Patents by Inventor Reinhard Kniewske

Reinhard Kniewske 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).

  • Carboxymethylcellulose and its use in textile printing
    Patent number: 5463036
    Abstract: The present invention relates to carboxymethylcellulose (CMC) having a lower degree of substitution and to its use in textile printing.
    Type: Grant
    Filed: November 18, 1993
    Date of Patent: October 31, 1995
    Assignee: Wolff Walsrode Aktiengesellschaft
    Inventors: Reinhard Kniewske, Rene Kiesewetter, Eugen Reinhardt, Klaus Szablikowski
  • Highly substituted carboxymethyl sulfoethyl cellulose ethers (CMSEC), a process for their production and their use in textile printing
    Patent number: 5455341
    Abstract: The invention relates to certain highly substituted carboxymethyl sulfoethyl cellulose ethers (CMSEC), to a simplified and economic process for their production and to their use as thickeners in textile printing.
    Type: Grant
    Filed: December 1, 1993
    Date of Patent: October 3, 1995
    Assignee: Wolff Walsrode Aktiengesellschaft
    Inventors: Rene Kiesewetter, Reinhard Kniewske, Eugen Reinhardt, Klaus Szablikowski
  • Highly substituted sulphoalkycellulose derivatives, especially sulphoethycellulose ether, a process for their preparation and their use as thickening agent for textile printing pastes
    Patent number: 5442054
    Abstract: The present invention relates to sulphoalkylcellulose derivatives, in particular sulphoethylcellulose, with a degree of substitution by sulphoethyl groups of 1.2 to 2.0 using a one- to three-step, preferably two-step process and the use of the sulphoalkyl-cellulose derivatives as thickening agents or rheology improvers in textile printing.
    Type: Grant
    Filed: December 14, 1993
    Date of Patent: August 15, 1995
    Assignee: Wolff Walsrode Aktiengesellschaft
    Inventors: Rene Kiesewetter, Reinhard Kniewske, Eugen Reinhardt, Klaus Szablikowski
  • Use of anionic alkyl cellulose mixed ethers in textile printing
    Patent number: 5385585
    Abstract: The present invention relates to the use of anionic alkyl cellulose mixed ethers, preferably alkyl carboxy-methyl cellulose mixed ethers and, more preferably methyl carboxymethyl cellulose mixed ethers (MCMC), as auxiliaries in the textile industry and preferably as thickeners for textile printing pastes.
    Type: Grant
    Filed: January 27, 1993
    Date of Patent: January 31, 1995
    Assignee: Wolff Walsrode AG
    Inventors: Rene Kiesewetter, Eugen Reinhardt, Reinhard Kniewske, Klaus Szablikowski
  • Water-soluble sulfoethyl cellulose ethers of very high solution quality and a process for their production
    Patent number: 5278304
    Abstract: The invention relates to water-soluble sulfoethyl cellulose ethers, more particularly methyl sulfoethyl cellulose ether (MSEC), of very high solution quality, to a process for its production and to the use of these products as thickeners, dispersants or binders.
    Type: Grant
    Filed: April 20, 1992
    Date of Patent: January 11, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Reinhard Kniewske, Rene Kiesewetter, Klaus Szablikowski
  • Cellulose ether compositions for aqueous media
    Patent number: 5258429
    Abstract: Cellulose ether compositions based on rapidly dissolving, pulverulent, water soluble cellulose ethers contain swellable and suction active superabsorbents to prevent the formation of lumps when dissolved. The cellulose ether composition can be converted into compression moulded pieces which retain the rapid solubility and dissolve without forming lumps.
    Type: Grant
    Filed: May 20, 1992
    Date of Patent: November 2, 1993
    Assignee: Wolff Walsrode AG
    Inventors: Reinhard Kniewske, Eugen Reinhardt
  • Polymer compositions
    Patent number: 5004767
    Abstract: The present invention relates to an aqueous acrylate polymer dispersion having a total solids content of 30 to 60% by weight polymerizing one or more acrylate monomers optionally together with other olefinically unsaturated monomer(s) in the presence of dextrin at least 70% of which has a molecular weight in the range of 1000 to 25000 and not more than 10% has a molecular weight above 25000.
    Type: Grant
    Filed: March 17, 1989
    Date of Patent: April 2, 1991
    Assignee: Cerestar Holding B.V.
    Inventors: Frank Krause, Reinhard Kniewske