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    12.
    发明专利
    未知

    公开(公告)号：ES2086620T3

    公开(公告)日：1996-07-01

    申请号：ES92120002

    申请日：1992-11-25

    Applicant: BASF AG

    Inventor： LICHT ULRIKE DR ,  HAEBERLE KARL DR ,  GULBINS ERICH DR ,  RAU GYOPAR MARIA DR ,  FRANZMANN GERNOT DR ,  PORTUGALL MICHAEL DR

    IPC: C08G18/00 ,  C08G18/08 ,  C08G18/42 ,  C08G18/75 ,  C09D175/06 ,  C09J175/00 ,  C09J175/06

    Abstract: Aqueous dispersions containing a polyurethane essentially built up from a) organic polyisocyanates and optionally secondary amounts of monoisocyanates, b) dihydroxyl compounds having a molecular weight of from above 500 to 10000 g/mol and containing at least 2 carboxyl or carboxylate groups in the molecule, which are obtainable by reacting dihydroxyl compounds with tetracarboxylic dianhydrides in a molar ratio of from 2:1 to 1.05:1, c) optionally polyhydroxyl compounds having a molecular weight of from above 500 to 5000 g/mol, other than (b), d) optionally compounds containing at least one group which is reactive towards isocyanates and at least one group which is anionic or can be converted into an anionic group, having a molecular weight of from 60 to 500 g/mol, e) optionally, compounds other than d) and e) containing at least 2 groups which are reactive towards isocyanates, having a molecular weight of from 60 to 500 g/mol. l

    13.
    发明专利
    未知

    公开(公告)号：ES2082663T3

    公开(公告)日：1996-03-16

    申请号：ES94103957

    申请日：1994-03-15

    Applicant: BASF AG

    Inventor： BOTT KASPAR DR ,  BAUER GERHARD DR ,  HAEBERLE KARL DR

    IPC: C07C271/64 ,  C08F20/60 ,  C09D133/24 ,  C09J133/24 ,  C07C271/18

    Abstract: Copolymerisable oxime ethers of the general formula in which A is a divalent connecting link, R and R independently of one another are a C1- to C10-alkyl radical, a C1- to C10-alkoxy radical, a C5- to C10-cycloalkyl radical or a C5- to C10-aryl radical, which can also contain 1 - 3 non-adjacent nitrogen, oxygen or sulphur atoms as hetero atoms in the carbon chain or the carbon ring and can be substituted by one to three C1- to C4-alkyl or alkoxy groups, R or R can be a hydrogen atom or R and R together form a bridge of 3 to 14 carbon atoms, some of the carbon atoms also being able to be part of an aromatic ring, Z is an n-valent organic radical which contains a copolymerisable ethylenically unsaturated group, and n is an integer from 1 to 3.

    17.
    发明专利
    未知

    公开(公告)号：DE59109137D1

    公开(公告)日：1999-08-12

    申请号：DE59109137

    申请日：1991-01-25

    Applicant: BASF AG

    Inventor： WEYLAND PETER DR ,  HAEBERLE KARL DR ,  TREIBER REINHARD

    IPC: C08G18/00 ,  C08G18/08 ,  C08G18/48 ,  C08G18/65 ,  C08G18/66 ,  C14C11/00

    Abstract: Aqueous polyurethane preparations which contain from 10 to 60% by weight of at least one polyurethane A which is built up from a) at least one organic diisocyanate or a mixture of organic isocyanates which has an arithmetic mean NCO functionality of from 1.9 to 2.3 [monomers I], b) at least one dihydric polyether alcohol having a number average molecular weight of from 500 to 5000 or a mixture of polyether alcohols having a number average molecular weight of from 500 to 5000 and having an arithmetic mean functionality of alcoholic OH groups of from 1.6 to 2.3 [monomers II], c) at least one alcohol containing 1 to 3 alcoholic OH groups and at least one ionogenic group [monomers III], d) no, one or more dihydric alcohols having a number average molecular weight of from 62 to 499 or a mixture of alcohols having a number average molecular weight of from 62 to 499 and having an arithmetic mean functionality of alcoholic OH groups of from 1.9 to 2.3 [monomers IV], e) no, one or more monohydric polyether alcohols [monomers V], and f) no, one or more polyamines containing at least two N-H groups [monomers VI], with the proviso that the amounts of incorporated monomers I to VI are such that the OH/NCO equivalent ratio for the incorporated monomers II/monomers I is from 0.2 to 0.6, for the monomers III/monomers I is from 0.2 to 0.8, for the monomers IV/monomers I is from 0 to 0.2, and for the monomers V/monomers I is from 0 to 0.2, and the -N-H/NCO equivalent ratio of the incorporated monomers VI/monomers I is from 0 to 0.1, that the arithmetic mean functionality of all the incorporated monomers I to monomers V, determined via the sum of the NCO groups of the monomers I and the alcoholic OH groups of the monomers II to monomers V, is from 1.8 to 2.3, that the NCO/(OH + N-H) equivalent ratio for the incorporated monomers I, the OH groups of the incorporated monomers II to monomers V and the N-H groups of the incorporated monomers VI is from 0.9 to 1.0 and, in the case of the additional incorporation of monomers VI, the NCO/OH equivalent ratio for the incorporated monomers I and the sum of the incorporated monomers II to monomers V is at the same time greater than 1, that the monomers II have a degree of ethoxylation of less than 30% by weight, that the monomers V have a degree of ethoxylation of at least 40% by weight, and that from 0.05 to 2 mmol of the ionogenic groups of the incorporated monomers III per gram of polyurethane A in the aqueous preparation are in ionised form. These aqueous polyurethane preparations are suitable as primers (bottom coats) for finishes (dressings) on greased (oiled) and/or waterproofed leathers.

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