公开(公告)号：DE4428597A1

公开(公告)日：1996-02-15

申请号：DE4428597

申请日：1994-08-12

Applicant: BASF AG

Inventor： KRONER MATTHIAS DR ,  GEBHARDT NORBERT DR ,  SCHWENDEMANN VOLKER DR ,  SCHORNICK GUNNAR DR

IPC: C02F5/12 ,  C08G73/10 ,  C11D3/37 ,  C08G73/14 ,  C08G69/10

Abstract: Disclosed is a method for producing condensation polymers of aspartic acid by means of condensation polymerization of aspartic acid at temperatures of 140 DEG C in the presence of, relative to aspartic acid, from 1 to less than 5 mol % phosphorous acid or hypophosphorous acid catalyst, and the use of the resulting condensation polymers of aspartic acid as additives in washing and cleaning products, amounting to 0.1 to 10 wt % relative to the washing and cleaning products.

公开(公告)号：DE4427630A1

公开(公告)日：1996-02-08

申请号：DE4427630

申请日：1994-08-04

Applicant: BASF AG

Inventor： GREINDL THOMAS DR ,  KAPPES ELISABETH DR ,  OFTRING ALFRED DR ,  KUD ALEXANDER DR ,  BAUR RICHARD DR ,  KRONER MATTHIAS DR

IPC: C08G63/91 ,  C08G69/48 ,  C08G73/02 ,  C08G73/10 ,  C11D3/37 ,  C08G85/00 ,  C07C243/24 ,  C07C259/04 ,  C08G2/30

Abstract: A process is disclosed for preparing polymers with hydroxamic acid, hydroxamic acid ether and/or hydrazide groups in the side chain, by reacting (a) polymers which contain ester, amide, imide and/or acetal groups in the main chain and carboxyl, ester, imide, amide and/or anhydride groups and/or halogen as side chain, or a polysuccinimide with (b) hydroxylamine, hydroxylamine alkyl ethers with 1 to 18 C atoms in the alkyl group, N-monoalkylhydroxylamines with 1 to 18 C atoms in the alkyl group and/or in salts of said compounds and/or (c) hydrazine and/or hydrazine salts in an aqueous medium or alcohols at pH values of at least 7. Also disclosed is the use of the thus obtained modified polymers as additives to washing and cleaning agents, as complexing agents for alkaline earth and heavy metal ions, as pigment dispersants and as scale inhibitors.

公开(公告)号：DE4427287A1

公开(公告)日：1996-02-08

申请号：DE4427287

申请日：1994-08-02

Applicant: BASF AG

Inventor： KRONER MATTHIAS DR ,  SCHORNICK GUNNAR DR ,  BAUR RICHARD DR ,  POTTHOFF-KARL BIRGIT DR

IPC: C02F5/00 ,  C02F5/12 ,  C08G69/10 ,  C08G73/10 ,  C11D3/37 ,  C08G73/14 ,  C11D3/33

Abstract: A process is disclosed for preparing aspartic acid polycondensates with improved biological degradability by thermal polycondensation of finely powdered aspartic acid in solid phase, at temperatures from 180 to 250 DEG C, until maximum 70 % by weight of the theoretically possible amount of water produced during polycondensation are removed from the reaction mixture. Also disclosed is the use of the thus produced polycondensates as additives for washing and cleaning agents and as scale inhibitors.

公开(公告)号：DE4427233A1

公开(公告)日：1996-01-04

申请号：DE4427233

申请日：1994-06-29

Applicant: BASF AG

Inventor： KRONER MATTHIAS DR ,  SCHORNICK GUNNAR DR ,  FEINDT HANS-JACOB DR ,  SCHWEINZER JUERGEN DR

IPC: C08G69/10 ,  C08G73/06 ,  C08G73/10 ,  C11D3/37 ,  C08G69/00 ,  C08G69/44

Abstract: A process for the production of polyaspartic acid and/or polyaspartic acid imides from (a) maleic acid anhydride, maleic acid, fumaric acid and/or malic acid and (b) ammonia and/or primary or secondary amines in the molar ratio (a):(B) of 1:0.1 to 1:3, possibly in the presence of cocondensable compounds, in which the components (a) and (b) are brought into mutual contact at temperatures of over 100 DEG C, thermally condensed and the polycondensates possibly hydrolised thereafter.

公开(公告)号：DE4327494A1

公开(公告)日：1995-02-23

申请号：DE4327494

申请日：1993-08-16

Applicant: BASF AG

Inventor： KRONER MATTHIAS DR ,  SCHORNICK GUNNAR DR ,  BAUR RICHARD DR ,  KUD ALEXANDER DR ,  POTTHOFF-KARL BIRGIT DR ,  SCHWENDEMANN VOLKER DR

IPC: C02F5/12 ,  C08G73/10 ,  C11D3/37 ,  C07C229/14 ,  C07C235/28 ,  C08G69/10

Abstract: A process for the preparation of polyaspartimides (polyaspartic acid imides) by thermal condensation of aspartic acid, asparagine, monoamides or ammonium salts of maleic acid, fumaric acid or malic acid or mixtures thereof in polyalkylene glycols having a molecular weight of at least 150, polyalkylene glycols in which one or both of the end groups are masked and/or polytetrahydrofurans, and optionally hydrolysis of the polyaspartimides using a base, and the use of the resultant reaction mixtures as an additive to phosphate-free and reduced-phosphate detergents and cleaning agents.

公开(公告)号：DE4307112A1

公开(公告)日：1994-09-08

申请号：DE4307112

申请日：1993-03-06

Applicant: BASF AG

Inventor： FUNHOFF ANGELIKA DR ,  BOECKH DIETER DR ,  KRONER MATTHIAS DR ,  BAUR RICHARD DR ,  KUD ALEXANDER DR ,  SCHORNICK GUNNAR DR ,  SCHWENDEMANN VOLKER DR

IPC: C02F5/10 ,  C08G2/14 ,  C08G2/18 ,  C08G2/30 ,  C09D17/00 ,  C09K8/528 ,  C09K23/52 ,  C11D3/00 ,  C11D3/37 ,  B01F17/52

Abstract: The invention concerns polyacetal-block-containing polymers obtained by polymerizing, in the presence of initiators, carboxylic acid esters containing aldehyde groups and by reacting the polymers with at least bifunctional cross-linking agents, in the presence of acids or Lewis acids and optionally hydrolysing the ester groups thus incorporated in the polymer. The invention also concerns a method of producing polymers containing polyacetal blocks by polymerizing carboxylic acid esters containing aldehyde groups in the presence of initiators and reacting the polyacetals containing terminal hydroxy groups thus obtained with at least bifunctional cross-linking agents, in the presence of acids or Lewis acids, plus the use of the polymers thus obtained as additives in phosphate-free and phosphate-reduced washing and cleaning agents, as scale inhibitors and as dispersants for pigments.

公开(公告)号：DE4237337A1

公开(公告)日：1994-05-11

申请号：DE4237337

申请日：1992-11-05

Applicant: BASF AG

Inventor： KRONER MATTHIAS DR ,  SCHORNICK GUNNAR DR ,  BAUR RICHARD DR ,  SCHWENDEMANN VOLKER DR ,  HARTMANN HEINRICH DR

IPC: C08G65/34 ,  C08G81/00 ,  C08G81/02 ,  C08J3/24 ,  C09K23/52 ,  C11D3/37 ,  C11D1/76 ,  B01F17/52

Abstract: There are described block copolyacetals obtainable by cationically initiated polyaddition of (A) polyacetals containing acetaldehyde acetal units and having at least 2 OH groups in the molecule and (B) polyacetals containing acetaldehyde acetal units and having at least 2 vinyl ether groups in the molecule. in a molar ratio of (A):(B) of from 2:1 to 1:2, processes for preparing the block copolyacetals by cationically initiated polyaddition of (A) and (B), and the use of the block polyacetals as additament to reduced-phosphate and phosphate-free detergents and cleaners and as low-foam surfactants in dishwashing compositions.

公开(公告)号：DE50210951D1

公开(公告)日：2007-11-08

申请号：DE50210951

申请日：2002-04-24

Applicant: BASF AG

Inventor： KRONER MATTHIAS DR ,  BUECHNER KARL-HEINZ ,  BRODT GREGOR DR

IPC: C04B7/52 ,  C08G65/332 ,  C04B24/26 ,  C04B24/32 ,  C04B103/52 ,  C08F6/10 ,  C08F8/14 ,  C08F290/06 ,  C08F299/02 ,  C08L71/02

Abstract: Water soluble polymer comprising esters of acrylic acid, methacrylic acid and alkylpolyalkyene glycols, is prepared by esterification followed by radical polymerization of the resulting mixture in an aqueous medium, whereby the organic solvent is azeotropically distilled off during the polymerization and recycled to the mixture or is replaced by the addition of fresh water. A water soluble polymer (I) comprising esters of acrylic acid, methacrylic acid and alkylpolyalkyene glycols, is prepared by esterification of a mixture of acrylic acid (A), methacrylic acid (B) and an alkylpolyalkylene glycol (C) having a mol.wt. (Mw) of 350-4000 in a molar ratio of (A) to (C) of 0.1-4:1, a molar ratio of (B to (C) of 1-5:1 and molar ratio of the sum of (A) and (B) to (C) of 2-6:1, in the presence of an organic solvent that forms an azeotrope with water to at least 85 wt.% (w.r.t. (C)), followed by radical polymerization of the resulting mixture in an aqueous medium, whereby the organic solvent is azeotropically distilled off from the reaction mixture during the polymerization and the distilled water is recycled to the mixture or is replaced by the addition of fresh water.

公开(公告)号：DE59209371D1

公开(公告)日：1998-07-16

申请号：DE59209371

申请日：1992-12-05

Applicant: BASF AG

Inventor： KRONER MATTHIAS DR ,  HARTMANN HEINRICH DR ,  BAUR RICHARD DR ,  SCHWENDEMANN VOLKER DR ,  JAEGER HANS-ULRICH DR ,  PERNER JOHANNES DR

IPC: C08G2/00 ,  C08G65/00 ,  C08G65/34 ,  C08L59/00 ,  C11D1/66 ,  C11D3/37

公开(公告)号：DE19532717A1

公开(公告)日：1997-03-06

申请号：DE19532717

申请日：1995-09-05

Applicant: BASF AG

Inventor： BAUR RICHARD DR ,  BERTLEFF WERNER DR ,  JAEGER HANS-ULRICH DR ,  FUNHOFF ANGELIKA DR ,  KRONER MATTHIAS DR ,  SCHORNICK GUNNAR DR

IPC: C08G69/10 ,  C08G69/36 ,  C08G73/06 ,  C08G73/10 ,  C11D3/37 ,  C11D3/33 ,  C11D1/83

Abstract: The invention concerns the use of modified polyaspartic acids as additives to washing agents and washing agents containing the modified polyaspartic acids in amounts of between 0.1 and 20 wt.%. The modified polyaspartic acids are obtained by the polycondensation of aspartic acid in the presence of: (a) 2.5 to 25 mol % amines with at least 6 carbon atoms; and (b) at least 2 wt.% phosphoric acid, phosphorous acid, hypophosphorous acid, polyphosphoric acids, phosphorus pentoxide, phosphonic acids or mixtures of said acids, in each case relative to the amount of aspartic acid used, at temperatures of at least 120 DEG C and subsequent hydrolysis with bases to give modified polyaspartic acids with a phosphorus content of between 0.5 and 10 wt.%.