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1. 发明授权

US5856006A Tobacco filter material and a method for producing the same 失效
标题翻译：烟草过滤材料及其制造方法
公开(公告)号：US5856006A
公开(公告)日：1999-01-05
申请号：US532280
申请日：1995-09-22
申请人： Tanemi Asai , Syu Shimamoto , Hiroyuki Matsumura , Tohru Shibata
发明人： Tanemi Asai , Syu Shimamoto , Hiroyuki Matsumura , Tohru Shibata
IPC分类号： A24D3/10 , B32B23/00 , A24B15/28 , B01D39/00
CPC分类号： A24D3/10 , A24D3/065 , A24D3/068 , Y10T428/2933 , Y10T428/2938 , Y10T428/2965
摘要： A tobacco filter material containing fibers which have a core and a surface layer which surrounds the core, wherein the core comprises a non-esterified cellulose and the surface layer comprises a cellulose ester. The fiber may be (A) a cellulose fiber coated with a cellulose ester or (B) a fibrous cellulose derivative with its surface layer esterified by an organic acid and having an average degree of substitution of not more than 1.5. Wood pulp can be used as the cellulose fiber and the amount of the cellulose ester in the coated cellulose (A) is 0.1% by weight or more. The cellulose derivative (B) has its surface layer esterified with an organic acid and retains a non-esterified core portion. This cellulose derivative may be obtained, for example, by the non-catalytic liquid phase treatment of a cellulose fiber with an organic acid and an organic acid anhydride or halide.
摘要翻译：一种含有纤维的烟草过滤材料，所述纤维具有包围所述芯的芯和表面层，其中所述芯包含非酯化纤维素，并且所述表面层包含纤维素酯。纤维可以是（A）纤维素酯的纤维素纤维或（B）纤维素纤维素衍生物，其表层被有机酸酯化并且平均取代度不超过1.5。可以使用木浆作为纤维素纤维，并且涂布的纤维素（A）中的纤维素酯的量为0.1重量％以上。纤维素衍生物（B）的表层用有机酸酯化并保留未酯化的核心部分。该纤维素衍生物可以通过例如用有机酸和有机酸酐或卤化物的纤维素纤维的非催化液相处理得到。

2. 发明授权

US06344239B1 Method for producing a tobacco filter material 有权
标题翻译：生产烟草过滤材料的方法
公开(公告)号：US06344239B1
公开(公告)日：2002-02-05
申请号：US09175464
申请日：1998-10-20
申请人： Tanemi Asai , Syu Shimamoto , Hiroyuki Matsumura , Tohru Shibata
发明人： Tanemi Asai , Syu Shimamoto , Hiroyuki Matsumura , Tohru Shibata
IPC分类号： B05D700
CPC分类号： A24D3/10 , A24D3/065 , A24D3/068 , Y10T428/2933 , Y10T428/2938 , Y10T428/2965
摘要： A method for producing a tobacco filter material which is either (A) a coating process for coating the surface of a fibrous or particulate cellulose with a cellulose ester having an average substitution degree of about 2.0 to about 2.6 to give a coated cellulose, and wet webbing the coated cellulose into a sheet, or (B) a treating process for treating a naturally-occurring or regenerated cellulose fiber or particle with an organic acid and an organic acid anhydride or organic acid halide in a liquid phase to give a cellulose derivative.
摘要翻译：一种生产烟草过滤材料的方法，它是（A）用平均取代度为约2.0至约2.6的纤维素酯涂覆纤维或颗粒状纤维素的表面的涂布方法，得到涂布的纤维素，湿润将涂覆的纤维素织成片材，或（B）用液相中的有机酸和有机酸酐或有机酰卤处理天然存在的或再生的纤维素纤维或颗粒的处理方法，得到纤维素衍生物。

3. 发明授权

US5863652A Tobacco smoke filter materials, fibrous cellulose esters, and production processes 失效
标题翻译：烟草烟雾过滤材料，纤维素酯和生产工艺
公开(公告)号：US5863652A
公开(公告)日：1999-01-26
申请号：US813301
申请日：1997-03-10
申请人： Hiroyuki Matsumura , Syu Shimamoto , Tohru Shibata
发明人： Hiroyuki Matsumura , Syu Shimamoto , Tohru Shibata
IPC分类号： A24D3/02 , A24D3/04 , A24D3/10 , C08L101/16 , D01D5/06 , D01D5/40 , D01F2/28 , D02G3/00 , D01F2/00
CPC分类号： A24D3/10 , D01D5/40 , D01F2/28 , Y10T428/2904 , Y10T428/2965
摘要： A tobacco smoke filter material comprises a fibrillated cellulose ester fiber with an average fiber diameter of 15 to 250 .mu.m and a BET specific surface area of 0.5 to 4.5 m.sup.2 /g. The fibrous cellulose ester content of the material may for example be not less than 20 weight %. The cellulose ester fiber is provided by, for example, extruding a cellulose ester solution from a nozzle into a precipitating agent for the particular cellulose ester and subjecting the extrudate to a shear force. This filter material can be used in the form of, for example, a filament, web or sheet to provide a tobacco smoke filter which assures good smoking qualities and excellent wet disintegratability.
摘要翻译：烟草烟雾过滤材料包含平均纤维直径为15〜250μm，BET比表面积为0.5〜4.5m 2 / g的纤维化纤维素酯纤维。材料的纤维状纤维素酯含量例如可以不小于20重量％。纤维素酯纤维通过例如将纤维素酯溶液从喷嘴挤出到特定纤维素酯的沉淀剂中并使挤出物经受剪切力而提供。该过滤材料可以以例如丝，纤维网或片材的形式使用，以提供烟草烟雾过滤器，其确保良好的吸烟质量和优异的湿分解性。

4. 发明授权

US5678577A Tobacco filter material and a tobacco filter as produced using the same 失效
标题翻译：烟草过滤材料和使用其制造的烟草过滤嘴
公开(公告)号：US5678577A
公开(公告)日：1997-10-21
申请号：US550640
申请日：1995-10-31
申请人： Hiroyuki Matsumura , Syu Shimamoto , Tohru Shibata
发明人： Hiroyuki Matsumura , Syu Shimamoto , Tohru Shibata
IPC分类号： A24D3/10 , B01D27/00
CPC分类号： A24D3/068 , A24D3/10
摘要： A tobacco filter is produced by wrapping up a sheet-like filter material having a web structure and comprising a cellulose ester short staple into a rod-form. As the cellulose ester short staple, a short staple that is non-crimped and/or has a modified cross section where a ratio D1/D2 of a diameter D1 of the circumscribed circle to a diameter D2 of the inscribed circle, each circle being of the cross section, of not less than 2 is used. The short staple includes e.g. a cellulose acetate fiber with an average fiber length of 1 to 10 mm and fineness of 1 to 10 deniers. The short staple may be incorporated with a beaten pulp with a Schopper-Riegler freeness of 20 to 90.degree. SR and/or a binder. The ratio of the short staple to the beaten pulp may for example be about 90/10 to 20/80 (by weight).
摘要翻译：通过将具有纤维网结构并且包含纤维素酯短纤维的片状过滤材料卷成棒状来生产烟草过滤嘴。作为纤维素酯短纤维，没有卷曲的短纤维和/或具有改进的横截面，其中外接圆的直径D1与内切圆的直径D2的比D1 / D2，每个圆为使用不小于2的横截面。短钉包括例如平均纤维长度为1〜10mm，细度为1〜10旦的醋酸纤维素纤维。短纤维可以掺入具有20至90°SR的Schopper-Riegler打浆度和/或粘合剂的打浆纸浆。短纤维与打浆的比例可以为约90/10至20/80（重量比）。

5. 发明授权

US5927287A Tobacco filter material and a tobacco filter as produced using the same 失效
标题翻译：烟草过滤材料和使用其制造的烟草过滤嘴
公开(公告)号：US5927287A
公开(公告)日：1999-07-27
申请号：US865672
申请日：1997-05-30
申请人： Hiroyuki Matsumura , Syu Shimamoto , Tohru Shibata
发明人： Hiroyuki Matsumura , Syu Shimamoto , Tohru Shibata
IPC分类号： A24D3/10 , A24D3/06
CPC分类号： A24D3/068 , A24D3/10
摘要： A tobacco filter is produced by wrapping up a sheet-like filter material having a web structure and comprising a cellulose ester short staple into a rodform. As the cellulose ester short staple, a short staple that is non-crimped and/or has a modified cross section where a ratio D1/D2 of a diameter D1 of the circumscribed circle to a diameter D2 of the inscribed circle, each circle being of the cross section, of not less than 2 is used. The short staple includes e.g. a cellulose acetate fiber with an average fiber length of 1 to 10 mm and fineness of 1 to 10 deniers. The short staple may be incorporated with a beaten pulp with a Schopper-Riegler freeness of 20 to 90.degree. SR and/or a binder. The ratio of the short staple to the beaten pulp may for example be about 90/10 to 20/80 (by weight).
摘要翻译：通过将具有纤维网结构并且包含纤维素酯短纤维的片状过滤材料卷起成棒状来生产烟草过滤嘴。作为纤维素酯短纤维，没有卷曲的短纤维和/或具有改进的横截面，其中外接圆的直径D1与内切圆的直径D2的比D1 / D2，每个圆为使用不小于2的横截面。短钉包括例如平均纤维长度为1〜10mm，细度为1〜10旦的醋酸纤维素纤维。短纤维可以掺入具有20至90°SR的Schopper-Riegler打浆度和/或粘合剂的打浆纸浆。短纤维与打浆的比例可以为约90/10至20/80（重量比）。

6. 发明授权

US5692527A Tobacco smoke filter materials, fibrous cellulose esters, and production processes 失效
标题翻译：烟草烟雾过滤材料，纤维素酯和生产工艺
公开(公告)号：US5692527A
公开(公告)日：1997-12-02
申请号：US546089
申请日：1995-10-20
申请人： Hiroyuki Matsumura , Syu Shimamoto , Tohru Shibata
发明人： Hiroyuki Matsumura , Syu Shimamoto , Tohru Shibata
IPC分类号： A24D3/02 , A24D3/04 , A24D3/10 , C08L101/16 , D01D5/06 , D01D5/40 , D01F2/28 , A24D3/00
CPC分类号： A24D3/10 , D01D5/40 , D01F2/28 , Y10T428/2904 , Y10T428/2965
摘要： A tobacco smoke filter material has a fibrillated cellulose ester fiber with an average fiber diameter of 15 to 250 .mu.m and a BET specific surface area of 0.5 to 4.5 m.sup.2 /g. The fibrous cellulose ester content of the material may for example be not less than 20 weight %. The cellulose ester fiber is provided by, for example, extruding a cellulose ester solution from a nozzle into a precipitating agent for the particular cellulose ester and subjecting the extrudate to a shear force. This filter material can be used in the form of, for example, a filament, web or sheet to provide a tobacco smoke filter which assures good smoking qualities and excellent wet disintegratability.
摘要翻译：烟草烟雾过滤材料具有平均纤维直径为15〜250μm，BET比表面积为0.5〜4.5m 2 / g的纤维化纤维素酯纤维。材料的纤维状纤维素酯含量例如可以不小于20重量％。纤维素酯纤维通过例如将纤维素酯溶液从喷嘴挤出到特定纤维素酯的沉淀剂中并使挤出物经受剪切力而提供。该过滤材料可以以例如丝，纤维网或片材的形式使用，以提供烟草烟雾过滤器，其确保良好的吸烟质量和优异的湿分解性。

7. 发明授权

US5977346A Fatty acid ester of cellulose, cellulose diacetate and processes for the preparation thereof 失效
标题翻译：纤维素脂肪酸酯，二乙酸纤维素及其制备方法
公开(公告)号：US5977346A
公开(公告)日：1999-11-02
申请号：US764073
申请日：1996-11-26
申请人： Shiro Saka , Hiroyuki Matsumura , Naoto Habu , Yoshiaki Kaino , Ryouta Iwata , Tanemi Asai , Syu Shimamoto
发明人： Shiro Saka , Hiroyuki Matsumura , Naoto Habu , Yoshiaki Kaino , Ryouta Iwata , Tanemi Asai , Syu Shimamoto
IPC分类号： C08B3/06 , C08B3/08 , C08B3/22 , C08B3/26
CPC分类号： C08B3/06
摘要： A fatty acid ester of cellulose having excellent transparency, filterability and spinnability in spite of its high content of mannose and xylose, wherein the total molar content of mannose and xylose accounts for at least 7% of that of glucose, mannose and xylose, and the amount of filtration satisfies a specified requirement. Such a fatty acid ester of cellulose is prepared by using a pulp having a low .alpha.-cellulose content as a raw material and a fatty acid corresponding to the ester as a diluent and adding an organic solvent in an amount of at least 10% by weight based on the diluent in any step during the preparation. In the preparation of cellulose diacetate, which excellent filterability and transparency, by the acetic acid process, the cellulose diacetate obtained by aging is dissolved in a solvent which can dissolve it and the resulting cellulose diacetate is recovered.
摘要翻译：纤维素的脂肪酸酯虽然甘露糖和木糖含量高，但透明性，过滤性和纺丝性优异，其中甘露糖和木糖的总摩尔含量占葡萄糖，甘露糖和木糖的总摩尔含量至少为7％过滤量满足规定要求。这种纤维素的脂肪酸酯是通过使用具有低α-纤维素含量的纸浆作为原料和对应于酯作为稀释剂的脂肪酸并加入至少10重量％的有机溶剂来制备的基于制备过程中任何步骤中的稀释剂。在制备纤维素二乙酸酯时，其过滤性和透明度优异，通过乙酸法，将通过老化获得的纤维素二乙酸酯溶解在可溶解的溶剂中，并回收所得的二乙酸纤维素。

8. 发明授权

US5711322A Tobacco filter material and a method of producing the same 失效
公开(公告)号：US5711322A
公开(公告)日：1998-01-27
申请号：US301017
申请日：1994-09-06
申请人： Hitoshi Tsugaya , Syu Shimamoto
发明人： Hitoshi Tsugaya , Syu Shimamoto
IPC分类号： A24D3/02 , A24D3/04 , A24D3/08 , A24D3/10 , A24D3/16 , B01J20/24 , C08L101/16 , D21H11/16 , D21H13/06
CPC分类号： A24D3/16 , A24D3/10
摘要： Using a slurry containing a particulate or fibrous cellulose ester and a wood pulp with a Canadian standard freeness of 100 to 800 ml in a ratio of 10/90 to 90/10 (weight %), a tobacco filter material in the form of a sheet having a nonwoven web structure is produced. The slurry may contain a microfibrillated cellulose in a proportion of 0.1 to 10 weight % on a nonvolatile matter basis. The cellulose ester may be a cellulose acetate with a combined acetic acid in the range of 30 to 62%. This tobacco filter material in a sheet form can be applied to a tobacco filter having a high dry strength and, yet, a high degree of wet disintegratability without adversely affecting the smoking quality of tobacco. Thus, the potential environmental pollution is mitigated by the tobacco filter.

9. 发明授权

US5967149A Tobacco filter material and a method of producing the same 失效
标题翻译：烟草过滤材料及其制造方法
公开(公告)号：US5967149A
公开(公告)日：1999-10-19
申请号：US899637
申请日：1997-07-24
申请人： Hitoshi Tsugaya , Syu Shimamoto
发明人： Hitoshi Tsugaya , Syu Shimamoto
IPC分类号： A24D3/02 , A24D3/04 , A24D3/08 , A24D3/10 , A24D3/16 , B01J20/24 , C08L101/16 , D21H11/16 , D21H13/06
CPC分类号： A24D3/16 , A24D3/10
摘要： Using a slurry containing a particulate or fibrous cellulose ester and a wood pulp with a Canadian standard freeness of 100 to 800 ml in a ratio of 10/90 to 90/10 (weight %), a tobacco filter material in the form of a sheet having a nonwoven web structure is produced. The slurry may contain a microfibrillated cellulose in a proportion of 0.1 to 10 weight % on a nonvolatile matter basis. The cellulose ester may be a cellulose acetate with a combined acetic acid in the range of 30 to 62%. This tobacco filter material in a sheet form can be applied to a tobacco filter having a high dry strength and, yet, a high degree of wet disintegratability without adversely affecting the smoking quality of tobacco. Thus, the potential environmental pollution is mitigated by the tobacco filter.
摘要翻译：使用含有10/90至90/10（重量％）比例的加拿大标准游离度为100至800ml的颗粒或纤维状纤维素酯和木浆的浆料，以片状形式的烟草过滤材料产生非织造纤维网结构。浆料可以以非挥发物为基准含有0.1〜10重量％的微纤化纤维素。纤维素酯可以是乙酸纤维素，其混合乙酸在30至62％的范围内。该片状烟草过滤材料可以应用于具有高干燥强度且高湿度分解性的烟草过滤嘴，而不会不利地影响烟草的吸烟质量。因此，烟草过滤器可以减轻潜在的环境污染。

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