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    • 3. 发明授权
    • Bimodal cured intermixed polymeric networks which are stable at high
temperature
    • 在高温下稳定的双峰固化混合聚合物网络
    • US5331018A
    • 1994-07-19
    • US935863
    • 1992-08-26
    • Vincent D. McGinnissJames L. WhiteHiroyuki Mikuni
    • Vincent D. McGinnissJames L. WhiteHiroyuki Mikuni
    • C08G85/00C08F2/50C08F283/00C08G77/442C08F18/14C08F18/18
    • C08G77/442C08F283/00
    • The present invention is directed to a non-emissive, bimodal cured polymeric network which has an onset degradation temperature that is about 100.degree. C. above the onset degradation temperature of a base polymer. The novel cured polymeric network comprises the cured reaction product of the following ingredients: (a) combination of one or more liquid carrier monomers or prepolymers which combination is reactive to form a base polymer by exposure to ultraviolet (UV) radiation in the presence of a UV photosensitizer at a temperature, T.sub.uv ; and (b) between about 10 and 100 wt-% based on ingredient (a) of a combination of one or more monomers or prepolymers which combination is reactive to form a cured high temperature stable polymer by heating at a temperature, T.sub..DELTA.. Ingredient (b) is soluble or dispersible in ingredient (a) at a temperature, T.sub.s, wherein T.sub.s is equal to or lower than T.sub.uv, and T.sub.uv is at least about 50.degree. C. lower than T.sub..DELTA..
    • 本发明涉及一种非发射双峰固化的聚合物网络,其具有高于基础聚合物的起始降解温度约100℃的起始降解温度。 新型固化的聚合物网络包括以下成分的固化反应产物:(a)一种或多种液体载体单体或预聚物的组合,其组合是通过暴露于紫外线(UV)辐射在有 UV光敏剂在温度下,Tuv; 和(b)基于组分(a)的一种或多种单体或预聚物的组合的约10至100重量%,所述组合通过在温度T DELTA下加热而形成固化的高温稳定聚合物。 成分(b)在成分(a)中可溶或可分散于温度Ts,其中Ts等于或低于Tuv,Tuv比T DELTA低至少约50℃。