公开(公告)号：US5762841A

公开(公告)日：1998-06-09

申请号：US604623

申请日：1996-02-21

Applicant: Shunzo Shimai ,  Koichi Imura ,  Kenichi Okamoto ,  Koichi Shiraishi ,  Kuniko Ando

Inventor： Shunzo Shimai ,  Koichi Imura ,  Kenichi Okamoto ,  Koichi Shiraishi ,  Kuniko Ando

IPC: C04B38/00 ,  C04B38/06 ,  C04B38/10

CPC classification number: C04B38/007 ,  C04B38/0615 ,  C04B38/10 ,  C04B2111/00405

Abstract: A ceramic porous body is constituted of ceramic particles which have a substantially continuous, monotonic size distribution in the thickness direction of the porous body.

Abstract translation: 陶瓷多孔体由在多孔体的厚度方向上具有基本上连续的单调尺寸分布的陶瓷颗粒构成。

公开(公告)号：US5089134A

公开(公告)日：1992-02-18

申请号：US633624

申请日：1990-12-26

Applicant: Kuniko Ando ,  Koichi Shiraishi ,  Masaru Shimbo ,  Shunzo Shimai

Inventor： Kuniko Ando ,  Koichi Shiraishi ,  Masaru Shimbo ,  Shunzo Shimai

IPC: B01D29/37 ,  B01D39/20

CPC classification number: B01D39/201 ,  Y10S264/48 ,  Y10T428/249969 ,  Y10T428/252 ,  Y10T428/26

Abstract: A silica glass filter comprises a porous support body composed of amorphous silica particles as a porous sintered body and having a purity of 99.9% or more and containing 150 ppm or less in total of impurities including alkali, alkali metal, heavy metal and/or elements of III B group, and a filtration layer formed on the support body. The filtration layer is composed of amorphous silica particles as a porous sintered body in a fine mode and has substantially the same purity as that of the support body.

Abstract translation: 二氧化硅玻璃过滤器包括由无定形二氧化硅颗粒作为多孔烧结体构成的多孔载体，其纯度为99.9％以上，含有总计为150ppm以下的杂质，包括碱金属，碱金属，重金属和/或元素 的IIIB族，以及形成在所述支撑体上的过滤层。 过滤层由精细模式的多孔质烧结体的无定形二氧化硅粒子构成，并且与支撑体的纯度基本相同。