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公开(公告)号：EP0945486B1
公开(公告)日：2001-06-13
申请号：EP99105470.1
申请日：1999-03-17
发明人： Shuto, Yuichiro , Taniguchi, Hiroki , Nakanishi, Yukiko , Murayama, Masahiko c/o FUJI PHOTO FILM CO., LTD.
CPC分类号： C08J3/095 , C08J5/18 , C08J2301/10 , C08L1/10 , C08L1/12 , C08L2666/02
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2.发明授权
公开(公告)号：EP0943626B1
公开(公告)日：2006-12-13
申请号：EP98116870.1
申请日：1998-09-07
CPC分类号： C08J5/18 , C08B3/06 , C08J2301/12 , D01F2/28
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3.发明公开Film comprising a cellulose triacetate and method of producing the same 有权Film enthaltend ein Zellulose-Triacetat und Methode zur Herstellung desselben
公开(公告)号：EP1422244A1
公开(公告)日：2004-05-26
申请号：EP04000877.3
申请日：1998-09-07
CPC分类号： C08J5/18 , C08B3/06 , C08J2301/12 , D01F2/28
摘要： The present invention relates to a film comprising a cellulose triacetate and to a method of producing same.
The form of the carboxyl group binding to a cellulose acetate and/or the hemicellulose acetate or the content of an alkali metal or an alkaline earth metal in a cellulose acetate affects releasability and transparency of a film or spinnability of a dope.摘要翻译： 本发明涉及包含三醋酸纤维素的薄膜及其制备方法。 与乙酸纤维素和/或半纤维素乙酸酯结合的羧基的形式或乙酸纤维素中的碱金属或碱土金属的含量影响膜的脱模性和透明性或涂料的可纺性。
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4.发明授权
公开(公告)号：EP1422244B1
公开(公告)日：2009-08-19
申请号：EP04000877.3
申请日：1998-09-07
CPC分类号： C08J5/18 , C08B3/06 , C08J2301/12 , D01F2/28
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公开(公告)号：EP0945486A1
公开(公告)日：1999-09-29
申请号：EP99105470.1
申请日：1999-03-17
发明人： Shuto, Yuichiro , Taniguchi, Hiroki , Nakanishi, Yukiko , Murayama, Masahiko c/o FUJI PHOTO FILM CO., LTD.
CPC分类号： C08J3/095 , C08J5/18 , C08J2301/10 , C08L1/10 , C08L1/12 , C08L2666/02
摘要： The present invention provides a raw material composition for producing a film excellent in optical and mechanical characteristics to which the solvent-casting is applicable.
Namely, the present invention provides a cellulose ester composition, comprising 1 to 99 % by weight of cellulose triacetate prepared by substituting hydroxyl groups of cellulose with acetyl and having a degree of substitution with acetyl, DSace, which satisfies the relationship: 2.7 ≦ DSace ≦ 3.0, and 99 to 1 % by weight of a mixed fatty acid ester of cellulose prepared by substituting hydroxyl groups of cellulose with acetyl and acyl having three or more carbon atoms and having degrees of substitution with acetyl and the acyl having three or more carbon atoms, DSace and DSacyl, respectively, which satisfy the relationships: (I) 2.20 ≦ DSace ≦ 2.95, (II) 0.05 ≦ DSacyl ≦ 0.80 and (III) 2.60 ≦ DSace + DSacyl ≦ 3.00.摘要翻译： 本发明提供了一种用于制造可应用溶剂铸造的光学和机械特性优异的膜的原料组合物。 即，本发明提供一种纤维素酯组合物，其包含1至99重量％的纤维素三乙酸酯，其通过用乙酰基取代纤维素的羟基并且具有乙酰基取代度DSace制备，其满足以下关系：2.7
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6.发明公开
公开(公告)号：EP0943626A1
公开(公告)日：1999-09-22
申请号：EP98116870.1
申请日：1998-09-07
CPC分类号： C08J5/18 , C08B3/06 , C08J2301/12 , D01F2/28
摘要： Using the dope containing the following cellulose acetate (1), (2), or (3), a film is prepared by the casting process:
(1) a cellulose acetate having carboxyl groups binding to at least one member selected from the group consisting of a cellulose acetate and a hemicellulose acetate, wherein at least a part of said carboxyl groups are in an acidic form;
(2) a cellulose acetate containing at least one member selected from the group consisiting of an acid having an acid dissociation exponent pKa of 1.93 to 4.50 in water, an alkali metal salt of said acid and an alkaline earth metal of said acid; or
(3) a cellulose acetate containing an alkali metal or an alkaline earth metal wherein the total content of an alkaline metal and an alkaline earth metal in 1 gram of the cellulose acetate is from an effective amount to 5.5 x 10 -6 equivalent (in terms of ion equivalent). The above cellulose acetate is also useful for spinning process. The cellulose acetate includes a cellulose diacetate and a cellulose triacetate. The cellulose acetate of the present invention has high film-releasability from a support and excellent optical characteristics.摘要翻译： 使用含有以下醋酸纤维素（1），（2）或（3）的涂料，通过流延法制备膜：（1）具有羧基的乙酸纤维素结合至少一种选自 的乙酸纤维素和乙酸半纤维素，其中所述羧基的至少一部分为酸性形式; （2）含有至少一种选自酸水解酸指数pKa为1.93〜4.50的酸，所述酸的碱金属盐和所述酸的碱土金属的酸的纤维素乙酸酯; 或（3）含有碱金属或碱土金属的乙酸纤维素，其中1g醋酸纤维素中的碱金属和碱土金属的总含量为有效量至5.5×10 -6当量 （以离子当量计）。 上述醋酸纤维素也可用于纺丝过程。 醋酸纤维素包括二乙酸纤维素和三醋酸纤维素。 本发明的乙酸纤维素与载体的剥离性高，光学特性优异。
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