申请人:ZEON CORPORATION
公开号:EP1731543A1
公开(公告)日:2006-12-13
The invention provides a novel block copolymer which can significantly improve the adhesion between a molded product composed of a nonpolar polymer such as polypropylene or polyethylene and a coating material or a molded product composed of a polar polymer, as well as a method for producing the same. Disclosed is a block copolymer comprising at least one poly (aromatic vinyl) block having a weight-average molecular weight of 1,000 to 500, 000 and at least one cyclizedpoly (conjugated diene) block, as well as an oxygen scavenger and a modifier for polymer molding material, which comprise the block copolymer as an active ingredient.
本发明提供了一种新型嵌段共聚物,它可以显著改善由聚丙烯或聚乙烯等非极性聚合物组成的模制产品与由极性聚合物组成的涂层材料或模制产品之间的粘附性,同时还提供了生产这种嵌段共聚物的方法。本发明公开了一种嵌段共聚物,该嵌段共聚物由至少一个重量平均分子量为 1,000 至 500,000 的聚芳香乙烯嵌段和至少一个环化聚(共轭二烯)嵌段组成,还公开了一种氧清除剂和一种聚合物模塑材料改性剂,其中包含该嵌段共聚物作为活性成分。