3.
    发明专利
    未知

    公开(公告)号:FI20095291A

    公开(公告)日:2010-09-21

    申请号:FI20095291

    申请日:2009-03-20

    Applicant: STORA ENSO OYJ

    Abstract: The invention relates to a method of treating chemical pulp fibers by a polymerizing hydroxy acid, the fibers thus obtained and the products refined from them. In the method, the hydroxy acid reacts with the reactive groups of the fibers 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 fibers thus treated and the products refined thereof endure better processing stages that include drawing and stretching than untreated fibers.

    TREATMENT OF FIBRES TO ENDURE PROCESSING
    7.
    发明公开
    TREATMENT OF FIBRES TO ENDURE PROCESSING 有权
    百德冯·弗兰德·弗雷尔·赫尔赫特VERARBEITUNGSBESTÄNDIGKEIT

    公开(公告)号:EP2408822A4

    公开(公告)日:2013-11-27

    申请号:EP10753173

    申请日:2010-03-18

    Applicant: STORA ENSO OYJ

    Abstract: The invention relates to a method of treating chemical pulp fibers by a polymerizing hydroxy acid, the fibers thus obtained and the products refined from them. In the method, the hydroxy acid reacts with the reactive groups of the fibers 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 fibers thus treated and the products refined thereof endure better processing stages that include drawing and stretching than untreated fibers.

    Abstract translation: 本发明涉及一种通过聚合羟基酸处理化学纸浆纤维的方法,由此获得的纤维和从其中精制的产品。 在该方法中,羟基酸在催化剂存在下与纤维的反应性基团反应,形成酯键。 以下单元的相同羟基酸被低聚和/或聚合到这些接枝的酸残基上。 如此处理的纤维和其精制产品具有比未处理的纤维更好的加工阶段,包括拉伸和拉伸。

    8.
    发明专利
    未知

    公开(公告)号:FI20095291A0

    公开(公告)日:2009-03-20

    申请号:FI20095291

    申请日:2009-03-20

    Applicant: STORA ENSO OYJ

    Abstract: The invention relates to a method of treating chemical pulp fibers by a polymerizing hydroxy acid, the fibers thus obtained and the products refined from them. In the method, the hydroxy acid reacts with the reactive groups of the fibers 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 fibers thus treated and the products refined thereof endure better processing stages that include drawing and stretching than untreated fibers.

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