申请人:Nippon Paint Co. Ltd.
公开号:EP0680982A1
公开(公告)日:1995-11-08
The present invention provides novel polyacylurethane, and a process for producing the same. More specifically, the present invention provides polyacylurethane having a molecular weight of 500 to 50,000, wherein a main chain of said polyacylurethane is substantially composed of a repeating unit of the formula:
wherein R₁ represents an alkylene group or an alkenylene group having a molecular weight of 28 to 30,000, which may contain an alicyclic group, an aromatic group and/or an oxygen atom; and R₂ represents an alkylene group, an arylene group or an alkenylene group having 1 to 8 carbon atoms.
本发明提供了新型聚氨酯及其生产工艺。更具体地说,本发明提供了分子量为 500 至 50,000 的聚氨酯,其中所述聚氨酯的主链基本上由式中的重复单元组成:
其中 R₁ 代表分子量为 28 至 30000 的亚烷基或烯基,可包含脂环基、芳香基和/或氧原子;R₂ 代表具有 1 至 8 个碳原子的亚烷基、芳烯基或烯基。