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公开(公告)号：US5238995A
公开(公告)日：1993-08-24
申请号：US578264
申请日：1990-09-06
CPC分类号： D01F6/14 , Y10T428/2904 , Y10T428/2913
摘要： Provided are high-performance polyvinyl alcohol fibers having excellent resistances to hot water and dry heat as well as excellent strength and elastic modulus. The fibers are produced from a highly syndiotactic polyvinyl alcohol containing units from vinyl pivalate in an appropriate amount, which renders it possible to draw the highly crystalline fiber in a high drawing ratio of at least 16.
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公开(公告)号：US5229057A
公开(公告)日：1993-07-20
申请号：US633955
申请日：1990-12-26
摘要： High-strength polyvinyl alcohol fiber is provided by extruding a polyvinyl alcohol dope solution through a spinneret into a coagulating bath, the spinneret being located such that substantially only its dope-extruding surface contacts the coagulating bath. This process can produce stably and at a low cost polyvinyl alcohol fibers with excellent strength.
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3.发明授权
公开(公告)号：US5133916A
公开(公告)日：1992-07-28
申请号：US341040
申请日：1989-04-20
CPC分类号： D01F6/14 , Y10T428/2913
摘要： Provided are a polyvinyl alcohol fiber having a specific higher order structure, obtained by having the orientation and arrangement of molecular chains forming the fiber which comprises a crystalline region and an amorphous region lie in specific ranges to thereby making the fiber have a break-ing temperature in hot water of at least 125.degree. C., or further at least 130.degree. C. and be excellent in abrasion resistance, while maintaining the tenacity and the modulus of the fiber at high levels; and a process for producing the same.
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4.发明授权Polyvinyl alcohol-based fiber having excellent hot water resistance and production process thereof 失效具有优异的耐热水性的聚乙烯醇系纤维及其制造方法
公开(公告)号：US5840423A
公开(公告)日：1998-11-24
申请号：US817822
申请日：1997-05-05
申请人： Hirofumi Sano , Tomoyuki Sano , Mitsuro Mayahara , Yoshinori Hitomi , Akira Shimizu , Yusuke Ando , Hiroshi Sumura
发明人： Hirofumi Sano , Tomoyuki Sano , Mitsuro Mayahara , Yoshinori Hitomi , Akira Shimizu , Yusuke Ando , Hiroshi Sumura
CPC分类号： D01F6/14 , Y10T428/2913 , Y10T428/2967
摘要： A high-strength and highly wet-heat-resistant polyvinyl-alcohol-based fiber--in which the crosslinking agent has hardly been oxidized by the heat at the drawing time upon preparation of the fiber, the crosslinking agent has not exhaled so much at the time of dry heat drawing, and the crosslinking agent has penetrated even inside of the fiber so that not only the surface but also the inside of the fiber has sufficiently been crosslinked--can be obtained by the steps of: preparing a polyvinyl-alcohl-based fiber by spinning the polyvinyl-alcohol-based solution, wet drawing the fiber, applying an acetalization compound of an aliphatic dialdehyde having at least 6 carbon atoms to the fiber, subjecting the fiber which contains above compound to dry heat drawing to a total draw ratio of at least 15, and then crosslinking the drawn filament with an acid under mild crosslinking treatment conditions.
摘要翻译： PCT No.PCT / JP96 / 02293 Sec。 371日期：1997年5月5日 102（e）日期1997年5月5日PCT提交1996年8月14日PCT公布。 公开号WO97 / 09472 日期1997年3月13日在纤维制造时交联剂在拉伸时几乎不被热量氧化的高强度，高度耐湿热的聚乙烯醇系纤维，交联剂没有 在干热拉伸时呼出太多，并且交联剂甚至穿透到纤维内部，使得不仅纤维的表面而且内部充分地交联 - 可以通过以下步骤获得：制备 通过纺丝聚乙烯醇基溶液，湿法拉伸纤维，向纤维中加入具有至少6个碳原子的脂肪族二醛的缩醛化合物，对含有上述化合物的纤维进行干热拉伸 总拉伸比至少为15，然后在温和的交联处理条件下用酸交联拉伸的长丝。
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5.发明授权Simulation method, fiber orientation control method and fiber orientation control apparatus 有权模拟方法，纤维取向控制方法和纤维取向控制装置公开(公告)号：US08214071B2
公开(公告)日：2012-07-03
申请号：US12439944
申请日：2007-09-04
IPC分类号： G06F7/66
CPC分类号： D21G9/0027
摘要： A method includes steps of: expressing changes of velocity components of a paper material at an exit of a slice lip by using a mathematical model, wherein the changes of velocity components are caused by manipulating an edge flow adjustment means (or a side bleed adjustment means) of a headbox when supplying the paper material on a wire; without changing a velocity component of a flow of the paper material in the mathematical model, setting the mathematical model based on an assumption in which a velocity component orthogonally crossing a flow direction of the paper material is proportionally changed by changes of an edge flow (or a side bleed) of a certain response width from the exit of the slice lip; and conducting a forecasting calculation of changes of a fiber orientation profile in a cross direction by using the mathematical model.
摘要翻译： 一种方法包括以下步骤：通过使用数学模型来表示在片唇缘的出口处的纸材料的速度分量的变化，其中速度分量的变化是通过操纵边缘流量调节装置（或侧排出调节装置 ）当将纸材料供应到电线上时，流浆箱 在数学模型中不改变纸材流的速度分量，基于这样一个假设来设定数学模型，其中正交与纸材流动方向正交的速度分量通过边缘流动的变化而成比例地改变（或 来自切片唇缘的出口的一定响应宽度的侧面渗出） 并通过使用数学模型进行横向上的纤维取向分布的变化的预测计算。
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6.发明申请SIMULATION METHOD, FIBER ORIENTATION CONTROL METHOD AND FIBER ORIENTATION CONTROL APPARATUS 有权模拟方法，光纤定向控制方法和光纤定向控制装置公开(公告)号：US20100276099A1
公开(公告)日：2010-11-04
申请号：US12439944
申请日：2007-09-04
申请人： Takashi Sasaki , Hirofumi Sano , Katsuma Ono , Hidenobu Todoroki
发明人： Takashi Sasaki , Hirofumi Sano , Katsuma Ono , Hidenobu Todoroki
CPC分类号： D21G9/0027
摘要： A method includes steps of: expressing changes of velocity components of a paper material at an exit of a slice lip by using a mathematical model, wherein the changes of velocity components are caused by manipulating an edge flow adjustment means (or a side bleed adjustment means) of a headbox when supplying the paper material on a wire; without changing a velocity component of a flow of the paper material in the mathematical model, setting the mathematical model based on an assumption in which a velocity component orthogonally crossing a flow direction of the paper material is proportionally changed by changes of an edge flow (or a side bleed) of a certain response width from the exit of the slice lip; and conducting a forecasting calculation of changes of a fiber orientation profile in a cross direction by using the mathematical model.
摘要翻译： 一种方法包括以下步骤：通过使用数学模型来表示在片唇缘的出口处的纸材料的速度分量的变化，其中速度分量的变化是通过操纵边缘流量调节装置（或侧排出调节装置 ）当将纸材料供应到电线上时，流浆箱 在数学模型中不改变纸材流的速度分量，基于这样一个假设来设定数学模型，其中正交与纸材流动方向正交的速度分量通过边缘流动的变化而成比例地改变（或 来自切片唇缘的出口的一定响应宽度的侧面渗出） 并通过使用数学模型进行横向上的纤维取向分布的变化的预测计算。
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