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246 条记录 (耗时 0.021 秒)

    Method of making an oriented polymeric film
    95.
    发明授权
    Method of making an oriented polymeric film 失效
    制备取向聚合物膜的方法

    公开(公告)号：US4557780A

    公开(公告)日：1985-12-10

    申请号：US542031

    申请日：1983-10-14

    申请人： David L. Newsome ,  Arnold R. Rein ,  Bradley J. Hoss ,  George O. Schroeder

    发明人： David L. Newsome ,  Arnold R. Rein ,  Bradley J. Hoss ,  George O. Schroeder

    IPC分类号： B32B27/08 ,  B32B27/32 ,  B29D7/24

    CPC分类号： B32B27/08 ,  B32B27/322 ,  Y10T428/31725 ,  Y10T428/31739 ,  Y10T428/31743 ,  Y10T428/31913

    摘要： Molecularly oriented plastic films have five molecularly oriented layers. A first layer provides a barrier to gaseous transmission through the film and has a composition of 0% to 50% nylon or nylon copolymer, and conversely 50% to 100% ethylene vinyl alcohol. Second and third adhesive layers are adhered to the surfaces of the first layer, and have compositions comprising olefinic polymers, or copolymers, or blends thereof, the compositions having carboxyl modifications therein. Fourth and fifth layers are adhered to the second and third layers on the respective surfaces opposite the first layer. The fourth and fifth layers comprise 40% to 100% ethylene vinyl acetate and 0% to 60% linear low density polyethylene. Also disclosed are processes for making the oriented five layer films.

    摘要翻译： 分子取向的塑料膜具有五个分子取向层。 第一层提供通过膜的气体透过的屏障，并且具有0％至50％的尼龙或​​尼龙共聚物的组成，相反地，50％至100％的乙烯乙烯醇。 第二和第三粘合剂层粘附到第一层的表面，并且具有包含烯烃聚合物或共聚物或其共混物的组合物，其中具有羧基改性的组合物。 第四层和第五层在与第一层相对的相应表面上粘附到第二层和第三层。 第四层和第五层包含40％至100％的乙烯乙酸乙烯酯和0％至60％的线性低密度聚乙烯。 还公开了制备取向的五层膜的方法。

    Process for making microporous polyethylene hollow fibers
    96.
    发明授权
    Process for making microporous polyethylene hollow fibers 失效
    制造微孔聚乙烯中空纤维的方法

    公开(公告)号：US4530809A

    公开(公告)日：1985-07-23

    申请号：US474013

    申请日：1983-03-10

    申请人： Mizuo Shindo ,  Takashi Yamamoto ,  Osamu Fukunaga ,  Hisayoshi Yamamori

    发明人： Mizuo Shindo ,  Takashi Yamamoto ,  Osamu Fukunaga ,  Hisayoshi Yamamori

    IPC分类号： B29C55/00 ,  D01D5/24 ,  B29D7/24

    CPC分类号： D01D5/24 ,  B01D67/002 ,  B01D67/0027 ,  B01D69/02 ,  B01D69/08 ,  B01D71/26 ,  B01D2325/021 ,  Y10T428/2935 ,  Y10T428/2975

    摘要： Porous hollow fibers composed of a high density polyethylene the fibers having rectangular micropores that are oriented in the lengthwise direction of the fibers and having a porosity from 30 to 90% by volume are disclosed. Membranes composed of hollow fibers exhibit a water permeability of greater than 65 (ml/m.sup.2, hr, mmHg) as well as a human serum albumin permeability of greater than 30%. Such fibers are suited for use as filters, particularly as a membrane for simple fractionation of whole blood into it plasma and cellular components. The hollow fibers are obtained by spinning a high-density polyethylene under a high-draft condition followed by cold stretching and hot stretching, and without the use of any solvent or plasticizer.

    摘要翻译： 公开了由高密度聚乙烯构成的多孔中空纤维，该纤维具有沿纤维的长度方向取向并具有30〜90体积％的孔隙率的矩形微孔。 由中空纤维构成的膜表现出大于65（ml / m 2，hr，mmHg）的透水性以及大于30％的人血清白蛋白渗透性。 这种纤维适合用作过滤器，特别是作为将全血简单分级成等离子体和细胞成分的膜。 中空纤维通过在高牵伸条件下进行高密度聚乙烯的纺丝而得到，然后冷拉伸和热拉伸，而不使用任何溶剂或增塑剂。

    Manufacture of polyimide film by solvent casting
    97.
    发明授权
    Manufacture of polyimide film by solvent casting 失效
    通过溶剂铸造制造聚酰亚胺膜

    公开(公告)号：US4405550A

    公开(公告)日：1983-09-20

    申请号：US255028

    申请日：1981-04-17

    申请人： Gordon P. Hungerford

    发明人： Gordon P. Hungerford

    IPC分类号： B29C47/00 ,  B29B7/00 ,  B29C31/00 ,  B29C39/00 ,  B29C39/14 ,  B29C39/38 ,  B29C41/12 ,  C08J5/18 ,  B29D7/02 ,  B29D7/24

    CPC分类号： B29C41/26 ,  B29C55/143 ,  C08J5/18 ,  B29K2079/08 ,  C08J2379/08

    摘要： Polyimide film is manufactured by solvent casting onto a film-supporting surface. A solution of polyimide resin is dissolved in hot organic solvent to provide a casting dope. The film is coagulated by contacting an aqueous medium, substantially replacing the organic solvent in the film with water. Orienting the water-containing film and drying the oriented film to remove water produces a substantially homogeneous polyimide film having high electrical resistance, flexibility and strength.

    摘要翻译： 聚酰亚胺膜通过溶剂浇铸制成膜支撑表面。 将聚酰亚胺树脂溶液溶解在热的有机溶剂中以提供浇铸液。 膜通过与水性介质接触而凝固，基本上用水代替薄膜中的有机溶剂。 定向含水膜并干燥定向膜以除去水产生具有高电阻，柔韧性和强度的基本均匀的聚酰亚胺膜。

    Method of manufacture of layered film including layers having crossed directions of molecular orientation
    98.
    发明授权
    Method of manufacture of layered film including layers having crossed directions of molecular orientation 失效
    包括具有分子取向交叉方向的层的层状膜的制造方法

    公开(公告)号：US4358330A

    公开(公告)日：1982-11-09

    申请号：US183763

    申请日：1980-09-03

    申请人： Adolfo S. Aronovici

    发明人： Adolfo S. Aronovici

    IPC分类号： B29C49/00 ,  B29C47/00 ,  B29C47/06 ,  B29C47/20 ,  B29C55/00 ,  B29C55/16 ,  B29D7/24

    CPC分类号： B29C47/009 ,  B29C47/0023 ,  B29C47/0026 ,  B29C47/065 ,  B29C47/24 ,  B29C47/26 ,  B29C2791/007 ,  B29C47/0057 ,  B29C47/0059 ,  Y10S428/91

    摘要： A layered film of thermoplastic material and method of manufacturing the same are disclosed. The film is defined by a plurality of superposed layers, the material forming a pair of adjacent layers having molecular chains oriented in certain directions which respectively cross each other at an angle in a range of between 5.degree. and 90.degree.. The film is manufactured by heating solid thermoplastic material to its softening point, conveying the viscous molten mass so formed while mechanically working the same to an annular material shaping opening of a rotary die or matrix from which the material is discharged in the form of a tubular segment which is directed into the nip defined by a pair of rotating stretching cylinders which flatten the tubular segment to form the layered film and which are rotated at a speed which tends to orient the molecular chains in an axial or machine direction. Gas is injected into the space defined within the tubular segment which tends to orient the molecular chains in a circumferential or transverse direction. According to the invenion, the die is rotated at a certain speed which, in combination with the take off speed of the rotating cylinders and the blow ratio acts to relocate the frost line of the tubular segment so that the desired molecular orientation is imparted to the film layers prior to the solidification of the viscous molten material.

    摘要翻译： 公开了一种热塑性材料的分层膜及其制造方法。 该膜由多个重叠层限定，该材料形成一对相邻层，其分子链在某些方向上取向，分别以5°和90°之间的角度相互交叉。 该薄膜通过将固体热塑性材料加热至其软化点而制造，将粘合的熔融物料输送至如此形成的粘稠熔融物料，同时机械加工成旋转模具或基体的环形材料成型开口，该材料将以管状 其被引导到由一对旋转的拉伸圆筒限定的辊隙中，该旋转的拉伸圆筒使管状段平坦化以形成层状膜，并且以在轴向或机器方向上趋于使分子链取向的速度旋转。 将气体注入限定在管状段内的空间，其倾向于使分子链在周向或横向方向上定向。 根据该说明，模具以一定速度旋转，其结合旋转圆筒的脱离速度并且吹气比起作用以重新定位管状部分的霜冻线，使得所需的分子取向被赋予 在粘性熔融材料固化之前的薄膜层。

    Method and apparatus for making biaxially stretched tubular films
    99.
    发明授权
    Method and apparatus for making biaxially stretched tubular films 失效
    制造双轴拉伸管状薄膜的方法和装置

    公开(公告)号：US4341729A

    公开(公告)日：1982-07-27

    申请号：US105220

    申请日：1979-12-19

    申请人： Kohtaro Hayashi ,  Ko Morihara ,  Kohji Nakamura

    发明人： Kohtaro Hayashi ,  Ko Morihara ,  Kohji Nakamura

    IPC分类号： B29C55/00 ,  B29C49/00 ,  B29C55/26 ,  B29C55/28 ,  B29D7/24

    CPC分类号： B29C55/28

    摘要： An apparatus for making biaxially stretched tubular films of thermoplastic synthetic resin which permits operation in a stabilized manner and economically by using the hot air used in stretching a bubble again in heating a raw film. In said apparatus, a suction ring is provided in the section where a heated raw film is inflated by the gas filled therein under pressure, and the diameter of the resulting stretched bubble reaches its maximum diameter. The suction ring sucks the air used for heating the stretching part simultaneously with the air used for cooling it after stretching to attain a thermal interception effect between the stretching part and the cooling part after stretching. Air flow around the stretching bubble is made uniform.

    摘要翻译： 一种用于制造热塑性合成树脂的双轴拉伸管状膜的装置，其允许以稳定的方式操作，并且通过在加热原料膜中再次使用用于拉伸气泡的热空气而经济地进行操作。 在所述装置中，在加压的原料膜被加压的气体填充的部分中设置有吸入环，所得到的拉伸气泡的直径达到其最大直径。 吸引环吸引用于加热拉伸部的空气与拉伸后的冷却用空气同时拉伸，从而在拉伸后得到拉伸部和冷却部之间的热拦截效果。 拉伸气泡周围的气流均匀。

    Method of manufacturing shrinkable sleeves from a cross-linking plastics material
    100.
    发明授权
    Method of manufacturing shrinkable sleeves from a cross-linking plastics material 失效
    从交联塑料材料制造可收缩套筒的方法

    公开(公告)号：US4321292A

    公开(公告)日：1982-03-23

    申请号：US162072

    申请日：1980-06-23

    申请人： Harald Blomgvist

    发明人： Harald Blomgvist

    IPC分类号： B29C61/08 ,  B29D7/24

    CPC分类号： B29C61/08 ,  Y10S428/913 ,  Y10T428/1331

    摘要： The present invention discloses an improved heat shrinkable sleeve and method for making same in which an extruded sleeve piece is heated above the cross-linking temperature of the plastics material by immersing it in a heated bath while supporting its shape by fixed tubes and then expanding the sleeve piece while it is simultaneously cooled by means of a pair of rotating rolls which are movable away from each other.

    摘要翻译： 本发明公开了一种改进的热收缩套管及其制造方法，其中将挤出的套筒件加热到塑料材料的交联温度以上，将其浸入加热的浴中，同时通过固定管支撑其形状，然后将 同时通过可相对移动的一对旋转辊同时冷却。