7.
    发明专利
    未知

    公开(公告)号:DE1769865A1

    公开(公告)日:1971-10-14

    申请号:DE1769865

    申请日:1968-07-27

    Applicant: BASF AG

    Abstract: Durable shaping of keratinous fibrous materials by impregnation with solutions or dispersions of compounds which in the betaine form have the formula R1R4R5N -CHR2-CHR3-O-SO2 wherein R1 is an unsubstituted or substituted hydrocarbon radical, R2 and R3 each denotes a hydrogen atom or a lower alkyl radical, and R4 and R5 each denotes a hydrogen atom or an unsubstituted or substituted hydrocarbon radical and heating with steam at 100 DEG to 150 DEG C while shaping; fibrous materials thus treated.

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