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    • 2. 发明公开
    • VERFAHREN ZUR HERSTELLUNG VON LEDER
    • EP1556523A2
    • 2005-07-27
    • EP03785620.0
    • 2003-10-14
    • BASF AKTIENGESELLSCHAFT
    • TAEGER, Tilman, LüdeckePABST, GuntherLAMALLE, PhilippeHÜFFER, StephanSCHROEDER, Stefan
    • C14C3/16
    • C14C1/065
    • The invention relates to a method for producing leather, comprising at least two of the following method steps A) to D): A) using one or more polyelectrolytes during the production of semifinished or intermediate products, involving the addition of one or more polyelectrolytes in at least one of steps (a) to (d): (a) together with 0 to 1.5 % by weight of lime, with regard to the weight of salt, immediately before or in the lime pit; (b) before or during deliming; (c) before or during bating; (d) together with, in total, 0 to 3 % by weight of alkaline salt or alkaline earth salt, with regard to the pelt weight, immediately before or in the pickle solution; B) in the lime pit, treating the skins in an aqueous liquor with one or more compounds of general formula (B.1) or with their corresponding alkali metal salts, alkaline earth metal salts, ammonium salts or phosphonium salts, whereby variables R10 and X1 to X4 have the meanings as cited in the description, with the provision that at least two mercapto groups are contained in the compound or compounds B.1; C) using degreasing agents of general formula (C.1) for degreasing pelts, skins or other intermediate stages and semifinished products during the production of leather, whereby variables n and R16 to R21 have the meanings as cited in the description; D) tanning by using a tanning agent that can be produced by reacting at least one aldehyde of general formula (D.1) with at least one other identical or different aldehyde of formula (D.1) in the presence of an acid catalyst and, optionally, in the presence of at least one additional carbonyl compound of formula (D.2), whereby variables Z and R22 to R25 have the meanings as cited in the description, with the provision that, in the event Z corresponds to a chemical single bond or to a radical without α-hydrogen atoms, at least one additional aldehyde of formula (D.1), in which radical Z contains α-hydrogen atoms, or at least one additional carbonyl compound of formula (D.2) is present. The invention also relates to leather that is produced according to the inventive method.
    • 本发明涉及一种用于生产皮革的方法,其包括以下方法步骤A)至D)中的至少两个:A)在半成品或中间产品的生产过程中使用一种或多种聚电解质,包括将一种或多种聚电解质加入 (a)至(d)中的至少一个:(a)在石灰坑之前或之中,与盐重量0-1.5%重量的石灰一起; (b)在除灰之前或期间; (c)在还款前或还款期间; (d)在腌渍溶液之前或在腌渍溶液中,总共含有0至3重量%的碱性盐或碱土盐,就毛皮重量而言; B)在石灰坑中,用一种或多种通式(B.1)的化合物或用它们相应的碱金属盐,碱土金属盐,铵盐或鏻盐处理含水液体中的表皮,由此变量R10和 X1至X4具有在说明书中引用的含义,条件是在一种或多种化合物B.1中包含至少两个巯基; C)使用通式(C.1)的脱脂剂在皮革生产过程中去除毛皮,毛皮或其他中间阶段和半成品,其中变量n和R16至R21具有如说明书中引用的含义; D)通过使用可通过使至少一种通式(D.1)的醛与至少一种其它相同或不同的式(D.1)的醛在酸催化剂存在下反应制备的鞣剂进行鞣制,和 任选地在至少一种式(D.2)的另外的羰基化合物存在下进行,其中变量Z和R22至R25具有如说明书中引用的含义,条件是在Z对应于化学式 单键或没有α-氢原子的基团,至少一种式(D.1)的另外的醛(其中基团Z含有α-氢原子)或至少一种式(D.2)的另外的羰基化合物为 当下。 本发明还涉及根据本发明方法生产的皮革。
    • 4. 发明公开
    • VERFAHREN ZUM ENTFETTEN VON TIERISCHEN HÄUTEN BEI ULTRANIEDRIGER GRENZFLÄCHENSPANNUNG
    • VERFAHREN ZUM ENTFETTEN VON TIERISCHENHÄUTENBEI ULTRANIRIGERGRENZFLÄCHENSPANNUNG
    • EP1585839A1
    • 2005-10-19
    • EP04700692.9
    • 2004-01-08
    • BASF Aktiengesellschaft
    • PABST, GuntherLAMALLE, PhilippeFÜNGERLINGS, ThomasOETTER, GünterERHARDT, RainerSCHERR, GünterSTREY, ReinhardSOTTMANN, ThomasENGELSKIRCHEN, Sandra
    • C14C1/08
    • The invention relates to compositions which are used for removing greases from substrates selected among skins, furs, pelts, and other intermediate products in leather and fur production. Said compositions contain a) a fat phase, b) at least one surfactant, c) an aqueous phase, and d) other optional adjuvants and additives, the interfacial surface tension between the fat phase and the aqueous phase ranging between 1 mNm-1 and 10-9 mNm-1 at a temperature of 15 to 45 °C. Also disclosed are a method for removing greases from said substrates, the use of the inventive compositions for removing greases from said substrates, degreasing agents comprising alcohol alkoxylates, the polydispersity D of the individual alcohol alkoxylates or an alcohol alkoxylate mixture being >1,22, and substrates which are selected among the group comprising skins, furs, pelts, and other intermediate products in leather and fur production and contain said alcohol alkoxylates.
    • 本发明涉及用于从皮革,毛皮,皮革以及皮革和毛皮生产中的其它中间产品中选择的底物中除去润滑脂的组合物。 所述组合物包含a)脂肪相,b)至少一种表面活性剂,c)水相,和d)其它任选的助剂和添加剂,脂肪相和水相之间的界面表面张力在1mNm -1之间 >和10 -9 mN m -1。还公开了一种从所述基材中除去润滑脂的方法,本发明组合物用于从所述基材中去除润滑脂的用途,脱脂剂包括 醇烷氧基化物,单独醇烷氧基化物的多分散性D或> 1,22的醇烷氧基化物混合物,以及在皮革和毛皮生产中选自皮肤,毛皮,毛皮和其它中间产品的组中的基材,并且含有所述醇 烷氧基化。