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公开(公告)号：US5219501A
公开(公告)日：1993-06-15
申请号：US723187
申请日：1991-06-28
申请人： Han S. Yoon , Tae W. Son , Chul J. Lee , Byung G. Min , Jae W. Cho
发明人： Han S. Yoon , Tae W. Son , Chul J. Lee , Byung G. Min , Jae W. Cho
摘要： A process for the production of pulp-like short fibers having a highly-oriented fibril structure without spinning is provided. This process comprises heating a mixture of water and an acrylonitrile homopolymer or copolymer to a temperature above the melting temperature of the mixture under enclosed conditions to form an amorphous melt; cooling the resulting amorphous melt to a temperature below the melting temperature to obtain a supercooled melt phase; extruding the resulting supercooled melt phase through a slit die at a temperature between the melting and the solidifying temperatures of the melt phase into an external atmosphere to give extrudates; and subjecting the resulting extrudates to drawing and heat treatment followed by beating mechanically.
摘要翻译： 提供了一种用于生产具有高度取向的原纤维结构而不纺丝的纸浆状短纤维的方法。 该方法包括在封闭条件下将水和丙烯腈均聚物或共聚物的混合物加热到高于混合物的熔融温度的温度以形成无定形熔体; 将所得无定形熔体冷却至低于熔融温度的温度，以获得过冷熔融相; 将所得过冷熔融相通过狭缝模头在熔融相的熔融温度和固化温度之间的温度下挤出到外部气氛中，得到挤出物; 并对所得的挤出物进行拉伸和热处理，然后机械地进行打浆。
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公开(公告)号：US5454910A
公开(公告)日：1995-10-03
申请号：US303878
申请日：1994-09-09
申请人： Han S. Yoon , Tae W. Son , Chul J. Lee , Byung G. Min , Jae W. Cho
发明人： Han S. Yoon , Tae W. Son , Chul J. Lee , Byung G. Min , Jae W. Cho
CPC分类号： D21H13/24 , C08G63/065 , C08G63/60 , C08G63/605 , D01F6/84 , Y10T428/29 , Y10T428/2904
摘要： Pulp-like short fibers prepared from liquid crystal polyesters capable of forming an anisotropic melt phase at a temperature of 200.degree. C. to 400.degree. C. and having a molecular weight of 2,000 to 100,000 are provided. These fibers consist of microfibrils and have the following highly-oriented fiber characteristics and properties:(a) Tensile strength: 5-30 g/den.;(b) Modulus of elasticity: 200-1,500 g/den.;(c) Orientation angle as determined by an X-ray diffraction: below 20.degree.;(d) Thickness distribution: 0.1-50 .mu.m;(e) Length distribution: 0.1-50 mm; and(f) Specific surface area as determined by a nitrogen adsorption method: 3-30 m.sup.2 /g.
摘要翻译： 提供由能够在200℃至400℃的温度下形成各向异性熔融相的分子量为2,000至100,000的液晶聚酯制备的纸浆状短纤维。 这些纤维由微原纤维组成，具有以下高取向纤维特性和性能：（a）抗拉强度：5-30g / （b）弹性模量：200-1,500克/旦; （c）通过X射线衍射测定的取向角：低于20°; （d）厚度分布：0.1-50μm; （e）长度分布：0.1-50mm; 和（f）通过氮吸附法测定的比表面积：3-30m 2 / g。
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公开(公告)号：US5589264A
公开(公告)日：1996-12-31
申请号：US446287
申请日：1995-05-22
申请人： Han S. Yoon , Tae W. Son , Byung C. Kim , Chul J. Lee , Byung G. Min , Jae W. Cho
发明人： Han S. Yoon , Tae W. Son , Byung C. Kim , Chul J. Lee , Byung G. Min , Jae W. Cho
CPC分类号： D01F6/18 , D01D5/26 , D04H13/00 , Y10T428/29 , Y10T428/2904 , Y10T428/2913
摘要： A highly-oriented acrylic staple fiber prepared by simple extrusion of a PAN/H.sub.2 O melt in a gel crystalline state without spinning is provided. The acrylic fibers according to the present invention are characterized by the following properties: a degree of orientation between 80 and 97% observed by an X-ray diffraction; a length distribution ranging from 5 to 500 mm and a thickness distribution ranging from 5 to 500 .mu.m, a length to thickness ratio ranging from 100 to 100,000 determined by a scanning electromicroscope; a tensile strength of 10 to 70 kg/mm.sup.2 ; an initial tensile modulus of 300 to 1,500 kg/mm.sup.2 ; an elongation of 5 to 20%; and a specific surface area of 1 to 50 m.sup.2 /g.
摘要翻译： 提供了一种通过简单地挤出PAN / H 2 O熔体在凝胶状态而不纺丝而制备的高度取向的丙烯酸短纤维。 根据本发明的丙烯酸纤维的特征在于以下性质：通过X射线衍射观察到的取向度在80和97％之间; 长度分布范围为5〜500mm，厚度分布范围为5〜500μm，通过扫描型电子显微镜测定的厚度比范围为100〜100,000; 拉伸强度为10〜70kg / mm2; 初始拉伸模量为300〜1500kg / mm2; 伸长5〜20％; 比表面积为1〜50m2 / g。
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公开(公告)号：US5434002A
公开(公告)日：1995-07-18
申请号：US148629
申请日：1993-11-08
申请人： Han S. Yoon , Tae W. Son , Chul J. Lee , Byung G. Min , Jae W. Cho
发明人： Han S. Yoon , Tae W. Son , Chul J. Lee , Byung G. Min , Jae W. Cho
CPC分类号： D01D5/26 , D01F6/18 , D21H13/18 , Y10T428/29 , Y10T428/2904 , Y10T428/2913 , Y10T428/2967
摘要： A non-spun fiber of acrylic polymers, characterized by a pulp-like short fiber form of a thickness distribution of 0.1 to 100 .mu.m and a length distribution of 0.1 to 100 mm, and by irregular cross-sections in a plane taken perpendicular to the fiber axis and needle point-like ends similar to those of natural wood pulp fibers. The acrylic fiber of the present invention is made of an acrylonitrile homopolymer or copolymer consisting of a least 70% acrylonitrile (by weight) and at most 30% copolymerizable monomers (by weight) and having a viscosity average molecular weight between 10,000 to 600,000. The acrylic fiber according to the invention is further featured by the following physical properties: a degree of orientation of more than 80% based on X-ray diffraction pattern data, a tensile strength of 3 to 10 g/denier and an initial modulus of 30 to 100 g/denier, and absolutely no cylindrically-shaped filament trunks.
摘要翻译： 丙烯酸类聚合物的非纺丝纤维，其特征在于厚度分布为0.1〜100μm，长度分布为0.1〜100mm的纸浆状短纤维形状，以及垂直于 纤维轴和针尖端类似于天然木浆纤维。 本发明的丙烯酸系纤维由丙烯腈均聚物或共聚物构成，丙烯腈均聚物或共聚物由至少70％的丙烯腈（重量）和最多30％的可共聚单体（重量比）组成，粘均分子量为10,000〜600,000。 根据本发明的丙烯酸纤维还具有以下物理性质：基于X射线衍射图数据，取向度大于80％，拉伸强度为3至10g /旦，初始模量为30 到100克/旦，绝对没有圆柱形的长丝。
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公开(公告)号：US5401576A
公开(公告)日：1995-03-28
申请号：US64345
申请日：1993-05-20
申请人： Han S. Yoon , Tae W. Son , Byung C. Kim , Byung G. Min , Jae W. Cho , Chul J. Lee
发明人： Han S. Yoon , Tae W. Son , Byung C. Kim , Byung G. Min , Jae W. Cho , Chul J. Lee
IPC分类号： D01D5/11 , D01D5/42 , D01F6/18 , D01F6/38 , D01F6/40 , D02G3/02 , D02J1/22 , D21H13/18 , D02G3/00
CPC分类号： D01F6/18 , D01D5/11 , D01D5/42 , D01D1/02 , Y10T428/29 , Y10T428/2904 , Y10T428/2913
摘要： A new, pulp-like, acrylic short fiber having excellent heat- and chemical-resistance is provided. The fiber has a thickness distribution of 0.1 .mu.m to 50 .mu.m, a length distribution of 1 mm to 20 mm, and a thermal transition temperature (Tg) of above 200.degree. C. The fiber is produced by heating a mixture of polyacrylonitrile and water of about 5% to 100% by weight to temperatures above hydration-melting temperature under seal to an amorphous melt; cooling the resulting amorphous melt to temperatures between the melting and the solidifying temperatures of the melt to form a supercooled melt; extruding the resulting supercooled melt to give extrudates; heat-stabilizing the resulting extrudates at temperatures between 180.degree. C. and 300.degree. C. for 1 minute to 4 hours after drying and drawing; and cutting and beating the resulting heat-stabilized extrudates into an appropriate size.
摘要翻译： 提供了具有优异的耐热和耐化学性的新的纸浆状丙烯酸类短纤维。 纤维的厚度分布为0.1μm〜50μm，长度分布为1mm〜20mm，热转变温度（Tg）为200℃以上。纤维通过加热聚丙烯腈和 约5％至100％重量的水至密封下的水合熔融温度至无定形熔体的温度; 将所得到的无定形熔体冷却至熔体的熔融温度和固化温度之间以形成过冷熔体; 挤出所得过冷熔体以得到挤出物; 在180℃至300℃的温度下，将所得挤出物在干燥和拉伸后热稳定1分钟至4小时; 并将所得热稳定的挤出物切割并打浆成适当的尺寸。
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公开(公告)号：US5132393A
公开(公告)日：1992-07-21
申请号：US708167
申请日：1991-05-31
申请人： Han S. Yoon , Tae W. Son , Chul J. Lee , Byung G. Min , Jae W. Cho
发明人： Han S. Yoon , Tae W. Son , Chul J. Lee , Byung G. Min , Jae W. Cho
CPC分类号： C08G69/265 , C08G69/32
摘要： Novel wholly aromatic polyamides and copolyamides of the formula: ##STR1## are provided. The aromatic polyamides and copolyamides are prepared by condensation polymerizing an aromatic diamine selected from 3,5-diaminobenzophenone and a mixture of 3,5-diaminobenzophenone and m-phenylenediamine with an aromatic dibasic acid chloride in a chemical equivalent amount. The polymers of the invention can be easily dissolved in an organic solvent to give a molding solution suitable for use in the film casting. The film resulted from the polyamides of the invention has excellent physiochemical properties such as durability, chemical resistance, flexibility, compactness, tenacity, transparency and electric insulation.
摘要翻译： 提供了新的全芳族聚酰胺和下式的共聚酰胺：
（VI） 。 通过将选自3,5-二氨基二苯甲酮和3,5-二氨基二苯甲酮和间苯二胺的混合物的芳族二胺与化学当量的芳族二元酰氯缩聚而制备芳族聚酰胺和共聚酰胺。 本发明的聚合物可以容易地溶解在有机溶剂中，得到适合用于膜铸造的成型溶液。 由本发明的聚酰胺产生的膜具有优异的物理化学性质，例如耐久性，耐化学性，柔韧性，致密性，韧性，透明性和电绝缘性。 -
7.发明授权Wholly aromatic polyamide from N,N'-bis (4-amino phenyl)-isophthalamide 失效来自N，N'-双（4-氨基苯基） - 间苯二酰胺的全芳族聚酰胺
公开(公告)号：US5093464A
公开(公告)日：1992-03-03
申请号：US441465
申请日：1989-11-27
申请人： Han-Sik Yoon , Wha S. Lee , Tae W. Son , Chul J. Lee , Byung G. Min
发明人： Han-Sik Yoon , Wha S. Lee , Tae W. Son , Chul J. Lee , Byung G. Min
摘要： New wholly aromatic polyamides are provided. This polymers are prepared by a mixture of N,N'-bis(4-aminophenyl)-isophthalamide and p-phenylenediamine in a tertiary amide solvent containing an alkali metal salt such as LiCl and a tertiary amine as an acid acceptor. The polymers are easily dry-jet spun to form a fiber and cast to form a film. The fiber and film so obtained have ultrahigh tenacity, elasticity and elongation.
摘要翻译： 提供新的全芳族聚酰胺。 该聚合物通过N，N'-双（4-氨基苯基） - 间苯二胺和对苯二胺的混合物在含有碱金属盐如LiCl和叔胺作为酸受体的叔胺溶剂中制备。 聚合物容易地被干喷射纺丝以形成纤维并且浇铸以形成膜。 所得到的纤维和薄膜具有超强度，弹性和伸长率。
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公开(公告)号：US4511623A
公开(公告)日：1985-04-16
申请号：US523780
申请日：1983-08-16
申请人： Han S. Yoon , Tae W. Son
发明人： Han S. Yoon , Tae W. Son
CPC分类号： D01D5/26 , C08G69/32 , D01D5/38 , D01F6/605 , D21H13/26 , Y10T428/2904 , Y10T428/2913 , Y10T428/2973 , Y10T428/2976
摘要： High oriented poly(p-phenylenetetraphthalamide) short fibers having an inherent viscosity of at least 5.0 and a dimension of 2-12 .mu.m in diameter and 1000-5000 .mu.m in length are provided. These fibers have a physical form of irregular cross-sections and needle point-like ends similar to those of natural wood pulp fibers, and crystalline properties such as a crystallinity of more then 50%, an orientation angle of less than 25.degree. and an apparent crystallite size of more that 50 .ANG. as determined from an X-ray diffractogram scan, and a cross-section with four extinction positions through 360.degree. rotation when observed under a polarizing microscope. These fibers are prepared, without spinning steps, by subjecting the molecular chains of poly(p-phenyleneterephthalamide) to mechanical parallelization during the growth of the chains in a polymerization system therefor containing a pyridine/amide-based solvent.
摘要翻译： 提供了具有至少5.0的特性粘度和直径为2-12μm的尺寸和长度为1000-5000μm的高取向聚（对 - 亚硝基邻苯二甲酰亚胺）短纤维。 这些纤维具有类似于天然木浆纤维的不规则横截面和针状端的物理形式，并且结晶性如结晶度大于50％，取向角小于25°，表观 微晶尺寸由X射线衍射图扫描确定为多于50个ANGSTROM，并且在偏光显微镜下观察时具有四个消光位置360°旋转的横截面。 在不含纺丝步骤的情况下，通过在含有吡啶/酰胺类溶剂的聚合体系中使链的生长期间使聚（对亚苯基对苯二甲酰胺）的分子链进行机械平行化，制备这些纤维。
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公开(公告)号：US4987208A
公开(公告)日：1991-01-22
申请号：US392571
申请日：1989-08-11
申请人： Tae W. An , Jong K. Jung , Yung C. Yoo , Pil H. Lee , Tae W. Son
发明人： Tae W. An , Jong K. Jung , Yung C. Yoo , Pil H. Lee , Tae W. Son
CPC分类号： C08G63/605
摘要： The present invention relates to a melt processable wholly aromatic polyester which includes the recurring moieties (I), (II), (III), and (IV), wherein the recurring moiety (IV) is present in an amount of 5 to 35 mole % based on the total amount of the moieties and can be subjected to melt process at a temperature below 350.degree.: ##STR1##
摘要翻译： 本发明涉及可熔融加工的全芳族聚酯，其包含重复部分（I），（II），（III）和（IV）），其中重复部分（IV）以5-35摩尔的量存在 （I）图像（IV）中，可以在低于350℃的温度下进行熔融加工。
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