申请人:The Procter and Gamble Company
公开号:EP1881021A2
公开(公告)日:2008-01-23
Phase change solvents for thermoplastic polymers to provide blended compositions. Above the phase change temperature of the solvent, the phase change solvent solubilizes or intimately mixes with the thermoplastic polymer. Below the phase change temperature of the solvent, the phase change solvent solidifies or crystallizes within the thermoplastic matrix. The phase change behavior of these materials produce blended compositions that exhibit lowered shear viscosity and lowered processing temperature without substantially compromising mechanical properties of the thermoplastic polymer. The present invention also relates to a method of improving the processability of a thermoplastic polymer using the phase change solvent.
用于热塑性聚合物的相变溶剂可提供混合成分。当溶剂的相变温度高于相变温度时,相变溶剂会溶解热塑性聚合物或与热塑性聚合物紧密混合。低于溶剂的相变温度时,相变溶剂会在热塑性基质中凝固或结晶。这些材料的相变行为产生的混合成分可降低剪切粘度和加工温度,而不会严重影响热塑性聚合物的机械性能。本发明还涉及一种利用相变溶剂改善热塑性聚合物加工性能的方法。