Monofils and bristles of homopolymers or copolymers of acrylonit

Details Monofils and bristles of homopolymers or copolymers of acrylonit Monofils and bristles of homopolymers or copolymers of acrylonit

1986-02-07

1988-01-12

Schofer, Joseph L.

Stock material or miscellaneous articles

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

Rod, strand, filament or fiber

428364, 428902, 5263293, 526341, 526342, 264182, 2642108, 264342R, 264561, D02G 300, C08F 2044, D01F 618

Patent

active

047191503

ABSTRACT:
Monofils and bristles which comprise at least 90% by weight of acrylonitrile units and have a linear density of more than 2.5 tex possess a relative solution viscosity of 1.7 to 6.0, a tear strength of at least 20 cN/tex and an initial modulus of more than 700 cN/tex.
The manufacturing process is distinguished by a wet stretch of the spun filaments by at least 1:4, drying under tension and a subsequent hot stretch of at least 1:2, the overall stretch being at least 1:8, preferably 1:10 to 1:20.
The monofils and bristles according to the invention are suitable in particular for producing filament-reinforced composite materials.

REFERENCES:
patent: 3878178 (1975-04-01), Guinn et al.
patent: 4001485 (1977-01-01), Patron et al.
patent: 4138461 (1979-02-01), Reinehr et al.
patent: 4140844 (1979-02-01), Lohwasser
patent: 4507257 (1985-03-01), Fester et al.
patent: 4535027 (1985-08-01), Kobashi et al.

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