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    • 5. 发明申请
    • HIGH CARBON RESINS AND FOAMS
    • 高碳树脂和FOAMS
    • WO1991009066A1
    • 1991-06-27
    • PCT/US1990007518
    • 1990-12-14
    • HYPERION CATALYSIS INTERNATIONAL
    • HYPERION CATALYSIS INTERNATIONALTRUESDALE, Larry, K.FLEMING, Gerald
    • C08F38/00
    • C08J9/10C08J2349/00
    • High carbon resins and methods for preparing such resins, including foaming compositions that include (a) a foaming agent, (b) an aromatic polyacetylenically unsaturated prepolymer, and (c) a viscosity modifier modifying the flow properties of the prepolymer, viscosity modifier having one or more acetylenic groups available for reacting with the prepolymer. The foaming agent, prepolymer, and viscosity modifier are chosen such that at the decomposition temperature of the foaming agent, the viscosity of the composition is sufficient to permit molding and foaming. The acetylenic groups of the viscosity modifier react with the residual acetylenic groups of the prepolymer during molding so that the viscosity modifier becomes part of the final foam, does not have to be removed following, and will not leach out of the foam or impair its chemical or physical properties. Following molding, the foam may be carbonized to produce a carbon foam useful for electrical applications.
    • 高碳树脂和制备这种树脂的方法,包括发泡组合物,其包括(a)发泡剂,(b)芳族聚乙烯基不饱和预聚物,和(c)改性预聚物流动性的粘度调节剂,具有一个 或更多的炔基可用于与预聚物反应。 选择发泡剂,预聚物和粘度​​调节剂使得在发泡剂的分解温度下,组合物的粘度足以使其成型和发泡。 在模塑过程中,粘度调节剂的炔基与预聚物的残留炔基反应,使得粘度调节剂成为最终泡沫的一部分,不必随后除去,也不会从泡沫中浸出或损害其化学物质 或物理性质。 在模制之后,泡沫可以被碳化以产生可用于电气应用的碳泡沫。