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公开(公告)号：WO2021118351A1
公开(公告)日：2021-06-17
申请号：PCT/NL2020/050773
申请日：2020-12-10
Applicant: SMIT TANNING B.V.
Inventor： HENDRIKSEN, Wouter Egbert-Jan , VON BEHR, Dirick Jobst Alexander , WILGENBURG, Pim Jan-Willem
Abstract: The invention relates to tanning agents for leather and concerns a zeolite composition suitable as a single tanning agent comprising zeolite, a first weak acid, a second weak acid and optionally a third weak acid. This zeolite composition enables an efficient and effective chrome-free tanning.
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