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METHOD OF TREATING A POLY(VINYL CHLORIDE) COMPOSITION WITH DENSE PHASE CARBON DIOXIDE
METHOD OF TREATING A POLY(VINYL CHLORIDE) COMPOSITION WITH DENSE PHASE CARBON DIOXIDE
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机译:稠密相二氧化碳处理聚氯乙烯的方法
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摘要
The present invention concerns a method of treating a poly(vinyl chloride) composition comprising poly(vinyl chloride) particles and obtained by a process selected from suspension polymerization in an aqueous medium, microsuspension polymerization in an aqueous medium, emulsion polymerization in an aqueous medium and bulk polymerization, which method comprises contacting the poly(vinyl chloride) composition with supercritical carbon dioxide (scCO2), near critical CO2 or liquid CO2.
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