Process for melt spinning acrylonitrile polymer hydrates

Verfahren zum Schmelzspinnen hydratierter Acrylnitrilpolymerisate

Procédé pour le filage au fondu de polymères hydratés d'acrylonitrile

Abstract

The melt spinning of acrylonitrile polymer hydrates is improved when the polymer used contains at least 91 % by weight acrylonitrile units and up to 9 % by weight of one or more copolymeric units and has an intrinsic viscosity of 0.6-2, 7-23 µ eq./g. enolizable groups after mild acid treatment, 15-70 µ eq./g thioether ends derived from a water insoluble mercaptan and less than 3 µ eq./g. oxidizable hydrolysis fragments.

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Patent Citations (2)

    Publication numberPublication dateAssigneeTitle
    US-3984601-AOctober 05, 1976E. I. Du Pont De Nemours And CompanyAcrylonitrile polymer filaments
    US-4094948-AJune 13, 1978E. I. Du Pont De Nemours And CompanyImproved acrylonitrile polymer spinning process

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Cited By (2)

    Publication numberPublication dateAssigneeTitle
    EP-0897933-A1February 24, 1999Bayer AgVerfahren zur Herstellung von teilhydrierten Acrylnitril-Butadien-Kautschuken (HNBR) unter on line Anwendung der Raman-Spektroskopie
    US-6307624-B1October 23, 2001Bayer AgProcess for the preparation of partially hydrogenated acrylonitrile-butadiene rubbers (HNBR) with on-line application of Raman spectroscopy