| abstract |
Tetrafluoroethylene core - shell polymers of the general formula R 1 O- [CH 2 CH 2 O] n - [R 2 O] m R 3 [ wherein, R 1 is at least 8 carbon atoms, preferably Represents a linear or branched aliphatic hydrocarbon group having 8 to 18 carbon atoms, R2 represents an alkylene having 3 carbon atoms, R3 represents hydrogen, a C1 to C3 alkyl group, or C1 Represents a C3 hydroxyalkyl group, n has a value of 0 to 40, m has a value of 0 to 40, and the sum of n + m is at least 2]. An aqueous dispersion comprising an active agent, wherein the dispersion does not contain a fluorinated emulsifier or contains a fluorinated emulsifier in an amount of less than 50 ppm, based on the weight of the dispersion, and the core-shell The polymer is tetrafluoroethylene Containing an outer shell of Moporima the aqueous dispersion. Further provided are a method of making a dispersion, a coating composition comprising the dispersion, and an article coated with the coating composition. |