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    Simultaneously dyeing and finishing leather
    11.
    发明专利
    Simultaneously dyeing and finishing leather 未知

    公开(公告)号：GB998550A

    公开(公告)日：1965-07-14

    申请号：GB1159764

    申请日：1964-03-19

    Applicant: BASF AG

    Inventor： EBEL FRIEDRICH ,  GULBINS KLAUS ,  HAHN ERWIN ,  LANGE GUENTER ,  SCHUBERT RUDOLF ,  WILHELM HANS ,  WOLF HANS ,  WUERTELE LOTHAR

    IPC: D06P3/32

    Abstract: Leather is simultaneously dyed and finished using a coloured polymer in which the dye is bound to the polymer by a covalent bond. The polymer may be obtained by copolymerizing a dye bearing at least one polymerizable olefinically unsaturated group with one or more polymerizable monomers (many listed) or the polymer may be one on to which a copolymerizable dye has been grafted or the polymer may be attached to the dye by way of reactive groups both on the polymer and the dye. The polymers may be in solution or dispersion, preferably aqueous dispersion. The coloured polymers may contain reactive groups, e.g. by using N-methylolacryl- or methacrylamide as a comonomer, through which cross-linking may be effected. The coloured polymers may be applied by brushing, dipping or spraying or in a drum. The so-treated leather may afterwards be glazed or plated. Examples are given. Specifications 877,402, 914,282, 946,472, 964,757 and 965,627 are referred to.

    Simultaneous dyeing and finishing of leather and the dyed leather thus obtained
    14.
    发明专利
    Simultaneous dyeing and finishing of leather and the dyed leather thus obtained 未知

    公开(公告)号：GB1063219A

    公开(公告)日：1967-03-30

    申请号：GB4373565

    申请日：1965-10-15

    Applicant: BASF AG

    Inventor： WUERTELE LOTHAR ,  WILHELM HANS ,  SCHUBERT RUDOLF ,  LANGE GUENTER ,  GULBINS KLAUS

    IPC: D06P3/32

    Abstract: Leather is simultaneously dyed and finished by treatment with an aqueous solution or dispersion comprising (I) a polymer having reactive groups X, (II) one or more dyes having reactive groups Y and, optionally (III) a cross-linking component having at least two reactive groups Z per molecule and allowing the components to react at 20 - 120 DEG C in the presence of an acid or alkaline catalyst, where the number of groups Y is less than the number of X and the amount Y + Z being approximately equal to X, the groups X being possibly alkylated N-methylolamide groups and Y and Z being the same or amino or amido groups or vice versa as complementary pairs. Suitable catalysts are ammonium nitrate or ammonium chloride while numbers of suitable compounds (I), (II) and (III) are specified. The components may be applied together or in sequence by brushing, dipping, spreading, spraying or drumming and the subsequent heating may be carried out in drying chambers or hot grain embossing rolls. Examples are given.

    Production of polysulfonates
    16.
    发明专利
    Production of polysulfonates 未知

    公开(公告)号：GB909367A

    公开(公告)日：1962-10-31

    申请号：GB304361

    申请日：1961-01-26

    Applicant: BASF AG

    Inventor： DEMMLER KURT ,  DISTLER HARRY ,  MILLER FRANZ-FREIDRICH ,  WUERTELE LOTHAR

    IPC: C08G65/34

    Abstract: It is stated that the reaction products of compounds containing 2 or more active hydrogen atoms with vinyl sulphonic esters of polyhydroxy compounds may be used in varnishes or lacquers. In examples 12, 14, 18, 19, and 23-26, metal sheets are coated with solutions of such reaction products, in example 12, with the addition of an epoxy resin, dried at room temperature for 18 hours, 3 days, 1 day, 16 hours, 3 days, 1 day, 1 day and 3 days respectively and cured for 1 hour at 70 DEG C. in Example 12 and at 100 DEG C. in other cases.ALSO:The esters are prepared by reacting at between -50 DEG and +200 DEG C., a vinyl sulphonic acid ester of an organic polyol with an organic compound which contains at least two hydrogen atoms in the molecule, other than as water or alcohol of crystallization or as acidic groups, capable of reacting with the vinyl esters to form polysulphonates, e.g. alkenols, phenols, amines, alkanolamines, amides, imines, bislactams, ureas, thioureas, guanidines, hydrazides, sulphonamides or mercaptans; many compounds are listed. The vinyl sulphonic acid esters may be prepared from aromatic, aliphatic acyclic, or heterocyclic polyols, from hydroxyaryl alkanes, bis(hydroxyaryl) sulphones, bis-(hydroxybenzyl) benzenes, novolacs, and phenol-acrolein condensates. Many specific compounds are listed. In some cases, particularly when polyols or polythiols are used, 0,1 to 10% mol. based on the polyol or polythiol, of a basic-reacting substance may be added as catalyst, e.g. oxides, hydroxides, carbonates, borates and phosphates of alkali and alkaline earth metals; tertiary amines; quaternary ammonium salts which dissociate in hot water; alcoholates and phenolates. When phenols or alkanols are the reactants, the preferred catalyst is the phenolate or alcoholate derived therefrom, which may be prepared in situ, e.g. by addition of KOH or NaOH. Alcoholates of monohydric alcohols also act as chain-stoppers when bifunctional reactants are used, particularly when the active hydrogen atoms are attached to nitrogen atoms. The process may be carried out in solution, in aqueous emulsion, or in suspension, or without the presence of diluents. Suitable solvents are: H2O, butanol, benzene, toluene, methylene chloride, ethylene chloride, chloroform, carbon tetrachloride, or mixtures thereof. Alcohols are not suitable when polyols are being used as reactants. The reaction may be carried out in the presence of compounds which tend to form resins under the same conditions, e.g. epoxides (Example 4) and isocyanates. Polysulphonic esters prepared from nitrogenous compounds and containing excess NH groups may be used to cure epoxy resins (Examples 12, 13). Resins having excess vinyl groups may be cured by resins having excess active hydrogen and vice versa.ALSO:It is stated that the reaction products of vinyl sulphonic esters of polyhydroxy compounds with compounds containing 2 or more active hydrogen atoms may be used to make "expanded porous articles." Example 21 discloses the reaction of 20 parts finely divided carbonate prepared from bis-(4-amino-cyclohexyl)-methane, and 48 parts of resorcinol di-(vinyl sulphonic ester) on heating at 130 DEG C. for 1 hour to give a large-pored, brittle foam.

    DELIMING OF HIDES
    18.
    发明专利
    DELIMING OF HIDES 未知

    公开(公告)号：AU4786179A

    公开(公告)日：1979-12-13

    申请号：AU4786179

    申请日：1979-06-07

    Applicant: BASF AG

    Inventor： HAHN ERWIN ,  LACH DIETRICH ,  MAGERKURTH BERNHARD ,  WUERTELE LOTHAR

    IPC: C14C1/08

    Abstract: A process for deliming hides, in which, instead of using conventional acids or acid salts, esters which hydrolyze under the conventional deliming conditions are employed. This avoids the disadvantages associated with an overdose of conventional deliming agents.

    19.
    发明专利
    未知

    公开(公告)号：DE2825081B1

    公开(公告)日：1979-10-04

    申请号：DE2825081

    申请日：1978-06-08

    Applicant: BASF AG

    Inventor： HAHN ERWIN ,  LACH DIETRICH ,  MAGERKURTH BERNHARD ,  WUERTELE LOTHAR

    IPC: C14C1/08

    Abstract: A process for deliming hides, in which, instead of using conventional acids or acid salts, esters which hydrolyze under the conventional deliming conditions are employed. This avoids the disadvantages associated with an overdose of conventional deliming agents.

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