Plastic and nonmetallic article shaping or treating: processes – Forming continuous or indefinite length work – Shaping by extrusion
Patent
1978-08-08
1981-03-24
Woo, Jay H.
Plastic and nonmetallic article shaping or treating: processes
Forming continuous or indefinite length work
Shaping by extrusion
264206, 264211, D01F 618
Patent
active
042579996
ABSTRACT:
The invention relates to a process for the production of hydrophilic filaments or fibres having a sheath/core structure, a porosity of at least 10% and a water retention capacity of at least 10% and having a fibre swelling factor which is lower than the water retention capacity. The process is carried out by spinning a solution of a fibre forming synthetic polymer, especially an acrylonitrile polymer by the dry jet wet-spinning method wherein immediately on leaving the spinning jet and prior to coagulation in the precipitation bath the filaments or fibres are contacted with steam or with the vapor of another liquid which coagulates the filaments.
REFERENCES:
patent: 2032606 (1936-03-01), Whitehead
patent: 2303340 (1942-12-01), Dreyfus
patent: 2303528 (1942-12-01), Dreyfus
patent: 2367493 (1945-01-01), Fordyce et al.
patent: 2425782 (1947-08-01), Bludworth et al.
patent: 2688010 (1954-08-01), Chaney
patent: 2876494 (1959-03-01), Janssen et al.
patent: 3415922 (1968-12-01), Carter et al.
patent: 3842151 (1974-10-01), Stoy et al.
Druschke Frank
Reinehr Ulrich
Bayer Aktiengesellschaft
Woo Jay H.
LandOfFree
Process for the production of hydrophilic filaments and fibres b does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for the production of hydrophilic filaments and fibres b, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the production of hydrophilic filaments and fibres b will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2408038