Process for hygroscopic, fibres and filaments of synthetic polym

Details Process for hygroscopic, fibres and filaments of synthetic polym Process for hygroscopic, fibres and filaments of synthetic polym

1980-01-31

1982-06-22

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

By treating occluded solids

264206, 264211, 428376, B29H 720

Patent

active

043362141

ABSTRACT:
The invention relates to hygroscopic filaments and fibres of synthetic high polymers. The improved hygroscopicity compared with known synthetic fibres is due to the fact, that in a conventional dry-spun process a liquid is added to the spinning solvent which liquid has a higher boiling point than the spinning solvent used, which liquid is readily miscible both with the spinning solvent and water and which represents a non-solvent for the polymer to be spun.

REFERENCES:
patent: 2075888 (1937-04-01), Dreyfus
patent: 2376934 (1945-05-01), Morgan

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