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    • 5. 发明授权
    • Method for the preparation of carbon structures
    • 碳结构的制备方法
    • US3927186A
    • 1975-12-16
    • US33663673
    • 1973-02-28
    • CHEMOTRONICS INTERNATIONAL INC
    • VINTON CLARENCE SFRANKLIN CHARLES H
    • C04B35/524C04B35/83D01F9/24C01B31/07
    • D01F9/24C04B35/524C04B35/83D01F9/245
    • A rapid method for forming carbon structures from flexible polyurethane resin strands, which faithfully reproduces the geometry of the uncarbonized polyurethane resin strands, the first step of which comprises infusing the polyurethane resin strands with a curable furan resin or resin precursor. The furan resin as a curable liquid resin or resin precursor swells the polyurethane strands during infusion and forms a gel-like alloy structure with the polyurethane resin as the solid phase. An important step in the method which assists in preventing cracking during carbonization and which is essential to faithful strand geometry reproduction is the substantial removal of the liquid resin or resin precursor coating from the polyurethane strand surfaces after the infusion or swelling step. The method allows rapid carbonization with less than about five hours heating of the infused structures without cracking. The resulting carbon strands remain crack-free and strong even when exposed to rapid temperature variations. The carbonized strands are preferably in the form of vitreous or glassy carbon and are particularly useful for high temperature applications in the presence of neutral or reducing gas conditions or in a vacuum.
    • 一种用于从柔性聚氨酯树脂线形成碳结构的快速方法,其忠实地再现了未碳化的聚氨酯树脂线的几何形状,其第一步包括用可固化的呋喃树脂或树脂前体浸渍聚氨酯树脂线。 作为可固化液体树脂或树脂前体的呋喃树脂在输注期间使聚氨酯线膨胀,并以聚氨酯树脂为固相形成凝胶状合金结构。 有助于防止碳化过程中的裂纹,并且对于忠实的股线几何形状重现是必要的方法中的重要步骤是在输注或膨胀步骤之后从聚氨酯线股表面上显着除去液体树脂或树脂前体涂层。 该方法允许快速碳化,少于约5小时加热输注结构而不开裂。 即使暴露于快速的温度变化,所得的碳链也保持无裂纹和强烈的强度。 碳化的链优选为玻璃状或玻璃状碳的形式,并且对于在中性或还原性气体条件或真空中存在的高温应用是特别有用的。
    • 9. 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。