Poly(aryl ether sulfone)-poly(aryl ether ketone) block copolymers
    1.
    发明授权
    Poly(aryl ether sulfone)-poly(aryl ether ketone) block copolymers 失效
    聚(芳基醚砜) - 聚(芳基醚酮)嵌段共聚物

    公开(公告)号:US5084530A

    公开(公告)日:1992-01-28

    申请号:US562640

    申请日:1990-08-03

    IPC分类号: C08G61/12 C08G75/23

    摘要: Novel poly(aryl ether sulfone)-poly(aryl ether ketone) block copolymers are described. They are prepared by the nucleophilic polycondensation of a hydroxy- or halo-terminated poly(aryl ether ketone) oligomer with the poly(aryl ether sulfone) forming reagents; alternatively, a preformed poly(aryl ether sulfone) block may be used.The novel copolymers are tough materials with excellent heat, solvent, and stress-crack resistance. They display high HDT's (heat distortion temperatures) and are useful in molding, extrusion and composites applications.

    摘要翻译: 描述了新的聚(芳基醚砜) - 聚(芳醚酮)嵌段共聚物。 它们通过羟基或卤素封端的聚(芳基醚酮)低聚物与聚(芳基醚砜)形成试剂的亲核缩聚制备; 或者,可以使用预制的聚(芳基醚砜)嵌段。 新型共聚物是具有优异的耐热,耐溶剂和耐应力开裂性能的韧性材料。 它们显示出高HDT(热变形温度),并且可用于成型,挤出和复合材料应用。

    Poly(aryl ether sulfone)-poly(aryl ether ketone) block copolymers block
copolymers
    2.
    发明授权
    Poly(aryl ether sulfone)-poly(aryl ether ketone) block copolymers block copolymers 失效
    聚(芳基醚砜) - 聚(芳基醚酮)嵌段共聚物嵌段共聚物

    公开(公告)号:US4968758A

    公开(公告)日:1990-11-06

    申请号:US234760

    申请日:1988-08-22

    IPC分类号: C08G61/12 C08G75/23

    摘要: Novel poly(aryl ether sulfone)-poly(aryl ether ketone) block copolymers are described. They are prepared by the nucleophilic polycondensation of a hydroxy- or halo-terminated poly(aryl ether ketone) oligomer with the poly(aryl ether sulfone) forming reagents; alternatively, a preformed poly(aryl ether sulfone) block may be used.The novel copolymers are tough materials with excellent heat, solvent, and stress-crack resistanced. They display high HDT's (heat distortion temperatures) and are useful in molding, extrusion and composites applications.

    摘要翻译: 描述了新的聚(芳基醚砜) - 聚(芳醚酮)嵌段共聚物。 它们通过羟基或卤素封端的聚(芳基醚酮)低聚物与聚(芳基醚砜)形成试剂的亲核缩聚制备; 或者,可以使用预制的聚(芳基醚砜)嵌段。 新型共聚物是具有优异的耐热,耐溶剂和耐应力裂纹性能的坚韧材料。 它们显示出高HDT(热变形温度),并且可用于成型,挤出和复合材料应用。

    Stabilized polyolefin compositions
    4.
    发明授权
    Stabilized polyolefin compositions 失效
    稳定的聚烯烃组合物

    公开(公告)号:US07291669B2

    公开(公告)日:2007-11-06

    申请号:US11079556

    申请日:2005-03-14

    IPC分类号: C08L23/00 C08K5/16

    CPC分类号: C08K5/13

    摘要: Polyolefin compositions comprising a particular hindered phenolic antioxidant selected from the group consisting of tris(3,5-di-tert-butyl-4-hydroxybenzyl)isocyanurate, 1,3,5-tris-(3,5-di -tert-butyl-4-hydroxybenzyl)-2,4,6-trimethylbenzene and the calcium salt of the monoethyl ester of 3,5-di-tert-butyl-4-hydroxybenzylphosphonic acid, an oligomeric sterically hindered amine light stabilizer, a hydroxylamine stabilizer or trialkylamine N-oxide stabilizer, and, optionally, an organic phosphorus stabilizer, are effectively stabilized against degradation upon melt processing, long term heat aging, and exposure to combustion products of natural gas.

    摘要翻译: 包含选自三(3,5-二叔丁基-4-羟基苄基)异氰脲酸酯,1,3,5-三 - (3,5-二叔丁基 -4-羟基苄基)-2,4,6-三甲基苯和3,5-二叔丁基-4-羟基苄基膦酸的单乙酯的钙盐,低聚空间位阻胺光稳定剂,羟胺稳定剂或三烷基胺 N-氧化物稳定剂和任选的有机磷稳定剂在熔融加工,长期热老化和暴露于天然气燃烧产物时有效稳定。