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    DISPERSIONS CONTAINING POLYURETHANES HAVING CARBONYL GROUPS IN KETO FUNCTION
    14.
    发明专利
    DISPERSIONS CONTAINING POLYURETHANES HAVING CARBONYL GROUPS IN KETO FUNCTION 未知

    公开(公告)号：CA2219835A1

    公开(公告)日：1998-05-21

    申请号：CA2219835

    申请日：1997-11-20

    Applicant: BASF AG

    Inventor： GYOPAR RAU MARIA ,  FISCHER GERHARD ,  GULBINS ERICH ,  KOKEL NICOLAS

    IPC: C08G18/08 ,  C08G18/38 ,  C08G18/84 ,  C09D11/102 ,  C08L75/04 ,  C09D175/04

    Abstract: Aqueous dispersions containing a polyurethane(A) having structural units derived from compounds of the formula (I) (see fig. I) in which the substituents have the following meanings: R1, R2, R3 independently denote hydrogen, C1-C24 alkyl or C6-C24 alkenyl R4 denotes hydrogen R5, R6 (a) together denote C4-C10 alkanediyl, (b) each denotes C2-C10 alkyl, C5-C8 cycloalkyl or C7-C20 aralkyl, (c) each denotes a hydroxyl-terminated poly(C2-C4 alkylene oxide), or (d) one radical R5 or R6 has the meaning stated under (a) to (c) and the other is hydrogen or a radical of the formula II (see fig. II) in which X denotes C2-C6 alkanediyl and R7 has the same meaning as R5 or R6 except that R7 does not denote a radical of the formula II, where . - the radicals R5 and R6 in each of the cases (a) and (d) carry a total of one (1 ) hydroxyl group attached to an aliphatic carbon atom, - optionally the radical R5 and/or R6 carries 1 or 2 hydroxyl groups bonde d to an aromatic carbon atom or one nitrile, tertiary amino, carboxylic acid or sulfonic acid group which are optionally present in the form of their salts, and - the average functionality (F) of all structural components of the polyur ethane (A) is from 1.5 to 2.2, based on the functionalities which interreact during the synthesis of the polyurethane (A) in an addition reaction.

    15.
    发明专利
    未知

    公开(公告)号：DE59800994D1

    公开(公告)日：2001-08-16

    申请号：DE59800994

    申请日：1998-04-02

    Applicant: BASF AG

    Inventor： KOKEL NICOLAS ,  MENZEL KLAUS ,  REICH WOLFGANG

    IPC: C09D175/04 ,  C09D175/16

    Abstract: Aqueous dispersions which are essentially free from protective colloids or emulsifiers, comprise, in dispersed form,A. a polyurethane (A) comprising hydrophilic groups, which bring about the water-dispersibility of the polyurethane, this polyurethane (A) being essentially free from C-C double bonds, andB. a prepolymer having a content of from 0.1 to 1 mol of free-radically polymerizable C-C double bonds per 100 g of prepolymer.

    17.
    发明专利
    未知

    公开(公告)号：DE19809634A1

    公开(公告)日：1999-09-09

    申请号：DE19809634

    申请日：1998-03-06

    Applicant: BASF AG

    Inventor： KOKEL NICOLAS ,  HAEBERLE KARL ,  KRAUS RUPERT

    IPC: C07C267/00 ,  C07C271/10 ,  C07C271/20 ,  C07C275/00 ,  C07C275/04 ,  C07C271/06 ,  C07C275/24 ,  C07C269/02 ,  C07C273/18 ,  C08K5/205 ,  C08K5/21 ,  C08K5/29 ,  C08G18/78 ,  C08G18/32 ,  C09K15/16

    Abstract: Carbodiimides which are solid at 25 degrees C, containing carbodiimide structures which are attached to non-aromatic carbon atoms, together with urethane and/or urea structures. Independent claims are also included for: (a) a process for the production of these solid carbodiimides from di-isocyanates in which the isocyanate (NCO) groups are not attached to aromatic carbon, by reaction in presence of catalysts to form the carbodiimide with cleavage of carbon dioxide, followed by reaction with compounds containing at least two NCO-reactive groups; (b) another process in which the above stages are reversed and the ratio of NCO groups to NCO-reactive groups used in the first stage is at least 2:1; (c) solid carbodiimides obtained by these processes; (d) mixtures containing compounds with ester units together with these carbodiimides; and (e) mixtures containing these carbodiimides and at least one of the following: polyurethanes with ester units and/or polycondensation products such as polyesters, e.g. polyethylene- or polybutylene- terephthalate, polyether-esters, polyester-esters, polyester-amides, polycaprolactones, unsaturated polyester resins and polyamides.

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