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    • 113. 发明授权
    • Method for preparing polyaniline fibers
    • 聚苯胺纤维的制备方法
    • US06123883A
    • 2000-09-26
    • US334719
    • 1999-06-16
    • Benjamin R. MattesHsing-Lin Wang
    • Benjamin R. MattesHsing-Lin Wang
    • C08J5/18C08G73/00C08G73/02D01F6/26D01F6/76H01B1/12D01D5/06D01F1/09D01F6/96
    • C08G73/0266D01F6/76H01B1/128
    • Stable, concentrated solutions of high molecular weight polyaniline. In order to process high quality fibers and other articles possessing good mechanical properties, it is known that solution concentrations of the chosen polymer should be in the range from 15-30% (w/w). Moreover, it is desirable to use the highest molecular weight consistent with the solubility properties of the polymer. However, such solutions are inherently unstable, forming gels before processing can be achieved. The present invention describes the addition gel inhibitors (GIs) to the polymer solution, thereby permitting high concentrations (>15% (w/w)) of high molecular weight ((M.sub.w)>120,000, and (M.sub.n)>30,000) emeraldine base (EB) polyaniline to be dissolved. Secondary amines have been used for this purpose in concentrations which are small compared to those which might otherwise be used in a cosolvent role therefor. The resulting solutions are useful for generating excellent fibers, films, coatings and other objects, since the solutions are stable for significant time periods, and the GIs are present in too small concentrations to cause polymer deterioration. It is demonstrated that the GIs found to be useful do not act as cosolvents, and that gelation times of the solutions are directly proportional to the concentration of GI. In particular, there is a preferred concentration of GI, which if exceeded causes structural and electrical conductivity degradation of resulting articles. Heating of the solutions significantly improves solubility.
    • 稳定的高分子量聚苯胺浓缩溶液。 为了处理具有良好机械性能的高品质纤维和其它制品,已知所选聚合物的溶液浓度应在15-30%(w / w)的范围内。 此外,期望使用与聚合物的溶解性质一致的最高分子量。 然而,这种溶液固有地不稳定,可以在加工前形成凝胶。 本发明描述了对聚合物溶液的加成凝胶抑制剂(GI),从而允许高分子量((Mw)> 120,000和(Mn)> 30,000)翠绿亚胺碱的高浓度(> 15%(w / w) (EB)聚苯胺溶解。 为了这个目的已经使用了仲胺,其浓度与可能用于其共溶剂作用的那些相比,其用量较小。 所得到的溶液可用于产生优异的纤维,膜,涂层和其它物体,因为溶液在相当长的时间内是稳定的,并且GI以太小的浓度存在以引起聚合物劣化。 证明发现有用的GI不能作为共溶剂,溶液的凝胶化时间与GI的浓度成正比。 特别地,存在优选的GI浓度,如果超过,则导致所得制品的结构和电导率降低。 溶液的加热显着提高了溶解度。
    • 114. 发明授权
    • Stable, concentrated solutions of high molecular weight polyaniline and
articles therefrom
    • 稳定的高分子量聚苯胺浓缩溶液及其制品
    • US5981695A
    • 1999-11-09
    • US926338
    • 1997-09-05
    • Benjamin R. MattesHsing-Lin Wang
    • Benjamin R. MattesHsing-Lin Wang
    • C08J5/18C08G73/00C08G73/02D01F6/26D01F6/76H01B1/12C08J3/00
    • C08G73/0266D01F6/76H01B1/128
    • Stable, concentrated solutions of high molecular weight polyaniline. In order to process high quality fibers and other articles possessing good mechanical properties, it is known that solution concentrations of the chosen polymer should be in the range from 15-30% (w/w). Moreover, it is desirable to use the highest molecular weight consistent with the solubility properties of the polymer. However, such solutions are inherently unstable, forming gels before processing can be achieved. The present invention describes the addition gel inhibitors (GIs) to the polymer solution, thereby permitting high concentrations (between 15% and 30% (w/w)) of high molecular weight ((M.sub.w)>120,000, and (M.sub.n)>30,000) emeraldine base (EB) polyaniline to be dissolved. Secondary amines have been used for this purpose in concentrations which are small compared to those which might otherwise be used in a cosolvent role therefor. The resulting solutions are useful for generating excellent fibers, films, coatings and other objects, since the solutions are stable for significant time periods, and the GIs are present in too small concentrations to cause polymer deterioration. It is demonstrated that the GIs found to be useful do not act as cosolvents, and that gelation times of the solutions are directly proportional to the concentration of GI. In particular, there is a preferred concentration of GI, which if exceeded causes structural and electrical conductivity degradation of resulting articles. Heating of the solutions significantly improves solubility.
    • 稳定的高分子量聚苯胺浓缩溶液。 为了处理具有良好机械性能的高质量纤维和其它制品,已知所选聚合物的溶液浓度应在15-30%(w / w)的范围内。 此外,期望使用与聚合物的溶解性质一致的最高分子量。 然而,这种溶液固有地不稳定,可以在加工前形成凝胶。 本发明描述了对聚合物溶液的添加凝胶抑制剂(GI),从而允许高分子量((Mw)> 120,000和(Mn)> 30,000的高浓度(15%至30%(w / w) )翠绿碱(EB)聚苯胺溶解。 为了这个目的已经使用了仲胺,其浓度与可能用于其共溶剂作用的那些相比,其用量较小。 所得到的溶液可用于产生优异的纤维,膜,涂层和其它物体,因为溶液在相当长的时间内是稳定的,并且GI以太小的浓度存在以引起聚合物劣化。 证明发现有用的GI不能作为共溶剂,溶液的凝胶化时间与GI的浓度成正比。 特别地,存在优选的GI浓度,如果超过,则导致所得制品的结构和电导率降低。 溶液的加热显着提高了溶解度。
    • 115. 发明授权
    • Process for preparing polybenzazole filaments and fiber
    • 制备聚吲哚长丝和纤维的方法
    • US5756031A
    • 1998-05-26
    • US793038
    • 1997-01-30
    • Katsuya TaniIhachiro IbaTimothy L. FaleyMichael E. MillsIra M. Thumma
    • Katsuya TaniIhachiro IbaTimothy L. FaleyMichael E. MillsIra M. Thumma
    • D01D5/26D01F6/74D01D5/04D01D5/06D01F6/26
    • D01D5/26D01F6/74
    • A process for the preparation of polybenzazole filaments which comprises (a) extruding a solution of polybenzazole polymer in a mineral acid through a spinneret having at least 100 holes, which are arranged to form a annular pattern around the center of the spinneret, the center and at least two radial sections of the spinneret having no holes and an average width which is at least about 3 times the minimum pitch of the holes, thereby forming filaments of the polymer solution; (b) drawing the filaments of the polymer solution through a quench chamber while providing a substantially radial gas flow therein across the spinneret from at least two different directions; and (c) washing and drying the filaments of the polymer solution under conditions sufficient to form polybenzazole filaments.
    • PCT No.PCT / US95 / 10271 Sec。 371日期1997年1月30日 102(e)日期1997年1月30日PCT提交1995年8月10日PCT公布。 WO96 / 05341 PCT出版物 日期1996年2月22日一种制备聚吲唑长丝的方法,其包括(a)通过具有至少100个孔的喷丝头挤出无机酸中的聚苯并唑聚合物溶液,所述喷丝头被布置成围绕 喷丝头,中心和喷丝头的至少两个径向部分没有孔,平均宽度为孔的最小间距的至少约3倍,从而形成聚合物溶液的长丝; (b)将聚合物溶液的长丝拉过淬火室,同时从至少两个不同的方向穿过喷丝头提供基本上径向的气流; 和(c)在足以形成聚吲哚长丝的条件下洗涤和干燥聚合物溶液的长丝。
    • 116. 发明授权
    • Pervaporation method for separating liquids in mixture
    • 用于分离混合物中液体的渗透蒸发法
    • US4728431A
    • 1988-03-01
    • US771985
    • 1985-09-03
    • Shigehiro NaguraMinoru TakamizawaAkira Yamamoto
    • Shigehiro NaguraMinoru TakamizawaAkira Yamamoto
    • B01D61/36B01D71/44D01F6/00D01F6/26B01D13/00
    • B01D61/362B01D63/02B01D71/44
    • The efficiency of the pervaporation method for the separation or enrichment of liquids in mixture, e.g. water and ethyl alcohol, can be greatly improved when the partitioning membrane is made of a polymeric composition comprising a specific organosilyl-substituted polyenic polymer composed of the monomeric moieties represented by the general formula ##STR1## in which R.sup.1 is a hydrogen atom or an alkyl group having 1 to 4 carbon atoms and the groups denoted by R are each independently a hydrogen atom, a monovalent hydrocarbon group having 1 to 8 carbon atoms or a silicon-containing organic group such as those represented by the general formula --CH.sub.2 --SiMe.sub.2 R.sup.2, Me being a methyl group and R.sup.2 being a lower alkyl group having 1 to 4 carbon atoms. The performance and durability of the membrane can be further improved when the polymeric composition is a polymer blend of the above described polyenic polymer and a poly(trimethyl vinyl silane).
    • 用于分离或富集混合物中的液体的渗透蒸发方法的效率,例如 当分隔膜由包含由通式“IMAGE”表示的单体部分组成的特定有机甲硅烷基取代的多烯聚合物的聚合物组合物中可以大大改善,其中R 1是氢原子或烷基 具有1至4个碳原子的基团和由R表示的基团各自独立地为氢原子,具有1至8个碳原子的一价烃基或含硅的有机基团,例如由通式-CH 2 -SiMe 2 R 2表示的基团, Me为甲基,R2为碳原子数1〜4的低级烷基。 当聚合物组合物是上述多元聚合物与聚(三甲基乙烯基硅烷)的聚合物共混物时,可以进一步改善膜的性能和耐久性。
    • 117. 发明专利
    • 炭素繊維前駆体繊維およびその製造方法と、炭素繊維の製造方法
    • 碳纤维前身纤维及其制造方法和碳纤维的制造方法
    • JP2014240529A
    • 2014-12-25
    • JP2013122624
    • 2013-06-11
    • 国立大学法人 東京大学Univ Of Tokyo国立大学法人 東京大学
    • AOYANAGI SHU
    • D01F6/26C08F8/00C08F238/00D01F9/20
    • 【課題】耐炎化反応時の発熱量が少なく、耐炎化反応開始温度が低く、かつ炭素化収率が高い炭素繊維前駆体繊維、該炭素繊維前駆体繊維を連続的に安定して製造できる方法、および低コストで炭素繊維を製造できる方法の提供。【解決手段】本発明の炭素繊維前駆体繊維は、下記一般式(1)で表される構造単位(A)を1.0〜99.0モル%、および下記一般式(2)で表される構造単位(B)を1.0〜99.0モル%含むポリビニルアセチレン系重合体からなる。本発明の炭素繊維前駆体繊維の製造方法は、構造単位(A)を含むポリビニルアセチレン系重合体を用い、湿式紡糸法または乾湿式紡糸法で紡糸する。[化1]【選択図】なし
    • 要解决的问题:提供:在防火反应中具有低热值,低隔爆反应开始温度和高碳化收率的碳纤维前体纤维; 能够连续稳定地制造碳纤维前体纤维的方法; 以及能够以低成本制造碳纤维的方法。解决方案:碳纤维前体纤维由含有下述通式(1)所示的结构单元(A)的聚乙烯基乙炔系聚合物形成,其量为1.0 -99.0mol%和下述通式(2)表示的结构单元(B),为1.0-99.0mol%。 碳纤维前体纤维的制造方法包括使用含有结构单元(A)的聚乙烯基乙炔系聚合物,通过湿式纺丝法或干式湿式纺丝法纺出聚合物。