POLYTETRAFLUOROETHYLENE AQUEOUS DISPERSION AND PRODUCT THEREOF Russian patent published in 2011 - IPC C08L27/18

Abstract RU 2419642 C2

FIELD: chemistry.

SUBSTANCE: invention relates to an aqueous polytetrafluoroethylene (PTFE) dispersion and a product thereof. The aqueous dispersion contains finely dispersed PTFE particles, and a fluorinated emulsifying agent of formula: XCF₂CF₂(O)_mCF₂CF₂OCF₂COOA, where X is a hydrogen atom or a fluorine atom, A is a hydrogen atom, alkali metal or NH₄ and m is equal to 0 or 1, and a nonionic surfactant.

EFFECT: polytetrafluoroethylene aqueous dispersion and product thereof almost does not contain ammonium perfluorooctanoate and has excellent mechanical stability, wettability, permeability and coating quality.

5 cl, 4 tbl, 7 ex

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RU 2 419 642 C2

Authors

Khosikava Dzun

Khiguti Sinia

Matsuoka Jasukhiko

Jamagisi Nobujuki

Dates

2011-05-27—Published

2006-10-19—Filed