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    Process for Producing Silica Glass Product
    1.
    发明申请
    Process for Producing Silica Glass Product 有权
    二氧化硅玻璃制品生产工艺

    公开(公告)号：US20080164631A1

    公开(公告)日：2008-07-10

    申请号：US11795567

    申请日：2006-02-09

    申请人： Hiroyuki Watanabe ,  Akira Fujinoki ,  Takayuki Imaizumi ,  Kazuhisa Hayakawa ,  Shingo Niinobe

    发明人： Hiroyuki Watanabe ,  Akira Fujinoki ,  Takayuki Imaizumi ,  Kazuhisa Hayakawa ,  Shingo Niinobe

    IPC分类号： B29C47/00

    CPC分类号： C03B20/00 ,  C03B19/06 ,  C03B19/066

    摘要： A process for producing a transparent or opaque silica glass product including mixing a silica fine powder and a cellulose derivative and injection molding the mixture, followed by degreasing treatment and baking treatment, which is characterized in that the cellulose derivative is a cellulose derivative which causes reversible thermal gelation in an aqueous solution of at least one member selected from methyl cellulose, hydroxypropylmethyl cellulose and hydroxyethylmethyl cellulose; in producing a transparent silica glass product, the cellulose derivative is added in water heated at a gelation temperature thereof or higher, and after cooling, the formed aqueous solution is kneaded with the silica fine powder; and in producing an opaque silica glass product, the cellulose derivative is added in a silica slurry containing a silica powder and heated at a gelation temperature of the cellulose derivative or higher.

    摘要翻译： 一种制造透明或不透明的二氧化硅玻璃制品的方法，包括混合二氧化硅细粉和纤维素衍生物并注射模塑该混合物，然后进行脱脂处理和烘烤处理，其特征在于纤维素衍生物是可逆的纤维素衍生物 在选自甲基纤维素，羟丙基甲基纤维素和羟乙基甲基纤维素中的至少一种的水溶液中的热凝胶化; 在制造透明石英玻璃制品时，将纤维素衍生物加入到其凝胶化温度以上加热的水中，冷却后，将所形成的水溶液与二氧化硅细粉混合; 在制造不透明的二氧化硅玻璃制品时，将纤维素衍生物加入到含有二氧化硅粉末的二氧化硅浆料中，并在纤维素衍生物的凝胶化温度以上加热。

    Process for producing silica glass product
    2.
    发明授权
    Process for producing silica glass product 有权
    二氧化硅玻璃制品生产工艺

    公开(公告)号：US07790078B2

    公开(公告)日：2010-09-07

    申请号：US11795567

    申请日：2006-02-09

    申请人： Hiroyuki Watanabe ,  Akira Fujinoki ,  Takayuki Imaizumi ,  Kazuhisa Hayakawa ,  Shingo Niinobe

    发明人： Hiroyuki Watanabe ,  Akira Fujinoki ,  Takayuki Imaizumi ,  Kazuhisa Hayakawa ,  Shingo Niinobe

    IPC分类号： C03B8/00

    CPC分类号： C03B20/00 ,  C03B19/06 ,  C03B19/066

    摘要： A process for producing a transparent or opaque silica glass product including mixing a silica fine powder and a cellulose derivative and injection molding the mixture, followed by degreasing treatment and baking treatment, which is characterized in that the cellulose derivative is a cellulose derivative which causes reversible thermal gelation in an aqueous solution of at least one member selected from methyl cellulose, hydroxypropylmethyl cellulose and hydroxyethylmethyl cellulose; in producing a transparent silica glass product, the cellulose derivative is added in water heated at a gelation temperature thereof or higher, and after cooling, the formed aqueous solution is kneaded with the silica fine powder; and in producing an opaque silica glass product, the cellulose derivative is added in a silica slurry containing a silica powder and heated at a gelation temperature of the cellulose derivative or higher.

    摘要翻译： 一种制造透明或不透明的二氧化硅玻璃制品的方法，包括混合二氧化硅细粉和纤维素衍生物并注射模塑该混合物，然后进行脱脂处理和烘烤处理，其特征在于纤维素衍生物是可逆的纤维素衍生物 在选自甲基纤维素，羟丙基甲基纤维素和羟乙基甲基纤维素中的至少一种的水溶液中的热凝胶化; 在制造透明石英玻璃制品时，将纤维素衍生物加入到其凝胶化温度以上加热的水中，冷却后，将所形成的水溶液与二氧化硅细粉混合; 在制造不透明的二氧化硅玻璃制品时，将纤维素衍生物加入到含有二氧化硅粉末的二氧化硅浆料中，并在纤维素衍生物的凝胶化温度以上加热。

    Process for producing silica glass product
    3.
    发明申请
    Process for producing silica glass product 审中-公开

    公开(公告)号：US20100251770A1

    公开(公告)日：2010-10-07

    申请号：US12802846

    申请日：2010-06-15

    申请人： Hiroyuki Watanabe ,  Akira Fujinoki ,  Takayuki Imaizumi ,  Kazuhisa Hayakawa ,  Shingo Niinobe

    发明人： Hiroyuki Watanabe ,  Akira Fujinoki ,  Takayuki Imaizumi ,  Kazuhisa Hayakawa ,  Shingo Niinobe

    IPC分类号： C03B8/00

    CPC分类号： C03B20/00 ,  C03B19/06 ,  C03B19/066

    摘要： A process for producing a transparent or opaque silica glass product including mixing a silica fine powder and a cellulose derivative and injection molding the mixture, followed by degreasing treatment and baking treatment, which is characterized in that the cellulose derivative is a cellulose derivative which causes reversible thermal gelation in an aqueous solution of at least one member selected from methyl cellulose, hydroxypropylmethyl cellulose and hydroxyethylmethyl cellulose; in producing a transparent silica glass product, the cellulose derivative is added in water heated at a gelation temperature thereof or higher, and after cooling, the formed aqueous solution is kneaded with the silica fine powder; and in producing an opaque silica glass product, the cellulose derivative is added in a silica slurry containing a silica powder and heated at a gelation temperature of the cellulose derivative or higher.

    Water-soluble cellulose ether having improved filtering characteristics and selection method
    6.
    发明授权
    Water-soluble cellulose ether having improved filtering characteristics and selection method 有权
    具有改进的过滤特性和选择方法的水溶性纤维素醚

    公开(公告)号：US06960660B2

    公开(公告)日：2005-11-01

    申请号：US10464550

    申请日：2003-06-19

    申请人： Shingo Niinobe ,  Kazuhisa Hayakawa

    发明人： Shingo Niinobe ,  Kazuhisa Hayakawa

    IPC分类号： A63H33/28 ,  C08B11/10 ,  C08B11/20 ,  C08B11/02 ,  C08B11/08

    CPC分类号： C08B11/20

    摘要： A water-soluble cellulose ether is selected by judging whether the number of undissolved fibers having a size of 16–200 μm is up to 350 fibers/2 ml in a 0.1 wt % aqueous solution of the cellulose ether at 25° C. This water-soluble cellulose ether forms an aqueous solution which can be filtered without clogging and can form a very thin film without defectives.

    摘要翻译： 通过在25℃下，在纤维素醚的0.1重量％水溶液中判断尺寸为16-200μm的未溶解纤维的数量是否高达350纤维/ 2ml来选择水溶性纤维素醚。该水 可溶性纤维素醚形成水溶液，可以过滤而不堵塞，可形成无缺陷的非常薄的膜。