Granulated powder of low-molecular polytetrafluoro-ethylene and powder of low-molecular polytetrafluoro-ethylene and processes for producing both
AssigneeDaikin Industries, Ltd.
InventorsMasayuki Tsuji, Yasuhiko Sawada
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Abstract
This invention provides a granulated powder of low-molecular-weight polytetrafluoroethylene reduced in the possibility of the powder being blown up or adhering to hoppers, a low-molecular-weight polytetrafluoroethylene powder obtainable by suspension polymerization, and methods of producing these. The present invention provides a low-molecular-weight polytetrafluoroethylene-based granulated powder which is obtained by a granulation treatment of a low-molecular-weight polytetrafluoroethylene particle comprising a low-molecular-weight polytetrafluoroethylene having a number average molecular weight of not higher than 600000.
Claims4
A low-molecular-weight polytetrafluoroethylene-based granulated powder
- which is obtained by a granulation treatment of a low-molecular-weight polytetrafluoroethylene particle consisting essentially of a low-molecular-weight polytetrafluoroethylene having a number average molecular weight of not higher than 600000,
- which granulated powder has an apparent density of not less than 0.401 g/cm3 and an average grain diameter of not less than 185 μm.
Dependencies are inferred from the claim text.