Treatment of Fibres to Endure Processing

Jari Räsänen; Tapani Penttinen; Ali Harlin; Jaakko Hiltunen; Hanne Wikberg; Tekla Tammelin

Treatment of Fibres to Endure Processing

Jari Räsänen (Inventor), Tapani Penttinen (Inventor), Ali Harlin (Inventor), Jaakko Hiltunen (Inventor), Hanne Wikberg (Inventor), Tekla Tammelin (Inventor)

Stora Enso Oyj

Research output: Patent › Patent

Abstract

The invention relates to a method of treating chemical pulp fibres by a polymerizing hydroxy acid, the fibres thus obtained and the products refined from them. In the method, the hydroxy acid reacts with the reactive groups of the fibres in the presence of a catalyst, forming ester bonds. The following units of the same hydroxy acid are oligomerized and/or polymerized to these grafted acid residues. The fibres thus treated and the products refined thereof endure better processing stages that include drawing and stretching than untreated fibres.

Original language	English
Patent number	US9079978 B2
IPC	C08B 3/20
Priority date	18/03/10
Publication status	Published - 14 Jul 2015
MoE publication type	H1 Granted patent

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title = "Treatment of Fibres to Endure Processing",

abstract = "The invention relates to a method of treating chemical pulp fibres by a polymerizing hydroxy acid, the fibres thus obtained and the products refined from them. In the method, the hydroxy acid reacts with the reactive groups of the fibres in the presence of a catalyst, forming ester bonds. The following units of the same hydroxy acid are oligomerized and/or polymerized to these grafted acid residues. The fibres thus treated and the products refined thereof endure better processing stages that include drawing and stretching than untreated fibres.",

author = "Jari R{\"a}s{\"a}nen and Tapani Penttinen and Ali Harlin and Jaakko Hiltunen and Hanne Wikberg and Tekla Tammelin",

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T1 - Treatment of Fibres to Endure Processing

AU - Räsänen, Jari

AU - Penttinen, Tapani

AU - Harlin, Ali

AU - Hiltunen, Jaakko

AU - Wikberg, Hanne

AU - Tammelin, Tekla

PY - 2015/7/14

Y1 - 2015/7/14

N2 - The invention relates to a method of treating chemical pulp fibres by a polymerizing hydroxy acid, the fibres thus obtained and the products refined from them. In the method, the hydroxy acid reacts with the reactive groups of the fibres in the presence of a catalyst, forming ester bonds. The following units of the same hydroxy acid are oligomerized and/or polymerized to these grafted acid residues. The fibres thus treated and the products refined thereof endure better processing stages that include drawing and stretching than untreated fibres.

AB - The invention relates to a method of treating chemical pulp fibres by a polymerizing hydroxy acid, the fibres thus obtained and the products refined from them. In the method, the hydroxy acid reacts with the reactive groups of the fibres in the presence of a catalyst, forming ester bonds. The following units of the same hydroxy acid are oligomerized and/or polymerized to these grafted acid residues. The fibres thus treated and the products refined thereof endure better processing stages that include drawing and stretching than untreated fibres.

UR - https://patents.google.com/patent/US9079978B2/en

M3 - Patent

M1 - US9079978 B2

ER -

Treatment of Fibres to Endure Processing

Abstract

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