公开(公告)号：DE59410351D1

公开(公告)日：2004-02-12

申请号：DE59410351

申请日：1994-06-07

Applicant: BASF AG

Inventor： SCHNEIDER DR ,  POTTHOFF-KARL DR ,  KUD DR ,  BAUR DR ,  OFTRING DR ,  GREINDL DR

IPC: C07D307/54 ,  A23C7/02 ,  A61K8/44 ,  A61Q11/00 ,  C07B61/00 ,  C07C227/00 ,  C07C227/02 ,  C07C227/18 ,  C07C227/26 ,  C07C229/16 ,  C07C229/26 ,  C07C229/30 ,  C07C229/34 ,  C07C229/36 ,  C07C255/24 ,  C07C255/25 ,  C07D207/337 ,  C07D211/74 ,  C07D213/55 ,  C07D263/32 ,  C07D277/30 ,  C07D307/24 ,  C07D333/24 ,  C11D3/33 ,  C11D11/00 ,  C11D17/06 ,  D06L1/14 ,  D06L3/02 ,  D06L4/12 ,  D06L4/30 ,  D06M11/40 ,  D21C9/10 ,  D21C9/16 ,  G03C5/305 ,  G03C5/38 ,  G03C5/44 ,  G03C7/42

Abstract: Use of glycine-N,N-diacetic acid derivs. of formula (I) is claimed as complex formers for alkaline earth or heavy metals. R = 1-20C alkyl, 2-20C alkenyl or -A.CH(COOM).N(CH2COOM)2; A = 1-12C alkylene or a chemical bond; M = H, alkali metal or opt. substd. ammonium. The use of ~a-alanine-N,N-diacetic acids as builders in textile-washing powders or as Ca sequestrants in oral hygiene compsns. is specifically excluded. Also claimed are 2-alkylglycine-N,N-diacetonitriles or 2-alkylglycinenitrile -N,N-diacetonitriles (where alkyl = 1-20C alkyl or 2-20 C alkenyl); and cpds. of formula (II). X = carboxylic acid or nitrile function. Cpds. of formula (I) are new except when R = 1-3C alkyl and A = chemical bond.

公开(公告)号：DE59410198D1

公开(公告)日：2002-11-21

申请号：DE59410198

申请日：1994-06-07

Applicant: BASF AG

Inventor： SCHNEIDER DR ,  POTTHOFF-KARL DR ,  KUD DR ,  BAUR DR ,  OFTRING DR ,  GREINDL DR

IPC: C07D307/54 ,  A23C7/02 ,  A61K8/44 ,  A61Q11/00 ,  C07B61/00 ,  C07C227/00 ,  C07C227/02 ,  C07C227/18 ,  C07C227/26 ,  C07C229/16 ,  C07C229/26 ,  C07C229/30 ,  C07C229/34 ,  C07C229/36 ,  C07C255/24 ,  C07C255/25 ,  C07D207/337 ,  C07D211/74 ,  C07D213/55 ,  C07D263/32 ,  C07D277/30 ,  C07D307/24 ,  C07D333/24 ,  C11D3/33 ,  C11D11/00 ,  C11D17/06 ,  D06L1/14 ,  D06L3/02 ,  D06L4/12 ,  D06L4/30 ,  D06M11/40 ,  D21C9/10 ,  D21C9/16 ,  G03C5/305 ,  G03C5/38 ,  G03C5/44 ,  G03C7/42

Abstract: Use of glycine-N,N-diacetic acid derivs. of formula (I) is claimed as complex formers for alkaline earth or heavy metals. R = 1-20C alkyl, 2-20C alkenyl or -A.CH(COOM).N(CH2COOM)2; A = 1-12C alkylene or a chemical bond; M = H, alkali metal or opt. substd. ammonium. The use of ~a-alanine-N,N-diacetic acids as builders in textile-washing powders or as Ca sequestrants in oral hygiene compsns. is specifically excluded. Also claimed are 2-alkylglycine-N,N-diacetonitriles or 2-alkylglycinenitrile -N,N-diacetonitriles (where alkyl = 1-20C alkyl or 2-20 C alkenyl); and cpds. of formula (II). X = carboxylic acid or nitrile function. Cpds. of formula (I) are new except when R = 1-3C alkyl and A = chemical bond.

公开(公告)号：DE59606209D1

公开(公告)日：2001-01-18

申请号：DE59606209

申请日：1996-09-26

Applicant: BASF AG

Inventor： EXNER DR ,  BAUR DR ,  DOCKNER DR ,  POTTHOFF CHRISTIANE ,  DAMS DR

IPC: C07C67/08 ,  C07C67/54 ,  C07C69/54

Abstract: The continuous prodn. of alkyl(meth)acrylates (I) by the reaction of (meth)acrylic acid (II) and 1-8C monohydric alcohols (III) in homogeneous liq. phase at elevated temp. in the absence of solvent and in presence of an acid esterification catalyst (IV). The process comprises (a) feeding (II), (III) and (IV) continuously into a reaction zone (RZ), (b) removing (I) after a residence time in the form of an azeotrope contg. water or water and (III) in addn. to (I) at the top of a rectifier column (RC) mounted over the RZ, (c) separating the distillate into an organic phase contg. (I) and aq. phase(s) contg. water, (d) recycling part of the organic phase via the top of the column and opt. returning water to the RZ, (e) separating (I) from the rest of the organic phase and removing part of the reaction mixt. continuously from the RZ. The RZ consists of a cascade of at least two reactors in series, and the outflow from one reactor provides the input flow for the next reactor. Also claimed is an appts. for this process.