发明名称 |
RETANNING PROCESS |
摘要 |
<p>The present invention relates to a process to improve the organoleptic behaviour and the physical characteristics of leather by the use of aqueous solutions of copolymers of 90 to 20%-wt acrylic acid or methyacrylic acid, as well as 10 to 80%-wt of a monomer of the formula <IMAGE> wherein R1 is hydrogen or methyl; R2 and R3, which are equal or different, are methyl or ethyl; x stands for an optionally branched alkylene radical with 1 to 5 carbon atoms; the amine nitrogen is optionally neutralized or quaternized; and the molecular weight of the copolymer, measured at a pH of 8.0, is less than 100,000. The concentration of the copolymer in the aqueous solution is 0.02 to 10%-wt, relative to the shaved weight of the leather.</p> |
申请公布号 |
GR890300104(T1) |
申请公布日期 |
1989.10.31 |
申请号 |
GR19890300104T |
申请日期 |
1989.10.31 |
申请人 |
CHEMISCHE FABRIK STOCKHAUSEN & CIE. |
发明人 |
KAUSSEN, MANFRED, DR. DIPL.-CHEM.;STOCKHAUSEN, DOLF, DR. DIPL.-KAUFM.;HARTAN, HANS-GEORG, DR. DIPL.-CHEM.;LANDSCHEIDT, ALFONS, DR. DIPL.-CHEM. |
分类号 |
C08F220/06;C08F220/60;C14C3/22;C14C3/28;(IPC1-7):C14C3/22 |
主分类号 |
C08F220/06 |
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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