Patents by Inventor Uwe Kind

Uwe Kind 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).

  • Patent number: 7326376
    Abstract: A method of regulating the composition of the cellulose-containing extrusion solution in the production of cellulosic molded articles, whereby (a) cellulose is mixed with an aqueous amine oxide solution; (b) the mixture is converted to the extrusion solution by evaporation of water in vacuo at an elevated temperature and by input of shearing energy; (c) the extrusion solution is extruded, forming the cellulosic molded article, and is coagulated in a coagulation bath, and (d) the resulting molded article is washed to remove the residual amine oxide, characterized in that in step (a) the cellulose/amine oxide ratio is kept at a predetermined level by preregulation, and the water content of the extrusion solution is kept at a predetermined level by a main regulation after leaving step (b). This method allows accurate regulation of the composition of the solution.
    Type: Grant
    Filed: September 29, 2000
    Date of Patent: February 5, 2008
    Assignee: Lenzing AG
    Inventors: Uwe Kind, Leo Kagalowski, Marco Blech
  • Patent number: 7175792
    Abstract: Process for manufacture of cellulose mouldings, such as fibres, filaments, or films, from TCF-bleached or ECF-bleached cellulose, in which the bleached cellulose is dissolved in an aqueous tertiary aminoxide to form a mouldable cellulose, the cellulose solution deforms, and the moulding comes into being by coagulation of the deformed solution, characterized in that, to reduce the cellulose decomposition in the process, TCF-bleached cellulose is used comprising carboxyl group content in the range from 1 to 35 ?mol/g or an ECF-bleached cellulose with carboxyl group content in the range from 1 to 50 ?mol/g. Cellulose mouldings having a reduced cellulose decomposition may be formed by said process.
    Type: Grant
    Filed: September 29, 2000
    Date of Patent: February 13, 2007
    Assignee: Zimmer AG
    Inventors: Ralf-Uwe Bauer, Uwe Kind
  • Patent number: 6972102
    Abstract: The invention relates to a method for continually producing an extrusion solution for producing cellulosed shaped bodies, such as fibres and films, according to the lyocell method. According to the inventive method, (a) a cellulose suspension is produced from cellulose and an aqueous phase in a mass ratio ranging from 1:3 to 1:40, whereby shearing is maintained for between 5 to 200 minutes. (b) The cellulose suspension is dewatered to form a material having a cellulose content ranging from 20 to 80 mass % and the aqueous phase produced thereby is at least partially returned to step (a). (c) The humid cellulose material being homogenised is transported through a first shearing zone in the absence of N-methylmorpholine-N-oxide.
    Type: Grant
    Filed: September 29, 2000
    Date of Patent: December 6, 2005
    Assignee: Zimmer AG
    Inventors: Ralf-Uwe Bauer, Uwe Kind
  • Patent number: 6610134
    Abstract: A procedure to continuously produce a suspension of cellulose in aqueous N-methylmorpholine-N-oxide is characterized in that: (a) The cellulose is conveyed through a first shearing zone in the absence of N-methylmorpholine-N-oxide and is homogenized, and (b) the homogenized cellulose is conveyed through a second shearing zone after adding enough aqueous N-methylmorpholine-N-oxide for a suspension to result in a N-methylmorpholine-N-oxide content in the liquid phase of 70-80 weight percent after mixing, whereby the cellulose or suspension almost completely fills the available content cross-section in the shearing zones.
    Type: Grant
    Filed: May 15, 2001
    Date of Patent: August 26, 2003
    Assignee: Alceru Schwarza GmbH
    Inventors: Uwe Kind, Leo Kagalowski, Marco Blech
  • Patent number: 5275818
    Abstract: A communication apparatus enabling a person speaking a native language to communicate with a person who speaks a foreign language or target language. The communication apparatus includes graphic symbols depicting objects which are commonly understood in both the native language and the target language, and text in both the native language and the target language, which is used in conjunction with the graphic symbols. The native language text includes phonetic spellings of the phrases which were translated into the target language. The communication apparatus is applied to any article which is worn, carried or used by persons speaking the native language. The native language text may be inverted so that it is viewable by the wearer of a garment upon which the present invention is applied. Communication is accomplished by selectively pointing to different areas in the grid containing the text and graphic symbols, and by simultaneously pronouncing the phonetic spellings of the phrases.
    Type: Grant
    Filed: February 11, 1992
    Date of Patent: January 4, 1994
    Inventor: Uwe Kind