Title: Stable dispersion of high molecular weight polytetrafluoroethylene containing no additives and a process for the production thereof

Abstract: A stable aqueous dispersion of unexpectedly high molecular weight polytetrafluoroethylene, containing no additives such as dispersing and emulsifying agents, is prepared by radiation-polymerizating tetrafluoroethylene monomer in an aqueous phase in the absence of dispersing or emulsifying agent.

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Inventors: Machi, Sueo (Takasaki, JA)
Suwa, Takeshi (Takasaki, JA)
Takehisa, Masaaki (Takasaki, JA)
Seguchi, Tadao (Takasaki, JA)

Application Number: 444768
Filing Date: 1974-02-22
Publication_date: 1976-03-02
Assignee: Japan Atomic Energy Research Institute (Tokyo, JA)
Primary Class(es): 522/80 522/84, 522/187, 524/805
Other Classes:
US Patent Ref:

2559752	Jul, 1951	Berry	204/159.
3704285	Nov, 1972	Porter	260/92.
3707519	Dec, 1972	Hahn	260/92.
3723270	Mar, 1973	Tabata et al.	260/92.

Other Refs:
Primary Examiner: Rzucidlo, Eugene C.
Assistant Examiner:
Attorney: Browdy and Neimark