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    42.
    发明专利
    未知

    公开(公告)号：DE19630280A1

    公开(公告)日：1998-01-29

    申请号：DE19630280

    申请日：1996-07-26

    Applicant: BASF AG

    Inventor： KRONER MATTHIAS DR

    IPC: C08G69/10 ,  C08F283/04 ,  C08G73/06 ,  C08G73/10 ,  C08G69/44

    Abstract: A process is disclosed for preparing cocondensates of aspartic acid and amines by heating aspartic acid and amines in the presence of acid catalysts. Particulate aspartic acid is supplied to the inlet zone of an extruder and at least one amine and an acid catalyst are added in a following metering zone. The resulting mixture is condensed by heating until it contains at least 20 to 95 % by weight aspartic acid in condensed form. The precondensate is then finally condensed. The thus obtained cocondensates are useful as incrustation inhibitors for washing products.

    44.
    发明专利
    未知

    公开(公告)号：DE19511859A1

    公开(公告)日：1996-10-02

    申请号：DE19511859

    申请日：1995-03-31

    Applicant: BASF AG

    Inventor： KRONER MATTHIAS DR ,  SCHORNICK GUNNAR DR ,  BAUR RICHARD DR

    IPC: C02F5/12 ,  C08F283/04 ,  C08G73/10 ,  C08L77/04 ,  C11D3/37 ,  C08G69/48 ,  C08G69/10

    Abstract: The invention concerns a method of preparing mixtures of alkali-metal salts of polyaspartic acids and alkali-metal salts of acylated polyaspartic acids by a) hydrolytically cleaving peptide bonds of polyaspartimides and/or polyaspartic acids with aqueous alkali-metal bases, a molar excess of at least one alkali-metal base being used per mole of aspartimide and/or aspartic acid units and b) reacting, in aqueous solution at pH values of 6 and over, the hydrolysis products with carboxylic acid chlorides, diketenes, carboxylic acid esters or caboxylic acid anhydrides or polymers which contain polymerized anhydride and/or ester groups. The invention also concerns the use of such mixtures as additives to phosphate-free and phosphate-reduced washing and cleaning agents.

    45.
    发明专利
    未知

    公开(公告)号：DE4440836A1

    公开(公告)日：1996-05-23

    申请号：DE4440836

    申请日：1994-11-15

    Applicant: BASF AG

    Inventor： WARZELHAN VOLKER DR ,  BRAUN FRANK DR ,  KRONER MATTHIAS DR ,  SEELIGER URSULA DR ,  YAMAMOTO MOTONORI ,  BUESCHL RAINER DR

    IPC: C08G63/60 ,  C08G63/672 ,  C08G63/688 ,  C08G63/91 ,  C08J9/04 ,  C08L3/00 ,  C08L67/02 ,  C08L101/16 ,  C09J167/02 ,  C05F9/00 ,  C08G63/20 ,  C08G63/78 ,  C08G81/00

    Abstract: The invention concerns biodegradable polyether esters obtained by reacting a mixture consisting of: (a1) 95 to 99.9 wt % polyether ester P1, obtained by reacting a mixture consisting of: (b1) a mixture consisting of: 20 to 95 mol % adipic acid or esterifying derivatives thereof or mixtures thereof; 5 to 80 mol % terephthalic acid or esterifying derivatives thereof or mixtures thereof; and 0 to 5 mol % of a sulphonate group-containing compound; and (b2) a mixture of dihydroxy compounds, essentially consisting of: (b21) 15 to 99.8 mol % of a dihydroxy compound; and (b22) 85 to 0.2 mol % of an ether function-containing dihydroxy compound as per formula (I) HO-[(CH2)n-O]m-H, in which n stands for 2, 3 or 4 and m stands for an integer from 2 to 250, or mixtures thereof, the molar ratio of (b1) to (b2) ranging from 0.4:1 to 1.5:1; (a2) 0.1 to 5 wt % of a divinylether C1; and (a3) 0 to 5 mol % of compound D; as well as further biodegradable polymers and thermoplastic moulding compounds. The invention also concerns a process for their preparation, their use for producing biodegradable moulded bodies and adhesives, and biodegradable moulded bodies, foams and blends with starch obtained from the polymers and moulding compounds according to the invention.

    47.
    发明专利
    未知

    公开(公告)号：DE4428596A1

    公开(公告)日：1996-02-15

    申请号：DE4428596

    申请日：1994-08-12

    Applicant: BASF AG

    Inventor： KRONER MATTHIAS DR ,  SCHORNICK GUNNAR DR

    IPC: C02F5/12 ,  C08G69/10 ,  C08G73/06 ,  C08G73/10 ,  C11D3/37 ,  C08G73/14

    Abstract: Disclosed is a method for producing condensation polymers of aspartic acid by means of condensation polymerization of aspartic acid at temperatures above 140 DEG C in the presence of catalyst mixtures of potassium and sodium hydrogen sulfate, the melting points of which are at most 200 DEG C, and the use of resulting products, neutralized with alkali metal bases, as additives in low-phosphate and phosphate-free detergents and cleaners.

    49.
    发明专利
    未知

    公开(公告)号：DE4327223A1

    公开(公告)日：1995-02-16

    申请号：DE4327223

    申请日：1993-08-13

    Applicant: BASF AG

    Inventor： KORMANN CLAUDIUS DR ,  SCHWAB EKKEHARD DR ,  FUNHOFF ANGELIKA DR ,  BOECKH DIETER DR ,  KRONER MATTHIAS DR

    IPC: A61K49/18 ,  C09D5/23 ,  C09D11/00 ,  C09D11/02 ,  C09K23/52 ,  G11B5/70 ,  H01F1/44 ,  B01F17/52 ,  H01H1/28 ,  H01F1/36

    Abstract: Magnetic ink concentrates are described which consist of a dispersion of superparamagnetic or magnetically hard solid particles which are present in water or in alcohol having a dielectric constant of >/= 20 in the presence of dispersing substances, the dispersing substances (dispersants) being polyelectrolytes which have a molecular weight of between 500 and 100,000 and contain at least two identical or different hetero atoms in the main chain and at least three free carboxyl groups or three free amino groups in the side chain. Such polyelectrolytes are readily biodegradable. These ink concentrates have advantageous properties, especially with regard to stability to sedimentation.

    50.
    发明专利
    未知

    公开(公告)号：DE4311854A1

    公开(公告)日：1994-10-13

    申请号：DE4311854

    申请日：1993-04-10

    Applicant: BASF AG

    Inventor： KRONER MATTHIAS DR ,  SCHORNICK GUNNAR DR ,  BAUR RICHARD DR ,  KUD ALEXANDER DR ,  SCHWENDEMANN VOLKER DR

    IPC: C09K23/30 ,  C11D3/37 ,  B01F17/30

    Abstract: PCT No. PCT/EP94/00982 Sec. 371 Date Oct. 10, 1995 Sec. 102(e) Date Oct. 10, 1995 PCT Filed Mar. 29, 1994 PCT Pub. No. WO94/24254 PCT Pub. Date Oct. 27, 1994Use of carboxyl-containing reaction products of (a) maleic anhydride, maleic acid and/or fumaric acid, and (b) proteins or protein hydrolyzates having an acid number of at least 1.5 mmol of NaOH/g of reaction product, as ingredient of reduced-phosphate and phosphate-free detergents and cleaners.

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