Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1976-12-17
1979-04-17
Anderson, Harold D.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
260 4227, 260827, 260900, 526 1, 526250, 526253, 526254, C08L 2718
Patent
active
041500130
ABSTRACT:
Compositions which when coated onto wire as insulation have good resistance to deterioration under low voltage AC stress in hot water are provided which comprise a melt-processible copolymer consisting essentially of units of tetrafluoroethylene and at least one comonomer that is a selected ethylenically unsaturated fluorinated monomer, and an organo-polysiloxane that is substantially stable and nonvolatile at the temperature of melt-processing for the copolymer used, is substantially incompatible with the copolymer, and is dispersed in the copolymer. The compositions are prepared by employing techniques which provide sufficient transporting pressure to transport the components into a mixing zone, and which provide shearing action sufficient to cause the organopolysiloxane to disperse.
REFERENCES:
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patent: 3062764 (1962-11-01), Osdal
patent: 3150207 (1964-09-01), Gore
patent: 3207825 (1965-09-01), Tully
patent: 3325434 (1967-06-01), Tully
patent: 3391221 (1968-07-01), Gore
patent: 3415900 (1968-10-01), Robb
patent: 3538028 (1970-11-01), Morgan
Anderson Harold D.
E. I. Du Pont de Nemours and Company
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