About 5 results
https://drivepatents.com/patents/983574 · 9 Oct 2013
The present invention relates to a porous membrane containing cellulose fibers, wherein the cellulose fibers contain 5% by weight or more of cellulose fibers with a diameter of 1 µm or more, relative to the total weight of the cellulose fibers, the mode d...
https://drivepatents.com/patents/983573 · 9 Oct 2013
The present invention relates to a porous membrane including cellulose fibers, wherein the cellulose fibers are obtained from a mixture of: more than 50% by weight of (1) first raw material cellulose fibers having a surface area determined by congo red col...
https://drivepatents.com/patents/983572 · 9 Oct 2013
The present invention relates to a porous membrane containing cellulose fibers, wherein the cellulose fibers contain 5% by weight or more of cellulose fibers with a diameter of 1 µm or more, relative to the total weight of the cellulose, and the porous me...
https://drivepatents.com/patents/983575 · 9 Oct 2013
The present invention relates to a process for preparing a separator for an electrochemical device, including the steps of: applying a slurry including at least cellulose fibers and a hydrophilic pore former with a boiling point of 180°C or more onto a su...
https://drivepatents.com/patents/983926 · 2 Oct 2013
The present invention relates to a porous membrane including cellulose fibers, wherein the surface area determined by congo red coloring of the re-dispersed cellulose fibers after the cellulose fibers of the porous membrane are re-dispersed in accordance w...