FLUOROPOLYMER DISPERSION CONTAINING NO OR SMALL AMOUNT OF LOW-MOLECULAR WEIGHT FLUORINATED SURFACTANT
FIELD: polymer materials. ^ SUBSTANCE: invention deals with aqueous fluoropolymer dispersions containing no low-molecular weight fluorinated surfactant or containing the same in small amounts. Disclosed is, in particular, a fluoropolymer dispersion containing fluoropolymer particles with average siz...
Gespeichert in:
Hauptverfasser: | , , , |
---|---|
Format: | Patent |
Sprache: | eng ; rus |
Schlagworte: | |
Online-Zugang: | Volltext bestellen |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Zusammenfassung: | FIELD: polymer materials. ^ SUBSTANCE: invention deals with aqueous fluoropolymer dispersions containing no low-molecular weight fluorinated surfactant or containing the same in small amounts. Disclosed is, in particular, a fluoropolymer dispersion containing fluoropolymer particles with average size from 10 to 400 nm while dispersion contains no fluorinated surfactant having molecular mass below 1000 g/mole or contains the same in amount no higher than 0.025% based on the summary mass of dispersion solids. Dispersion further contains nonionic and anionic surfactants selected from those having molecular mass at least 1000 g/mole, non-fluorinated anionic surfactants, and mixtures thereof. Also disclosed are a method for obtaining dispersion of fluoropolymer particles and a method for depositing dispersion onto a substrate. ^ EFFECT: reduced viscosity of fluoropolymer dispersions with high content of solids including surfactants as stabilizers. ^ 14 cl, 5 ex |
---|