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    Composition useful for labelling biologically degradable polymers contains biologically degradable polymer and fluorescent dye
    45.
    发明专利
    Composition useful for labelling biologically degradable polymers contains biologically degradable polymer and fluorescent dye 未知

    公开(公告)号：DE19848873A1

    公开(公告)日：2000-04-27

    申请号：DE19848873

    申请日：1998-10-23

    Applicant: BASF AG

    Inventor： WITT UWE ,  SKUPIN GABRIEL ,  DELAVIER PAUL

    IPC: C08J5/00 ,  C08G63/685 ,  C08G63/688 ,  C08K5/00 ,  C08L67/00 ,  C08L101/16 ,  D02G3/02 ,  B07C5/36 ,  C08J3/20

    Abstract: A composition containing: (X) a biologically degradable polymer and (Y) at least one fluorescent dye is new. Independent claims are also included for: (1) An acid component (A) from: (a1) 30-95 mole% of at least one aliphatic or cycloaliphatic dicarboxylic acid, an ester forming derivative, or a mixture of these, (a2) 5-70 mole% of at least one aromatic dicarboxylic acid or an ester forming derivative, or a mixture of these, (a3) 0-5 mole% of a compound containing sulfonate groups; (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-functional 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, G = a residue selected from phenylene, -(CH2)q-, where q = 1-5, -C(R)H-, and -C(R)HCH2, where R = Me or Et, (c3) = at least one 2-12C amino-alkanol or at least one 5-10C-aminocycloalkanol or their mixtures, (c4) = at least one 1-8C diaminoalkane, (c5) = at least one 2,2-bisoxazoline of formula (III): where R = a single compound, a (CH2), with z-alkylene groups, with z = 2,3, or 4, or phenyl, (c6) = at least one aminocarboxylic acid, selected from a group consisting of natural aminoacids, polyamides of maximum molecular weight 18000 g/mol, obtainable by polycondensation of a 4-6C dicarboxylic acid and a 4-10C diamine, compounds of formula IVa and IVb: where s = 1-1500, and t = 1-4, and T = a residue selected from a group consisting of phenylene, -CH2)n-, where n = 1-12, -C(R )H-, and -C(R )HCH2, where R = Me, Et, polyoxazoline with the recurring unit V: where R = H, 1-6C alkyl, 5-8C cycloalkyl, unsubstituted or substituted with 1-4C alkyl up to 3-fold substituted phenyl, or equals tetrahydrofuryl, or mixture of (c1) to (c6); and (D), a component selected from: (d1) at least one compound with at least 3 groups able to form esters , (d2) at least one isocyanate, and (d3) at least one divinylether, or a mixture of (d1) to (d3); (2) a shaped body, film, or fibers obtained from the composition; (3) a process for labelling a biologically degradable polymer (X) involving mixing it with at least one fluorescent dye (Y) in an amount such that a fluorescence is produced which can be detected by a detector when the composition is subjected to electromagnetic radiation; (4) sorting of a compost mill, where the biologically degradable polymer contained in it is detected, loaded into the compost mill, and the unlabelled biologically undegradable polymer is removed from the compost mill. HO-(-C(O)-T-N(N)-)sH (IVa)

    46.
    发明专利
    未知

    公开(公告)号：DE19830389A1

    公开(公告)日：2000-01-13

    申请号：DE19830389

    申请日：1998-07-08

    Applicant: BASF AG

    Inventor： GOETZ WALTER ,  HANELT RAINER ,  SKUPIN GABRIEL

    IPC: A22C13/00 ,  C08J5/18 ,  C08L67/02 ,  C08L67/04 ,  C08L67/00 ,  C08L89/00

    Abstract: The invention relates to the utilization of shaped materials based on at least one biologically degradable polyactide or polyester or the mixtures thereof for producing foils for air-dried or smoked food products. The invention also relates to a method of production of said foils and biaxially oriented and thermofixed tubular films from a shaped material based on at least one biologically degradable polyactide or polyester or the mixtures thereof.

    47.
    发明专利
    未知

    公开(公告)号：DE19704275A1

    公开(公告)日：1998-08-06

    申请号：DE19704275

    申请日：1997-02-05

    Applicant: BASF AG

    Inventor： NIESNER NORBERT DR ,  KNOLL KONRAD DR ,  SKUPIN GABRIEL ,  BEUMELBURG CHRISTOPH

    IPC: B32B27/08 ,  B65B25/00 ,  C08L53/00 ,  C08L53/02 ,  B29C47/12 ,  B65B25/06 ,  B65B31/00 ,  B65B41/00 ,  B65B61/02 ,  B65D65/40 ,  B65D81/18 ,  C08J5/18 ,  C08L25/10

    Abstract: The invention relates to a transparent, stretchable film, especially for modified atmosphere food packaging, comprising at least three levels A,B,C and possibly D, wherein A is composed of a polymer P1 or a mixture of P1 and P2 and P1 is a rubber elastic block copolymer of styrene and a special softening phase of styrene and butadiene; the second layer B is made of a polymer P2 exhibiting a water vapour permeability Pw of less than 8; the third layer C is made of a polymer with an oxygen permeability Po of less than 1000; and optionally a fourth layer D made of a polymer without any limitation of permeability. The invention also relates to the use of the above-mentioned film as food packaging and to a method of packing food in particular, especially one using said film in a standard packing machine.

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