About 60 results
https://drivepatents.com/patents/985770 · 13 Mar 2013
Described is a method for producing a polymer electrolyte form article composed of an ionic group-containing block copolymer, having a block (B1) containing an ionic group and a block (B2) not containing an ionic group, in which a ratio W1/W2 of weight W1 ...
https://drivepatents.com/patents/995538 · 5 Dec 2012
The invention provides a porous film comprising aromatic polyamide as a constituent component that has high heat resistance, high air permeability and high affinity to electrolytes. It is a porous aromatic polyamide film comprising aromatic polyamide and a...
https://drivepatents.com/patents/996490 · 31 Oct 2012
A process for producing carbon microparticles, characterised in that synthetic resin microparticles, metal-containing synthetic resin microparticles or child-particle-containing synthetic resin microparticles are subjected to carbonization baking, wherein ...
https://drivepatents.com/patents/998293 · 19 Sep 2012
The porous film of the present invention has an absorbing height of an electrolysis solution of 10 to 60 mm in at least one direction of the film's machine direction or transverse direction, wherein the absorbing height being measured after 30 minutes from...
https://drivepatents.com/patents/999435 · 15 Aug 2012
The porous polypropylene film roll of the present invention is a porous polypropylene film roll of which a porous polypropylene film comprising a polypropylene resin and having the average value of the porosities, µave, of 45 to 90% is wound around a core...
https://drivepatents.com/patents/1001076 · 27 Jun 2012
The invention provides a water vapor permeable membrane comprising a dense layer and a support layer that are adjacent to each other, wherein said dense layer contains voids with a void length of 0.1 µm or less and said layer has a thickness of 0.1 µm or...
https://drivepatents.com/patents/1001589 · 13 Jun 2012
The present invention relates to a method for producing a polymer electrolyte molded article, which comprises forming a polymer electrolyte precursor having a protective group and an ionic group, and deprotecting at least a portion of protective groups con...
https://drivepatents.com/patents/1005013 · 29 Feb 2012
It is an object of the present invention to provide a membrane electrode assembly formed by sandwiching an electrolyte membrane between a pair of electrodes, wherein the membrane electrode assembly has a layer (A) having a substantially different phase dif...
https://drivepatents.com/patents/1005934 · 25 Jan 2012
This invention is a porous polypropylene film, in which the number of such portions where the quantity of light transmitted through each portion is not smaller than 5 times the average quantity of light transmitted through the film is 0.5 portion or less p...
https://drivepatents.com/patents/1008308 · 26 Oct 2011
Disclosed is a method for producing a polymer electrolyte membrane, which comprises the steps of: removing a part of a salt component produced during polycondensation from a polymerization solution of a polymer electrolyte having a density of an ionic grou...