Stockhausen Gmbh & Co Kg

Thuringisches Institut Fur Textil Und Kunststoff-Forschung E. V.

Carmen Knobelsdorf

Frank-Günter Niemz

Edgar Herrmann

Bernd Riedel

Georg Werner

Reiner Buettner

Michael Schuemann

Ingo Notz

Waldemar Dohrn

The invention relates to a flat heater, which is used for applications in the range of heating voltages of up to 1000 V, produces attainable powers of up to 2 kW/mand is characterized by the fact that the electrical resistance required for the heating is formed by an electrically conductive cellulose nonwoven. Metallic contacts which are incorporated ensure the connection of the conductive cellulose nonwoven to a voltage source. Polymer films applied on both sides provide mechanical and electrical protection and prevent the ingress of moisture into the cellulose nonwoven.

Flat heater including conductive non-woven cellulose material

A process for producing cellulosic formed materials having high water retention capacity according to the dry-wet extrusion process by producing a solution of 5 to 20 wt.-% of cellulose in a hydrous tertiary amine oxide, extruding the solution, stretching the extrudate in a non-precipitating medium, and precipitating the formed materials in an aqueous or alcoholic precipitating bath, characterized by extruding a solution including 0.01 to 250 wt.-%, relative to cellulose, of at least one superabsorbent polymer having a grain size of &#x2266;100 &#x3bc;m. The fibers, films, and composite materials being formed are remarkable for their high water retention capacity and are suitable in the production of hygiene products, baby or disposable diapers, sanitary towels, tampons, incontinence articles, absorbent patches, wound dressings, strappings, bandages, absorbent cloths, moisture-absorbing clothing, bed mattings, filter materials or filters, packaging materials, or cable sheathings.

Method for producing cellulose shaped bodies with super-absorbent properties

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Saalfeld, Germany

Carmen Knobelsdorf