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    41.
    发明专利
    未知

    公开(公告)号：AT116377T

    公开(公告)日：1995-01-15

    申请号：AT90117145

    申请日：1990-09-06

    Applicant: BASF AG

    Inventor： SCHAFFER ORTWIN DR ,  BAY HERBERT DR ,  STORK KARL DR ,  GREIF NORBERT DR ,  OPPENLAENDER KNUT DR ,  DENZINGER WALTER ,  HARTMANN HEINRICH DR

    IPC: C08L33/04 ,  C08L33/06 ,  C09K3/18 ,  C14C9/00

    Abstract: Use of copolymers that contain as copolymerised units …… a) from 50 to 90 % by weight of C8-C40-alkyl (meth)acrylates, vinyl esters of C8-C40-carboxylic acids or mixtures thereof and … b) from 10 to 50 % by weight of monoethylenically unsaturated C3-C12-carboxylic acids, monoethylenically unsaturated dicarboxylic anhydrides, monoesters or monoamides of monoethylenically unsaturated C4-C12-dicarboxylic acids, amides of C3-C12-monocarboxylic acids or mixtures thereof and have molecular weights of from 500 to 30,000 g per mole, in at least partially neutralised form in aqueous solution or in aqueous dispersion for waterproofing leathers and fur pelts. …

    Water-soluble condensn. prods. prepn. for tanning agents - by partial oxidn. of glyoxal using excess nitric acid, then reaction with melamine, dicyandiamide, or (thio) urea and condensable cpds. etc.
    45.
    发明专利
    Water-soluble condensn. prods. prepn. for tanning agents - by partial oxidn. of glyoxal using excess nitric acid, then reaction with melamine, dicyandiamide, or (thio) urea and condensable cpds. etc. 未知

    公开(公告)号：DE4140899A1

    公开(公告)日：1993-06-17

    申请号：DE4140899

    申请日：1991-12-12

    Applicant: BASF AG

    Inventor： REUTHER WOLFGANG DR ,  WEISER JUERGEN DR ,  SCHAFFER ORTWIN DR

    IPC: C08G12/02 ,  C08G14/04 ,  C14C3/18

    Abstract: Prepn. (A) comprises partially oxidising aq. glyoxal using nitric acid to give (B) which is then reacted with components (A), (C) and (D) to give condensn. prods. (I). (A) is 1 mol. melamine, dicyandiamide, (thio)urea or a mixt., (B) is 0.5-12 mols. (w.r.t. total molar amt. of components (B)) mixt. of glyoxylic acid and glyoxal in the molar ratio of 5:95-95:5, (C) is 0-3 mols. condensable cpd. contg. at least one phenolic or alcohol hydroxy gp., and (D) is 0-3 mols. condensable cpd. contg. an amido or amino gp. or an alkali metal or ammonium salt. Pref. 30-70 wt.% HNO3 is used in the partial oxidn. of glyoxal at 40-90 deg.C. USE/ADVANTAGE - (I) are useful as leather tanning agents (claimed). Also claimed is a process using (I) as tanning agents. The prepn. of (I) is a cheap, simple reproducible process. In an example, 1.04 g. sodium nitrite was added to 435 g. aq. glyoxal (40 wt.%) and the obtd. soln. was heated to 70 deg.C with 128 g. HNO3 (65 wt.%) being added over 5 hrs. THe soln. was then heated for 12 hrs. at 90 deg.C and then cooled to 60 deg.C. 63 g. melamine were added and the soln. was stirred for 1 hr. at 60 deg.C to give a clear, light-yellow soln. which was then spray dried (160-100 deg.C) to give 232 g. white powder. The powder was found to contain 2.60 mMol/g. glyoxylic acid, 2.60 glyoxal, 0.20 oxalic acid, 0.12 formic acid and 0.03 nitrat

    47.
    发明专利
    未知

    公开(公告)号：DE3926168A1

    公开(公告)日：1991-02-14

    申请号：DE3926168

    申请日：1989-08-08

    Applicant: BASF AG

    Inventor： SCHAFFER ORTWIN DR ,  BAY HERBERT DR ,  STORK KARL DR ,  GREIF NORBERT DR ,  OPPENLAENDER KNUT DR ,  DENZINGER WALTER ,  HARTMANN HEINRICH DR

    IPC: C08F8/32 ,  C08F8/44 ,  C08F16/16 ,  C08F216/16 ,  C08F220/04 ,  C08F222/06 ,  C14C9/00

    Abstract: PCT No. PCT/EP90/01283 Sec. 371 Date Feb. 10, 1992 Sec. 102(e) Date Feb. 10, 1992 PCT Filed Aug. 6, 1990 PCT Pub. No. WO91/02094 PCT Pub. Date Feb. 21, 1991.Copolymers which are obtainable by free radical copolymerization of (a) C8-C40-alkyl vinyl ethers, if necessary as a mixture with not more than 50 mol % of C8-C40-monoolefins, with (b) ethylenically unsaturated C4-C8-dicarboxylic anhydrides at from 80 degrees to 300 degrees C. to give copolymers having molecular weights of from 500 to 20,000 g/mol, subsequent solvolysis of the anhydride groups of the copolymers and partial or complete neutralization of the carboxyl groups formed during the solvolysis, in an aqueous medium by means of a base, and which are present in the form of aqueous dispersions or solutions, are used as agents for imparting water repellency to leathers and skins.

    REACTIVE DYES
    48.
    发明专利
    REACTIVE DYES 未知

    公开(公告)号：DE3564128D1

    公开(公告)日：1988-09-08

    申请号：DE3564128

    申请日：1985-05-30

    Applicant: BASF AG

    Inventor： SCHAFFER ORTWIN DR ,  PATSCH MANFRED DR

    IPC: C09B62/01 ,  C09B62/03 ,  C09B62/04 ,  C09B62/09 ,  C09B62/25 ,  C09B62/44 ,  C09B62/513 ,  D06P3/10 ,  D06P3/66

    Abstract: Novel compounds of the general formula I I where A is a fiber-reactive radical of the triazine, pyrimidine or vinylsulfone series, D is a radical of a sulfo-containing diazo component of the aniline or aminonaphthalene series, K is the radical of a coupling component of the aminohydroxynaphthalene series, X is fluorine, chlorine, bromine, C1-C4-alkyl, trifluoromethyl, C1-C4-alkoxy, phenoxy, hydroxysulfonyl, carboxyl, acetyl, propionyl, methylsulfonyl, ethylsulfonyl, phenylsulfonyl, C1-C4-alkoxycarbonyl, phenoxysulfonyl or unsubstituted or substituted carbamyl or sulfamyl, and Y is fluorine, chlorine, bromine, C1-C4-alkyl, trifluoromethyl, C1-C4-alkoxy, phenoxy, phenoxysulfonyl, acetyl, propionyl, methylsulfonyl, ethylsulfonyl, phenylsulfonyl, p-acetylaminophenylsulfonyl, hydroxysulfonyl, C1-C4-alkoxycarbonyl, hydroxycarbonyl or unsubstituted or substituted carbamyl or sulfamyl, are very useful for dyeing wool and hydroxyl-containing fibers, such as cellulose and in particular cotton.

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