethanes or polyurethanes and b) by subsequently reacting the binder component a) with a cross-linking component (H) in a ratio of 3:1 to 5:1, wherein water-dispersible polyisocyanates are used as the cross-linking component (H).
    Type: Application
    Filed: April 23, 2004
    Publication date: February 3, 2005
    Inventors: Norbert Steidl, Alois Maier, Franz Wolfertstetter