发明名称 |
LOW-THERMAL-EXPANSION BLOCK POLYIMIDE, PRECURSOR THEREOF, AND USE THEREOF |
摘要 |
Provided is a low-cost polyimide, containing cyclohexane diamine as a diamine unit, that has a low thermal expansion coefficient. Said block polyimide contains blocks having the repeating structural unit shown in formula (1A) and blocks having the repeating structural unit shown in formula (1B). This block polyimide is preferably obtained by imidizing a block polyamide acid imide that contains blocks having the repeating structural unit shown in formula (2A) and blocks having the repeating structural unit shown in formula (2B). |
申请公布号 |
KR101317020(B1) |
申请公布日期 |
2013.10.11 |
申请号 |
KR20117022646 |
申请日期 |
2010.03.18 |
申请人 |
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发明人 |
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分类号 |
B32B15/088;C08G73/10;C08J5/18;C08L79/08 |
主分类号 |
B32B15/088 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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