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公开(公告)号：US4185148A
公开(公告)日：1980-01-22
申请号：US794602
申请日：1977-05-06
IPC分类号： B29C47/00 , B29C47/88 , C08J5/18 , C08F110/06
CPC分类号： C08J5/18 , B29C47/0026 , B29C47/8825 , B29C47/8895 , B29C47/0057 , B29C47/0059 , C08J2323/12
摘要： A polypropylene film which is useful for electrical devices is produced by biaxially stretching an unstretched polypropylene molded article having, on at least one side, a surface layer having .beta.-form crystals, of mean diameter over 7 .mu.m, under such conditions that the stretching temperature at the stretch initiation point is in the range of 145.degree. to 176.degree. C., and the stretch ratio in one direction is less than a factor of 8. The resulting stretched polypropylene film is characterized by excellent mechanical properties, a very dense inner structure, and high air-tightness. The surface of the film has an efficiently roughened, fine, uneven structure containing crater-like patterns or an isotropic network structure and an anisotropic network structure, which is aligned in the extrusion direction. Therefore, the polypropylene film of the present invention can be readily impregnated with insulating oils, and hence can be used in various electrical devices, such as capacitors, electric cables, transformers and the like.
摘要翻译： 可用于电气装置的聚丙烯薄膜是通过双轴拉伸未拉伸的聚丙烯模塑制品，其在至少一侧具有平均直径大于7μm的具有β型晶体的表面层，在拉伸 拉伸起始点的温度在145℃至176℃的范围内，一个方向的拉伸比小于8倍。得到的拉伸聚丙烯薄膜的特征在于优异的机械性能，非常致密的内部 结构高，气密性高。 膜的表面具有包含火山口状图案或各向同性网络结构和在挤出方向上排列的各向异性网络结构的有效地粗糙，细小的不均匀结构。 因此，本发明的聚丙烯薄膜可以容易地用绝缘油浸渍，因此可以用于电容器，电缆，变压器等各种电气装置。
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公开(公告)号：US4138520A
公开(公告)日：1979-02-06
申请号：US635373
申请日：1975-11-25
申请人： Hiroshi Sato , Munetsugu Nakatani , Hiroshi Nakatsui , Hideto Kakita , Hiroyuki Shimoyama , Naoki Mochida , Shuichi Sugimori
发明人： Hiroshi Sato , Munetsugu Nakatani , Hiroshi Nakatsui , Hideto Kakita , Hiroyuki Shimoyama , Naoki Mochida , Shuichi Sugimori
CPC分类号： B29C47/0009 , B29C2947/9259 , B29C2947/92704 , B29C2947/92885 , B29C2947/92895 , B29C2947/92904 , B29C47/0004 , B29C47/0026 , B29C47/0042 , B29C47/0057 , B29C47/0059 , B29C47/92 , Y10T428/24355 , Y10T428/24446 , Y10T428/31938
摘要： A translucent polypropylene film containing no .beta.-type crystallization nucleating agent which has, on at least one side, a surface layer composed of a two- or three-dimensional network structure, in which at least 1,000 network elements constituting the said network structure are present per cm.sup.2 of the film surface. The said film is obtained in such a manner that an unstretched polypropylene film having, on at least one side, a surface layer having a K value, which represents the amount of .beta.-type crystals present at a portion from the surface to a thickness of 10% in the thick-wall direction, of at least 0.1 is biaxially stretched under such conditions that the stretching temperature at the stretch initiation point is in the range of 145.degree. to 176.degree. C. and the stretch ratio in one direction is less than 8 times. The above-mentioned film is excellent in mechanical properties, quite dense in inner structure and high in airtightness, and the surface thereof has a fine uneven structure or fibril-like network structure, and has a favorable haze. Accordingly, the said film is used as a film for packing medicines, hygienic materials and foods, and as an insulating oil-impregnated dielectric film for condensers.
摘要翻译： 不含β型结晶成核剂的半透明聚丙烯薄膜，其至少在一侧具有由二维或三维网络结构构成的表面层，其中至少有1,000个构成所述网络结构的网络元件 每cm 2的膜表面。 所述膜是这样获得的，即在至少一侧具有K值表面层的未拉伸聚丙烯膜表示存在于从表面到厚度的部分的β型晶体的量 至少0.1的厚壁方向的10％在拉伸起始点的拉伸温度在145〜176℃的范围内进行双轴拉伸，一个方向的拉伸比小于 8次。 上述膜的机械性能优异，内部结构相当密集，气密性高，其表面具有微细的不均匀结构或原纤维状网状结构，具有良好的雾度。 因此，所述膜用作包装药物，卫生材料和食品的膜，以及用作电容器的绝缘油浸电介质膜。
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公开(公告)号：US4206080A
公开(公告)日：1980-06-03
申请号：US874634
申请日：1978-02-02
申请人： Hiroshi Sato , Munetsugu Nakatani , Naoki Mochida
发明人： Hiroshi Sato , Munetsugu Nakatani , Naoki Mochida
CPC分类号： C02F1/681 , B01D17/0202 , B01J20/22 , Y10S210/925
摘要： An oil-adsorbing composition useful for removing oil from oil-contaminated water comprises a granulated mixture of 5-80 weight % of an inorganic filler capable of adsorbing oil and 95-20 weight % of a cross-linked polymer. The composition is melt-kneaded by mixing and crushing the ingredients while cross-linking the polymer.
摘要翻译： 用于从油污染的水中除去油的油吸附组合物包括5-80重量％的能够吸附油的无机填料和95-20重量％的交联聚合物的颗粒混合物。 通过在交联聚合物的同时混合和粉碎成分来将组合物熔融捏合。
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公开(公告)号：US4780301A
公开(公告)日：1988-10-25
申请号：US66629
申请日：1987-06-04
摘要： The invention relates to a process for producing carbon fibers which comprises a continuous flame-resisting treatment of acrylic fibers in bundle form containing at least 90% by weight of acrylonitrile in an oxidizing atmosphere at temperatures of 250.degree. to 350.degree. C. by using a plurality of flame-resisting furnace different in heat treatment temperature under such conditions that the fiber density .rho.n after each stage of flame-resisting treatment may be maintained on the level defined by a specific conditional expression and so that the fiber density .rho.k after completion of the flame-resisting treatment may be from 1.34 to 1.40 g/ml, and successively are subjected to carbonizing treatment in an inert atmosphere.
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5.发明授权Carbon fibers having high tenacity and high modulus of elasticity and process for producing the same 失效具有高强度和高弹性模量的碳纤维及其制造方法
公开(公告)号：US5281477A
公开(公告)日：1994-01-25
申请号：US682383
申请日：1991-04-09
CPC分类号： D01F9/22 , D01F9/32 , Y10T428/2918
摘要： A carbon fiber of a high tenacity and a high modulus of elasticity having a fiber diameter of 1 to 6 .mu.m, a strand tenacity of 430 kg/mm.sup.2 or more, a strand modulus of elasticity of 28 ton/mm.sup.2 or more and a density of 1.755 g/cm.sup.3 or more, and a process for producing the same.The above-mentioned carbon fiber has extremely useful properties as a raw material for composite materials to be used not only for sporting goods such as fishing rods or golf clubs but also in aerospace industries.
摘要翻译： 一种高强度和高弹性模量的碳纤维，其纤维直径为1〜6（my）m，绞合强度为430kg / mm 2以上，弹性模量为28ton / mm 2以上， 密度为1.755g / cm 3以上，以及其制造方法。 上述碳纤维作为复合材料的原料具有非常有用的特性，不仅用于诸如钓鱼竿或高尔夫球杆之类的体育用品，而且用于航天工业。
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公开(公告)号：US4609540A
公开(公告)日：1986-09-02
申请号：US733797
申请日：1985-05-14
摘要： A process for producing a carbon fiber having a tenacity of 450 kg/mm.sup.2 or more, preferably 500 kg/mm.sup.2 or more, and a modulus of elasticity of 25 ton/mm.sup.2 or more which comprises subjecting a polyacrylonitrile-type fiber to a flame-resisting treatment in a flame-resisting treatment furnace provided with a plural number of driving rolls in an oxidizing atmosphere at 200.degree. to 400.degree. C. under application of multistep elongation, during said treatment the respective percentage of elongation in said multistep elongation being set respectively at a value which is equal to or within .+-.3% of the value of the percentage of elongation En indicating an inflection point Pn obtainable from the load and the percentage of elongation determined in advance by experimental measurements, and then subjecting the treated fiber to carbonization.
摘要翻译： 制造强度为450kg / mm2以上，优选为500kg / mm2以上的弹性模量为25ton / mm 2以上的碳纤维的制造方法，其特征在于，将聚丙烯腈型纤维进行阻燃处理， 在施加多段伸长的情况下，在200-400℃的氧化气氛中在具有多个驱动辊的阻燃处理炉中进行耐蚀处理，在所述处理期间分别设定所述多段伸长率的相应百分率 在等于或者在表示从负载得到的拐点Pn的伸长百分比En的值的±3％的值，以及通过实验测量预先确定的伸长百分比之后，然后对经处理的纤维 碳化。
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7.发明授权
公开(公告)号：US5051216A
公开(公告)日：1991-09-24
申请号：US401775
申请日：1989-09-01
摘要： Acrylonitrile precursor fibers are subjected to a flame-resisting treatment, in an oxidizing atmosphere, while being elongated at least 3%, until a density of 1.22 g/cm.sup.3 is reached. The fibers are further treated to increase density up to 1.40 g/cm.sup.3, and then heat treated while undergoing further elongation, followed by higher temperature heat treatment while under tension. The resulting fibers have excellent properties, including high strand tenacity, high strand modulus, and high density.
摘要翻译： 丙烯腈前体纤维在氧化气氛中进行阻燃处理，同时延伸至少3％，直到达到1.22g / cm 3的密度。 进一步处理纤维以增加至1.40g / cm 3的密度，然后在进一步伸长的同时热处理，然后在张力下进行更高温度的热处理。 所得纤维具有优异的性能，包括高链强度，高链模量和高密度。
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