Process for producing hollow water-absorbing polyester filaments

Details Process for producing hollow water-absorbing polyester filaments Process for producing hollow water-absorbing polyester filaments

1982-09-27

1984-11-27

Czaja, Donald

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

By treating occluded solids

264177F, 2642091, 264344, 428389, B29C 2500

Patent

active

044850581

ABSTRACT:
Hollow water-absorbing polyester filaments each having a number of fine caves which are evenly distributed in at least a portion of the filament and through which the hollow is connected to the outside of the filament, are produced (1) by preparing hollow filaments from a blend of a principal polyester component and a cave-forming agent consisting of at least one member selected from:

REFERENCES:
patent: 3956020 (1976-05-01), Weininger et al.
patent: 4316924 (1982-02-01), Minemura et al.
patent: 4336307 (1982-06-01), Shiozaki et al.
patent: 4361617 (1982-11-01), Suzuki et al.
patent: 4371485 (1983-02-01), Mathes et al.

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