申请人:Murayama Toshikazu
公开号:US20050038224A1
公开(公告)日:2005-02-17
The present invention provides a polyester and a polyurethane each having, in the molecule, a structural unit represented by formula (I):
(wherein, R
1
, R
2
, R
3
, R
4
, R
5
and R
6
, which are the same or different, each represent a hydrogen atom or lower alkyl, provided that at least one of R
1
, R
2
, R
3
, R
4
, R
5
and R
6
is lower alkyl), and being excellent in hydrolysis resistance.
本发明提供了一种聚酯和一种聚氨酯,其分子中具有由式(I)表示的结构单元:(其中,R1、R2、R3、R4、R5和R6,它们相同或不同,每个代表氢原子或较低的烷基,但至少其中一个是较低的烷基),并且具有优异的耐水解性。