公开(公告)号：EP0746575B1

公开(公告)日：1997-10-22

申请号：EP95911239.2

申请日：1995-02-17

Applicant: BASF AKTIENGESELLSCHAFT

Inventor： BOECKH, Dieter ,  KISTENMACHER, Axel ,  DENZINGER, Walter ,  RAU, Iris ,  FUNHOFF, Angelika ,  BAUR, Richard ,  KUD, Alexander ,  SCHWENDEMANN, Volker

IPC: C08F218/04 ,  C08F220/04 ,  C11D3/37

CPC classification number: C11D3/3784 ,  C08F8/12 ,  C08F218/08 ,  C08F218/10 ,  C08F220/04 ,  C08F220/06 ,  C08F222/02 ,  C11D3/3757 ,  C11D3/3769 ,  C08F222/10

Abstract: The invention relates to a process for preparing copolymers from vinyl esters and monoethylenically unsaturated carboxylic acids by the radical copolymerisation of: (a) 20 to 80 mol % vinyl esters of aliphatic monocarboxylic acids having at least two carbon atoms, (b) 80 to 20 mol % monoethylenically unsaturated carboxylic acids and, optionally, (c) 0 to 30 mol % of other monoethylenically unsaturated monomers which can be copolymerised, and/or (d) 0 to 10 mol % monomers containing at least two ethylenically unsaturated non-conjugated double bonds in the molecule, in the presence of at least one sulphur, phosphorus and/or nitrogen compound having a reducing effect and of 0.05 to 30 wt %, relative to the monomers, of at least one surfactant in an aqueous medium and in the presence of initiators and, optionally, regulators. The invention further relates to the use of the copolymers or the copolymers comprising vinyl alcohol units obtained therefrom by hydrolysis and/or oxidation, as additives for washing and cleaning agents.

公开(公告)号：EP0663932B1

公开(公告)日：1997-05-07

申请号：EP93921854.1

申请日：1993-09-25

Applicant: BASF Aktiengesellschaft

Inventor： KRONER, Matthias ,  HARTMANN, Heinrich ,  PERNER, Johannes ,  JAEGER, Hans-Ulrich ,  DIESSEL, Paul ,  BAUR, Richard ,  SCHWENDEMANN, Volker

IPC: C08G65/34 ,  C11D3/37

CPC classification number: C04B24/28 ,  B01F17/0028 ,  C04B24/383 ,  C08B31/00 ,  C08G65/34 ,  C11D3/3707

Abstract: Soluble polyacetals containing acetaldehyde acetal units obtainable by the cationically initiated polymerization of (a) compounds containing at least 3 hydroxy groups and (b) divinyl ethers containing terminal vinyl ether groups or mixtures of such divinyl ethers and monovinyl ethers, possibly in the presence of (c) dihydroxy compounds and/or monohydroxy compounds, a process for producing the polyacetals and their use as an additive to low-phosphate and phosphate-free washing and cleaning agents and as dispersants for finely divided minerals.

公开(公告)号：EP0677080B1

公开(公告)日：1997-03-12

申请号：EP94903854.1

申请日：1993-12-21

Applicant: BASF AKTIENGESELLSCHAFT

Inventor： KRONER, Matthias ,  HARTMANN, Heinrich ,  SCHORNICK, Gunnar ,  BAUR, Richard ,  POTTHOFF-KARL, Birgit ,  SCHWENDEMANN, Volker ,  KUD, Alexander

IPC: C08G69/08 ,  C08G69/10 ,  C08G73/10 ,  C08G73/06

CPC classification number: C11D3/3719 ,  B01F17/005 ,  C08G69/10 ,  C08G73/0611 ,  C08G73/1092 ,  C09B67/0085 ,  C09D17/00

Abstract: Described is a method of producing polymers of aspartic acid by reacting (a) maleic acid anhydride and (b) ammonia and/or primary or secondary amines essentially in the molar ratio (a):(b) of 1:0.1 to 1:3 to give half-amides of maleic acid or fumaric acid, or their ammonium salts, at temperatures of up to 100 °C and subsequently condensing the reaction products with each other, optionally also with compounds capable of condensing with them, at temperatures above 100 °C and optionally hydrolysing the condensation products. Also described is the use of the polymers thus produced as scale inhibitors, pigment dispersants and additives to washing and cleaning agents.

公开(公告)号：EP0656914B1

公开(公告)日：1997-01-08

申请号：EP93917793.7

申请日：1993-08-16

Applicant: BASF Aktiengesellschaft

Inventor： FUNHOFF, Angelika ,  MC KEE, Graham, Edmund ,  HARTMANN, Heinrich ,  BAUR, Richard ,  KUD, Alexander ,  SCHWENDEMANN, Volker

IPC: C08G12/18 ,  C11D3/37

CPC classification number: C11D3/3711 ,  B01F17/0028 ,  C08G2/18 ,  C08G4/00

Abstract: A process for the production of polyacetals by the copolymerisation of glyoxylic acid esters with cyclic formals derived from dioles, homopolymers of formaldehyde, trioxepane or mixture of these compounds, in which up to 50 wt % of this group of monomers may be replaced by other conventional copolymerisable monomers like epoxides, aldehydes with at least 2 C atoms, tetrahydrofurane and/or C2 to C4 olefines, in the presence of anionic or cationic polymerisation initiators and possibly the hydrolysis of the glyoxyl acid esters polymerised into the copolymer, use of the polyacetal carboxylates thus obtainable as an additive in low-phosphate and phosphate-free washing and cleaning agents, as a water treatment agent and as a dispersant for finely divided substances, and polyacetals which are obtainable by the anionically or cationically initiated copolymerisation of glyoxyl acid esters with cyclic formals derived from diols and possibly the introduction of stable final groups and possibly hydrolysis of the ester groups of the glyoxyl acid esters polymerised into the copolymers.

公开(公告)号：EP0740696A1

公开(公告)日：1996-11-06

申请号：EP95902787.0

申请日：1994-12-06

Applicant: BASF AKTIENGESELLSCHAFT

Inventor： KRONER, Matthias ,  SCHORNICK, Gunnar ,  BAUR, Richard ,  KUD, Alexander ,  SCHWENDEMANN, Volker

IPC: C11D3 ,  C08G69 ,  C08G73

CPC classification number: C08G69/10 ,  C08G73/1092 ,  C11D3/3719

Abstract: The use of polyasparaginic acid, produced by the polycondensation of asparaginic acid in the presence of phosphoric acid in a molar ratio of 1:0.5 to 1:10 at temperatures of at least 120 °C into polysuccinimide and the subsequent hydrolysis of the polysuccinimide with bases to at least partialy neutralised polyasparaginic acid as an additive to washing and cleaning agents in quantities of 0.1 to 10 wt %, and washing and cleaning agents containing polyasparaginic acid produced in the presence of phosphoric acid.

公开(公告)号：EP0576451B1

公开(公告)日：1996-05-29

申请号：EP92905644.8

申请日：1992-03-07

Applicant: BASF Aktiengesellschaft

Inventor： KAPPES, Elisabeth ,  OFTRING, Alfred ,  BAUR, Richard ,  KUD, Alexander ,  BOECKH, Dieter ,  HARTMANN, Heinrich ,  SCHWENDEMANN, Volker

IPC: C07C69/704 ,  C07H15/04 ,  C07C219/06

CPC classification number: C07H13/04 ,  C07C69/704 ,  C07H15/04 ,  C11D3/2093 ,  C11D3/221 ,  C11D3/30

Abstract: Esters are disclosed of citric acid or acetylcitric acid anhydride with compounds containing at least 3 OH groups selected in the group formed by polyglycerine, sucrocarboxylic acids, alkylglucosides, derivates of oligosaccharides, aminosorbit, aminodisorbit, glucosamine, triethanolamine and trishydroxyethyl-melamine, in which each OH group of the ester alcohol components is esterified in average with 0.15 to 1 molecule citric acid or acetylcitric acid anhydride. Also disclosed is the use of these citric acid esters as additives to phosphate-poor or phosphate-free washing and cleaning products.

公开(公告)号：EP0610236B1

公开(公告)日：1995-09-20

申请号：EP92919740.8

申请日：1992-09-21

Applicant: BASF Aktiengesellschaft

Inventor： OFTRING, Alfred ,  BURKHART, Bernd ,  SCHWENDEMANN, Volker ,  GLASER, Klaus

IPC: C25D3/18 ,  C25D3/14

CPC classification number: C25D3/18

Abstract: The production of nickel-plated castings by the galvanic separation of nickel from aqueous-acid baths containing as the essential component one or more nickel salts, one or more inorganic acids and one or more brighteners, in which the brighteners used are cyclic ammonium compounds (I) in which the N atom is a component of a pyridine, quinoline or isoquinoline ring system which can also carry one or two C1 to C4-alkyl-substituted constituents and: R?1 and R2¿ are hydrogen or C¿1? to C4-alkyl; A is a group of the formula -CO-R?3¿, -CO-O-R3, -CO-CH?2-CO-O-R3¿ or -O-R3, wherein: R3 is C1 to C12-alkyl, C5 to C8-cycloalkyl, C7 to C4-alkyl radicals, C1 to C4-alkoxy radicals, halogen atoms, hydroxyl groups, phenyl radicals or C1 to C4-alkoxy carbonyl groups; m is a number from 0 to 10; n is a number from 2 to 4; and p is 0 or 1, and X- is an n-valent inorganic or organic anion promoting water-solubility; with the proviso that if p = 0 and A = -CO-O-C¿1? - C12-alkyl, m may not be 1, 2 or 3 and in the same case R?1¿ is not hydrogen if m = 0.

公开(公告)号：EP0621908B1

公开(公告)日：1995-09-06

申请号：EP93902188.7

申请日：1993-01-14

Applicant: BASF Aktiengesellschaft

Inventor： SCHWENDEMANN, Volker ,  GLASER, Klaus ,  TSCHANG, Chung-Ji ,  BURKHART, Bernd ,  OFTRING, Alfred ,  DUNG, Bernhard

IPC: C25D3/16 ,  C25D3/18

CPC classification number: C25D3/14

Abstract: Production of nickel-plated mouldings by the galvanic separation of nickel from aqueous-acidic baths containing as the essential components one or more nickel salts, one or more inorganic acids and at least two brighteners, in that the brightener consists of amixture of: A) 2 to 98 % wt. of one or more cyclic N-allyl or N-vinyl ammonium compounds (I) in which the N-atom is a component of a pyridine, quinoline or isoquinoline ring system which can also carry one or two C1 to C4-alkyl substituents or halogen atoms, R?1, R3 and R4¿ are hydrogen or C¿1? to C4-alkyl, R?2¿ is hydrogen or methyl, m is a number from 0 to 4, n is a number from 1 to 4 and X- is an n-valent inorganic or organic anion which promotes solubility in water; and B) 98 to 2 % wt. of one or more acetylenically unsaturated compounds (II): R?4-C=C-R5¿ in which the radicals R?4 and R5¿ are the same or different and are hydroxyl, sulpho, amino, C¿1? to C4-alkylamino or di(C1 to C4-alkyl)amino-substitued C1 to C4-alkyl, in which hydroxyl groups can be caused to react with 1 to 10 mol of a C1 to C4-alkylene oxide or a mixture of such alkylene oxides and one of the radicals R?4 or R5¿ may also be hydrogen or C¿1? to C4-alkyl.

公开(公告)号：EP0667878A1

公开(公告)日：1995-08-23

申请号：EP93924547.0

申请日：1993-10-29

Applicant: BASF Aktiengesellschaft

Inventor： KRONER, Matthias ,  SCHORNICK, Gunnar ,  BAUR, Richard ,  SCHWENDEMANN, Volker ,  HARTMANN, Heinrich

IPC: B01F17 ,  C08G65 ,  C08G81 ,  C08J3 ,  C11D3

CPC classification number: C08J3/246 ,  C08G65/34 ,  C11D3/3711

Abstract: Block copolyacetals are produced by the cationically initiated polyaddition of (A) acetaldehyde acetal units-containing polyacetals with at least 2 OH groups per molecule; and (B) acetaldehyde acetal units-containing polyacetals with at least 2 vinylether groups per molecule with a molar ratio (A):(B) from 2:1 to 1:2. Also disclosed is a process for producing these block copolyacetals by cationically initiated polyaddition of (A) and (B), as well as the use of these block polyacetals as additives for phosphate-poor and phosphate-free washing and cleaning agents, and as weakly foaming surfactants in dishwashing detergents.

公开(公告)号：EP0663932A1

公开(公告)日：1995-07-26

申请号：EP93921854.0

申请日：1993-09-25

Applicant: BASF Aktiengesellschaft

Inventor： KRONER, Matthias ,  HARTMANN, Heinrich ,  PERNER, Johannes ,  JAEGER, Hans-Ulrich ,  DIESSEL, Paul ,  BAUR, Richard ,  SCHWENDEMANN, Volker

IPC: B01F17 ,  C04B24 ,  C08B31 ,  C08G65 ,  C11D3

CPC classification number: C04B24/28 ,  B01F17/0028 ,  C04B24/383 ,  C08B31/00 ,  C08G65/34 ,  C11D3/3707

Abstract: Soluble polyacetals containing acetaldehyde acetal units obtainable by the cationically initiated polymerization of (a) compounds containing at least 3 hydroxy groups and (b) divinyl ethers containing terminal vinyl ether groups or mixtures of such divinyl ethers and monovinyl ethers, possibly in the presence of (c) dihydroxy compounds and/or monohydroxy compounds, a process for producing the polyacetals and their use as an additive to low-phosphate and phosphate-free washing and cleaning agents and as dispersants for finely divided minerals.