METHOD OF PREPARING MOLDING GRANULAR POWDER BASED ON POLYTETRAFLUOROETHYLENE Russian patent published in 2000 - IPC

Abstract RU 2159781 C2

FIELD: chemical industry. SUBSTANCE: described is method of preparing molding granular powder by agglomeration of highly dispersive powder at least from on polytetrafluoroethylene or modified polytetrafluoroethylene, and optionally filler, in aqueous medium containing surfactant followed by drying of agglomerate. Surfactant is trialkyl aminooxide in amount of 0.1-2 % by weight polytetrafluoroethylene. Amino acids as used in the invention are much more volatile then oxiethylates that have been used up to the present time. This makes it possible to simplify method of removing them from molded products at lower temperatures and to improve quality thereof. EFFECT: more efficient preparation method. 3 cl, 3 ex

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RU 2 159 781 C2

Authors

Til'Man Tsipplis

Dates

2000-11-27Published

1995-10-19Filed