发明名称 Method for incorporating nitrogen containing methine light absorbers in PET and compositions thereof
摘要 The present invention is a method for efficiently incorporating a nitrogen containing methine light absorber into a polyester resin. The method includes forming a reaction mixture comprising combining a diol component, a diacid component selected from the group consisting of dicarboxylic acids, dicarboxylic acid derivatives, and mixtures thereof, an antimony containing compound, a phosphorus containing compound, a metal containing compound, and a nitrogen containing methine light absorber. The reaction mixture is polymerized in a polycondensation reaction system. In another embodiment the light absorber is added while the reaction products of one reactor are being transferred to the next reactor in the polycondensation reaction system. The present invention is also directed articles made from the polyester resin.
申请公布号 US7528219(B2) 申请公布日期 2009.05.05
申请号 US20070859208 申请日期 2007.09.21
申请人 EASTMAN CHEMICAL COMPANY 发明人 WEAVER MAX ALLEN;PEARSON JASON CLAY;BLAKELY DALE MILTON;COLHOUN FREDERICK LESLIE
分类号 C08G64/00;C08G63/02;C08G63/685;C08G63/86;C08K5/16;C08K5/18;C08K5/34 主分类号 C08G64/00
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