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    • 1. 发明授权
    • Porous regenerated cellulose hollow fiber and process for preparation
thereof
    • 多孔再生纤维素中空纤维及其制备方法
    • US4604326A
    • 1986-08-05
    • US604512
    • 1984-04-27
    • Seiichi ManabeMichitaka IwataMamoru Inoue
    • Seiichi ManabeMichitaka IwataMamoru Inoue
    • B01D71/10D01D5/24D01F1/08D01F2/04D02G3/00
    • B01D71/10B01D69/08B01D69/087D01F2/04Y10T428/2935Y10T428/2975
    • A porous regenerated cellulose hollow fiber obtained by a micro-phase-separation method is described. The hollow fiber is characterized in that the viscosity average molecular weight is at least 5.times.10.sup.4, each of the average pore diameter D.sub.1 on the inner wall surface of the hollow fiber and the average pore diameter D.sub.2 on the outer wall surface is 0.02 to 10 .mu.m, the in-plane porosity Pr on the outer wall surface is at least 10%, and the hollow fiber comprises a wall thickness portion having pores piercing therethrough between the inner wall surface and outer wall surface and a hollow portion extending continuously over the entire fiber length. The hollow fiber is prepared by a process characterized in that at the steps of extruding a cuprammonium solution of a cellulose from an annular spinning orifice and coagulating, regenerating and water-washing the extrudate, the spinning solution is extruded from an outer annular spinning orifice and a liquid having a coagulating action to the spinning solution is extruded from a central spinning orifice, and micro-phase-separation is caused to occur before the coagulation.
    • 描述通过微相分离方法获得的多孔再生纤维素中空纤维。 中空纤维的特征在于,中空纤维的内壁面上的平均孔径D1和外壁面的平均孔径D2的粘均分子量为至少5×10 4,为0.02〜10μm 外壁表面上的面内孔隙率Pr至少为10%,中空纤维包括在内壁表面和外壁表面之间具有穿孔的壁厚部分和在整个纤维上连续延伸的中空部分 长度。 中空纤维是通过以下方法制备的,其特征在于在从环形纺丝口挤出纤维素的铜铵溶液并使挤出物凝结,再生和水洗的步骤中,纺丝溶液从外环形纺丝孔挤出, 从中心纺丝口挤出对纺丝溶液具有凝结作用的液体,在凝固前发生微相分离。
    • 3. 发明授权
    • Porous regenerated cellulose membrane and process for the preparation
thereof
    • 多孔再生纤维素膜及其制备方法
    • US4581140A
    • 1986-04-08
    • US443074
    • 1982-11-19
    • Seiichi ManabeMichitaka IwataMamoru Inoue
    • Seiichi ManabeMichitaka IwataMamoru Inoue
    • B01D71/10C08L1/06B01D13/00
    • B01D71/10C08L1/06
    • A porous regenerated cellulose membrane consisting essentially of cellulose molecules having a viscosity average molecular weight of at least about 5.times.10.sup.4, the crystalline region of the cellulose molecules being substantially cellulose II crystal, cellulose III-2 crystal or the mixture thereof and having a degree of crystal orientation at a face of (101) in the crystalline region in the direction of the surface of the membrane of at most about 40%, the membrane having a dynamic modulus at 30.degree. C. measured with a frequency of 110 Hz of at least about 1.5.times.10.sup.8 (100-pr.rho.) dyn/cm.sup.2 wherein Pr.rho. is a porosity by percentage, a mean pore size represented by D(.mu.m) of about 0.01 .mu.m to about 20 .mu.m and at the same time a porosity in a plane of at least one plane of at least about 30% or a number of pores in a plane per 1 cm.sup.2 of about 6.times.10.sup.5 /D to about 3.times.10.sup.7 /D; and a process for preparing the same.
    • 基本上由粘均分子量为至少约5×10 4的纤维素分子组成的多孔再生纤维素膜,纤维素分子的结晶区域基本上是纤维素II晶体,纤维素III-2晶体或其混合物,并且具有一定程度的结晶 在膜表面方向的结晶区域的(101)面的取向至多约为40%,膜的动态模量在30℃下以110Hz的频率测量为至少约 1.5×10 8(100-pr rho)dyn / cm 2,其中Pr rho是以百分比表示的孔隙率,由D(μm)表示的平均孔径为约0.01μm至约20μm,同时在 至少一个平面的平面为至少约30%或每平方厘米约1×10 5 / D至约3×10 7 / D的平面中的孔数; 及其制备方法。
    • 4. 发明授权
    • Polyester fiber dyeable under normal pressure
    • 聚酯纤维在常压下可染色
    • US4426516A
    • 1984-01-17
    • US363628
    • 1982-03-30
    • Tomio KurikiSeiichi Manabe
    • Tomio KurikiSeiichi Manabe
    • D01F6/62D01D5/098C08G63/70
    • D01F6/62D01D5/098
    • A fiber consisting essentially of polyethylene terephthalate capable of being dyed under normal pressure and having an initial modulus at 30.degree. C. of about 55 g/d to about 130 g/d, a relationship between a peak temperature ]T.sub.max (.degree.C.)] at the peak of a dynamic mechanical loss tangent (tan .delta.) measured with a frequency of 110 Hz and a peak value of the dynamic mechanical loss tangent [(tan .delta.).sub.max ] represented by the formula:(tan .delta.).sub.max .ltoreq.1.times.10.sup.-2 (T.sub.max -105)and a (tan .delta.).sub.max of about 0.14 to about 0.30 and a dynamic mechanical loss tangent at 220.degree. C. (tan .delta..sub.220) of at most about 0.055. The fiber is produced by subjecting a polyethylene terephthalate fiber obtained at a spinning speed of at least about 4000 m/min. to heat treatment at a temperature ranging from a temperature at which a dynamic modulus (E') of the fiber deviates from a tangent line at 180.degree. C. of a logarithm of the E' of the fiber-temperature curve (T.sub.min) plus 10.degree. C. to a temperature of completion of melting (T.sub.m.sbsb.3) at a melting curve of the fiber measured by a differential scanning calorimeter (DSC) plus 10.degree. C.
    • 基本上由聚对苯二甲酸乙二醇酯组成的纤维,其能够在常压下染色,在30℃下的初始模量为约55g / d至约130g / d,峰值温度Tmax(℃) ]在以110Hz的频率测量的动态机械损耗角正切(tanδ)的峰值处,以及由下式表示的动态机械损耗角正切[(tanδ)max]的峰值:(tanδ)max < = 1×10 -2(T max-105)和(tanδ)max为约0.14至约0.30,并且在220℃下的动态机械损耗角正切(tanδ220)为至多约0.055。 该纤维是通过以至少约4000m /分钟的纺丝速度获得的聚对苯二甲酸乙二醇酯纤维进行生产的。 在从纤维的动态弹性模量(E')与180℃的切线偏离的温度相对于纤维 - 温度曲线的E'的对数(Tmin)加上10的温度下进行热处理 通过差示扫描量热计(DSC)加10℃在纤维的熔解曲线下达到熔融完成温度(Tm3)。