发明名称 |
Tanning process and tanning compositions |
摘要 |
A tanning process comprising pickling a hide which has previously subjected to beamhouse works such as depilation if necessary, decalcification and beating, in the presence of urotropin and at least one tanning improver selected from chromium and aluminum salts as well as from phenolic compounds, organic compounds containing nitrogen and sulphur or halogen atoms, organic carboxylic acids, organotin compounds, copper compounds and arsenic compounds.
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申请公布号 |
US4348201(A) |
申请公布日期 |
1982.09.07 |
申请号 |
US19800147663 |
申请日期 |
1980.05.07 |
申请人 |
SEITETSU KAGAKU CO., LTD. |
发明人 |
HAYASHI, SABURO;OKADA, SYOHITI;OKAMOTO, KAZUYOSHI;MIZUTANI, MOCHIFUMI;ISONO, TEIZO;OSADA, TOSHIO;OKABE, TOHRU;ADACHI, MITSUJI |
分类号 |
C14C1/08;C14C3/06;(IPC1-7):C14C1/04 |
主分类号 |
C14C1/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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