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    • 1. 发明专利
    • Method for producing cellulose film
    • 生产纤维素膜的方法
    • JP2011184541A
    • 2011-09-22
    • JP2010050470
    • 2010-03-08
    • Futamura Chemical Co Ltdフタムラ化学株式会社
    • RIN RENTEIMARUTA AYAKOKUMADA KENTAROSUZUKI KEISUKE
    • C08J5/18
    • Y02P20/542
    • PROBLEM TO BE SOLVED: To provide a method for producing a cellulose film, which becomes an alternative method of a prior viscose method and by which strength is imparted to the cellulose film after film formation by stretching.
      SOLUTION: The method for producing the cellulose film includes: a cellulose dissolution process of preparing a cellulose solution by dissolving a raw material cellulose having a polymerization degree of 200-2,000 by using a mixed solvent containing an ionic liquid and an aprotic organic solvent having a Hansen solubility parameter of 10-12; a solidification and film formation process of forming a solidified film-like material by discharging the cellulose solution while making the solution into a film shape in a solidification solution composed of water or alcohol or both of them; and a stretching process of stretching the solidified film-like material.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种纤维素膜的制造方法,其成为现有粘胶法的替代方法,并且通过拉伸在成膜后赋予纤维素膜强度。 解决方案:制造纤维素膜的方法包括:通过使用含有离子液体和非质子有机物的混合溶剂,通过溶解聚合度为200-2,000的原料纤维素来制备纤维素溶液的纤维素溶解方法 汉森溶解度参数为10-12的溶剂; 通过在使纤维素溶液在由水或醇组成的凝固溶液中形成薄膜状态或两者均匀地排出纤维素溶液而形成固化膜状材料的固化和成膜方法; 以及拉伸固化膜状材料的拉伸工序。 版权所有(C)2011,JPO&INPIT
    • 3. 发明专利
    • Method for manufacturing heterogeneous cellulose film
    • 制备异质纤维素膜的方法
    • JP2014162844A
    • 2014-09-08
    • JP2013034613
    • 2013-02-25
    • Futamura Chemical Co Ltdフタムラ化学株式会社Fukuoka Univ学校法人福岡大学
    • KUMADA KENTAROSUZUKI KEISUKEYAO SHIGERUHAMAZAKI HIROSHIYAMAUCHI HISAYO
    • C08B16/00C07D233/58C08J5/18
    • PROBLEM TO BE SOLVED: To provide a method for manufacturing a heterogeneous cellulose film, which makes property of reformed cellulose into a heterogeneous rough surface, by using an ionic liquid for dissolving a cellulose raw material.SOLUTION: The method for manufacturing the heterogeneous cellulose film includes: a raw material dispersion step (S1)of obtaining dispersion by dispersing a cellulose raw material (CM) in an aprotic organic solvent (NS) selected from at least one of N,N-dimethylacetamide, dimethylsulfoxide and acetonitrile; a dissolving step (S2) of obtaining a viscous liquid by adding an ionic liquid (IL) to the dispersion and dissolving the cellulose raw material under a temperature condition of 20-80°C; a film-forming step (S3) of processing the viscous liquid into a film-like object; a coagulation step (S4) of obtaining a cellulose coagulated object by making the film-like object in contact with an organic solvent for coagulation and water in this order; and an immobilization step (S5) of obtaining a cellulose immobilized object by making the cellulose coagulated object in contact with the hydrophilic organic solvent.
    • 要解决的问题:提供一种通过使用用于溶解纤维素原料的离子液体来使重整纤维素变成异质粗糙表面的非均相纤维素膜的制造方法。解决方案:制造异质纤维素膜的方法 包括:通过将纤维素原料(CM)分散在选自N,N-二甲基乙酰胺,二甲基亚砜和乙腈中的至少一种的非质子性有机溶剂(NS)中而获得分散体的原料分散步骤(S1) 溶解步骤(S2),通过向分散体中加入离子液体(IL)获得粘性液体,并在20-80℃的温度条件下溶解纤维素原料; 将粘性液体加工成薄膜状的成膜工序(S3) 通过使薄膜状物质与有机溶剂接触而进行凝固而得到纤维素凝聚体的凝固工序(S4),水依次进行; 以及通过使纤维素凝结物与亲水性有机溶剂接触而获得纤维素固定物的固定步骤(S5)。