发明名称 |
PRODUCTION OF AND DRYING OF COPOLYMER FIBERS |
摘要 |
The present invention concerns processes for reducing water in never- dried fiber comprising copolymer derived from the copolymerization of para-phenylenediamine, 5 (6) -amino- 2- (p-aminophenyl) benzimidazole, and terephthaloyl dichloride; the process having the following steps in a continuous process, (a) a step of drying a never- dried fiber at less than lOOC until the moisture content of the fiber is less than 60 weight percent; and (b) a step of further drying the fiber above 150 °C while the moisture content of the fibers is no more than 40 weight precent; and the fiber being further heated to at least 350 °C in either an additional continuous or seperate step. |
申请公布号 |
WO2012097249(A1) |
申请公布日期 |
2012.07.19 |
申请号 |
WO2012US21239 |
申请日期 |
2012.01.13 |
申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY;ALLEN, STEVEN R.;NEWTON, CHRISTOPHER WILLIAM |
发明人 |
ALLEN, STEVEN R.;NEWTON, CHRISTOPHER WILLIAM |
分类号 |
D01D10/02;C08G69/32;C08G73/18;D01D10/06;D01F6/80 |
主分类号 |
D01D10/02 |
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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