Manufacture of monofilaments

Details Manufacture of monofilaments Manufacture of monofilaments

1974-08-14

1976-04-06

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Shaping by extrusion

264210F, 264349, D01D 508

Patent

active

039490432

ABSTRACT:
An improved process for the manufacture of virtually bubble-free monofilaments of polyhexamethylene adipamide and having a thickness of more than 0.5 mm, wherein polyhexamethylene adipamide containing from 0.05 to 2% by weight of polystyrene finely dispersed therein is passed in the molten state through a sand filter having a particle size between 100 and 1,500 .mu.m and is immediately thereafter melt-spun into a cooling bath, followed by drawing.

REFERENCES:
patent: 3330899 (1967-07-01), Fukushima et al.
patent: 3447308 (1969-06-01), Foukijn et al.
patent: 3709971 (1973-01-01), Shimoda et al.

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