申请人:Mitsui Chemicals, Inc.
公开号:EP1237015A1
公开(公告)日:2002-09-04
For providing a polyimide optical component exhibiting good physical properties inherent to a polyimide, i.e., heat resistance, mechanical properties, electric properties, thermal oxidation stability and chemical resistance, as well as good transparency and a high refractive index, this invention, this invention essentially uses a particular diamine and a particular tetracarboxylic dianhydride to give an optical component made of a polyimide having a motif represented by general formula (1):
wherein in general formula (1), A represents general formula (2), (3) or (4); X represents a direct bond, -O-, -SO2- or -C(CF3)2-;
in general formula (2), R1 and R2 represent H, Cl, Br, CH3 or CF3;
in general formula (3), A1 represents -O-, -S-, -CO-, -CH2-, -SO2-, -C(CH3)2- or -C(CF3)2-;
in general formula (4), A2 represents a direct bond, -O-, -S-, -CO-, -SO2-, -C(CH3)2- or -C(CF3)2-.
为了提供一种聚酰亚胺光学元件,使其具有聚酰亚胺固有的良好物理性能,即耐热性、机械性能、电性能、热氧化稳定性和耐化学性,以及良好的透明度和高折射率,本发明主要使用一种特定的二胺和一种特定的四羧酸二酐,以得到一种由具有通式(1)表示的图案的聚酰亚胺制成的光学元件:
其中,在通式(1)中,A 代表通式(2)、(3)或(4);X 代表直接键、-O-、-SO2- 或-C(CF3)2-;
通式(2)中,R1 和 R2 代表 H、Cl、Br、CH3 或 CF3;
通式(3)中,A1 代表-O-、-S-、-CO-、-CH2-、-SO2-、-C(CH3)2- 或-C(CF3)2-;
通式(4)中,A2 代表直接键、-O-、-S-、-CO-、-SO2-、-C(CH3)2- 或 -C(CF3)2-。