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    • 2. 发明授权
    • Method for production of high-tenacity, fine-denier polyvinyl alcohol
fiber
    • 高韧度,细旦聚乙烯醇纤维的生产方法
    • US4612157A
    • 1986-09-16
    • US690578
    • 1985-01-11
    • Tsuneo GenbaAkio MizobeMasaki OkazakiIsao Sakuragi
    • Tsuneo GenbaAkio MizobeMasaki OkazakiIsao Sakuragi
    • D01F6/50D01F6/14D02G3/48
    • D01F6/14
    • A fine-denier, high-tenacity, water-resistant polyvinyl alcohol fiber is produced by dissolving a polyvinyl alcohol having an average degree of polymerization between 1,200 and 3,000, boric acid or a salt thereof in a proportion of 0.5 to 5 weight percent relative to said polyvinyl alcohol and an acid for adjusting a final spinning solution to pH 5 or less in water to prepare an aqueous solution containing 8 to 14 weight percent of said polyvinyl alcohol, discharging said aqueous solution as said spinning dope from a spinneret nozzle having an average orifice diameter of 0.02 to 0.04 millimeters into a bath comprising an aqueous solution containing alkali and dehydrating salt at a bath draft within a range of 10 to -60 percent, and finally stretching the resulting tow at least 10-fold. The fine-denier fiber thus obtained has a marked reinforcing effect on various materials, particularly inorganic hydraulic materials such as cement.
    • 通过将平均聚合度为1200〜3000的聚乙烯醇与硼酸或其盐的比例相对于0.5〜5重量%的比例溶解,得到细旦,高强度,耐水性聚乙烯醇纤维 所述聚乙烯醇和用于将最终纺丝溶液调节至pH为5以下的酸的酸,以制备含有8至14重量%的所述聚乙烯醇的水溶液,将所述水溶液作为所述纺丝原液从具有平均值的喷丝头喷嘴排出 孔直径为0.02至0.04毫米,包括含有碱和脱水盐的水溶液的浴,浴温为10至-60%,最后将所得的丝束拉伸至少10倍。 这样得到的细旦纤维对各种材料,特别是无机水硬性材料如水泥具有明显的增强效果。
    • 3. 发明授权
    • Process for producing hydraulically setting extruding materials
    • 生产液压成型挤出材料的方法
    • US4524042A
    • 1985-06-18
    • US515545
    • 1983-07-20
    • Tsuneo GenbaAkio MizobeMasaki Okazaki
    • Tsuneo GenbaAkio MizobeMasaki Okazaki
    • B28B1/52B28B3/20C04B16/06C04B28/02D02G1/20
    • C04B28/02C04B16/0641
    • In a process for producing fiber-reinforced hydraulically setting extruding materials, the process which comprises, not adding the reinforcing fiber in the form of single fibers to the starting materials, but employing it as collected yarns by collecting the single fibers with a collecting agent, uniformly dispersing them in the starting materials, then releasing the collected condition of said dispersed collected yarns and splitting into single fibers by swelling and dissolution of the collecting agent and by the shear force by a screw etc., thereby the dispersion is improved.The single fibers having a great aspect ratio which have been released from the collected condtion are uniformly dispersed in the extruding material, and a remarkable reinforcing effect is obtained.
    • 在制造纤维增强液压挤出材料的方法中,该方法包括不将单纤维形式的增强纤维加入起始原料中,而是通过用收集剂收集单纤维将其作为收集的纱线, 将它们均匀分散在起始原料中,然后释放所分散收集的纱线的收集状态,通过收集剂的溶胀和溶解以及通过螺杆等的剪切力将其分裂成单纤维,从而改善了分散体。 已经从收集的条件中释放的具有很大纵横比的单纤维均匀地分散在挤出材料中,并且获得显着的增强效果。