| 摘要 |
PROBLEM TO BE SOLVED: To provide para-type wholly aromatic polyamide pulp, and to provide a process and apparatus for producing the same. SOLUTION: The para-type wholly aromatic polyamide pulp, particularly, the pulp is composed of microfibrils having an average diameter of less than 1μm, and has distorted oval-shaped cross-section wherein the longer distance is at least 1.2 times than the shorter distance. The apparatus for continuously orienting and maturing, or orienting, maturing and cutting a pre-polymer (non-oreinted) produced by reacting aromatic diamine with an equivalent mole of aromatic diacid chloride in a polymerization solvent. COPYRIGHT: (C)2008,JPO&INPIT
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