申请人:MITSUI PETROCHEMICAL INDUSTRIES, LTD.
公开号:EP0349648A1
公开(公告)日:1990-01-10
The polyhydroxypolyether of the present invention is a polyhydroxypolyether having either hydrocarbon group consisting essentially of a p-phenylene group or a divalent aromatic hydrocarbon group consisting essentially of a group other than a p-phenylene gruop, which is characterized in that it has an intrinsic viscosity of 0.1 dl/g to less than 0.3 dl/g and contains a nonionic halogen in an amount of not more than 0.2 % by weight, or end chapping characterized in that its molecule is terminated with a specific aromatic group. The present invention further provides processes for preparing the polyhydroxypolyether and uses thereof utilizing the high gas barrier properties and the high transparency.
本发明的聚羟基聚醚是一种聚羟基聚醚,它具有基本上由对苯基组成的烃基或基本上由对苯基以外的基团组成的二价芳香烃基,其特征在于它的固有粘度为0.1分升/克至小于0.3分升/克,并含有非离子卤素,其含量不超过0.2%(重量百分比),或端皴,其特征在于其分子以特定的芳香基团终止。本发明进一步提供了利用高气体阻隔性和高透明度制备聚羟基聚醚的工艺及其用途。