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公开(公告)号：KR1019970010734B1
公开(公告)日：1997-06-30
申请号：KR1019940023592
申请日：1994-09-16
Applicant: 한국과학기술연구원
Abstract: Obtaining a PAN/H2O mixture of gel crystal, it is extruded simply through a die, an extrusion which has a collection of tiny fibers in its inner structure is produced, and this extrusion is opened and a new 3rd generation acrylic short fiber is obtained. In this process, a gel crystal is formed, which has the characteristics of spontaneous molecular orientation. So, without spinning nor drawing process, a fiber containing far better molecular orientation than the previous high drawn fiber is produced.
Abstract translation: 获得凝胶晶体的PAN / H 2 O混合物，其通过模头被简单地挤出，产生在其内部结构中具有微小纤维集合的挤出物，并且该挤出物被打开，并获得新的第三代丙烯酸短纤维。 在该方法中，形成具有自发分子取向特性的凝胶晶体。 因此，不纺丝和拉伸过程，产生比以前的高拉伸纤维更好的分子取向的纤维。
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公开(公告)号：KR100124939B1
公开(公告)日：1997-12-15
申请号：KR1019900008334
申请日：1990-06-04
Applicant: 한국과학기술연구원
IPC: D01F6/18
Abstract: The manufacturing process of a new fabric, using acrylonitrile polymer without the general spinning process yielding a new pulpy filament with a high degree of orientation is provided. With a 70-30 weight ratio of acrylonitrile-monomer that can be copolymerized, acrylonitrile homopolymer or copolymer, whose viscometric average molecular weight is 10,000~600,000, is mixed with water 5~100% w/w. An amorphous melting body is obtained by heating this mixture above the melting temperature under sealed conditions. Then an overcooled melting phase is obtained by cooling below the melting temperature. Afterwards, this material is extruded through a linear outlet at a temperature between the melting temperature and the solidifying temperature to get a solidified material of the lamellar fibril layers with fabric crystalline structure and a 70% or above degree of orientation in X-ray diffraction pattern. The final fabric with a higher degree of orientation than highly elongated fabric is produced by beating mechanically without spinning or elongating.
Abstract translation: 提供了一种新型织物的制造工艺，其使用丙烯腈聚合物，而不使用普通纺丝工艺，产生具有高度取向的新的浆状丝。 丙烯腈 - 单体可共聚70-30重量份，其粘度平均分子量为10,000〜600,000的丙烯腈均聚物或共聚物与5〜100％w / w的水混合。 通过在密封条件下将该混合物加热至高于熔融温度而获得无定形熔融体。 然后通过冷却低于熔融温度获得过冷熔融相。 之后，该材料通过线性出口在熔融温度和凝固温度之间的温度下挤出，得到具有织物结晶结构的层状原纤维层的固化材料，并且在X射线衍射图中具有70％或更高的取向度 。 具有比高度细长的织物具有更高取向度的最终织物通过机械地打浆而不纺丝或伸长而产生。
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Patent Agency Ranking
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公开(公告)号：KR1019950005429B1
公开(公告)日：1995-05-24
申请号：KR1019910004820
申请日：1991-03-27
Applicant: 한국과학기술연구원
IPC: D01F6/18
CPC classification number: D01F6/18 , D01D1/02 , D01D5/11 , D01D5/42 , Y10T428/29 , Y10T428/2904 , Y10T428/2913
Abstract: The fibers having thickness distribution 0.1˜50 microns, lenyth distribution 1˜20 mm, heat transformation temp. over 200 deg.C and solubility in dimethylformamide at room temp.below 5%, are prepared by: (1) heating mixture of 5˜100 % water and specified polymer to form amorphous melt at temp. above melting point of mixture under closed conditions; (2) cooling amorphous melt to temp. between melting point and solidifying temp. to form supercooled phase; (3) stand-extruding super cooled melt at room temp. and normal pressure through extruder with slit or round die into external atmosphere to form extrudate of die section; (4) passing extrudate under tension through 2 pressure rollers at 100˜180 deg.C; (5) drying and and stretching extrudate; (6) heat-stabilising extrudate by heating to 180˜300 deg.C for 1 min.˜4 hrs.; (7) cutting extrudate into suitable lengths; and mechanical beating.
Abstract translation: 纤维的厚度分布为0.1〜50微米，连翘分布1〜20毫米，热转变温度 超过200℃，室温下在二甲基甲酰胺中的溶解度为5％，通过以下方法制备：（1）加热5-100％水和特定聚合物的混合物，在温度下形成无定形熔体。 在封闭条件下混合物熔点以上; （2）将无定形熔体冷却至温度。 熔点和凝固温度之间。 形成过冷相; （3）室温下挤出超冷却熔体。 并通过挤压机的正常压力与狭缝或圆形模具进入外部气氛以形成模具部分的挤出物; （4）在100〜180℃下通过2个加压辊在压力下通过挤出物; （5）干燥和拉伸挤出物; （6）热稳定挤出物，加热至180〜300℃1分钟〜4小时。 （7）将挤出物切割成合适的长度; 和机械打击。
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公开(公告)号：KR1019940009385A
公开(公告)日：1994-05-20
申请号：KR1019920018009
申请日：1992-10-01
Applicant: 한국과학기술연구원
IPC: D01F6/18
Abstract: 아크릴로니트릴 중합체와 물의 조성물로부터 형성된 겔 결정체를 압출하는 무방사법에 의해 제조되고, 아크릴로니트릴 단독 중합체 또는 무게비 80% 이상의 아크릴로니트릴 및 무게비 20% 이하의 공중합 가능한 단량체의 조성을 갖는 아크릴로니트릴 공중합체로 구성되며, 미소 섬유들이 가지런히 배열 집합된 내부 구조 및 X선 회절 패턴에서 80% 이상 97% 사이의 배향도를 가지며, 5mm에서 500mm 사이의 길이 분포, 5μm-500μm의 굵기 분포, 100~10,000의 길이 대 굵기비, 10~70kg/㎟의 인장 강도, 200~1,500kg/㎟의 탄성률, 5~20%의 신도 및 1~50㎡/g의 비표면적을 가지는 것이 특징인 순백색의 아크릴 섬유가 제공된다. 이와 같은 본 발명의 아크릴 섬유는 방적사 제조에 적합한 스테플 섬유 또는 의마(醫麻) 섬유 뿐만 아니라, 석면 대체 섬유, 보온 내열 섬유, 시멘트 보강용 섬유 등의 산업용 소재로 적합하다.
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公开(公告)号：KR1019920008998B1
公开(公告)日：1992-10-12
申请号：KR1019900010459
申请日：1990-07-11
Applicant: 한국과학기술연구원
IPC: D01F6/18
Abstract: The method for producing highly-oriented fibrillar pulp-like staple fiber whose thickness 0.1-100 μm and length 0.1-100 mm comprises: making mixtures of acrylonitrile homopolymer or comonomer, composed of more than 70 wt.% acrylonitrile and less than 30 wt.% copolymerizable monomer and whose viscosity average mol.wt. is 10,000-60,000, and 5-100 wt.% water; heating above m.p. under the closed condition to make non-crystalline melts; cooling these melts below m.p. to make overly-cooled melts; extruding them under the condition of between m.p and solidifying point to make extrudates whose cross-section of fibrils has evenly-aligned feature, crystalline state and degree of orientation above 70 %; heat-drawing and beating.
Abstract translation: 生产厚度为0.1-100μm，长度为0.1-100mm的高定向纤维浆状短纤维的方法包括：制备丙烯腈均聚物或共聚单体的混合物，其由大于70重量％的丙烯腈和小于30重量％的丙烯腈组成。 ％可共聚单体，其粘均分子量 是10,000-60,000和5-100重量％的水; 加热高于m.p. 在封闭状态下使非晶态熔融; 将这些熔体冷却至低于m.p. 使过冷却熔化; 在m.p和凝固点之间挤出它们使得原纤维横截面具有均匀排列的特征，结晶态和取向度高于70％的挤出物; 热拔和跳动。
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