1
Gerhard Albrecht, Hubert Leitner, Rudolf Lindenberger, Richard Siedl, Christian Werenka, Willi Suter: Copolymers based on maleic acid derivatives and vinyl monomers, their production and application. Chemie Linz Gesellschaft m b H, Holderchem Holding, Wenderoth Lind & Ponack, November 29, 1994: US05369198 (51 worldwide citation)

Copolymers which are composed essentially of the structural elements ##STR1## and, if necessary, ##STR2## The copolymers can be employed as dispersing agents for inorganic or organic substances, especially as a plasticiser for hydraulic binders.


2
Gerhard Albrecht, Christian Hübsch, Hubert Leitner, Harald Grassl, Alfred Kern: Copolymers based on unsaturated mono-or dicarboxylic acid derivatives and oxyalkylene glycol alkenyl ethers, method for the production and use thereof. Degussa Construction Chemicals, Fulbright & Jaworski L, August 17, 2004: US06777517 (39 worldwide citation)

Copolymers based on unsaturated monocarboxylic or dicarboxylic acid derivatives, oxyalkylene glycol alkenyl ethers, vinylic polyalkylene glycol, polysiloxane or ester compounds and the use thereof as additives for aqueous suspensions based on mineral or bituminous binders are described. The copolyme ...


3
Gerhard Albrecht, Hubert Leitner, Josef Weichmann, Alfred Kern: Copolymers based on unsaturated dicarboxylic acid derivatives and oxyalkylene glycol alkenyl ethers. SWK Bauchemie, Fulbright & Jaworski, April 3, 2001: US06211317 (39 worldwide citation)

Copolymers based on unsaturated dicarboxylic acid derivatives, oxyalkylene glycol alkenyl ethers, unsaturated dicarboximides and/or -amides and vinyl monomers are described, as also their use as additives for hydraulic binders, especially cement. The copolymers also have an excellent plasticizing ef ...


4
Gerhard Albrecht, Hubert Leitner, Alfred Kern, Josef Weichmann: Powdery polyether carboxylate-based polymeric compositions. Degussa Construction Chemicals, Fulbright & Jaworski L, September 16, 2003: US06620879 (27 worldwide citation)

A description is given of pulverulent polymer compositions based on polyether carboxylates, which are characterized in that they comprise


5
Luc Nicoleau, Gerhard Albrecht, Klaus Lorenz, Eva Jetzlsperger, Daniel Fridrich, Thomas Wohlhaupter, Reinhard Dorfner, Hubert Leitner, Mario Vierle, Dirk Schmitt, Michael Braeu, Christoph Hesse, Sabrina Montero Pancera, Siegfried Zuern, Michael Kutschera: Plasticizer-containing hardening accelerator composition. Construction Research & Technology, Curatolo Sidoti Co LPA, Joseph G Curatolo, Salvatore A Sidoti, February 18, 2014: US08653186 (8 worldwide citation)

The invention concerns a process for the preparation of a hardening accelerator composition by reaction of a water-soluble calcium compound with a water-soluble silicate compound and a process for the preparation of a hardening accelerator composition by reaction of a calcium compound with a silicon ...


6
Luc Nicoleau, Gerhard Albrecht, Klaus Lorenz, Eva Jetzlsperger, Daniel Fridrich, Thomas Wohlhaupter, Reinhard Dorfner, Hubert Leitner, Mario Vierle, Dirk Schmitt, Michael Braeu, Christoph Hesse, Sabrina Montero Pancera, Siegfried Zuern, Michael Kutschera: Hardening accelerator composition containing phosphated polycondensates. Construction Research & Technology, Curatolo Sidoti Co LPA, Joseph G Curatolo, Salvatore A Sidoti, June 2, 2015: US09045377 (4 worldwide citation)

The invention concerns a process for the preparation of a hardening accelerator composition by reaction of a water-soluble calcium compound with a water-soluble silicate compound and by reaction of a calcium compound with a silicon dioxide containing component under alkaline conditions, in both case ...


7
Luc Nicoleau, Hubert Leitner: Hardening accelerator composition for cementitious compositions. Construction Research & Technology, Curatolo Sidoti Co LPA, Joseph G Curatolo, Salvatore A Sidoti, May 16, 2017: US09650298

The invention concerns a process for the for the preparation of a hardening accelerator composition by reaction of a water-soluble calcium compound with a water-soluble silicate compound, the reaction being carried out in the presence of an aqueous solution which contains a plasticizer suitable for ...


8
Gerhard Albrecht, Hubert Leitner, Timo Mangel, Ellen Reuter, Angela Ruttgerodt, Stefan Silber: Dispersants for preparing aqueous pigment pastes. Frommer Lawrence & Haug, February 14, 2002: US20020019459-A1

The invention relates to the use of copolymers containing vinyl-functionalized polyethers for preparing aqueous pigment preparations.


9
Luc Nicoleau, Gerhard Albrecht, Klaus Lorenz, Eva Jetzlsperger, Daniel Fridrich, Thomas Wohlhaupter, Reinhard Dorfner, Hubert Leitner, Mario Vierle, Dirk Schmitt, Michael Braeu, Christoph Hesse, Sabrina Montero Pancera, Siegfried Zuern, Michael Kutschera: Plasticizer-Containing Hardening Accelerator Composition. November 3, 2011: US20110269875-A1

The invention concerns a process for the preparation of a hardening accelerator composition by reaction of a water-soluble calcium compound with a water-soluble silicate compound and a process for the preparation of a hardening accelerator composition by reaction of a calcium compound with a silicon ...


10
Luc Nicoleau, Gerhard Albrecht, Klaus Lorenz, Eva Jetzlsperger, Daniel Fridrich, Thomas Wohlhaupter, Reinhard Dorfner, Hubert Leitner, Mario Vierle, Dirk Schmitt, Michael Braeu, Christoph Hesse, Sabrina Montero Pancera, Siegfried Zuern, Michael Kutschera: Hardening Accelerator Composition Containing Phosphated Polycondensates. August 30, 2012: US20120220696-A1

The invention concerns a process for the preparation of a hardening accelerator composition by reaction of a water-soluble calcium compound with a water-soluble silicate compound and by reaction of a calcium compound with a silicon dioxide containing component under alkaline conditions, in both case ...