公开(公告)号：DE3744592C2

公开(公告)日：1996-04-18

申请号：DE3744592

申请日：1987-12-31

Applicant: BASF AG

Inventor： STOECKIGT DIETER ,  WINKLER EKHARD DR

IPC: C11D3/37 ,  C08F22/06 ,  C11D1/72 ,  C11D3/04

公开(公告)号：ES2061461T3

公开(公告)日：1994-12-16

申请号：ES87113592

申请日：1987-09-17

Applicant: BASF AG

Inventor： DENZINGER WALTER ,  HARTMANN HEINRICH DR ,  GOECKEL ULRICH DR ,  RICHTER FELIX DR ,  WINKLER EKHARD DR ,  RAUBENHEIMER HANS-JURGEN

IPC: C08F4/28 ,  C02F5/00 ,  C02F5/08 ,  C02F5/10 ,  C08F2/06 ,  C08F4/32 ,  C08F4/34 ,  C08F8/12 ,  C08F20/02 ,  C08F22/02 ,  C08F22/06 ,  C08F122/02

Abstract: A process for the preparation of polymaleic acid by polymerizing maleic anhydride in an aromatic hydrocarbon at from 60 DEG to 200 DEG C., using from 1 to 20% by weight, based on maleic anhydride, of peroxyesters derived from saturated or ethylenically unsaturated carboxylic acids, as the polymerization initiators and hydrolyzing the polymer, the polymaleic acid thus obtained and the use of the polymaleic acid as an agent for reducing scale formation and hard water deposits in systems through which water flows.

公开(公告)号：DE3789083D1

公开(公告)日：1994-03-24

申请号：DE3789083

申请日：1987-09-17

Applicant: BASF AG

Inventor： DENZINGER WALTER ,  HARTMANN HEINRICH DR ,  GOECKEL ULRICH DR ,  RICHTER FELIX DR ,  WINKLER EKHARD DR ,  RAUBENHEIMER HANS-JUERGEN

IPC: C08F4/28 ,  C02F5/00 ,  C02F5/08 ,  C02F5/10 ,  C08F2/06 ,  C08F4/32 ,  C08F4/34 ,  C08F8/12 ,  C08F20/02 ,  C08F22/02 ,  C08F22/06 ,  C08F122/02

Abstract: A process for the preparation of polymaleic acid by polymerizing maleic anhydride in an aromatic hydrocarbon at from 60 DEG to 200 DEG C., using from 1 to 20% by weight, based on maleic anhydride, of peroxyesters derived from saturated or ethylenically unsaturated carboxylic acids, as the polymerization initiators and hydrolyzing the polymer, the polymaleic acid thus obtained and the use of the polymaleic acid as an agent for reducing scale formation and hard water deposits in systems through which water flows.

公开(公告)号：DE3868118D1

公开(公告)日：1992-03-12

申请号：DE3868118

申请日：1988-04-02

Applicant: BASF AG

Inventor： BAUR RICHARD DR ,  RICHTER FELIX DR ,  BIRNBACH STEFAN DR ,  FIKENTSCHER ROLF DR ,  OFTRING ALFRED DR ,  WINKLER EKHARD DR

IPC: C11D3/26 ,  C07C67/00 ,  C07C229/22 ,  C07C229/32 ,  C07C231/00 ,  C07C231/12 ,  C07C237/06 ,  C07C253/00 ,  C07C255/18 ,  C07C255/24 ,  C09K3/00 ,  C11D3/33 ,  C11D3/39

Abstract: Various new processes are claimed for the prodn. of serine N,N-diacetic acid and N,N-diacetonitrile derivs. if formula (I): (where Y is COOH (opt. in the form of an alkali metal, ammonium or substd. ammonium salt) or CH; and X is COOH (opt. in the form of an alkali metal, ammonium or substd. ammonium salts), CN or a residue CONR3R4 in which R3 and R4 are H or 1-4C alkyl; X not being CN when Y is COOH). The use of serine-N,N-diacetic acid (I,X=COOH, Y=COOH) and its Na, K, ammonium and organic amine salts as complexing agents for heavy metals and/or alkaline earth ions and an building agents and bleach stabilisers in washing and cleaning agents is now. Detergents and cleaning agents contg. 0.01-20 wt.% of (I) (X other than CN) are new and claimed. Serine-N,N-diacetonitrile (i.e. (I,X COOH, Y=CN)) is new and claimed per se.

公开(公告)号：AT59631T

公开(公告)日：1991-01-15

申请号：AT87108944

申请日：1987-06-23

Applicant: BASF AG

Inventor： KOCK HANS-JAKOB DR ,  WINKLER EKHARD DR ,  BAUR RICHARD DR ,  FINKELMANN HEINO PROF DR ,  SCHAFTHEUTLE MARKUS

IPC: C07C69/92 ,  C07C67/14 ,  C08G65/32 ,  C08G65/40 ,  C09K19/20 ,  C09K23/42 ,  C11D1/74 ,  C11D17/00

公开(公告)号：DE3806306A1

公开(公告)日：1989-09-07

申请号：DE3806306

申请日：1988-02-27

Applicant: BASF AG

Inventor： OFTRING ALFRED DR ,  TSCHANG CHUNG-JI DR ,  WINKLER EKHARD DR ,  GOTSMANN GUENTHER DR ,  GLASER KLAUS

IPC: C23C18/38 ,  C23C18/40 ,  H05K3/18

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.

公开(公告)号：DE3760367D1

公开(公告)日：1989-08-31

申请号：DE3760367

申请日：1987-04-18

Applicant: BASF AG

Inventor： GREIF NORBERT DR ,  TSCHANG CHUNG-JI DR ,  GLASER KLAUS ,  WINKLER EKHARD DR ,  OPPENLAENDER KNUT DR ,  VAMVAKARIS CHRISTOS DR

IPC: C25D3/22

公开(公告)号：DE3743741A1

公开(公告)日：1989-07-06

申请号：DE3743741

申请日：1987-12-23

Applicant: BASF AG

Inventor： TSCHANG CHUNG-JI DR ,  DIX JOHANNES PETER DR ,  WINKLER EKHARD DR ,  GOTSMANN GUENTHER DR ,  GLASER KLAUS ,  FIKENTSCHER ROLF DR

IPC: C23C18/20 ,  H05K3/18 ,  H05K3/38

公开(公告)号：DE3716543A1

公开(公告)日：1988-11-24

申请号：DE3716543

申请日：1987-05-16

Applicant: BASF AG

Inventor： TRIESELT WOLFGANG DR ,  BAUR RICHARD DR ,  WINKLER EKHARD DR ,  DIESSEL PAUL ,  SEELMANN-EGGEBERT HANS-PETER D ,  HARTMANN HEINRICH DR ,  BOECKH DIETER DR

IPC: C08L33/02 ,  C08F20/10 ,  C08F220/04 ,  C08F220/06 ,  C08F222/16 ,  C11D3/00 ,  C11D3/37

公开(公告)号：DE3714268A1

公开(公告)日：1988-11-10

申请号：DE3714268

申请日：1987-04-29

Applicant: BASF AG

Inventor： GLASER KLAUS ,  TSCHANG CHUNG-JI DR ,  WINKLER EKHARD DR ,  GOTSMANN GUENTHER DR ,  TRAPP HORST DR

IPC: B23K1/00 ,  B23K35/36 ,  B23K35/363 ,  C08G65/26 ,  C08L71/02 ,  H05K3/24 ,  H05K3/34 ,  B23K35/362 ,  H05K3/22