Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or... – Process or means for producing – recycling – or treating...
Reexamination Certificate
2011-07-05
2011-07-05
Wu, David (Department: 1762)
Chemistry: electrical current producing apparatus, product, and
Fuel cell, subcombination thereof, or method of making or...
Process or means for producing, recycling, or treating...
C429S492000, C524S001000, C210S650000, C210S652000
Reexamination Certificate
active
07972734
ABSTRACT:
A process for producing a polymer electrolyte emulsion having the following steps (1) and (2) is provided. Step (1): a step of dissolving a polymer electrolyte in a solvent comprising a good solvent for the polymer electrolyte to prepare a polymer electrolyte solution having a polymer electrolyte concentration of 0.1 to 10% by weight. Step (2): a step of mixing the polymer electrolyte solution 10 obtained in the step (1), and a poor solvent for the polymer electrolyte at a ratio of 4 to 99 parts by weight of the poor solvent based on 1 part by weight of the polymer electrolyte solution. In addition, a process for producing a polymer 15 electrolyte emulsion comprising separating a polymer electrolyte dispersion in which a polymer electrolyte particle is dispersed in a dispersing medium, with a membrane is provided.
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Kurita Hiroyuki
Kuroda Ryuma
Masui Kentaro
Saito Shin
Foley & Lardner LLP
Nguyen Vu A
Sumitomo Chemical Company Limited
Wu David
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