Glass bubble filled polybenzimidazole
    22.
    发明授权
    Glass bubble filled polybenzimidazole 失效
    玻璃泡填充聚苯并咪唑

    公开(公告)号:US5308909A

    公开(公告)日:1994-05-03

    申请号:US19960

    申请日:1993-02-19

    IPC分类号: C08J3/21 C08K3/40

    CPC分类号: C08J3/212 C08J2379/04

    摘要: A moldable hollow glass filled PBI composition. The composition may be prepared by making a well-mixed slurry of glass microspheres in a solution of PBI in a suitable solvent, and then spinning the slurry through a jet or die under pressure and into a water bath where the particles coagulate. The solvent dissolves in the water, allowing solvent-free PBI-glass composite particles to be isolated.

    摘要翻译: 可模制中空玻璃填充PBI组合物。 组合物可以通过将玻璃微球的良好混合的浆料制成PBI在合适溶剂中的溶液,然后通过喷射或模头在压力下将浆料旋转到颗粒凝结的水浴中来制备。 溶剂溶解在水中,使无溶剂的PBI-玻璃复合颗粒被分离。

    Thermally stable oligomeric ultraviolet stabilizers
    27.
    发明授权
    Thermally stable oligomeric ultraviolet stabilizers 失效
    耐热稳定的低聚紫外线稳定剂

    公开(公告)号:US5264539A

    公开(公告)日:1993-11-23

    申请号:US866160

    申请日:1992-04-09

    申请人: James P. Shepherd

    发明人: James P. Shepherd

    摘要: The invention discloses oligomeric compositions that have high thermal and uv stability as well as reactive end groups so that they may be reactively incorporated into polymer backbones when the polymers are prepared. The oligomeric moieties are capable of retaining their chemical structure intact at temperatures where the polymers are processed into articles, so that the finished articles contain the oligomeric moieties and possess good stability towards ultraviolet light. An example of such oligomer is illustrated by the following poly(aminoterephthalic acid). ##STR1##

    摘要翻译: 本发明公开了具有高热稳定性和uv稳定性以及反应性端基的低聚组合物,使得当制备聚合物时,它们可以被反应地并入聚合物主链。 寡聚部分能够在将聚合物加工成制品的温度下保持其完整的化学结构,使得最终制品含有低聚部分并对紫外线具有良好的稳定性。 这种低聚物的实例由下列聚(对苯二甲酸)表示。

    Fine polybenzimidazole-containing particles
    28.
    发明授权
    Fine polybenzimidazole-containing particles 失效
    含聚苯并咪唑的微粒

    公开(公告)号:US5223550A

    公开(公告)日:1993-06-29

    申请号:US888935

    申请日:1992-05-26

    摘要: Fine, porous polybenzimidazole-containing particles prepared by spray-atomizing/quenching a polybenzimidazole-containing polymer solution into porous polybenzimidazole-containing particles, and fluidized bed, oppose jet milling the particles into fine, porous polybenzimidazole-containing particles. The milled particles exhibit a narrow particle size distribution centered at about a 5 .mu.m mean particle size, a surface area of about 35 m.sup.2 /g, and an open porosity of about 1.2 cm.sup.2 /gm which is at pore radius of less than about 100 nm.

    摘要翻译: 通过将含聚苯并咪唑的聚合物溶液喷雾雾化/猝灭制备成多孔聚苯并咪唑的颗粒和流化床制备的细微多孔的含聚苯并咪唑的颗粒相对于将颗粒喷射研磨成细微多孔的含聚苯并咪唑的颗粒。 研磨的颗粒表现出以约5μm平均颗粒大小为中心的窄粒度分布,约35m 2 / g的表面积和约1.2cm 2 / gm的孔隙度,其孔径小于约100 nm。

    Thermoset LCP blends
    30.
    发明授权
    Thermoset LCP blends 失效
    热固性LCP混合物

    公开(公告)号:US5216073A

    公开(公告)日:1993-06-01

    申请号:US907005

    申请日:1992-07-01

    摘要: A moldable thermoset composition comprising about 5-60% liquid crystal polymer and about 95-40% of an epoxy-functional rubber by weight, a process for making and a process for using same. The composition is made by melt mixing the LCP and the epoxy-rubber to form a blend. This blend is then cooled and may be molded, extruded, or otherwise formed into a desired shape. The composition is then heat-treated to make it set.

    摘要翻译: 一种可模制的热固性组合物,其包含约5-60%的液晶聚合物和约95-40%的环氧官能橡胶,其制备方法及其使用方法。 通过熔融混合LCP和环氧橡胶制成组合物以形成共混物。 然后将该共混物冷却,并且可以模制,挤出或以其它方式形成所需的形状。 然后将组合物进行热处理以使其固化。