Composition useful for labelling biologically degradable polymers contains biologically degradable polymer and fluorescent dye

    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

    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)

    18.
    发明专利
    未知

    公开(公告)号:DE10336387A1

    公开(公告)日:2005-03-03

    申请号:DE10336387

    申请日:2003-08-06

    Applicant: BASF AG

    Abstract: The present invention relates to biodegradable polyester mixtures comprising from 5% to 80% by weight, based on the total weight of components i to ii, of at least one polyester based on aliphatic and aromatic dicarboxylic acids and an aliphatic dihydroxy compound (component i) and from 20% to 95% by weight, based on the total weight of components i to ii, of at least one renewable raw material (component ii) and from 0.1% to 15% by weight, based on the total weight of components i to ii, of a component iii which is capable of forming covalent bonds with both component i and component ii. The present invention further relates to processes for producing biodegradable polyester mixtures, to the use of biodegradable polyester mixtures for producing blends, moldings, films, sheets or fibers and also to blends, moldings, films, sheets or fibers comprising biodegradable polyester mixtures.

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