发明名称 |
Process for dyeing leathers, water-soluble cationic polymers suitable for that purpose, and process for their preparation |
摘要 |
The invention relates to water-soluble cationic polymers and to their use in leather dyeing. The polymers preferably have K values of from about 20-45 and are obtained by reacting polyacrylonitrile or acrylonitrile copolymers in the presence of alcohols or polyols, optionally in the presence of a sulfur-containing catalyst. |
申请公布号 |
US4775385(A) |
申请公布日期 |
1988.10.04 |
申请号 |
US19860898461 |
申请日期 |
1986.08.20 |
申请人 |
BENCKISER-KNAPSACK GMBH |
发明人 |
SCHMIDT, RUDOLF;KLEEMANN, STEPHAN;WAHL, FRITZ |
分类号 |
C08F8/12;C08F8/32;(IPC1-7):D06P3/32 |
主分类号 |
C08F8/12 |
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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