申请人:Asahi Kasei Kabushiki Kaisha
公开号:EP1219662A1
公开(公告)日:2002-07-03
Disclosed is a polyamide ester which comprises a plurality of specific amide ester recurring units including, in a specific ratio, recurring units containing a tetravalent benzene group and recurring units containing a tetravalent diphenyl ether group, and which is adapted to be converted to a polyimide in a coating form by heat-curing, wherein the polyimide coating exhibits a residual stress of 33 MPa or less as measured with respect to a 10 µm-thick polyimide coating formed on a silicon substrate. Also disclosed is a polyamide ester composition comprising a plurality of different polyamide esters, wherein the plurality of different polyamide esters collectively contain, in a specific ratio, the recurring units containing a tetravalent benzene group and the recurring units containing a tetravalent diphenyl ether group.
公开了一种聚酰胺酯,该聚酰胺酯包含多个特定的酰胺酯递归单元,其中按特定比例包含含有四价苯基团的递归单元和含有四价二苯醚基团的递归单元,该聚酰胺酯可通过热固化转化为涂层形式的聚酰亚胺,其中聚酰亚胺涂层相对于在硅基底上形成的 10 微米厚聚酰亚胺涂层而言,显示出 33 兆帕或更小的残余应力。本发明还公开了一种聚酰胺酯组合物,该组合物包含多种不同的聚酰胺酯,其中多种不同的聚酰胺酯以特定比例共同包含含有四价苯基的递归单元和含有四价二苯醚基的递归单元。