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    • 2. 发明授权
    • Method of using low profile additives for crosslinkable resins
    • 低交联添加剂用于交联树脂的方法
    • US06544453B2
    • 2003-04-08
    • US09734434
    • 2000-12-11
    • David D. TaftSteven P. Bitler
    • David D. TaftSteven P. Bitler
    • B29B1106
    • C08L101/00C08L2666/02
    • Shrinkage of cured resins is reduced by mixing the crosslinkable resin with a low profile additive (LPA). The LPA is in the form of particles which comprise an SCC polymer (or a similar crystalline polymer which melts over a narrow temperature range). The system is cured at a temperature above the melting point of the crystalline polymer (Tp), and the system and the LPA are such that at least part of the LPA remains as a separate phase in the curable resin at temperatures below Tp. It is believed that at least part of the crystalline polymer remains as a separate phase in the resin as it cures. Preferably at least part of the crystalline polymer forms a separate phase in the cured polymer after it has cooled.
    • 通过将可交联树脂与低轮廓添加剂(LPA)混合来降低固化树脂的收缩。 LPA是包含SCC聚合物(或在窄温度范围内熔化的类似结晶聚合物)的颗粒形式。 该系统在高于结晶聚合物(Tp)的熔点的温度下固化,并且系统和LPA使得至少部分LPA在低于Tp的温度下保持为可固化树脂中的分离相。 据信至少部分结晶聚合物在树脂固化时保持为树脂的独立相。 在固化的聚合物冷却后,优选至少部分结晶聚合物形成分离的相。