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    CIGARETTE FILTER MATERIAL AND CIGARETTE FILTER
    3.
    发明公开
    CIGARETTE FILTER MATERIAL AND CIGARETTE FILTER 有权
    ZIGARETTENFILTERMATERIAL UND ZIGARETTENFILTER

    公开(公告)号：EP1856991A1

    公开(公告)日：2007-11-21

    申请号：EP06712433.9

    申请日：2006-01-26

    申请人： DAICEL CHEMICAL INDUSTRIES, LTD.

    发明人： TANIGUCHI, Hiroki ,  HIBI, Takashi

    IPC分类号： A24D3/14 ,  A24D1/04 ,  A24D3/02

    CPC分类号： A24D3/14

    摘要： A cigarette filter material useful for selectively and efficiently reducing formaldehyde while maintaining a palatable component such as nicotine or tar is provided. A cigarette filter material is obtained by adhesively treating a substrate (such as a cellulose acetate fiber) with a dispersion comprising a particulate polysaccharide having an amino group (e.g., chitosan) and a medium. The medium may be a polar solvent (e.g., water, and an alcohol), and a plasticizer for the substrate. A cigarette filter comprising such cigarette filter material can efficiently and selectively reduce formaldehyde. For example, the cigarette filter ensures a retention of formaldehyde of not more than 65% while maintaining retentions of nicotine and tar of not less than 75%, respectively.

    摘要翻译： 提供了一种用于选择性和有效地还原甲醛同时保持可口成分如尼古丁或焦油的香烟过滤嘴材料。 通过用包含具有氨基的颗粒状多糖（例如壳聚糖）和介质的分散体粘合地处理基材（例如醋酸纤维素纤维）获得香烟过滤嘴材料。 介质可以是极性溶剂（例如水和醇）和用于底物的增塑剂。 包括这种香烟过滤嘴材料的香烟过滤嘴能够有效地选择性地降低甲醛。 例如，香烟过滤器确保甲醛的保留率不超过65％，同时保持尼古丁和焦油的保留率分别不低于75％。

    CELLULOSE ACETATE HAVING EXCELLENT PHYSICAL STRENGTH AND PROCESS FOR PREPARING THE SAME
    4.
    发明公开
    CELLULOSE ACETATE HAVING EXCELLENT PHYSICAL STRENGTH AND PROCESS FOR PREPARING THE SAME 失效
    纤维素食品麻醉大肠杆菌FERTIGKEIT UND VERFAHREN ZUR HERSTELLUNG

    公开(公告)号：EP0769500A1

    公开(公告)日：1997-04-23

    申请号：EP96907721.3

    申请日：1996-03-29

    申请人： DAICEL CHEMICAL INDUSTRIES, LTD.

    发明人： KIYOSE, Atsunobu ,  SHIMAMOTO, Shu ,  SHUTO, Yuichiro ,  TANIGUCHI, Hiroki

    IPC分类号： C08B3/06

    CPC分类号： C08B3/06

    摘要： An object of the invention is to obtain cellulose acetate with improved physical properties, particularly film strength and improved flexibility of the molded product.
    Cellulose acetate wherein average degree of acetylation is not less than 59 %, viscosity average degree of polymerization (DP) is not less than 290, and concentrated solution viscosity (η) according to falling ball viscosity method for viscosity average degree of polymerization (DP) is expressed by the following formula (1): 2.814 × ln(DP) - 11.753 ≦ ln(η) ≦ 7.28 × ln(DP) - 37.059 and a process for production thereof.

    摘要翻译： 本发明的目的是获得具有改进的物理性能，特别是膜强度和改进的成型产品的柔性的乙酸纤维素。 乙酸纤维素平均度不低于59％，粘均聚合度（DP）不低于290，粘度平均聚合度（DP）下降球粘度法的浓缩溶液粘度（η） 由下式（1）表示：＆lt; MATH＆gt;及其制造方法。

    CELLULOSE ACETATE AND PROCESS FOR PRODUCING THE SAME
    7.
    发明公开
    CELLULOSE ACETATE AND PROCESS FOR PRODUCING THE SAME 有权
    ZELLULOSEACETAT SOWIE VERFAHREN ZUR HERSTELLUNG DESSELBEN

    公开(公告)号：EP1270597A1

    公开(公告)日：2003-01-02

    申请号：EP01915837.7

    申请日：2001-03-27

    申请人： Daicel Chemical Industries, Ltd.

    发明人： OZAKI, Toru ,  SASAI, Hirofumi ,  TANIGUCHI, Hiroki ,  NAKAI, Michiyo ,  SUZUKI, Shinsuke

    IPC分类号： C08B3/06

    CPC分类号： C08B3/06

    摘要： The present invention provides a cellulose acetate satisfying at least one requirement selected from the following requirements (A) , (B) and (C), provided that the case where (B) alone is satisfied is excluded.

    Requirement (A) : Bright spotty matters in sizes of 20 µm or more are not more than 20 units/mm 3 .
    Requirement (B) : Blocking constant (K) is not more than 60.
    Requirement (C): The ratio (G'/G") of storage modulus (G') to loss modulus (G") at a measuring frequency of 0.016Hz is not more than 0.2.

    摘要翻译： 本发明提供满足以下要求（A），（B）和（C）中至少一个要求的乙酸纤维素乙酸酯，只要满足（B）单独满足的情况即可。 要求（A）：尺寸为20亩以上的亮点不大于20单位/ mm 3。 要求（B）：阻塞常数（K）不大于60.要求（C）：测量频率为0.016时储能模量（G'）与损耗模量（G“）的比值（G'/ G”） Hz不大于0.2。