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专利名称：Preparation of poly(ester carbonate) by
interfacial method
发明人：Segal, Leon,De Bona, Bruce Todd申请号：EP80101033.1申请日：19800303公开号：EP0017740B1公开日：19840425
摘要：Poly(ester carbonate) polymers are prepared by reaction of bifunctionalphenolates in an aqueous phase with phosgene and with the acyl halide of a bifunctionalcarboxylic acid halide such as terephthaloyl chloride in an organic solvent such asdichloromethane. At least a portion of the phosgene is reacted with the phenolatebefore or during reaction of the acid chloride with the phenolate to avoid the formationof polyester blocks which have limited solubility in the organic solvent. After reaction iscomplete, or at any stage wherein oligomers are formed, the aqueous phase can becleanly removed and easily separated from the organic phase, and the organic phasereadily washed free of by-products. The final polymer product is recovered from thewashed organic phase and is colorless, substantially amorphous and melt processable,and has a high glass transition temperature.
申请人：ALLIED CORPORATION
地址：Columbia Road and Park Avenue P.O. Box 2245R (Law Dept.) Morristown NewJersey 07960 US
国籍：US
代理机构：Baillie, Iain Cameron
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