利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

71 条记录 (耗时 0.024 秒)

    Polycaprolactam molecular composites
    1.
    发明授权
    Polycaprolactam molecular composites 失效
    聚己内酰胺分子复合材料

    公开(公告)号：US5491200A

    公开(公告)日：1996-02-13

    申请号：US171523

    申请日：1993-12-22

    申请人： Frank W. Harris ,  Hong Ding

    发明人： Frank W. Harris ,  Hong Ding

    IPC分类号： C08G73/14 ,  C08L77/00 ,  C08L79/08 ,  C08G69/00 ,  C08G69/48

    CPC分类号： C08L77/00 ,  C08G73/14 ,  C08L79/08

    摘要： Polyimides serve as reinforcing rigid-backbone segments in nylon 6 copolymers. In a first embodiment, the copolymers are prepared from polyimides containing acylated caprolactam moieties pendant therefrom which provide sites for polycaprolactam grafts. In a second embodiment, polyimide oligomers end-capped with acyl-activated caprolactam rings permit the formation of block caprolactam copolymers that include polyimide reinforcing segments. The polyimide/nylon 6 copolymers have properties superior to those of nylon 6 and can also serve as compatibilizing agents.

    摘要翻译： 聚酰亚胺在尼龙6共聚物中用作增强刚性骨架链段。 在第一个实施方案中，共聚物由聚酰亚胺制备，所述聚酰亚胺含有从其悬挂的酰化己内酰胺部分，其提供聚己内酰胺移植物的位点。 在第二个实施方案中，用酰基活化的己内酰胺环封端的聚酰亚胺低聚物允许形成包括聚酰亚胺加强段的嵌段己内酰胺共聚物。 聚酰亚胺/尼龙6共聚物具有优于尼龙6的性能，也可以用作相容剂。

    Output pulse compensation for therapeutic-type electronic devices
    5.
    发明授权
    Output pulse compensation for therapeutic-type electronic devices 失效
    用于治疗型电子设备的输出脉冲补偿

    公开(公告)号：US5184617A

    公开(公告)日：1993-02-09

    申请号：US533293

    申请日：1990-06-05

    申请人： Frank W. Harris ,  Alan R. Owens

    发明人： Frank W. Harris ,  Alan R. Owens

    IPC分类号： A61N1/08

    CPC分类号： A61N1/08

    摘要： Pulse compensation is disclosed for electronic devices capable of producing a pulse output signal suitable for therapeutic purposes with pulse compensation being automatically provided upon sensing of a change in the conditions being monitored. The electronic device, which preferably includes a micro-computer, has externally accessible pulse width and intensity controls for determining the width and amplitude of pulses then being delivered. Upon each sensing of a change in a monitored condition capable of causing user discomfort or possible injury, the intensity of the pulses then being delivered is quickly reduced and then gradually increased toward the full intensity requested by the intensity control. Pulse compensation is also provided when the pulse width is varied by the pulse width control to thereby automatically cause a corresponding change in the range of intensities of the pulses then delivered, based upon a nerve fiber strength-duration curve of the pulses, to thereby maintain the stimulation capability of the pulses substantially constant at a percentage of intensity as determined by the intensity control.

    Self polymerizable phenylquinoxalines, their preparation and use in polyphenylquinoxaline homopolymers and copolymers
    6.
    发明授权
    Self polymerizable phenylquinoxalines, their preparation and use in polyphenylquinoxaline homopolymers and copolymers 失效
    自聚合苯基喹喔啉，它们的制备和在聚苯基喹喔啉均聚物和共聚物中的应用

    公开(公告)号：US5115078A

    公开(公告)日：1992-05-19

    申请号：US635487

    申请日：1991-02-04

    申请人： Frank W. Harris ,  Joseph E. Korleski

    发明人： Frank W. Harris ,  Joseph E. Korleski

    IPC分类号： C08G73/06

    CPC分类号： C08G73/0694

    摘要： A polyphenylquinoxaline which consists of 1 to 100 mole percent of structural elements of the formula (IV) ##STR1## and of 0-99 mole percent of the following repeat unit of formula (V) ##STR2## where R is selected from the group consisting of H, an alkyl group, a carbocyclic aromatic group, a heterocyclic aromatic group, or an alkoxy group, Ar.sub.1 is a carbocyclic aromatic or heterocyclic aromatic group, and B is selected from the representative group consisting of:Ar.sub.2 --Z--Ar.sub.3 (i)where Ar.sub.2 and Ar.sub.3 are the same or different carbocyclic aromatic or heterocyclic aromatic group and Z is selected from the representative group consisting of CO, SO or SO.sub.2 ;Z'--Ar.sub.4 --Z' (ii)where Z' is an activated carbocyclic aromatic or heterocyclic aromatic group and Ar.sub.4 is an aliphatic group, a carbocyclic aromatic or heterocyclic aromatic group. A process for manufacture a self polymerizable phenylquinoxaline subject to polymerization by aromatic nucleophilic substitution. The use of these polyphenylquinoxalines and there copolymers as thermally stable thermal plastics for use in aerospace, high temperature adhesive, microelectronic and membrane (gas and molecular separation membrane) application.

    摘要翻译： 由1至100摩尔％的式（IV）的结构元素（IV）和0-99摩尔％的下式（V）的重复单元组成的聚苯基喹喔啉（V）其中R 选自H，烷基，碳环芳基，杂环芳基或烷氧基，Ar 1为碳环芳族或杂环芳族基团，B选自由以下组成的代表组：Ar 2 -Z-Ar 3（i）其中Ar 2和Ar 3是相同或不同的碳环芳族或杂环芳族基团，Z选自由CO，SO或SO 2组成的代表性基团; Z'-Ar 4 -Z'（ii）其中Z'为活性碳环芳族或杂环芳族基团，Ar 4为脂族基团，碳环芳族或杂环芳族基团。 通过芳族亲核取代制备聚合的自聚合苯基喹喔啉的方法。 使用这些聚苯基喹喔啉和共聚物作为热稳定的热塑性塑料用于航空航天，高温粘合剂，微电子和膜（气体和分子分离膜）应用。