Patents by Inventor Eckhard Milewski

Eckhard Milewski 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).

  • Low-foaming and low-temperature-stable liquid surfactant compositions composed of water and nonionic, anionic and cationic surfactants and the use thereof
    Patent number: 5298193
    Abstract: The novel surfactant compositions are obtained by mixing 1 part by weight of at least one nonionic surfactant and 0.3 to 9 parts by weight of a specific mixture composed of water and at least one anionic surfactant and at least one cationic surfactant. The said surfactant compositions are concentrated and generally clear liquids which, in particular, have good foaming and wetting characteristics, low surface tension and a low pour point and are versatile by virtue of these particular properties.
    Type: Grant
    Filed: May 28, 1992
    Date of Patent: March 29, 1994
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Wolfgang Klinger, Eckhard Milewski
  • Detergent composition containing an antifoaming agent for cleaning hard surfaces and method of using the same
    Patent number: 4443364
    Abstract: A detergent composition which is particularly suitable for the mechanical cleaning of hard surfaces, in particular glass, porcelain and the like, in a cleaning liquor within the alkaline range, is described. This detergent composition comprises(A) a nonionic surfactant selected from the group comprising polyalkylene glycol monoalkyl ethers containing ethylene oxide and propylene oxide units, polyglycol ether formals containing ethylene oxide units and, if appropriate, propylene oxide units, or polyalkylene glycol dialkyl ethers containing ethylene oxide units and, if appropriate, propylene oxide units,(B) a selected quaternary ammonium compound as a cationic surfactant, and(C) a fluorinated alcohol as an antifoaming agent.These compositions are particularly suitable for industrial crockery-cleaning and bottle-cleaning plants which are operated with considerable mechanical agitation of the liquor within a highly alkaline pH range.
    Type: Grant
    Filed: December 14, 1981
    Date of Patent: April 17, 1984
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Wolfgang Klinger, Eckhard Milewski
  • Detergent composition for cleaning hard surfaces and method of using the same
    Patent number: 4443363
    Abstract: A detergent composition is described which is particularly suitable for the mechanical cleaning of hard surfaces, in particular glass, porcelain and the like, in a cleaning liquor which is within the alkaline range. This detergent composition is composed of(A) a nonionic surfactant selected from the group comprising polyalkylene glycol monoalkyl ethers containing ethylene oxide and propylene oxide units, polyglycol ether formals containing ethylene oxide units and, if appropriate, propylene oxide units, or polyalkylene glycol dialkyl ethers containing ethylene oxide units and, if appropriate, propylene oxide units, and(B) a selected quaternary ammonium compound as a cationic surfactant.These compositions are particularly suitable for industrial crockery and bottle washing plants which are operated within the highly alkaline pH range and with vigorous mechanical agitation of the liquor.
    Type: Grant
    Filed: December 14, 1981
    Date of Patent: April 17, 1984
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Wolfgang Klinger, Eckhard Milewski
  • Activators for inorganic per-compounds
    Patent number: 3957670
    Abstract: Inorganic per-compounds-containing oxidizing, bleaching and washing compositions having a content of acylated oxamides as activators for the inorganic per-compounds. Said activators permit better utilization of the active oxygen while securing good stability to storage.
    Type: Grant
    Filed: December 4, 1974
    Date of Patent: May 18, 1976
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Klaus Uhl, Hermann Schmadel, Gerhart Schneider, Eckhard Milewski