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    • 7. 发明授权
    • Reconfigurable tooling and method of manufacture
    • 可重构刀具和制造方法
    • US06310131B1
    • 2001-10-30
    • US09519185
    • 2000-03-06
    • Seng C. Tan
    • Seng C. Tan
    • C08K300
    • C08K3/346C08K2201/014
    • According to the present invention there are provided compositions and tooling useful in the fabrication of composite structures and prepared from compositions that are mixtures of elastomeric and ceramic materials that can be tailored to obtain desired mechanical properties or thermal expansion coefficients. The compositions and tooling prepared therefrom are inexpensive and easy to fabricate and reconfigure. Such compositions generally comprise blends of clays that harden at elevated temperatures, clays that soften at elevated temperatures and uncured silicone rubbers that exhibit high temperature stability. Compositions comprising from about 5% to about 60% by weight of uncured silicone rubber, from about 20% to about 80% by weight of a clay that hardens at elevated temperature and from about 5% to about 50% by weight of clays that soften at elevated temperatures are specifically preferred. Inert filers that do not adversely affect the mechanical or thermal expansion coefficients of the inventive compositions such as mica, calcium carbonate etc. may also be included.
    • 根据本发明,提供了可用于复合结构制造的组合物和模具,并且由组合物制备,所述组合物是弹性体和陶瓷材料的混合物,其可以被调整以获得所需的机械性能或热膨胀系数。 由此制备的组合物和模具便宜并且易于制造和重新配置。 这种组合物通常包括在高温下硬化的粘土的混合物,在高温下软化的粘土和显示高温稳定性的未固化的硅橡胶。 组合物包含约5重量%至约60重量%的未固化硅橡胶,约20重量%至约80重量%的在高温下硬化的粘土和约5重量%至约50重量%的软化粘土 在高温下是特别优选的。 还可以包括不会对本发明组合物如云母,碳酸钙等的机械或热膨胀系数产生不利影响的惰性填料。
    • 8. 发明授权
    • Microcellular polymer foams and method for their production
    • 微孔聚合物泡沫及其生产方法
    • US06232354B1
    • 2001-05-15
    • US09236179
    • 1999-01-25
    • Seng C. Tan
    • Seng C. Tan
    • C08J918
    • B29C44/3453B29C44/3446B29C44/348C08J9/18C08J2201/032
    • An environmentally friendly, commercially practicable process for the production of microcellular polymer foams from amorphous, semi-crystalline and crystalline polymers that comprises consolidating the polymer into a polymer shape, saturating the polymer shape with an inert gas at elevated temperature, above the Tg of the polymer, and under elevated pressure, releasing the pressure and cooling, i.e. quenching, the saturated polymer polymer shape under controlled temperature and pressure conditions to produce either a closed or open celled, low to medium density microcellular foam or a closed cell, high density microcellular foam.
    • 用于从无定形,半结晶和结晶聚合物生产微孔聚合物泡沫的环境友好的商业上可行的方法,其包括将聚合物固结成聚合物形状,在惰性气体的高温高于Tg的情况下使聚合物形状饱和 聚合物,并且在升高的压力下,在受控的温度和压力条件下释放压力和冷却,即骤冷饱和聚合物聚合物形状,以产生封闭或开孔,低至中密度微孔泡沫或闭孔,高密度微孔 泡沫。