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    • 7. 发明公开
    • Reinforcing fibrous material
    • FaserigesVerstärkung物质。
    • EP0301765A2
    • 1989-02-01
    • EP88306713.4
    • 1988-07-21
    • MITSUI PETROCHEMICAL INDUSTRIES, LTD.
    • Tokita, SuguruInagaki, Hajime
    • D01F6/04D01F11/06
    • D01F6/04D01F11/06Y10T428/2913Y10T428/298Y10T428/31663
    • Reinforcing fibrous material having an improved adhesion, consists essentially of a surface-treated, molecularly oriented, silane-crosslinked ultra-high-molecular-weight polyethylene fibre, wherein the measurement is conducted under restraint conditions by using a differential scanning calorimeter, the crosslinked polyethylene fibre has at least two crystal melting peaks (Tp) at temperatures higher by at least 10°C than the inherent crystal melting temperature (Tm) of the ultra-high-molecular-weight polyethylene determined as the main peak at the time of the second temperature elevation, the heat of fusion based on these crystal melting peaks (Tp) is at least 50% of the whole heat of fusion, and the sum of heat of fusion of high-temperature side peaks (Tp1) at temperatures in the range of from (Tm + 35)°C to (Tm + 120)°C is at least 5% of the whole heat of fusion, and wherein the crosslinked polyethylene fibre has a surface containing at least 8 carbon atoms, especially at least 10 carbon atoms, per 100 carbon atoms, as determined by the electron spectroscopy for chemical analysis.
    • 具有改善的粘合力的增强纤维材料基本上由表面处理的分子取向的硅烷交联的超高分子量聚乙烯纤维组成,其中通过使用差示扫描量热计,在限制条件下进行测量,所述交联聚乙烯 纤维在比作为第二个时间的主峰确定的超高分子量聚乙烯的固有晶体熔融温度(Tm)高至少10℃的温度下具有至少两个晶体熔融峰(Tp) 基于这些晶体熔融峰(Tp)的融合热量为整个熔化热的至少50%,高温侧峰(Tp1)的熔化热的总和在 从(Tm + 35)℃到(Tm + 120℃)的温度是整个熔化热的至少5%,其中交联的聚乙烯纤维具有含有至少8个碳原子的表面,特别是 至少10个碳原子,每100个碳原子,通过化学分析的电子光谱测定。
    • 8. 发明公开
    • Acrylic fibres
    • Acrylfasern。
    • EP0294135A2
    • 1988-12-07
    • EP88304918.1
    • 1988-05-31
    • COURTAULDS PLC
    • Heald, Alexander JamesGinns, PeterRobinson (nee Sanders), JanetPotter, Christopher David
    • D01F6/18D01D5/247D01F11/06
    • D01F11/06D01F6/18
    • Porous acrylic and modacrylic fibre having a porosity above 0.3 cm³g⁻¹, an internal surface area of at least 50 m²g⁻¹ (when its decitex is greater than 2.5) or at least 35 m²g⁻¹ (when its decitex is not more than 2.5), and a water imbibition of at least 65% (when its decitex is greater than 2.5) or at least 55% (when its decitex is not more than 2.5) and other porous acrylic and modacrylic fibre can be produced by contacting never-dried, standard wet-spun fibre with a water-miscible organic liquid which is a non-­solvent for the fibre and has a boiling point below the glass transition temperature of the fibre to exchange the water in the fibre for the organic liquid, and then drying the fibre so as to remove the organic liquid without collapsing the fibre. Porous fibre made in this way or other porous acrylic or modacrylic fibre in dry or never-­dried state can be impregnated with an additive either by immersion in a solution of the additive in an organic liquid of the above type or by immersion in a solution or liquid dispersion of the additive in a different liquid followed by exchange of that liquid with an organic liquid of the above type, followed in either case by drying to remove the liquid. The drying conditions can be controlled to provide uncollapsed fibres, fully collapsed fibres or, preferably, novel partially collapsed fibres, from which the additive is released in a sustained fashion at a rate determined by the degree of collapse of the fibres.
    • 具有孔隙率在0.3cm 3 / g以上的多孔丙烯酸和改性聚丙烯酸纤维,内表面积至少为50m 2 / g(当其分子量大于2.5时) 或至少35m 2 g(当其分数不大于2.5时),并且吸水率至少为65%(当其分子量大于2.5)或至少55%( 当其分子量不超过2.5时)和其它多孔丙烯酸和改性聚丙烯腈纤维可以通过将未干燥的标准湿纺纤维与作为纤维的非溶剂的水混溶性有机液体接触而制备,并且具有沸腾 低于纤维的玻璃化转变温度以交换有机液体的纤维中的水,然后干燥纤维,以除去有机液体而不使纤维塌陷。 以这种方式制得的多孔纤维或干燥或未干燥状态的其它多孔丙烯酸或改性聚丙烯酸纤维可以通过浸入添加剂在上述类型的有机液体中的溶液中或通过浸入溶液或 将该添加剂在不同液体中的液体分散,然后用上述类型的有机液体进行该液体的交换,然后通过干燥除去液体。 可以控制干燥条件以提供未收缩的纤维,完全塌缩的纤维,或者优选新颖的部分塌陷的纤维,其中添加剂以由纤维塌陷度确定的速度以持续的方式从其中释放出来。