10.
    发明专利
    未知

    公开(公告)号:DK467775A

    公开(公告)日:1976-04-20

    申请号:DK467775

    申请日:1975-10-17

    Applicant: HOECHST AG

    Abstract: A process for the flameproofing of fiber material, which comprises applying (meth-)acrylic acid-alkyl-esters of the general formula I, in which n and m are 0 or 1 and (n+m) are 0 or 1, and R1 stands for a saturated or unsaturated aliphatic hydrocarbon radical having from 1 to 8, preferably from 1 to 4 carbon atoms, which radical may also be substituted, preferably mono-substituted, by chlorine, bromine, the nitrile group, or the radicals -OR4 or -COOR4, R2 has the same meaning as R1 and - for n= 0 and m= 1 - may also be a group of the formula Ia or Ib, Z, Z1, Z2 represent straight-chain or branched (C1-C3)-alkylene radicals which may also be substituted, preferably mono-substituted, by chlorine, bromine or the hydroxy group, X stands for a hydrogen, a chlorine or a bromine atom, a hydroxy or a methyl group, R3 represents a hydrogen atom or a methyl group, and R4 is a hydrogen atom or an alkyl group having from 1 to 8 carbon atoms, and R5 is a hydrogen atom, the methyl or the chloromethyl group, onto the fiber material, the said (meth-)acrylic acid-alkyl-esters being dissolved in an inert solvent, and subjecting the latter substances to a polymerization by using radicals.

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