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    • 3. 发明申请
    • Method for removing horn substances from animal skin
    • 从动物皮肤去除角质物质的方法
    • US20060037148A1
    • 2006-02-23
    • US10531167
    • 2003-10-14
    • Hans-George LemaireTilman TaegerGunther PabstPhilippe LamalleMichael BreuerBurkhard KrogerThomas Subkowski
    • Hans-George LemaireTilman TaegerGunther PabstPhilippe LamalleMichael BreuerBurkhard KrogerThomas Subkowski
    • C14C1/00
    • C14C1/065
    • The invention relates to a method for removing horn substances from animal skin. Said method is characterised in that animal skins are treated in an aqueous bath containing between 0.05 and 5 wt. %—in relation to the weight of the salt—of at least one compound of general formula I or the corresponding alkali metallic salts or alkaline-earth metallic salts thereof or ammonium or phosphonium salts, the variables having the following definitions: R1 is selected from hydrogen or C1-C12 alkyl, unsubstituted or substituted by at least one S—H group or one O—H group; X1 to X4 are the same or different and selected from hydrogen, C1-C4 alkyl, O—H, S—H or N—HR2; and R2 represents hydrogen or C1-C12 alkyl or a C1-C4-alkyl-C═O group, at least one X1 to X4 representing S—H. If R1 contains neither O—H nor S—H, at least one other X1 to X4 is selected from S—H, OH or NH—R2. Said aqueous bath also comprises at least one compound which catalyses the hydrolysis of peptide compounds.
    • 本发明涉及从动物皮肤去除角质物质的方法。 所述方法的特征在于动物皮肤在含有0.05至5wt。 % - 与至少一种通式I化合物或其相应的碱金属盐或碱土金属盐或铵盐或鏻盐的盐的重量相关,所述变量具有以下定义:R 1选自 氢或C1-C12烷基,未被取代或被至少一个SH基团或一个OH基团取代; X 1〜X 4相同或不同,选自氢,C 1 -C 4烷基,O-H,S-H或N-HR 2; 并且R 2表示氢或C 1 -C 12烷基或C 1 -C 4烷基-C 0基团,至少一个表示S-H的X 1至X 4。 如果R 1既不含O-H也不包含S-H,则至少一个其它的X 1至X 4选自S-H,OH或NH-R 2。 所述水浴还包含至少一种催化肽化合物水解的化合物。