21.
    发明专利
    未知

    公开(公告)号:ES2109092T3

    公开(公告)日:1998-01-01

    申请号:ES95908266

    申请日:1995-02-06

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP95/00418 Sec. 371 Date Aug. 15, 1996 Sec. 102(e) Date Aug. 15, 1996 PCT Filed Feb. 6, 1995 PCT Pub. No. WO95/22627 PCT Pub. Date Aug. 24, 1995Leather and skins are water repellent in aqueous emulsion in the presence of emulsifiers with polysiloxanes which are functionalized with carboxyl groups in a comb-like manner and in which the carboxyl groups are bonded to the polymer main chain via spacer groups in the form of linear or branched C2-C40-alkylene groups which may be interrupted by up to 8 non-neighboring oxygen atoms or groups of the formula -NR1-, CO- [sic] or -CO-NR1- and in addition may carry up to 5 carboxyl groups or carboxamido groups of the formula -CO-NR1R2-, where R1 and R2 are each hydrogen or C1-C4-alkyl, the spacer groups being bonded to the polymer main chain via a direct bond or via an oxygen atom or a group of the formula -NR1-, -CO-, -CO-NR1- or -CO-O-.

    22.
    发明专利
    未知

    公开(公告)号:ES2108289T3

    公开(公告)日:1997-12-16

    申请号:ES93915893

    申请日:1993-07-13

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP93/01831 Sec. 371 Date Mar. 3, 1994 Sec. 102(e) Date Mar. 3, 1994 PCT Filed Jul. 13, 1993 PCT Pub. No. WO94/02650 PCT Pub. Date Feb. 3, 1994Soft leathers with a pleasant hand are obtained on fatliquoring and filling leather and fur skins with water-soluble or water-dispersible graft polymers of vegetable and animal oils, obtainable by radically initiated polymerization A) of a monomer or monomer mixture comprising (a) from 20 to 100% by weight of monoethylenically unsaturated carboxylic acids and/or monoethylenically unsaturated sulfonic acids and/or monoethylenically unsaturated phosphonic acids or their alkali metal, alkaline earth metal or ammonium salts, (b) from 0 to 80% by weight of other monoethylenically unsaturated monomers which are copolymerizable with the monomers (a), and (c) from 0 to 5% by weight of at least doubly ethylenically unconjugatedly unsaturated monomers in the presence of B) vegetable and/or animal oils in a weight ratio of A:B of (80-1):(20-99).

    24.
    发明专利
    未知

    公开(公告)号:DE59305160D1

    公开(公告)日:1997-02-27

    申请号:DE59305160

    申请日:1993-05-12

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP93/01171 Sec. 371 Date Oct. 21, 1994 Sec. 102(e) Date Oct. 21, 1994 PCT Filed May 12, 1993 PCT Pub. No. WO93/23363 PCT Pub. Date Nov. 25, 1993.The invention relates to a process for preparing beta -alaninediacetic acid (Ia) or its alkali metal or ammonium salts (Ib) which comprises reacting iminodiacetic acid with acrylonitrile or C1-C4-alkyl acrylates in weakly acid to weakly basic aqueous medium and subsequently hydrolyzing the nitrile or ester moiety to the acid or a salt. The products prepared according to the invention can be used, in particular, to form complexes.

    26.
    发明专利
    未知

    公开(公告)号:ES2174322T3

    公开(公告)日:2002-11-01

    申请号:ES97951194

    申请日:1997-11-13

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP97/06348 Sec. 371 Date Jul. 16, 1999 Sec. 102(e) Date Jul. 16, 1999 PCT Filed Nov. 13, 1997 PCT Pub. No. WO98/21369 PCT Pub. Date May 22, 1998Specific carboxyamide-polysiloxanes of the formula IV or the formula IVa having a carboxyl content of from 0.02 to 1.0 mmol/g and an average molar mass (number average) [Mn] in the range from 2x103 to 60x103 g/mol are used for hydrophobicizing materials of fibrous structure, especially leather or fur skins.

    28.
    发明专利
    未知

    公开(公告)号:ES2136390T3

    公开(公告)日:1999-11-16

    申请号:ES96906734

    申请日:1996-03-04

    Applicant: BASF AG

    Abstract: Aqueous solutions or aqueous emulsions of copolymers are obtainable by copolymerization of(a) from 20 to 95 mol % of at least one monoethylenically unsaturated C4-C12-dicarboxylic acid or the anhydride thereof with(b) from 5 to 80 mol % of at least one branched oligomer or polymer which has a vinyl, vinylidene or alkylvinylene terminal group and is of at least 9 carbon atoms and(c) from 0 to 50 mol % of at least one further monoethylenically unsaturated compound which is copolymerizable with the monomers (a) and (b)and contain from 0.5 to 70% by weight, based on the total amount of the solutions or emulsions, of these copolymers. These copolymer solutions or emulsions are suitable as leather assistants and as dispersants for pigments.

    30.
    发明专利
    未知

    公开(公告)号:BR9708491A

    公开(公告)日:1999-08-03

    申请号:BR9708491

    申请日:1997-03-27

    Applicant: BASF AG

    Abstract: Aqueous solutions or dispersions of copolymers obtainable by free-radical copolymerization of(a) from 20 to 90% by weight of at least one monoethylenically unsaturated C4-6-dicarboxylic acid or the anhydride thereof, as component A,(b) from 5 to 50% by weight of at least one olefin having 2 to 6 carbon atoms, as component B,(c) from 5 to 50% by weight of at least one hydrophobic comonomer from the group consisting of long-chain olefins, esters of long-chain alcohols with acrylic acid or methacrylic acid, long-chain amides of acrylic acid or methacrylic acid, and long-chain alkyl vinyl ethers, as component C,(d) from 0 to 40% by weight of further comonomers which can be copolymerized with the above monomers, as component D,where the sum of the amounts of components A, B, C and, if used, D is 100% by weight, followed by at least partial esterification or hydrolysis and neutralization and/or reaction of the carboxyl groups formed during the hydrolysis with bases, for treating leather and/or fur skins.

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