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    • 7. 发明申请
    • METHOD OF PRODUCING SHAPE-RETAINING CELLULOSE PRODUCTS, AND SHAPE-RETAINING CELLULOSE PRODUCTS THEREFROM
    • 生产保持形状的纤维素产品的方法和保持纤维素产品的形状
    • WO2017155456A1
    • 2017-09-14
    • PCT/SE2017/050221
    • 2017-03-08
    • INNVENTIA AB
    • GRANBERG, HjalmarERLANDSSON, JohanLÓPEZ DURÁN, VerónicaSANDBERG, MatsWÅGBERG, LarsLARSSON, Per
    • C08J9/28B01J13/00C08B15/10B82Y30/00C08J9/35D21H11/18D21H21/52
    • The present invention concerns a method of producing a shape-retaining cellulose product(s) comprising the following steps: a)providing a cellulose dispersion comprising a cellulose material and water; b)forming the cellulose dispersion to selected shape(s); c)oxidizing the cellulose dispersion with periodate; d)freezing the oxidized cellulose dispersion; e)thawing the oxidized cellulose dispersion, thereby forming a cross-linked cellulose dispersion; f)optionally performing a solvent exchange on the cross-linked cellulose dispersion; g)removing water and/or solvent from the cross-linked cellulose dispersion whilst the water and/or solvent of the dispersion is in the liquid phase, thereby providing the shape-retaining cellulose product(s), wherein step b) is performed prior to step c), simultaneously with step c) or after step c). The invention also concerns shape-retaining cellulose products obtained by such a method and uses for such products.
    • 本发明涉及生产形状保持纤维素产品的方法,其包括以下步骤:a)提供包含纤维素材料和水的纤维素分散体; b)将纤维素分散体形成为选定的形状; c)用高碘酸盐氧化纤维素分散体; d)冷冻氧化纤维素分散体; e)解冻氧化的纤维素分散体,从而形成交联的纤维素分散体; f)任选地在交联的纤维素分散体上进行溶剂交换; g)在分散体的水和/或溶剂处于液相中时,从交联的纤维素分散体中除去水和/或溶剂,由此提供形状保持纤维素产物,其中步骤b)事先进行 到步骤c),与步骤c)同时或在步骤c)之后。 本发明还涉及通过这种方法获得的形状保持纤维素产品和用于这种产品的用途。