22.
    发明专利
    未知

    公开(公告)号:DE3533250C1

    公开(公告)日:1986-12-04

    申请号:DE3533250

    申请日:1985-09-18

    Applicant: HOECHST AG

    Abstract: A carrier-supported catalyst is prepared by applying a noble metal on to a ceramic honeycomb structure coated with an aluminum oxide layer. To this end, the ceramic honeycomb structure is impregnated with an aqueous solution containing nitrilotriacetic acid or ethylenediaminotetraacetic acid, ammonia and at least one noble metal compound.

    29.
    发明专利
    未知

    公开(公告)号:FI55215B

    公开(公告)日:1979-02-28

    申请号:FI239972

    申请日:1972-08-31

    Applicant: HOECHST AG

    Abstract: Water-soluble salts of acid carboxylic acid esters of bivalent aliphatic or olefinically unsaturated carboxylic acids or hydroxycarboxylic acids and at least trihydric aliphatic alcohols are used as builders for detergent and cleansing agents. Each hydroxylic group of the alcohol or optionally of the carboxylic acid has a carboxylic acid-molecule attached thereto.

    30.
    发明专利
    未知

    公开(公告)号:NO139226B

    公开(公告)日:1978-10-16

    申请号:NO334872

    申请日:1972-09-19

    Applicant: HOECHST AG

    Abstract: Water-soluble salts of acid carboxylic acid esters of bivalent aliphatic or olefinically unsaturated carboxylic acids or hydroxycarboxylic acids and at least trihydric aliphatic alcohols are used as builders for detergent and cleansing agents. Each hydroxylic group of the alcohol or optionally of the carboxylic acid has a carboxylic acid-molecule attached thereto.

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