Loading patent…
AssigneesDuPont-Mitsui Fluorochemicals Co., Ltd., E.I. duPont de Nemours and Company
InventorsJeong Chang Lee, Noriyuki Suzuki, Shousaku Kondo, Hajime Sato
Estimating the term…
The present invention relates to a heat-meltable fluoropolymer composite composition having excellent thermal conductivity, gas and chemical liquid barrier properties and dynamic properties such as storage modulus which comprises a heat-meltable fluoropolymer fine powder and a layered-compound organized by treatment with tetraphenyl phosphonium ions. The present invention also relates to a heat-meltable fluoropolymer composite composition having similar properties to those mentioned above which is obtained by a process (I) in which a heat-meltable fluoropolymer composite composition is obtained by grinding and mixing a heat-meltable fluoropolymer fine powder and a layered-compound and a process (II) in which such heat-meltable fluoropolymer composite composition thus obtained is melted and mixed under shear stress by means of a melt-mixing extruder.
A process for manufacturing a heat-meltable fluoropolymer composite composition which comprises a step (I) in which a heat-meltable fluoropolymer composite composition is obtained by mixing a heat-meltable fluoropolymer fine powder and a layered-compound by use of a high-speed rotary mixer whose blades or cutter knives have a circumferential velocity of not less than 35 m/sec and a step (II) in which such heat-meltable fluoropolymer composite composition thus obtained is melt-mixed by exerting shear stress within a melt-mixing extruder.
A heat-meltable fluoropolymer composite composition which is obtained by a step (I) in which a heat-meltable fluoropolymer composite composition is obtained by mixing a heat-meltable fluoropolymer fine powder and a layered-compound by use of a high-speed rotary mixer whose blades or cutter knives have a circumferential velocity of not less than 35 m/sec and a step (II) in which such heat-meltable fluoropolymer composite composition thus obtained is melt-mixed by exerting shear stress within a melt-mixing extruder.
Dependencies are inferred from the claim text.