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AssigneeDaikin Industries, Ltd.
InventorsChie Sawauchi, Nobuhiko Tsuda
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It is an object of the present invention to provide an aqueous fluoropolymer dispersion which will not send out any amine-like odor in spite of its having been brought into contact with an anion exchange resin as well as a method of producing the same. This invention is related to an aqueous fluoropolymer dispersion containing a nitrogen-containing organic base and/or a salt thereof, together with a particle of fluoropolymer dispersed therein wherein said nitrogen-containing organic base and/or the salt thereof amounts, in total, to 0 to 1 ppm of said aqueous fluoropolymer dispersion.
An aqueous fluoropolymer dispersion containing a nitrogen-containing organic base and/or a salt thereof, together with a particle of fluoropolymer dispersed therein
An aqueous fluoropolymer dispersion prepared by subjecting a to-be-treated aqueous fluoropolymer dispersion to contact treatment (T1) comprising contact with an anion exchange resin and subsequent contact with active carbon and/or a cation exchange resin, or by subjecting the to-be-treated dispersion to contact treatment (T2) comprising contact with a mixed bed containing an anion exchange resin as well as active carbon and/or a cation exchange resin.
A method of producing an aqueous fluoropolymer dispersion which comprises subjecting a to-be-treated aqueous fluoropolymer dispersion comprising a particle of fluoropolymer dispersed therein to contact treatment, said contact treatment comprising contact (P) with an anion exchange resin and contact (Q) with active carbon and/or with a cation exchange resin.
Dependencies are inferred from the claim text.