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    201.
    发明专利
    未知

    公开(公告)号：DE19607551A1

    公开(公告)日：1997-09-04

    申请号：DE19607551

    申请日：1996-02-28

    Applicant: BASF AG

    Inventor： HAEHNLE HANS-JOACHIM ,  WALTER MANFRED ,  TROPSCH JUERGEN ,  KREMESKOETTER JENS ,  SCHORNICK GUNNAR ,  ANSTOCK THOMAS

    IPC: A61F13/00 ,  A61F13/53 ,  A61L15/00 ,  A61L15/16 ,  A61L15/42 ,  A61L15/60 ,  C05G3/80 ,  C08F2/44 ,  C08F2/48 ,  C08F220/06 ,  C08J9/30 ,  C08L33/02 ,  C08F20/04 ,  C05F3/04 ,  B65D65/38 ,  C08J9/16

    Abstract: The invention concerns water-absorbent cross-linked polymers in foam form which are obtained by: (I) foaming a polymerizable aqueous mixture which comprises: (a) monoethylenically unsaturated monomers which contain acid groups and are neutralized to at least 50 mol %; (b) optionally other monoethylenically unsaturated monomers; (c) cross-linking agents; (d) initiators; (e) between 0.1 and 20 wt % of at least one surfactant; (f) optionally at least one solubilizer; and (g) optionally thickening agents, foam stabilizers, polymerization regulators, fillers and/or cell nucleating agents; foaming occurring by dispersing fine bubbles of a gas which is inert with respect to radicals; and (II) polymerizing the foamed mixture, forming a foam-form hydrogel and optionally adjusting the water content of the foam-form polymer to between 1 and 60 wt %. The invention further concerns a process for preparing these polymers and their use in sanitary articles which are used to absorb body fluids, and in bandaging material for covering wounds.

    203.
    发明专利
    未知

    公开(公告)号：NO972226L

    公开(公告)日：1997-07-14

    申请号：NO972226

    申请日：1997-05-14

    Applicant: BASF AG

    Inventor： WARZELHAN VOLKER ,  SCHORNICK GUNNAR ,  BRUCHMANN BERND ,  SEELIGER URSULA ,  YAMAMOTO MOTONORI ,  BAUER PETER

    IPC: A01G13/02 ,  C08L3/00 ,  C08G18/42 ,  C08G18/46 ,  C08G18/66 ,  C08G63/00 ,  C08G63/183 ,  C08G63/20 ,  C08G63/60 ,  C08G63/688 ,  C08G63/91 ,  C08L3/02 ,  C08L67/02 ,  C08L75/06 ,  C08L101/16 ,  C09D167/00 ,  C09K17/52

    Abstract: The following are claimed: (A) biodegradable polyester P1, preparable by reaction of a mixt. comprising: (a1) a mixt. comprising: (a11) 35-95 mol.% of adipic acid and/or one or more ester-forming derivs. of this, (a12) 5-65 mol.% of terephthalic acid and/or one or more ester-forming derivs. of this, and (a13) 0-5 mol.% of a cpd. contg. sulphonate gps., the total of mol.% in (a11)-(a13) being 100 mol.%; and (a2) a dihydroxy cpd. selected from 2-6C alkane-diols and 5-10C cycloalkane-diols. The molar ratio of (a1) to (a2) is 0.4-1.5:1. In addn., 0.01-5 mol.% (based on the molar amt. of component (a1)) of a cpd. D, which comprises at least three gps. capable of forming ester gps., are also used for prodn. of polyester P1. Polyester P1 has (a) a mol.wt. (Mn) of 5000-50000 g/mol; (b) a viscosity no. of 30-350 g/ml (measured in o-dichlorobenzene/phenol (wt. ratio 50/50) at 25 degrees C and a P1 concn. of 0.5 wt.%); and (c) a m.pt. of 50-170 degrees C. (B) biodegradable polyester P2, preparable by reaction of a mixt. comprising: (b1) mixt. comprising: (b11) 20-95 mol.% of adipic acid and/or one or more ester-forming deriv. of this, (b12) 5-80 mol.% of terephthalic acid and/or one or more ester- forming deriv. of this, and (b13) 0-5 mol.% of a cpd. contg. sulphonate gps., the total of mol.% in (b11)-(b13) being 100 mol.%; (b2) a dihydroxy cpd. as (a2) above; (b3) 0.01-100 wt.% (based on the amt. of component (b1) of a hydroxycarboxylic acid B1 which is of formula (Ia) or (Ib); and (b4) 0-5 mol.% (based on the amt. of component (b1)) of a cpd. D. The molar ratio of (b1) to (b2) is 0.4-1.25:1. Polyester P2 has (a) a mol.wt. (Mn) of 5000-80000 g/mol; (b) a viscosity no. of 30 - 450 g/ml (measured in o-dichlorobenzene/phenol (wt. ratio 50/50) at 25 degrees C and a P2 concn. of 0.5 wt.%); and (c) a m.pt. of 50-235 degrees C. p = a whole no. from 1-1500; r = a whole no. from 1-4; G = phenylene, (CH2)k, C(R)H and C(R)HCH2; k = 1-5; R = Me or Et. (C) biodegradable polyester Q1 which have: (a) a mol.wt. (Mn) of 5000-100000 g/mol; (b) a viscosity no. of 30-450 g/ml (measured in o-dichlorobenzene/phenol (wt. ratio 50/50) at 25 degrees C and a Q1 concn. of 0.5 wt.%); and (c) a m.pt. of 50-235 degrees C. Q1 are obtained by reaction of a mixt. comprising; (c1) polyester P1 and/or a polyester PWD; (c2) 0.01-50 wt.% (based on (c1)) of a hydroxycarboxylic acid B1; and (c3) 0-5 mol.% (based on the amt. of component (a1) used in prodn. of P1 and/or PWD) of a cpd. D. Polyester PWD is obtainable by reaction of components (a1) and (a2) in a molar ratio of (a1) to (a2) of 0.4-1.5:1. Polyester PWD have: (a) a mol.wt. (Mn) of 5000 - 50000 g/mol; (b) a viscosity no. of 30 - 350 g/ml (measured in o-dichlorobenzene/phenol (wt. ratio 50/50) at 25 degrees C and a PWD concn. of 0.5 wt.%); and (c) a m.pt. of 50-170 degrees C. (D) biodegradable polyesters Q2 which have: (a) a mol.wt. (Mn) of 6000 - 60000 g/mol; (b) a viscosity no. of 30-350 g/ml (measured in o-dichlorobenzene/phenol (wt. ratio 50/50) at 25 degrees C and a Q2 concn. of 0.5 wt.%); and (c) a m.pt. of 50-170 degrees C. Q2 are obtained by reaction of a mixt. comprising: (d1) 95-99.9 wt.% of polyester P1 and/or PWD; and (d2) 0.1-50 wt.% of a diisocyanate C1; and (d3) 0-5 mol.% (based on the amt. of component (a1) used in prodn. of P1 and/or PWD) of a cpd. D. (E) biodegradable polymers T1 which have: (a) a mol.wt. (Mn) of 10000 - 100000 g/mol; (b) a viscosity no. of 30-450 g/ml (measured in o-dichlorobenzene/phenol (wt. ratio 50/50) at 25 degrees C and a T1 concn. of 0.5 wt.%); and (c) a m.pt. of 50-235 degrees C. T1 are obtd. by reaction of polyester Q1 with (e1) 0.1-5 wt.% (based on the amt. of Q1) of diisocyanate C1 and (e2) 0-5 mol.% (based on the amt. of component (a1) used in prodn. of Q1 via the polyester P1 and/or PWD) of a cpd. D. (F) biodegradable polymers T2 which have: (a) a mol.wt. (Mn) of 10000 - 100000 g/mol/. (b) a viscosity no. of 30-450 g/ml (measured in o-dichlorobenzene/phenol (wt. ratio 50/50) at 25 degrees C and a T2 concn. of 0.5 wt.%); and (c) a m.pt. of 50-235 degrees C. T2 are obtained by reaction of polyester Q2 with (f1) 0.01-50 wt.% (based on the amt. of Q2) of hydroxycarboxylic acid B1 and (f2) 0-5 mol.% (based on the amt. of component (a1) used in prodn. of Q2 via the polyester P1 and/or PWD) of a cpd

    204.
    发明专利
    未知

    公开(公告)号：NO973228D0

    公开(公告)日：1997-07-11

    申请号：NO973228

    申请日：1997-07-11

    Applicant: BASF AG

    Inventor： WARZELHAN VOLKER ,  SCHORNICK GUNNAR ,  BAUMANN EDWIN ,  SEELIGER URSULA ,  YAMAMOTO MOTONORI ,  RAMLOW GERHARD

    IPC: C08G18/60 ,  C08G69/44 ,  C08G73/04 ,  C08J9/04 ,  C08L1/02 ,  C08L77/12 ,  C08L101/16 ,  C09D175/12 ,  C09J177/12 ,  D21H19/30

    Abstract: Biodegradable polyesteramides as defined in the specification are obtained by reacting a mixture consisting essentially ofa1) a mixture consisting essentially of35 to 95 mol % of adipic acid or ester-forming derivatives thereof,5 to 65 mol % of terephthalic acid or ester-forming derivatives thereof, and0 to 5 mol % of a compound containing sulfonate groups,a2) a mixture consisting essentially of95.5 to 0.5 mol % of a dihydroxy compound,0.5 to 99.5 mol % of an amino-C2-C12-alkanol or an amino-C5-C10-cycloalkanol,0 to 50 mol % of a diamino-C1-C8-alkane, and0 to 50 mol % of a 2,2'-bisoxazoline of the formula I wherein R1 is as set forth in the specification, anda3) 0 to 5 mol %, based on a1), of a compound D as set forth in the specification;and other biodegradable polymers and thermoplastic molding compositions, their manufacture and their use for producing biodegradable moldings, adhesives, foams, and coatings.

    205.
    发明专利
    未知

    公开(公告)号：ES2101517T3

    公开(公告)日：1997-07-01

    申请号：ES94909115

    申请日：1994-03-05

    Applicant: BASF AG

    Inventor： KRONER MATTHIAS ,  SCHORNICK GUNNAR ,  DENZINGER WALTER ,  BAUR RICHARD ,  KUD ALEXANDER ,  POTTHOFF-KARL BIRGIT

    IPC: C08F8/14 ,  C08F8/30 ,  C08F8/44 ,  C08F8/48 ,  C08G69/10 ,  C08G73/06 ,  C08G73/10 ,  C09K23/00 ,  C09K23/52 ,  C11D3/37

    Abstract: PCT No. PCT/EP94/00660 Sec. 371 Date Sep. 13, 1995 Sec. 102(e) Date Sep. 13, 1995 PCT Filed Mar. 5, 1994 PCT Pub. No. WO94/21695 PCT Pub. Date Sep. 29, 1994Polycocondensates based on aspartic acid which are obtainable by condensing aspartic acid in the presence of polymers containing carboxyl groups, which contain at least 10 mol % of a monoethylenically unsaturated carboxylic acid in copolymerized form and have a molecular weight of at least 300, in the weight ratio from 1,000:1 to 2:1, processes for preparing the polycocondensates and use of the polycocondensates in the form of the free acid groups or in a form neutralized with ammonia, amines, alkali metal or alkaline earth metal bases as an additive to detergents and cleaners, as scale inhibitors or as dispersants for finely divided solids are described.

    206.
    发明专利
    未知

    公开(公告)号：AT153347T

    公开(公告)日：1997-06-15

    申请号：AT94909115

    申请日：1994-03-05

    Applicant: BASF AG

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

    IPC: C08F8/14 ,  C08F8/30 ,  C08F8/44 ,  C08F8/48 ,  C08G69/10 ,  C08G73/06 ,  C08G73/10 ,  C09K23/00 ,  C09K23/52 ,  C11D3/37

    Abstract: PCT No. PCT/EP94/00660 Sec. 371 Date Sep. 13, 1995 Sec. 102(e) Date Sep. 13, 1995 PCT Filed Mar. 5, 1994 PCT Pub. No. WO94/21695 PCT Pub. Date Sep. 29, 1994Polycocondensates based on aspartic acid which are obtainable by condensing aspartic acid in the presence of polymers containing carboxyl groups, which contain at least 10 mol % of a monoethylenically unsaturated carboxylic acid in copolymerized form and have a molecular weight of at least 300, in the weight ratio from 1,000:1 to 2:1, processes for preparing the polycocondensates and use of the polycocondensates in the form of the free acid groups or in a form neutralized with ammonia, amines, alkali metal or alkaline earth metal bases as an additive to detergents and cleaners, as scale inhibitors or as dispersants for finely divided solids are described.

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