Patents by Inventor Martina Brandl

Martina Brandl 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).

  • Copolymers based on phosphorous-containing monomers, methods for the production thereof and their use
    Patent number: 7902310
    Abstract: The invention relates to copolymers based on phosphorous-containing monomers (A) and on macromonomers (B), to methods for the production thereof and to their use as additives for inorganic binding agent suspensions based on cement, lime, gypsum and anhydrite. The corresponding polymeric additives have, as flow agents, excellent water-reducing properties and hold the flowability of the concrete over a relatively long period of time (60 to 90 min.) to an almost unchanged level without having delayed action. In addition, the corresponding polymeric additives improve the processing and setting processes of the building materials produced with these additives by making possible earlier and higher resistances to pressure.
    Type: Grant
    Filed: May 17, 2006
    Date of Patent: March 8, 2011
    Assignee: Construction Research & Technology GmbH
    Inventors: Lars Einfeldt, Alexander Kraus, Gerhard Albrecht, Martina Brandl, Angelika Hartl
  • Phosphorus-containing copolymers, method for the production thereof, and use thereof
    Patent number: 7842766
    Abstract: Copolymers which are obtained by free radical copolymerization of a vinylic poly(alkylene oxide) compound (A) with an ethylenically unsaturated monomer compound (B), and the use thereof as dispersants for aqueous solid suspensions, in particular hydraulic binders based on cement, lime, gypsum and anhydrite, are described. With very good water reduction power, the copolymers according to the invention scarcely retard the hardening of the concrete and ensure long processability of the concrete.
    Type: Grant
    Filed: February 24, 2006
    Date of Patent: November 30, 2010
    Assignee: Construction Research & Technology GmbH
    Inventors: Alexander Kraus, Harald Grassl, Angelika Hartl, Martina Brandl
  • Phosphorus-Containing Copolymers, Method for the Production Thereof, and Use Thereof
    Publication number: 20080146700
    Abstract: Copolymers which are obtained by free radical copolymerization of a vinylic poly(alkylene oxide) compound (A) with an ethylenically unsaturated monomer compound (B), and the use thereof as dispersants for aqueous solid suspensions, in particular hydraulic binders based on cement, lime, gypsum and anhydrite, are described. With very good water reduction power, the copolymers according to the invention scarcely retard the hardening of the concrete and ensure long processability of the concrete.
    Type: Application
    Filed: February 24, 2006
    Publication date: June 19, 2008
    Inventors: Alexander Kraus, Harald Grassl, Angelika Hartl, Martina Brandl
  • Copolymers Base on Phosphorous-Containing Monomers, Methods for the Production Thereof and Their Use
    Publication number: 20080125520
    Abstract: The invention relates to copolymers based on phosphorous-containing monomers (A) and on macromonomers (B), to methods for the production thereof and to their use as additives for inorganic binding agent suspensions based on cement, lime, gypsum and anhydrite. The corresponding polymeric additives have, as flow agents, excellent water-reducing properties and hold the flowability of the concrete over a relatively long period of time (60 to 90 min.) to an almost unchanged level without having delayed action. In addition, the corresponding polymeric additives improve the processing and setting processes of the building materials produced with these additives by making possible earlier and higher resistances to pressure.
    Type: Application
    Filed: May 17, 2006
    Publication date: May 29, 2008
    Applicant: CONSTRUCTION RESEARCH & TECHNOLOGY GMBH
    Inventors: Lars Einfeldt, Alexander Kraus, Gerhard Albrecht, Martina Brandl, Angelika Hartl