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    1.
    发明专利
    未知

    公开(公告)号：DE4224456A1

    公开(公告)日：1994-01-27

    申请号：DE4224456

    申请日：1992-07-24

    Applicant: BASF AG

    Inventor： BIRKHOFER HERMANN DR ,  DANISCH PETER ,  DENZINGER WALTER ,  HARTMANN HEINRICH DR ,  KNEIP MICHAEL DR

    IPC: C14C9/00 ,  C14C9/02

    Abstract: The invention relates to the use of water-soluble or dispersible graft polymers of vegetable and animal oils, obtainable by the radically initiated polymerisation A) of a monomer or monomer mixture of (a) 20 to 100 wt % monoethylenically unsaturated carboxylic acids and/or monoethylenically unsaturated sulphonic acids and/or monoethylenically unsaturated phosphonic acids or their alkaline, alkaline earth or ammonium salts, (b) 0 to 80 wt % other monoethylenically unsaturated monomers which can be copolymerised with monomers (a), and (c) 0 to 5 wt % at least double-ethylenic unconjugated unsaturated monomers, in the presence of B) vegetable and/or animal oils, in the weight ratio of A:B of (80 to 1):(20 to 99) to stuff and full leathers and fur pelts. This provides soft leathers with a pleasant feel.

    Pigment formulation giving good printing properties - contg. di: or poly:isobutenyl-succinic bis:amide and/or bis:ester
    2.
    发明专利
    Pigment formulation giving good printing properties - contg. di: or poly:isobutenyl-succinic bis:amide and/or bis:ester 未知

    公开(公告)号：DE3913667A1

    公开(公告)日：1991-01-24

    申请号：DE3913667

    申请日：1989-04-26

    Applicant: BASF AG

    Inventor： JESSE JOACHIM DR ,  OPPENLAENDER KNUT DR ,  GOUSETIS CHARALAMPOS DR ,  BIRKHOFER HERMANN DR ,  GONZALEZ GOMEZ JUAN ANTONIO DR ,  GUENTHERT PAUL DR

    IPC: C09B67/20

    Abstract: Pigment formulation contains finely-divided pigment(s), di- or polyisobutenyl-succinic acid bis-ester(s) and/or bis-amide(s) of formula Z-CO-CH(R)-CH2-CO-Z (I) and opt. conventional additives: R = diisobutenyl or polyisobutenyl with 3-20 isobutenyl units; Z = -NR1R2 (II) -NR2((CH2)m-NH)n-R3 (III) or -O-R6 (V); R1 = 3-72C alk(en)yl or 4-8C cycloalkyl; R2 = 1-72C alkyl, 3-72C alkenyl or 5-8C cycloalkyl; R3 = H, 1-20C alkyl or 3-20C alkenyl; R4 and R5 independently = H, 1-20C alkyl or 3-30C alkenyl; m = 2-6; n = 1-6; o = 0-5; and p = 1-5; such that (p ; o) = 1-5; R6 = 1-30C alk(en)yl, 5-10C cycloalkyl or gp. derived from adducts of 2-4C alkylene oxides on 1-15C alkanols, 2-10C alkandiols or 3-6-hydric aliphatic alcohols or from poly-2-4 C-alkylene oxides, phenols or their EO adducts; or -NR1R2 = a satd. 6-membered heterocycle, opt. contg. O or N in the ring; or -NR4R5 = -NH-CO-R8; R8 = 8-72C alkyl. USE/ADVANTAGE - (I) cause a considerable improvement in the coloristic, rheological and printing properties and yield printing inks or stock pastes with good flow, which give highly transparent, high gloss prints. They have a synergistic effect with other dispersants and often reduce bronzing.

    Leather mfr. with reduced chemical consumption and amt. of waste liquor
    3.
    发明专利
    Leather mfr. with reduced chemical consumption and amt. of waste liquor 未知

    公开(公告)号：DE4430290A1

    公开(公告)日：1996-02-29

    申请号：DE4430290

    申请日：1994-08-26

    Applicant: BASF AG

    Inventor： BIRKHOFER HERMANN DR ,  BRETH MANFRED ,  MOSER ERWIN ,  WOLF GERHARD DR ,  CARLE JUERGEN

    IPC: C14C3/04 ,  C14C3/16 ,  C14C3/08

    Abstract: Prodn. of leather and hides involves: (a) pretanning with an aldehyde tanning agent (I); and (b) retanning with a mineral tanning agent, with omission of the defatting, pickling, deliming and neutralisation steps. The novelty is that (I) comprises 2-8C aliphatic, 8-14C aromatic or 9-16C araliphatic dialdehyde, 2-8C aliphatic monobasic aldehydocarboxylic acid, 3-10C aliphatic mono- or di-basic keto-carboxylic acid, their acetals with 1-10C aliphatic mono- or dihydric alcohols, opt. reacted with 1-50 mole ethylene oxide and/or propylene oxide/OH gp., or mixts. of these cpds. (I) esp. is 2-4C aliphatic dialdehyde(s) and/or their acetal(s).

    6.
    发明专利
    未知

    公开(公告)号：DE4402029A1

    公开(公告)日：1995-07-27

    申请号：DE4402029

    申请日：1994-01-25

    Applicant: BASF AG

    Inventor： BIRKHOFER HERMANN DR ,  KNEIP MICHAEL DR ,  DANISCH PETER ,  DENZINGER WALTER ,  KISTENMACHER AXEL DR ,  HARTMANN HEINRICH DR

    IPC: C14C9/00 ,  C08F220/18 ,  C08F222/06 ,  C08J3/03 ,  C09K23/22 ,  C09K23/42 ,  C14C9/02 ,  C08L35/00 ,  C08L23/02 ,  C08L29/10 ,  C08L33/06 ,  C08L31/04 ,  C08L33/02 ,  C08L35/02 ,  C08K5/04 ,  B01F17/42 ,  B01F17/22

    Abstract: Aqueous solutions or dispersions of copolymers obtainable by the radical copolymerisation of A ) 50 to 60 mol% C6 to C40 mono-olefines or C6 to C40 alkyl vinyl ethers or mixtures of C6 to C40 alkyl vinyl ethers and up to 50 mol%, in relation to the entire quantity of the component A , C6 to C40 mono-olefines with B ) 60 to 40 mol% of monoethylenically unsaturated C4-C8 dicarboxylic acid anhydrides, or by the radical copolymerisation of A ) 50 to 90 wt % C6 to C40 alkyl acrylates or methyl acrylates or vinyl esters of C6 to C40 carboxylic acids or mixtures thereof with B ) 10 to 50 wt % of monoethylenically unsaturated C3 to C12 carboxylic acids, monoethylenically unsaturated C4 to C12 dicarboxylic acid anhydrides, semi-ester or semi-amides of monoethylenically unsaturated C4 to C12 dicarboxylic acids, amides of monoethylenically unsaturated C3 to C12 carboxylic acids or mixtures thereof, to form copolymers with molar masses of 500 to 30,000 whereby the carboxyl groups present in an aqueous medium are at least partly neutralised and part of the carboxyl groups may be amidated, and which are characterised by an emulsifier content of 0.5 to 40 wt % in relation to the quantity of copolymer. These aqueous solutions or dispersions are suitable for stuffing and fulling leathers and fur pelts.

    Use of alkanolamine ester(s) of boric acid - in deliming in leather prodn. reducing evolution of hydrogen sulphide
    7.
    发明专利
    Use of alkanolamine ester(s) of boric acid - in deliming in leather prodn. reducing evolution of hydrogen sulphide 未知

    公开(公告)号：DE4215389A1

    公开(公告)日：1993-11-18

    申请号：DE4215389

    申请日：1992-05-11

    Applicant: BASF AG

    Inventor： BIRKHOFER HERMANN DR ,  WEGNER BRIGITTE DR ,  OPPENLAENDER KNUT DR ,  GUENTHER WOLFGANG DR ,  MOHR JUERGEN DR

    IPC: C14C1/08 ,  C07F5/04

    Abstract: Boric acid alkanolamine esters of formula B(OR)3 are used for deliming in leather prodn. R = H or gp. of formula (alkylene-O)n-(C(R1)H)m-NR2R3, or 2 R gps. together form gp. of formula (alkylene1)2 N-R3, or 3 R gps. together form gp. of formula -(alkylene1)3-N and at least 1 R is not H; alkylene is 2-6C; alkylene1 is 2-3C; R1 = H, Me or Et; R2 = H, 1-4C alkyl or Ph; R3 = H or 1-4C alkyl; n = 0-6; m = 2-10. ADVANTAGE - Evolution of H2S during deliming is limited. In an example, (A) a mixt. of 149g of tiethanolamine and 62g of orthoboric acid was heated at 80-83 deg. C, with removal of water at 25 mbars. The yield of triester was almost quantitative. (B) 100 pts. of steeped, delimed oxhide was soaked in a 50% bath contg 2% of the ester from (A), at 30 deg. C. After 30 mins., the pH was 8.9 and the H2S concn. was 140 ppm. After a further 60 mins., the hide was delimed, the H2S concn. was O and the pH was 9.2. The hides were clean and bright. Further treatment gave a soft, evenly dyed leather with very fine grain.

    9.
    发明专利
    未知

    公开(公告)号：DE59303478D1

    公开(公告)日：1996-09-26

    申请号：DE59303478

    申请日：1993-06-08

    Applicant: BASF AG

    Inventor： GREIF NORBERT DR ,  OPPENLAENDER KNUT DR ,  BIRKHOFER HERMANN DR ,  WEGNER BRIGITTE DR ,  DIX JOHANNES PETER DR

    IPC: C07D309/10 ,  C14C3/08 ,  C14C3/26

    Abstract: The invention relates to a process for tanning leather by using compounds of the general formula I where m is 0 or 1 and the radicals R are independently of each other C1-C18-alkyl, which may be substituted by hydroxyl or carboxyl and/or interrupted by oxygen atoms, or else one of the radicals R is a radical of the formula where R is alkylene, which may be substituted by hydroxyl and/or interrupted by oxygen atoms.

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