公开(公告)号：US4876040A

公开(公告)日：1989-10-24

申请号：US24173

申请日：1987-03-10

申请人： Ho J. Park ,  Moo S. Rhim ,  Hak M. Kim ,  Du H. Kim ,  Seog C. Yoo ,  Sang H. Kim ,  Sa Ng B. Park ,  Ink S. Han ,  Jong T. Park ,  Si M. Kim

发明人： Ho J. Park ,  Moo S. Rhim ,  Hak M. Kim ,  Du H. Kim ,  Seog C. Yoo ,  Sang H. Kim ,  Sa Ng B. Park ,  Ink S. Han ,  Jong T. Park ,  Si M. Kim

IPC分类号： C08G69/32 ,  C08J5/18 ,  D01D5/00 ,  D01F6/60

CPC分类号： D01D5/06 ,  C08J5/18 ,  D01D5/38 ,  D01F6/605 ,  C08J2377/10

摘要： A process for preparing aromatic polyamide fibers wherein an aromatic diamine and an aromatic diacidchloride are dissolved in an amide polymerization solvent containing an inorganic salt, a partial polymerization is effected at a low temperature to form an optically anisotropic liquid crystalline prepolymer dope, and the liquid crystalline prepolymer dope is subjected to a molecular orientating polymerization in a polymerization accelerating-precipitation solvent to provide aromatic polyamide fibers free of a crystal defect layer perpendicular to the fiber axis and having high strength and high degree of molecular orientation.

摘要翻译： 一种芳族聚酰胺纤维的制备方法，其中将芳族二胺和芳族二酰氯溶解在含有无机盐的酰胺聚合溶剂中，部分聚合在低温下进行以形成光学各向异性液晶预聚物涂料，液晶 预聚物掺杂物在聚合促进 - 沉淀溶剂中进行分子取向聚合，以提供不含垂直于纤维轴线的晶体缺陷层并具有高强度和高分子取向度的芳族聚酰胺纤维。

公开(公告)号：US5047500A

公开(公告)日：1991-09-10

申请号：US396065

申请日：1989-10-23

申请人： Ho J. Park ,  Moo S. Rhim ,  Hak M. Kim ,  Du H. Kim ,  Seog C. Yoo ,  Sang H. Kim ,  Sa N. B. Park ,  Ink S. Han ,  John T. Park ,  Si M. Kim

发明人： Ho J. Park ,  Moo S. Rhim ,  Hak M. Kim ,  Du H. Kim ,  Seog C. Yoo ,  Sang H. Kim ,  Sa N. B. Park ,  Ink S. Han ,  John T. Park ,  Si M. Kim

IPC分类号： C08G69/32 ,  C08J5/18 ,  D01D5/00 ,  D01F6/60

CPC分类号： D01D5/06 ,  C08J5/18 ,  D01D5/38 ,  D01F6/605 ,  C08J2377/10

摘要： A fiber product comprising one or more fibers of aromatic polyamide polymer having a microscopic structure of an extended molecular chain, free of crystal defect layers perpendicular to the fiber axis, a high inherent viscosity of at least 3.0 [dl/g], and a high tensile strength of at least 15 g/d, said inherent viscosity being determined at 30.degree. C. using a concentration of 0.5 grams of said polymer in 100 ml of concentration sulfuric acid.

公开(公告)号：US4971744A

公开(公告)日：1990-11-20

申请号：US396880

申请日：1989-08-21

申请人： Ho J. Park ,  Moo S. Rhim ,  Hak M. Kim ,  Du H. Kim ,  Seog O. Yoo ,  Sang H. Kim ,  Sang B. Park ,  Ink S. Han ,  Jong T. Park ,  Si M. Kim

发明人： Ho J. Park ,  Moo S. Rhim ,  Hak M. Kim ,  Du H. Kim ,  Seog O. Yoo ,  Sang H. Kim ,  Sang B. Park ,  Ink S. Han ,  Jong T. Park ,  Si M. Kim

IPC分类号： C08G69/32 ,  C08J5/18 ,  D01D5/00 ,  D01F6/60

CPC分类号： D01D5/06 ,  C08J5/18 ,  D01D5/38 ,  D01F6/605 ,  C08J2377/10

摘要： A process for preparing aromatic polyamide film wherein an aromatic diamine and an aromatic diacidchloride are dissolved in an amide polymerization solvent containing an inorganic salt, a partial polymerization is effected at a low temperature to form an optically anisotropic liquid crystalline prepolymer dope, continuously extruding through a film die under a draw ratio or subjecting to a shear and contacting the prepolymer with a second solvent which is a polymerization accelerating-precipitation solvent to obtain an aromatic polyamide film free of crystal defect layer perpendicular to the film axis and having high strength and a high degree of molecular orientation.