| 发明名称 |
Dyeing polymers contng nitrile groups |
| 摘要 |
<p>Polymers containing nitrile groups are dyed yellow to brown by introducing sulphur into the polymer by treatment with an aq. soln. of H2S or its salts in a neutral medium followed by a subsequent treatment in a weakly acid medium.</p> |
| 申请公布号 |
DE1964499(A1) |
申请公布日期 |
1971.06.24 |
| 申请号 |
DE19691964499 |
申请日期 |
1969.12.23 |
| 申请人 |
INSTITUT CHIMII AKADEMII NAUK TADSCHIXKOI SSR USSR |
发明人 |
MASCHKAMOW,KAJUM;YAKUBOWITSCH KALONTAROW,IOSIF;NIKOLAEWNA REPINA GEB. TSWETOWA,ELEONORA |
| 分类号 |
C08F8/34;D06M11/53;D06P1/00;D06P1/673;D06P3/70 |
主分类号 |
C08F8/34 |
| 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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