Positively charged aqueous dispersions of polytetrafluoroethylen

Details Positively charged aqueous dispersions of polytetrafluoroethylen Positively charged aqueous dispersions of polytetrafluoroethylen

1974-09-11

1976-07-06

Anderson, Harold D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 296MN, 428421, C08L 2718

Patent

active

039680690

ABSTRACT:
This invention relates to aqueous dispersions of positively charged polytetrafluoroethylene.
This inventon also relates to a process for preparing aqueous dispersions of positively charged polytetrafluoroethylene which comprises adding an aqueous dispersion of negatively charged polytetrafluoroethylene containing an anionic emulsifier to an aqueous solution of a cationic emulsifier kept under light agitation while maintaining a ratio of the molar concentration of cationic emulsifier to that of the anionic emulsifier greater than 1:1.

REFERENCES:
patent: 2559752 (1951-07-01), Berry
patent: 2891921 (1959-06-01), Kumnick et al.
patent: 3037953 (1962-06-01), Marks et al.
patent: 3301807 (1967-01-01), Hoashi

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