Patents Represented by Law Firm Brumbaugh, Graves, Donohue & Paymond
  • Patent number: 5656224
    Abstract: The invention is concerned with a process for the production of a suspension of cellulose in a liquid, aqueous tertiary amine-oxide, wherein shredded cellulose is mixed with the liquid, aqueous tertiary amine-oxide, said process comprising:(A) contacting the shredded cellulose with the liquid, aqueous tertiary amine-oxide, a first mixture being prepared, and(B) spreading this first mixture mechanically as a layer on a surface and transporting it along this surface while intensively being mixed, until a homogeneous suspension is produced which is removed from the surface, wherein(C) measures (A) and (B) are carried out continuously.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: August 12, 1997
    Assignee: Lenzing Aktiengesellschaft
    Inventors: Stefan Zikeli, Peter Hinterholzer