Flame-resistant filaments of fibres - based on pan and brominated polyesters

    公开(公告)号:DE2141334A1

    公开(公告)日:1973-02-22

    申请号:DE2141334

    申请日:1971-08-18

    Applicant: BASF AG

    Abstract: Flame-resistant filaments or fibres are based on acrylonitrile polymers contg. >=85% acrylonitrile, the polymers contg. linear brominated polyesters with the structural unit : in an amt. such that there are 2-5, preF. 2-4, wt.% Br-residues present in the filaments or fibres. X is phenylene, naphthylene, 3,4-dibromo-cyclohexylene, ethylene, propylene, or butylene residue; Y is ethylene, propylene or butylene or Z is S, O, -NH- or CMe2-; X or Y may carry up to 4 Br-residues. Shrink characteristics, thermal stability, breaking strength and colour (whiteness) of the fibres are not affected by the polyesters.

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