Filler-containing acrylic and modacrylic fibres and a process fo

Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Rod – strand – filament or fiber

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428359, 428364, 428391, 428394, 428400, 428447, D02G 300

Patent

active

046439463

ABSTRACT:
Silica-containing acrylic and modacrylic fibres are obtained without spinning defects in that an aqueous silica sol is reacted with a silane and with a polar organic solvent, the sequence in which the two agents are added being optional, the water is distilled off in a vacuum at a temperature of at most 60.degree. C., the thread-forming polymer is then added in a quantity which is sufficient to form a spinnable solution and the solution is spun.

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patent: 3015873 (1962-01-01), Dietzsch et al.
patent: 3493424 (1970-02-01), Mohrlok et al.
patent: 3812004 (1974-05-01), Chinai et al.
patent: 3929718 (1975-12-01), Kratel et al.
patent: 3998988 (1976-12-01), Shimomai et al.
patent: 4331732 (1982-05-01), Palethorpe

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