| 发明名称 |
POLYIMIDE COPOLYMER, AND PRODUCTION METHOD FOR SAME |
| 摘要 |
The present invention provides: a polyimide copolymer which satisfies solvent solubility, storage stability and heat resistance at high levels and has excellent utility; and a method of producing the same. The polyimide copolymer is obtained by copolymerizing an oligomer of polyimide copolymer, which is obtained by copolymerizing (A) a pyromellitic dianhydride and (B) at least one diamine and/or diisocyanate represented by the following Formula (1) or (2):;(wherein, X represents an amino group or an isocyanate group; R1 to R4 each independently represent a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, an alkenyl group having 2 to 4 carbon atoms or an alkoxy group having 1 to 4 carbon atoms; and at least one of the R1 to R4 is not a hydrogen atom),with (C) second acid dianhydride different from the (A). |
| 申请公布号 |
US2016083521(A1) |
申请公布日期 |
2016.03.24 |
| 申请号 |
US201414785273 |
申请日期 |
2014.04.17 |
| 申请人 |
SOMAR CORPORATION |
发明人 |
TAKIUE Yoshiyasu |
| 分类号 |
C08G73/10 |
主分类号 |
C08G73/10 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A polyimide copolymer, obtained by copolymerizing an oligomer of polyimide copolymer, which is obtained by copolymerizing (A) a pyromellitic dianhydride and (B) at least one diamine and/or diisocyanate represented by the following Formula (1) or (2): (wherein, X represents an amino group or an isocyanate group; R1 to R4 each independently represent a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, an alkenyl group having 2 to 4 carbon atoms or an alkoxy group having 1 to 4 carbon atoms; andat least one of said R1 to R4 is not a hydrogen atom),
with (C) second acid dianhydride different from said (A). |
| 地址 |
Tokyo JP |
