Composite particles and ion exchange membrane
AssigneeAGC Inc.
InventorsYasushi Yamaki, Hiromitsu Kusano
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Abstract
The present invention provides composite particles which are capable of forming an ion exchange membrane with fewer defects and an ion exchange membrane. The composite particles according to the present invention comprise pellets comprising a fluorinated polymer having groups convertible to ion exchange groups, and a powder held on the pellet surface which comprises a polymer, wherein the powder has an average particle diameter of at least 1 μm and at most 1,000 μm, and the ratio of the average particle diameter of the pellets to the average particle diameter of the powder is 2 to 4,500.
Claims20
Composite particles, comprising:
- pellets comprising a fluorinated polymer having groups convertible to ion exchange groups;
- and
- a powder comprising a polymer and held on a surface of the pellets comprises a polymer,
- wherein the polymer of the powder comprises units based on a fluoroolefin,
- the powder has an average particle diameter of larger than 1 μm and at most 1,000 μm, and
- a ratio of an average particle diameter of the pellets to an average particle diameter of the powder is 2 to 4,500.
Composite particles, comprising:
- pellets comprising a fluorinated polymer having groups convertible to ion exchange groups;
- and
- a powder comprising a polymer and held on a surface of the pellets,
- wherein the powder has an average particle diameter of larger than 1 μm and at most 1,000 μm,
- a ratio of an average particle diameter of the pellets to an average particle diameter of the powder is 2 to 4.500, and
- both the fluorinated polymer and the polymer of the powder comprise units having a group convertible to an ion exchange group.
Dependencies are inferred from the claim text.