22.
    发明专利
    未知

    公开(公告)号:DE58900289D1

    公开(公告)日:1991-10-24

    申请号:DE58900289

    申请日:1989-02-23

    Applicant: BASF AG

    Abstract: The invention relates to the use of polyacetals which are obtainable by reacting… a) dialdehydes of the formula… OHC-An-CHO… in which… A is -CH2-, -CH2-CH2-, -CH2-CH2-CH2-, … … n is 0 or 1, with… b) polycarboxylic acids containing at least 2 OH groups and having 4 to 7 C atoms in a molar ratio (a) : (b) of 1 : 0.5 to 1 : 3,… as complexing agents in baths for the chemical deposition of copper, and a process for the chemical deposition of copper.

    23.
    发明专利
    未知

    公开(公告)号:DE3864995D1

    公开(公告)日:1991-10-24

    申请号:DE3864995

    申请日:1988-12-15

    Applicant: BASF AG

    Abstract: Quat. salts of di- or tri-(hydroxyalkyl)amine polycondensates in which the N atoms are 10-99% quaternised with 4-12C alkyl or benzyl (I), and which are soluble in the aq. application bath, are useful as conditioning agents for the pretreatment of non-metallic surfaces ("pre-dip") before activation for subsequent chemical metallisation. N atoms are 30-90% quaternised, and (I) are polycondensates of di- or tr-ehtanolamine pref., the N atoms are 35-80% quaternised with n-octyl or benzyl; concn. of (I) is 0.001-1 wt.%, bath temp. is 10-60 deg.C and application time is 15 secs.-30 mins.

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