专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明公开

EP2886579A1 METHOD FOR PREPARING BIODEGRADABLE ALIPHATIC-AROMATIC POLYESTER COPOLYMER RESIN WITH IMPROVED HYDROLYSIS RESISTANCE 审中-公开
标题翻译： METHOD FOR PRODUCING具有改善的抗水解性的生物降解性脂肪族 - 芳香族聚酯共聚物树脂
公开(公告)号：EP2886579A1
公开(公告)日：2015-06-24
申请号：EP13829195.0
申请日：2013-05-10
申请人： Samsung Fine Chemicals Co., Ltd.
发明人： CHUN, Jong Pil , KIM, Hee Soo , KIM, Ye Jin , CHOI, Soo Youn , YUN, Ki Chull , KIM, Min Kyoung , YEOM, Nam Yeong , KANG, Sang Mi
IPC分类号： C08G63/78 , C08G63/12 , C08L67/02
CPC分类号： C08G63/46 , C08G63/181 , C08G63/20 , C08G63/78
摘要： There is provided a method of preparation for a biodegradable co-polyester resin with improved hydrolysis resistance, the method including performing a primary esterification reaction between an aliphatic dihydroxy compound and an aliphatic dicarboxylic acid compound, and performing a secondary transesterification reaction with addition of an aromatic dicarboxylate after the primary esterification reaction, in which a short chain alcohol-type branching agent is added to the primary esterification reaction or to the secondary transesterification reaction. In the method of the present invention, the slow esterification reaction caused by acid is performed first and the aromatic dicarboxylate compound without acidity is added thereto, thereby efficiently controlling a non-reactant or a partial-reactant affecting an acid value of a product during the reaction, so that an acid value can be controlled and hydrolysis resistance can be improved without using an excessive amount of expensive BDO, an reaction of an excessive amount of a chain extender, or using an expensive anti-hydrolysis agent. Further, by minimizing an amount of the branching agent used herein, tear strength can be improved.
摘要翻译：本发明提供制备的方法中具有改善的抗水解性的生物可降解共聚酯树脂，该方法包括在脂肪族二羟基化合物和脂肪族二羧酸化合物进行之间的初级酯化反应，并用另外的芳族的执行辅助酯交换反应初级酯化反应，其中短链醇型支化剂添加到主酯化反应或酯交换反应到二次后二羧酸酯。在本发明的方法中，由酸引发的慢酯化反应中进行第一和无酸性的芳族二羧酸化合物加入其中，从而有效地控制非反应物或部分反应物影响上时的产品的酸值反应，所以没有对酸值可被控制，耐水解性可以在不使用昂贵的BDO过量，在扩链剂的过量的反应，或使用昂贵的抗水解剂来改善。此外，通过所述支化剂的量最小化用于，撕裂强度可以提高。

IPRDB

热门服务

关于我们

友情链接

联系方式