发明名称 |
FOERFARANDE FOER FRAMSTAELLNING AV VISKOS |
摘要 |
The invention provides a process for the manufacture of viscoses from hemicellulose-containing cellulose pulps without requiring dialysis equipment. By addition of substances having a cross-linking or blocking action on the active groups of hemicellulose to the pulp before or during steeping it is possible to reduce the use of NaOH and CS2 in the manufacture of viscoses. The viscoses so obtained are distinguished by good filterability and low content of compounds causing formation of H2S in the spinning process. |
申请公布号 |
FI66011(B) |
申请公布日期 |
1984.04.30 |
申请号 |
FI19800004047 |
申请日期 |
1980.12.30 |
申请人 |
HOECHST AG |
发明人 |
MAYER REINHART;FESTER WALTER;KLEBER ROLF |
分类号 |
C08B9/00;(IPC1-7):C08B9/00 |
主分类号 |
C08B9/00 |
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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