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    Back sheet for hygiene articles, e.g. disposable diapers, contains a sheet of biodegradable polymer with high water vapor permeability and flexibility, consisting of a special partly aromatic polyester
    23.
    发明专利
    Back sheet for hygiene articles, e.g. disposable diapers, contains a sheet of biodegradable polymer with high water vapor permeability and flexibility, consisting of a special partly aromatic polyester 未知

    公开(公告)号：DE10054650A1

    公开(公告)日：2002-05-08

    申请号：DE10054650

    申请日：2000-11-03

    Applicant: BASF AG

    Inventor： VOLLMANN HANS-PETER ,  SKUPIN GABRIEL ,  WITT UWE ,  HERFERT NORBERT ,  YAMAMOTO MOTONORI

    IPC: A61F13/15 ,  C08G63/199 ,  C08G63/672 ,  C08J5/18 ,  C08J5/04 ,  C08G63/20 ,  C08J7/04

    Abstract: A back sheet for hygiene articles contains a sheet of biodegradable polymer with high water vapor permeability and high flexibility, consisting of partly aromatic polyester based on an acid component comprising 50-70 mol% (cyclo)aliphatic dicarboxylic acid and 30-50 mol% aromatic dicarboxylic acid, plus (cyclo)alkanediol(s) and optional components. A back sheet for hygiene articles contains a sheet of biodegradable polymer (BP) with a water vapor permeability of 100-5000 g/m /24 hours (ASTM F 1249; at 38 deg C and 90% RH) and an elastic modulus of 20-300 MPa (ISO 527; cross-head speed 1 mm/min). The polymer (BP) is a partly aromatic polyester based on (A) an acid component comprising (a1) 50-70 mol% aliphatic and cycloaliphatic dicarboxylic acid(s) (or ester-forming derivatives), (a2) 30-50 mol% aromatic dicarboxylic acid(s) (or ester-forming derivatives) and (a3) 0-5 mol% of a compound with sulfonate groups, (B) 2-12C alkanediol(s) and 5-10C cycloalkanediol(s) and optionally the following: (C) a component selected from (c1) ether function-containing diols of formula HO-((CH2)n-O)m-H (I), (C2) hydroxy-acids of formula (IIa) or (IIb), (c3) 2-12C aminoalkanols and 5-10C aminocyclo-alkanols, (c4) diamino-(1-8C alkanes), (c5) 2,2'-bis-oxazolines of formula (III) and (c6) amino-acids selected from natural amino-acids, polyamides with a mol. wt. of not more than 18000 (by polymerisation of 4-6C diacids with 4-10C diamines), compounds of formula (IVa) or (IVb) and polyoxazolines with repeating units of formula (V) and (D) a component selected from (d1) compounds with at least 3 ester-forming groups, (d2) isocyanates and (d3) divinyl ethers. HO-(-C(O)-G-O-)pH (IIa) n = 2, 3 or 4; m = 2-250; p = 1-1500; r = 1-4; G = phenylene, -(CH2)q-, -CHR- or -CHR-CH2-; q = 1-5; R = methyl or ethyl; R = a single bond, -(CH2)z- or phenylene; z = 2, 3 or 4; s = 1-1500; t = 1-4; T = as for G, except that q = 1-12; R = H, 1-6C alkyl, 5-8C cycloalkyl, phenyl (optionally substituted with up to three 1-4C alkyl groups) or tetrahydrofurfuryl.

    Biologically degradable polyesters useful for bristle production includes specified acid component, diol component and component selected from dihydoxy compound
    25.
    发明专利
    Biologically degradable polyesters useful for bristle production includes specified acid component, diol component and component selected from dihydoxy compound 未知

    公开(公告)号：DE19848505A1

    公开(公告)日：2000-04-27

    申请号：DE19848505

    申请日：1998-10-21

    Applicant: BASF AG

    Inventor： WITT UWE ,  SKUPIN GABRIEL ,  WORF GUENTHER

    IPC: A46D1/00 ,  C08G63/199 ,  C08G63/672 ,  C08G69/44 ,  D01F6/84 ,  C08G63/181 ,  C08G63/60 ,  D01F6/92

    Abstract: The use of biologically degradable polyesters for the manufacture of bristles is new. The polyesters are partially aromatic polyesters containing: (A) an acid component from: (a1) 30-95 mol% of at least one aliphatic or at least one cycloaliphatic dicarboxylic acid, an ester forming derivative of this, or their mixtures, (a2) 5-70 mol% of at least one aromatic dicarboxylic acid, an ester forming derivative of this, or their mixtures, and (a3) 0-5 mol% of sulfonate group containing compounds; (B) a diol component selected from at least one 2-12C alkanediol and at least one 5-10C cycloalkanediol or their mixtures, and optionally one or more components selected from: (C) a component selected from (c1) at least one ether function containing dihydroxy compound of formula (I). HO-((CH2)n-O)m-H (I) HO-(-C(O)-G-O-)pH (IIa) n = 2,3, or 4, and m = 2-250, (c2) at least one hydroxycarboxylic acid of formula (IIa) or (IIb): p = 1-1500, r = 1-4, and G = a residue selected from phenylene, -(H2)q-, where q = 1-5, -C(R)H-, and -C(R)HCH2, where R = Me or Et, (c3) at least one 2-12C aminoalkanol or at least one 5-10C aminocycloalkanol, or their mixtures, (c4) at least one 1-8C aminoalkane, (c5) at least one 2,2-bisoxazoline of formula (III): where R = a single compound, (CH2)z alkylene, where z = 2,3, or 4, or phenylene, (c6) at least one aminocarboxylic acid selected from a group consisting of natural amino acids, polyamides of maximum molecular weight 18000 g/mole, obtainable by polycondensation of a 4-6C dicarboxylic acid and a 4-10C diamine, compounds of formula (IVa): and IVb): where s = 1-1500, t = 1-4, and T = a residue selected from phenylene, -(CH2)n-, where n = 1-12, -C(R )H-, and -C(R )HCH2, where R = Me, Et, or polyoxazoline with the recurring unit (V): where R = H, 1-6C alkyl, 5-8C cycloalkyl, optionally substituted with 1-4X alkyl up to 3-fold substituted with phenyl or = tetrahydrofuryl, or mixtures of (c1) to (c6); (D) a component selected from: (d1) at least one compound with at least 3 ester forming groups, (d2) at least one isocyanate, (d3) at least one divinylether, or mixtures of (d1) to (d3). An Independent claim is included for bristles obtainable by biological degradation of polyesters.

    BIODEGRADABLE POLYESTER MIXTURE
    26.
    发明专利
    BIODEGRADABLE POLYESTER MIXTURE 未知

    公开(公告)号：CA2533481C

    公开(公告)日：2012-04-24

    申请号：CA2533481

    申请日：2004-08-04

    Applicant: BASF AG

    Inventor： YAMAMOTO MOTONORI ,  HEUFEL DIETMAR ,  STARKE DIRK ,  WITT UWE ,  SKUPIN GABRIEL

    IPC: C08L67/00 ,  C08F291/00 ,  C08K5/092 ,  C08K5/1515 ,  C08L1/02 ,  C08L3/02 ,  C08L3/04 ,  C08L63/00 ,  C08L97/00 ,  C08L97/02 ,  C08L99/00

    Abstract: The invention relates to biodegradable polyester mixtures comprising: between 5 and 80 wt. %, in relation to the total weight of the constituents i to ii, of at least one polyester based on aliphatic and aromatic dicarboxylic acids and aliphatic dihydroxy compounds (constituent i); between 20 and 95 wt. %, in relation to the total weight of the constituents i to ii, of at least one renewable raw material (constituent ii); and between 0.1 and 15 wt. %, in relation to the total weight of the constituents i to ii, of a constituent iii that is suitable for forming covalent bonds both with constituent i and with constituent ii. The invention also relates to methods for producing biodegradable polyester mixtures, the use of biodegradable polyester mixtures for producing blends, moulded parts, films or fibres, in addition to blends, moulded parts, films or fibres comprising biodegradable polyester mixtures.

    BIODEGRADABLE POLYESTER MIXTURE
    27.
    发明专利
    BIODEGRADABLE POLYESTER MIXTURE 未知

    公开(公告)号：CA2533481A1

    公开(公告)日：2005-02-24

    申请号：CA2533481

    申请日：2004-08-04

    Applicant: BASF AG

    Inventor： WITT UWE ,  SKUPIN GABRIEL ,  STARKE DIRK ,  HEUFEL DIETMAR ,  YAMAMOTO MOTONORI

    IPC: C08L67/00 ,  C08F291/00 ,  C08K5/092 ,  C08K5/1515 ,  C08L1/02 ,  C08L3/02 ,  C08L3/04 ,  C08L63/00 ,  C08L97/00 ,  C08L97/02 ,  C08L99/00

    Abstract: The invention relates to biodegradable polyester mixtures comprising: betwee n 5 and 80 wt. %, in relation to the total weight of the constituents i to ii, of at least one polyester based on aliphatic and aromatic dicarboxylic acids and aliphatic dihydroxy compounds (constituent i); between 20 and 95 wt. %, in relation to the total weight of the constituents i to ii, of at least one renewable raw material (constituent ii); and between 0.1 and 15 wt. %, in relation to the total weight of the constituents i to ii, of a constituent i ii that is suitable for forming covalent bonds both with constituent i and with constituent ii. The invention also relates to methods for producing biodegradable polyester mixtures, the use of biodegradable polyester mixture s for producing blends, moulded parts, films or fibres, in addition to blends, moulded parts, films or fibres comprising biodegradable polyester mixtures.

    28.
    发明专利
    未知

    公开(公告)号：DE50009227D1

    公开(公告)日：2005-02-17

    申请号：DE50009227

    申请日：2000-05-03

    Applicant: BASF AG

    Inventor： BRAUN FRANK ,  GLUECK GUISCARD ,  HAHN KLAUS ,  WITT UWE ,  DE GRAVE ISIDOOR

    IPC: C08J9/18

    Abstract: In a process for preparing expanded or expandable polymer beads based on biodegradable saturated polyesters made from at least one diol and from at least one dicarboxylic acid,A. polymer pellets are dispersed in a liquid,B. a volatile blowing agent is injected into the dispersion and made to impregnate the pellets at an elevated temperature,C. the pressure on the dispersion is reduced at an elevated temperature, whereupon the pellets comprising blowing agent expand to give foam, and, respectively,D. the pellets are isolated from the liquid.

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