发明名称 |
CELLULOSEFASERN AUS FLÜSSIGKRISTALLINEN URSPRUNG MIT BEDEUTENDER BRUCHDEHNUNG UND VERFAHREN ZU IHRE HERSTELLUNG |
摘要 |
A cellulose formate fiber of liquid-crystal origin, having a high elongation at break and having the following characteristics: a) under an optical polarizing microscope, its filaments have a banded structure typical of its liquid-crystal origin; b) it satisfies the following relationships: DS>/=2; Ar>/=8; Te<45; Mi>500; Er>10, DS being the degree of substitution of the cellulose with formate groups in the fiber (in %), Ar the elongation at break (in %) of the fiber, Te its tenacity (in cN/tex), Mi its initial modulus (in cN/tex) and Er its energy at break (in J/g). Also, a process for obtaining this cellulose formate fiber by "dry-jet-wet-spinning" of a liquid-crystal solution of cellulose formate, in which water is used as coagulating agent. A fiber of cellulose regenerated from cellulose formate which itself has a high value of elongation at break, and a process for obtaining this fiber. |
申请公布号 |
DE69806466(D1) |
申请公布日期 |
2002.08.14 |
申请号 |
DE1998606466 |
申请日期 |
1998.02.02 |
申请人 |
MICHELIN RECHERCHE ET TECHNIQUE S.A., GRANGES-PACCOT |
发明人 |
MERALDI, JEAN-PAUL;CIZEK, VLASTIMIL;AUBRY, JEAN-CLAUDE |
分类号 |
C08B16/00;C09K19/38;D01F2/00;D01F2/28;(IPC1-7):D01F2/28 |
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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