公开(公告)号：DE4119341A1

公开(公告)日：1992-12-17

申请号：DE4119341

申请日：1991-06-12

Applicant: BASF AG

Inventor： HAHN ERWIN DR ,  DUNG BERNHARD DR ,  BURKHART BERND DR ,  TSCHANG CHUNG-JI DR

IPC: C25D3/22 ,  C25D3/56

Abstract: The invention relates to the production of bright zinc-plated or zinc-alloy-plated shaped parts by the electrolytic desposition or zinc or a zinc alloy from an acidic aqueous galvanic bath containing as its essential components one or more zinc salts and optionally salts of other alloy metals, one or more conducting salts, one or more surface-active agents and one or more brighteners. Used as brighteners are compounds of the formula (I), in which R is a C1-C8 alkoxy, phenoxy, benzyloxy, amino, C1-C6 alkylamino or di(C1-C6) alkylamino group; R is a C1-C4 alkyl, phenyl or benzyl group or one of the groups given for R ; Ar is a phenyl or naphthyl group which may be substituted by one to three C1-C4 alkyl or C1-C4 alkoxy groups.

公开(公告)号：DE3830696A1

公开(公告)日：1990-03-29

申请号：DE3830696

申请日：1988-09-09

Applicant: BASF AG

Inventor： DUNG BERNHARD DR ,  HOUBEN JOCHEN DR ,  OFTRING ALFRED DR

IPC: C07C303/32 ,  C07C309/20

Abstract: Preparation of aqueous solutions of alkali metal salts or of the ammonium salt of propyne-3-sulphonic acid by reaction of propargyl chloride with an aqueous solution of an alkali metal or ammonium sulphite, hydrogen sulphite and/or disulphite by carrying out the reaction in the presence of 1 to 100% by weight, relative to the amount of the aqueous phase, of one or more organic liquids which are water-immiscible or virtually water-immiscible, insensitive to hydrolysis and inert to propargyl chloride and the alkali metal or ammonium salts of sulphurous acid or their condensation products, or adding the organic liquid after the reaction and subsequently separating off the organic phase from the aqueous phase.

公开(公告)号：DE4014978A1

公开(公告)日：1991-11-14

申请号：DE4014978

申请日：1990-05-10

Applicant: BASF AG

Inventor： TRIESELT WOLFGANG DR ,  DUNG BERNHARD DR ,  MUELLER REINHARD DR ,  OFTRING ALFRED DR ,  PERNER JOHANNES DR ,  HOTZ JOHANN ,  BOHN MICHAEL DR

IPC: C11D7/54 ,  C07H13/04 ,  C11D3/39 ,  C11D11/00 ,  C11D17/06

公开(公告)号：DE3938526A1

公开(公告)日：1991-05-23

申请号：DE3938526

申请日：1989-11-21

Applicant: BASF AG

Inventor： DUNG BERNHARD DR ,  TRIESELT WOLFGANG DR ,  HAHN ERWIN DR ,  PERNER JOHANNES DR ,  OFTRING ALFRED DR

IPC: C11D3/28 ,  C07D265/22 ,  C11D3/39 ,  C11D3/42

Abstract: PCT No. PCT/EP90/01897 Sec. 371 Date Mar. 3, 1992 Sec. 102(e) Date Mar. 3, 1992 PCT Filed Nov. 13, 1990 PCT Pub. No. WO91/08279 PCT Pub. Date Jun. 13, 1991.Heterocyclic compounds which are useful as bleach activators or optical brighteners in washing and cleaning agents have the formula (* CHEMICAL STRUCTURE *) I where the variables have the following meanings: X is O, S or the group N-R3, where R3 is hydrogen, C1-C25-alkyll C1-C25-acyl or an aryl group of up to 12 carbon atoms, Y is CH or N, R1 for X=S or N-R3 is hydrogen, a C1-C25-alkyl or C2-C25-alkenyl group or a phenyl radical which may be additionally substituted by one or two C1-C4-alkyl, C1-C4-alkoxy, hydroxyl, carboxyl, sulfo, amino, C1-C4-acylamino, nitro or cyano groups or chlorine or bromine atoms, which substituents, if there are two of them, may be identical or different, R1 for X=O is phenyl, o-, m- or p-tolyl, p-chlorophenyl, m-nitrophenyl, m-methoxyphenyl or m-methylsulfonylphenyl, R2 for X=S or N-R3 is hydrogen, a C1-C4-alkyl, C1-C4-alkoxy, hydroxyl, carboxyl, sulfo, amino or C1-C4-acylamino group or a chlorine or bromine atom, and R2 for X=O is hydrogen.