Cellulose acetate propionate, solution thereof and cellulose acetate propionate film
    2.
    发明公开
    Cellulose acetate propionate, solution thereof and cellulose acetate propionate film 失效
    醋酸纤维素,它们的乙酸丙酸纤维素溶液和膜

    公开(公告)号:EP0822201A3

    公开(公告)日:1998-12-02

    申请号:EP97112991.1

    申请日:1997-07-29

    IPC分类号: C08B3/16

    CPC分类号: C08J5/18 C08B3/16 C08J2301/14

    摘要: Cellulose acetate propionate is a cellulose ester wherein hydroxyl groups of cellulose are substituted with acetyl and propionyl. Cellulose acetate propionate of the present invention has an amorphous index (Am) of not more than 0.4. Cellulose acetate propionate has a degree of acetyl substitution (DSac) and a degree of propionyl substitution (DSpr), which preferably satisfy the formulas (I) to (III), and more preferably satisfy the formulas (I) to (IV). The present invention also provides a solution of cellulose acetate propionate and a cellulose acetate propionate film. (I) 2.0 (II) 0.05 (III) 2.6 (IV) 1.9

    Tobacco filters and method of producing the same
    3.
    发明公开
    Tobacco filters and method of producing the same 失效
    烟草过滤嘴及其制造方法

    公开(公告)号:EP0634113A2

    公开(公告)日:1995-01-18

    申请号:EP94110892.0

    申请日:1994-07-13

    IPC分类号: A24D3/10 A24D3/14 A24D3/02

    CPC分类号: A24D3/14 A24D3/10

    摘要: A filter rod is produced by adding a water-soluble polymer in the form of an aqueous solution or dispersion, or in a particulate form, to a tow of cellulose ester fiber, with the amount of any water used being controlled within 25 parts by weight relative to 100 parts by weight of the tow, and wrapping the treated tow in wrapping paper. The water contained in the filter rod is removed or the particulate water-soluble polymer is melted by heating to bond the fiber to provide a tobacco filter. The proportion of the water soluble polymer is 0.5 to 30 parts by weight to 100 parts by weight of the tow. To reduce the amount of water relative to the tow, a hot-melt adhesive water-soluble polymer may be employed. As the amount of water added to the tow is thus decreased, the tow can be smoothly wrapped up even at a high speed so that filter productivity is improved. This tobacco filter is highly wet-disintegratable and, hence, contributes to mitigation of the environmental pollution.

    摘要翻译: 滤棒通过将水溶液或分散体形式的水溶性聚合物或颗粒形式添加到纤维素酯纤维束中来制备,其中使用的任何水的量被控制在25重量份 相对于100重量份的丝束,并且将经处理的丝束包裹在包装纸中。 包含在过滤棒中的水被除去或者颗粒状水溶性聚合物通过加热熔化以粘合纤维以提供烟草过滤器。 相对于100重量份的丝束,水溶性聚合物的比例为0.5〜30重量份。 为了减少相对于丝束的水量,可以使用热熔粘合剂水溶性聚合物。 当添加到丝束中的水量因此减少时,丝束即使在高速下也能平稳地卷绕,从而提高了过滤器的生产率。 这种烟草过滤嘴是高度湿分解的,因此有助于减轻环境污染。

    Tobacco filters and method of producing the same
    9.
    发明公开
    Tobacco filters and method of producing the same 失效
    烟草烟雾过滤器,以及它们的制备方法。

    公开(公告)号:EP0634113A3

    公开(公告)日:1995-04-05

    申请号:EP94110892.0

    申请日:1994-07-13

    IPC分类号: A24D3/10 A24D3/14 A24D3/02

    CPC分类号: A24D3/14 A24D3/10

    摘要: A filter rod is produced by adding a water-soluble polymer in the form of an aqueous solution or dispersion, or in a particulate form, to a tow of cellulose ester fiber, with the amount of any water used being controlled within 25 parts by weight relative to 100 parts by weight of the tow, and wrapping the treated tow in wrapping paper. The water contained in the filter rod is removed or the particulate water-soluble polymer is melted by heating to bond the fiber to provide a tobacco filter. The proportion of the water soluble polymer is 0.5 to 30 parts by weight to 100 parts by weight of the tow. To reduce the amount of water relative to the tow, a hot-melt adhesive water-soluble polymer may be employed. As the amount of water added to the tow is thus decreased, the tow can be smoothly wrapped up even at a high speed so that filter productivity is improved. This tobacco filter is highly wet-disintegratable and, hence, contributes to mitigation of the environmental pollution.

    Film comprising a cellulose triacetate and method of producing the same
    10.
    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

    IPC分类号: C08B3/06 C08J5/18 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。