11.
    发明专利
    未知

    公开(公告)号:DE59305160D1

    公开(公告)日:1997-02-27

    申请号:DE59305160

    申请日:1993-05-12

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP93/01171 Sec. 371 Date Oct. 21, 1994 Sec. 102(e) Date Oct. 21, 1994 PCT Filed May 12, 1993 PCT Pub. No. WO93/23363 PCT Pub. Date Nov. 25, 1993.The invention relates to a process for preparing beta -alaninediacetic acid (Ia) or its alkali metal or ammonium salts (Ib) which comprises reacting iminodiacetic acid with acrylonitrile or C1-C4-alkyl acrylates in weakly acid to weakly basic aqueous medium and subsequently hydrolyzing the nitrile or ester moiety to the acid or a salt. The products prepared according to the invention can be used, in particular, to form complexes.

    14.
    发明专利
    未知

    公开(公告)号:DE59404476D1

    公开(公告)日:1997-12-04

    申请号:DE59404476

    申请日:1994-08-09

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP94/02635 Sec. 371 Date Sep. 7, 1995 Sec. 102(e) Date Sep. 7, 1995 PCT Filed Aug. 9, 1994 PCT Pub. No. WO95/05624 PCT Pub. Date Feb. 23, 1995Electrostatic toners contain a polymeric binder and, as a charge stabilizer, a compound of the formula where M(+) is one equivalent of a cation and R is unsubstituted or substituted C1-C18-alkyl or unsubstituted or substituted phenyl.

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