会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明授权
    • Method for the preparation of pitches for spinning carbon fibers
    • 制备用于纺丝碳纤维的间距的方法
    • US4606808A
    • 1986-08-19
    • US603203
    • 1984-04-23
    • Yasuhiro YamadaTakeshi ImamuraMasao ShibataSeiji AritaHidemasa Honda
    • Yasuhiro YamadaTakeshi ImamuraMasao ShibataSeiji AritaHidemasa Honda
    • C10C3/10C10C3/00C10C3/02D01F9/15C10C1/00
    • C10C3/005C10C3/00
    • The invention provides a method for the preparation of a pitch spinnable into pitch filaments as a precursor of carbon fibers starting from a pitch material such as coal tar and coal tar pitch. Different from the conventional procedure involving hydrogenation of the starting pitch, the starting pitch in the inventive method is first heated together with an aromatic oil, preferably, in the presence of a cracking catalyst such as silica-alumina and zeolite at 350.degree. to 500.degree. C. for 10 to 60 minutes under no pressurization with hydrogen and, after removal of insoluble materials, then heated at a temperature of 430.degree. to 600.degree. C. The thus obtained pitch for spinning has good spinnability and the carbon fibers prepared from the pitch have a unique microscopic structure and excellent physical properties exceeding by far the conventional pitch-based carbon fibers and approximating the HP-grade carbon fibers prepared from polyacrylonitrile fibers.
    • 本发明提供了一种从沥青材料如煤焦油和煤焦油沥青开始制备作为碳纤维前体的沥青可旋转成沥青长丝的方法。 与起始沥青氢化的常规方法不同,首先将本发明方法中的起始沥青与芳烃油一起加热,优选在350至500℃的裂化催化剂如二氧化硅 - 氧化铝和沸石的存在下进行。 在不用氢气加压下进行10至60分钟,并且在除去不溶物之后,然后在430℃至600℃的温度下加热。由此得到的纺丝沥青具有良好的可纺性,并且由间距制备的碳纤维 具有独特的微观结构和优异的物理性能,超过了传统的沥青基碳纤维,并且接近由聚丙烯腈纤维制备的HP级碳纤维。
    • 5. 发明授权
    • Pitch-based carbon fibers and pitch compositions and precursor fibers
therefor
    • 沥青基碳纤维和沥青组合物及其前体纤维
    • US4590055A
    • 1986-05-20
    • US525702
    • 1983-08-23
    • Yasuhiro YamadaTakeshi ImamuraHidemasa HondaToru SawakiHideharu Sasaki
    • Yasuhiro YamadaTakeshi ImamuraHidemasa HondaToru SawakiHideharu Sasaki
    • C10C1/00C10C3/00D01F9/15D01F9/12
    • D01F9/15C10C1/00C10C3/00
    • The invention provides carbon fibers having mechanical properties equival to or even better than those of the polyacrylonitrile-based carbon fibers from a bituminous material, e.g. coal tar pitch, as the starting material. The starting pitch is first partially hydrogenated in tetrahydroquinoline under specific conditions followed by a heat treatment to give a pitch composition suitable for spinning which can be characterized by several parameters including the proportions of the carbons and hydrogens having different chemical shifts in the NMR analysis. The pitch composition for spinning is then subjected to spinning under specific conditions including the temperature condition for controlling the viscosity behavior of the molten pitch composition determined by use of the Andrade's equation and the pitch filament is then infusibilized in an oxidative atmosphere and carbonized in an inert atmosphere into carbon fibers having a tensile strength of at least 200 kg/mm.sup.2 and a tensile modulus of at least 10 tons/mm.sup.2.
    • 本发明提供具有与来自沥青材料的聚丙烯腈基碳纤维相当或甚至更好的机械性能的碳纤维,例如沥青。 煤焦油沥青,作为原料。 起始沥青在特定条件下首先在四氢喹啉中部分氢化,接着进行热处理,得到适用于纺丝的沥青组合物,其可以通过几个参数来表征,包括在NMR分析中具有不同化学位移的碳和氢的比例。 然后将纺丝沥青组合物在特定条件下进行纺丝,包括用于通过使用安德拉德方程确定的用于控制熔融沥青组合物的粘度行为的温度条件,然后将沥青丝在氧化气氛中不熔化并以惰性碳化 气氛变成具有至少200kg / mm 2的拉伸强度和至少10吨/ mm 2的拉伸模量的碳纤维。
    • 8. 发明授权
    • Information, transformation and reverse transformation processing
    • 信息,转型和逆向转换处理
    • US08131787B2
    • 2012-03-06
    • US12123991
    • 2008-05-20
    • Takeshi ImamuraKent TamuraSatoshi MakinoToshiro Takase
    • Takeshi ImamuraKent TamuraSatoshi MakinoToshiro Takase
    • G06F7/00G06F17/30
    • G06F17/227Y10S707/99942
    • A transformation processing system input data including a data record area for storing target date and a transformation processing identification information record area for storing transformation processing identification information about transformation processing executed upon the target data. The transformation processing system includes: a reverse transformation information recording unit which records a target data pointer indicating the data record area in transformed data, a transformation processing identification information pointer indicating the transformation processing identification information record area, and reverse transformation processing identification information about reverse transformation processing; a target data transformation unit which transforms the target data and records it in the data record area; and a transformation processing identification information recording unit which adds the transformation processing identification information about the transformation processing executed by the target data transformation unit to the transformation processing identification information record area in the input data.
    • 变换处理系统输入数据,包括用于存储目标日期的数据记录区域和用于存储关于在目标数据上执行的变换处理的变换处理识别信息的变换处理识别信息记录区域。 变换处理系统包括:逆变换信息记录单元,其在变换数据中记录指示数据记录区的目标数据指针,指示变换处理识别信息记录区的变换处理识别信息指针,以及反转变换处理识别信息 转换处理; 目标数据变换单元,其转换目标数据并将其记录在数据记录区域中; 以及变换处理识别信息记录单元,其将关于由目标数据变换单元执行的变换处理的变换处理识别信息添加到输入数据中的变换处理识别信息记录区域。