Bacterial cellulose concentrate and method for the treatment of the
concentrate
    1.
    发明授权
    Bacterial cellulose concentrate and method for the treatment of the concentrate 失效
    细菌纤维素浓缩物和浓缩物的处理方法

    公开(公告)号:US6069136A

    公开(公告)日:2000-05-30

    申请号:US983323

    申请日:1998-03-16

    摘要: The purpose of the present invention is to provide a simple and economical method for the production of BC having improved properties such as dispesibility, suspensibility and viscosity.The present invention relates to a method for the improvement of dispersibility and suspensibility of bacterial cellulose, comprising concentrating an aqueous suspension of bacterial cellulose to a final concentration of the bacterial cellulose of between 10% by weight or more and less than 75% by weight, dispersing it again into an aqueous solution and homogenizing the bacterial cellulose in the resulting dispersion, to a method for the improvement of paper properties of bacterial cellulose, comprising concentrating an aqueous suspension of homogenized bacterial cellulose to a final concentration of the bacterial cellulose of between 4% by weight or more and less than 75% by weight, dispersing it again into an aqueous solution and homogenizing the bacterial cellulose in the resulting dispersion, and to the BC concentrate thus prepared.

    摘要翻译: PCT No.PCT / JP97 / 01785 Sec。 371日期:1998年3月16日 102(e)1998年3月16日PCT PCT 1997年5月26日PCT公布。 第WO97 / 45452号公报 日期1997年12月4日本发明的目的是提供一种用于生产具有改进的性能如可分散性,悬浮性和粘度的BC的简单且经济的方法。 本发明涉及一种提高细菌纤维素的分散性和悬浮性的方法,包括将细菌纤维素的水性悬浮液浓缩至细菌纤维素的最终浓度为10重量%以上且小于75重量% 将其再次分散在水溶液中并均化所得分散体中的细菌纤维素,以改进细菌纤维素的纸张性能的方法,其包括将均化的细菌纤维素的水性悬浮液浓缩至细菌纤维素的最终浓度为4 重量%以上且小于75重量%,将其再次分散在水溶液中,并将所得分散体中的细菌纤维素均化,并将其如此制备。

    Method for processing bacterial cellulose
    2.
    发明授权
    Method for processing bacterial cellulose 失效
    细菌纤维素的处理方法

    公开(公告)号:US6153413A

    公开(公告)日:2000-11-28

    申请号:US11478

    申请日:1998-05-27

    摘要: The purpose of the present invention is to provide a convenient method for restoring the various properties of BC even after it is once dried.The present invention relates to a method for processing a bacterial cellulose comprising dehydrating and drying under tension the bacterial cellulose produced in an agitated culture followed by homogenization, and to a method for processing a bacterial cellulose comprising dehydrating and drying the bacterial cellulose produced in an agitated culture under such conditions that a degree of planar orientation (h1/h2) (wherein h1 and h2 mean the height of a peak originating in the crystallographic plane (110) and the crystallographic plane (110), respectively, in a diffraction curve obtained with X-ray diffractometry by a reflection method) will be 2 or more, followed by homogenization.An excellent retention aid for fillers and sheet with a high strength may be prepared by using the bacterial cellulose obtained by the above methods.

    摘要翻译: PCT No.PCT / JP97 / 01949 Sec。 371日期:1998年5月27日 102(e)日期1998年5月27日PCT提交1997年6月9日PCT公布。 公开号WO97 / 48730 PCT 日期1997年12月24日本发明的目的是提供一种方便的方法,用于恢复BC的各种性质,即使其一旦干燥。 本发明涉及一种细菌纤维素的加工方法,其特征在于包括在搅拌培养基中随后进行均质化的细菌纤维素在张力下脱水和干燥,以及一种加工细菌纤维素的方法,该方法包括将搅拌的细菌纤维素 在平面取向度(h1 / h2)(其中h1和h2表示起始于结晶平面(1 + E,ov 1 + EE 0)和晶体平面(110)的峰的高度)的条件下的培养, 分别用通过反射法的X射线衍射法得到的衍射曲线)为2以上,进行均质化。 通过使用通过上述方法得到的细菌纤维素可以制备出具有高强度的填料和片材的优异助留剂。