Hydrophilic filaments and fibres of polycarbonates with a high s

Details Hydrophilic filaments and fibres of polycarbonates with a high s Hydrophilic filaments and fibres of polycarbonates with a high s

1979-12-20

1981-05-05

Bell, James J.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Rod, strand, filament or fiber

264205, 428392, 428397, 428412, D02G 300

Patent

active

042659710

ABSTRACT:
Dry-spun hydrophilic core-jacket filaments and fibres of polycarbonates having a porosity and a water retention capacity of at least 10%, a mercury density of less than 1.0 g/cc, a strength of at least 1.5 cN/dtex and a second order transition temperature of at least 125.degree. C. and a method for producing said filament and fibres by a dry-spinning process, wherein, immediately on leaving the spinnerette but before solidifying, the filaments are brought into contact with steam.

REFERENCES:
patent: 3385814 (1968-05-01), Falkai et al.
patent: 3454526 (1969-07-01), Rellensmann
patent: 3574814 (1971-04-01), Falkai et al.
patent: 3914354 (1975-10-01), Ueki et al.
patent: 4185059 (1980-01-01), Reinehr

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