WIPO publishes UPM patent of 'A method and a system for manufacturing cellulosic material'

GENEVA , December 25, 2012 () – WIPO PUBLISHES PATENT OF UPM-KYMMENE, TAMPER JUHA, NUOPPONEN MARKUS, KOSONEN HARRI FOR "A METHOD AND A SYSTEM FOR MANUFACTURING CELLULOSIC MATERIAL" (FINNISH INVENTORS)

Publication No. WO/2012/172170 was published on Dec. 20.

Title of the invention: "A METHOD AND A SYSTEM FOR MANUFACTURING CELLULOSIC MATERIAL."

Applicants: UPM-KYMMENE CORPORATION (FI), TAMPER Juha (FI), NUOPPONEN Markus (FI) and KOSONEN Harri (FI).

Inventors: Juha Tamper (FI), Markus Nuopponen (FI) and Harri Kosonen (FI).

According to the abstract posted by the World Intellectual Property Organization: "The invention relates to a method for manufacturing cellulosic material, the method comprising: introducing cellulose fibers as cellulosic raw material (1) to a system, and conveying the cellulose fibers (1) to an extruder (6) comprising a mixing part (6a, 6b) and/or a refining part (6d). The method further comprises dosing at least one chemical to the system before the extruder (6) and/or in the extruder (6) and performing a reaction between the cellulose fibers and the chemical(s) at least partly in the extruder (6), wherein the reaction is performed at a consistency of at least 40%, and/or dosing at least one chemical to the system before the extruder (6) and/or in the extruder (6) and mixing the cellulose fibers and the chemical(s) in the mixing part (6a, 6b) of the extruder (6), wherein the mixing step is performed at a consistency of at least 40%,and/or refining the introduced cellulose fibers at least partly in the refining part (6d) of the extruder (6), wherein the refining step is performed at a consistency of at least 5%. The invention further relates to a system for manufacturing cellulosic material. The invention further relates to use of the produced cellulosic material in the manufacture of fibril cellulose pulp."

The patent was filed on June 13 under Application No. PCT/FI2012/050589.

For further information please visit: http://www.wipo.int/patentscope/search/en/detail.jsf?docId=WO2012172170

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