发明名称 |
Process for producing regenerated cellulosic fibers |
摘要 |
Regenerated cellulosic fibers of improved resistance to alkaline treatment are produced by nitrosating and dissolving from 5 to 14% by weight of a cellulosic material in a dialkylacylamide solvent while said solution is maintained at a temperature no greater than 20 DEG C to form a cellulose nitrite ester, and regenerating the cellulose by contacting the cellulose ester with a regenerant. Regeneration of the cellulose occurs before significant oxidation of the cellulose takes place.
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申请公布号 |
US4056675(A) |
申请公布日期 |
1977.11.01 |
申请号 |
US19760662132 |
申请日期 |
1976.02.27 |
申请人 |
INTERNATIONAL TELEPHONE AND TELEGRAPH CORPORATION |
发明人 |
TURBAK, ALBIN FRANK;HAMMER, RICHARD BENJAMIN |
分类号 |
C08B16/00;(IPC1-7):C08B16/00 |
主分类号 |
C08B16/00 |
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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