Highly heat-resistant polyaryl ether ketones
    2.
    发明授权
    Highly heat-resistant polyaryl ether ketones 失效
    高耐热聚芳醚酮

    公开(公告)号:US4867912A

    公开(公告)日:1989-09-19

    申请号:US142715

    申请日:1988-01-11

    IPC分类号: C08G65/40 C08L71/00 C08L81/06

    摘要: Highly heat-resistant polyaryl ether ketones are composed of(A) from 50 to 100 mol % of repeat units of the general formula I ##STR1## or a ring-substituted C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 -alkoxy, aryl, chlorine or fluorine derivative thereof and(B) from 0 to 50 mol % of repeat units, different from I, of the general formulae II and/or III ##STR2## or a ring-substituted C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 -alkoxy, aryl, chlorine or fluorine derivative thereof, where Q, Q', Y, Y', T, T', Z and Z' are each --O--, --CO-- or a chemical bond, one or more of these substituents is a --CO-- group, and s, t and u are each 0 or 1.

    摘要翻译: 高耐热聚芳醚酮由(A)50-100摩尔%的通式I重复单元或环取代的C 1 -C 8烷基,C 1 -C 8 - 烷氧基 ,芳基,氯或氟衍生物和(B)0至50摩尔%的通式II和/或III与I不同的重复单元,或环 - 取代的C 1 -C 8 - 烷基,C 1 -C 8 - 烷氧基,芳基,氯或氟衍生物,其中Q,Q',Y,Y',T,T',Z和Z'各自为-O - , - 或化学键,这些取代基中的一个或多个是-CO-基团,s,t和u各自为0或1。

    Apparatus for determining the stress-strain properties of viscoelastic
materials in the molten state
    7.
    发明授权
    Apparatus for determining the stress-strain properties of viscoelastic materials in the molten state 失效
    用于确定熔融状态下粘弹性材料的应力 - 应变特性的装置

    公开(公告)号:US4266424A

    公开(公告)日:1981-05-12

    申请号:US15617

    申请日:1979-02-27

    申请人: Helmut Muenstedt

    发明人: Helmut Muenstedt

    IPC分类号: G01N3/18 G01N11/00 G01N3/08

    CPC分类号: G01N11/00 G01N3/18

    摘要: Apparatus for determining the stress-strain characteristics of materials in the viscoelastic state, especially polymer melts, in which a bar-shaped test specimen arranged vertically in a thermostable bath is stretched by means of a tape attached to a motor-driven reel and the tensile forces are continuously measured by a load cell arranged below the specimen and within the bath.

    摘要翻译: 用于确定粘弹性状态的材料(特别是聚合物熔体)的应力 - 应变特性的装置,其中垂直于热稳定浴中排列的棒状试样通过附接到电动卷轴上的带被拉伸, 通过布置在样品下方和浴内的称重传感器连续测量力。