发明名称 |
CHARGED POROUS POLYMERIC MEMBRANE WITH HIGH VOID VOLUME |
摘要 |
Membranes comprising a single layer having a first microporous surface; a second microporous surface; and, a porous bulk between the first microporous surface and the second microporous surface, wherein the bulk comprises a first set of pores having outer rims, prepared by removing introduced dissolvable silica nanoparticles, the first set of pores having a first controlled pore size, and a second set of pores connecting the outer rims of the first set of pores, the second set of pores having a second controlled pore size, and a polymer matrix supporting the first set of pores, wherein the first controlled pore size is greater than the second controlled pore size, and wherein the first and/or second microporous surface comprises a neutrally charged, a negatively charged, or a positively charged, surface; filters including the membranes, and methods of making and using the membranes, are disclosed. |
申请公布号 |
US2015246323(A1) |
申请公布日期 |
2015.09.03 |
申请号 |
US201414193843 |
申请日期 |
2014.02.28 |
申请人 |
Pall Corporation |
发明人 |
SINGH Amarnauth;DAVID Yolando;HARTON Shane Edward |
分类号 |
B01D69/06;B01D63/08;B01D61/00 |
主分类号 |
B01D69/06 |
代理机构 |
|
代理人 |
|
主权项 |
1. A microporous membrane comprising a single layer having
(a) a first microporous surface; (b) a second microporous surface; and, (c) a first porous bulk between the first microporous surface and the second microporous surface, wherein the bulk comprises a first set of pores having outer rims, prepared by removing introduced dissolvable silica nanoparticles, the first set of pores having a first controlled pore size, and a second set of pores connecting the outer rims of the first set of pores, the second set of pores having a second controlled pore size, and a polymer matrix supporting the first set of pores, wherein the first controlled pore size is greater than the second controlled pore size, and wherein the first and/or second microporous surface comprises a neutrally charged, a negatively charged, or a positively charged, surface. |
地址 |
Port Washington NY US |