FIELD: chemistry.
SUBSTANCE: aqueous dispersion contains 20-70 wt % microparticles of a fluoropolymer, 1-12 wt % nonionic surfactant based on the weight of the fluoropolymer, said nonionic surfactant having the formula: R1-O-A-X, where R1 is a C6-18 alkyl group, O is an oxygen atom, A is a polyoxyalkylene group containing 1-3 oxybutylene groups and 5-20 oxyethylene groups, and X is a hydrogen atom or a methyl group, and the at most 0.2 wt % fluorinated surfactant, based on the weight of the fluoropolymer.
EFFECT: obtaining an aqueous dispersion of a fluoropolymer which is not coloured after thermal treatment, with low viscosity at high temperatures and which does not crack during coating.
6 cl, 12 ex, 3 tbl
| Title |
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