Method for producing pellets, pellets and ion exchange film
AssigneeAGC Inc.
InventorHiromitsu KUSANO
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Abstract
A pellet of a fluorinated polymer having groups convertible to ion exchange groups such that the fluorinated polymer has ion exchange capacity of at least 1.1 milliequivalent/g dry resin upon conversion of the convertible groups to ion exchange groups is provided. The pellet has a visible light transmittance of from 30 to 60% in a light wavelength range of 400 to 700 nm. An ion exchange membrane obtained by melt extrusion of the pellet is also provided.
Claims15
A pellet, comprising:
- a fluorinated polymer comprising convertible groups convertible to ion exchange groups such that the fluorinated polymer has ion exchange capacity of at least 1.1 milliequivalent/g dry resin upon conversion of the convertible groups to ion exchange groups,
- wherein the pellet has a visible light transmittance of from 30 to 60% in a light wavelength range of 400 to 700 nm.
The pellet according to claim 3, wherein the side surfaces comprise grooves perpendicular to the cut surface.
The pellet according to claim 3, wherein the cut surface and side surfaces have a roughened surface obtained from a roughening treatment.
Dependencies are inferred from the claim text.