发明名称 |
WATER PROCESSING FILTER AND MANUFACTURING METHOD THEREFOR |
摘要 |
A water-processing filter having a high dimensional accuracy and an improved filterability (such as a capability to remove turbidity components) is provided. The water-processing filter comprises (A) a hollow cylindrical filter which comprises (a1) a granular activated carbon having a median particle size of 30 to 80 μm and (a2) a fibrillated fibrous binder. The cylindrical filter (A) has an upstream outer surface having an arithmetical mean deviation of a waviness profile adjusted to not more than 30 μm and an arithmetical mean deviation of a primary profile adjusted to 35 to 45 μm. The cylindrical filter (A) may have a downstream inner surface having an arithmetical mean deviation of a waviness profile of not more than 30 μm and an arithmetical mean deviation of a primary profile of 35 to 45 μm. The cylindrical filter (A) may have a grounded outer surface. In a hollow space of the cylindrical filter (A), (B) a cylindrical filter comprising (b1) a granular activated carbon having a median particle size of 30 to 80 μm and (b2) a granular binder may be disposed. |
申请公布号 |
US2015266751(A1) |
申请公布日期 |
2015.09.24 |
申请号 |
US201314435924 |
申请日期 |
2013.10.17 |
申请人 |
KURARAY CHEMICAL CO., LTD. |
发明人 |
Arita Satoru;Ishimura Shizuo;Hanamoto Tetsuya |
分类号 |
C02F1/28;B01D24/00;B01D24/20 |
主分类号 |
C02F1/28 |
代理机构 |
|
代理人 |
|
主权项 |
1. A water-processing filter comprising (A) a hollow cylindrical filter which comprises (a1) a granular activated carbon having a median particle size of 30 to 80 μm and (a2) a fibrillated fibrous binder, wherein the cylindrical filter (A) has an upstream outer surface having an arithmetical mean deviation of a waviness profile of not more than 30 μm and an arithmetical mean deviation of a primary profile of 35 to 45 μm. |
地址 |
Okayama JP |