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    • 5. 发明授权
    • Production of fibrous alkali metal hexatitanates
    • 生产金属碱金属十六烷基硫酸盐
    • US3760068A
    • 1973-09-18
    • US3760068D
    • 1971-03-23
    • BAYER AG
    • WINTER GZIRNGIBL HMANSMANN M
    • C01G23/00C04B35/622D01F9/08
    • C04B35/62231C01G23/005C01P2004/10C01P2004/54C01P2004/61
    • In the manufacture of fibrous, water-insoluble alkali metal hexatitanates of the composition Me2Ti6O13, wherein Me is an alkali metal except lithium by reaction of TiO2 with an alkali metal compound which gives a basic reaction under the reaction conditions, the improvement which comprises effecting the reaction in a sulfate melt at a temperature up to about 1,300*C. The sulfate melt is preferably an alkali metal sulfate. The TiO2 may be formed in situ by addition of some other titanium compound. The alkali metal compound preferably comprises sodium, potassium, rubidium or caesium and, expressed as the oxide, is present in about one-half to one-sixth the molar amount of the TiO2.
    • 在制备组合物Me2Ti6O13的纤维状,不溶于水的碱金属六钛酸盐时,其中Me是通过TiO 2与在反应条件下产生碱性反应的碱金属化合物的反应而除了锂之外的碱金属,其改进包括影响 在高达约1300℃的温度下在硫酸盐熔体中反应。硫酸盐熔体优选为碱金属硫酸盐。 可以通过添加一些其它钛化合物原位形成TiO 2。 碱金属化合物优选包含钠,钾,铷或铯,并且以氧化物的形式表现为钛的摩尔量的约二分之一至六分之一。
    • 6. 发明授权
    • Process for the production of carbon fibers
    • 生产碳纤维的工艺
    • US3723609A
    • 1973-03-27
    • US3723609D
    • 1970-10-07
    • BAYER AG
    • MANSMANN MWINTER GPAMPUS GSCHON N
    • D01F9/16D01F9/17D01F9/18D01F9/21D01F9/24D01F9/26D01F9/28C01B31/07
    • D01F9/18D01F9/16D01F9/17D01F9/21D01F9/24D01F9/245D01F9/26D01F9/28Y10S264/19
    • In the production of carbon fibers wherein a carbon-containing fiber-forming material is spun as a solution, the spun-filaments are converted to solid fibrous material, and the fibrous material is carbonized, the improvement which comprises including in said solution at least one fiber-forming high polymer at a concentration of about 0.001 to 10 percent by weight and a greater amount of a carbon source comprising at least one carboncontaining organic material having a softening or melting point in excess of about 80* C., whereby the solution of said carbon containing material is rendered spinnable by addition of said fiber-forming high polymer, said carbon containing organic material serving as the source of carbon for the carbon fiber; the fiber may thereafter be graphitized. The spinning solution used for fiber production is preferably a solution in a volatile solvent so that it may be dry spun. The carbon source in said solvent by itself would not be spinnable and may be a monomer or low polymer.
    • 在其中将含碳纤维形成材料作为溶液纺丝的碳纤维的生产中,纺丝长丝被转化为固体纤维材料,并且纤维材料被碳化,其改进包括在所述溶液中包含至少一种 浓度为约0.001至10重量%的纤维形成高聚物和更大量的包含至少一种软化点或熔点超过约80℃的含碳有机材料的碳源,由此, 所述含碳材料的溶液通过加入所述形成纤维的高分子,所述含碳有机材料作为碳纤维的碳源,使其可纺丝; 之后纤维可被石墨化。 用于纤维生产的纺丝溶液优选是挥发性溶剂中的溶液,使其可以是干纺的。 所述溶剂中的碳源本身不可纺,可以是单体或低聚物。