发明名称 |
2,2'-dimethyl-4,4'-bis (4-aminophenoxy) biphenyl, and polymers prepared therefrom by polycondensation |
摘要 |
A new diamine, 2,2'-dimethyl-4,4'-bis(4-aminophenoxy)-biphenyl was synthesized and used to prepare high performance engineering plastics by polycondensation. The new diamine as shown in the following formula has a noncoplanar 2,2'-disubstituted biphenylene and a flexible aryl units: <IMAGE> The engineering plastics disclosed in the present invention includes polyamides, polyimides and poly(amide-imide)s.
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申请公布号 |
US5844065(A) |
申请公布日期 |
1998.12.01 |
申请号 |
US19970855969 |
申请日期 |
1997.05.14 |
申请人 |
NATIONAL SCIENCE COUNCIL |
发明人 |
LIAW, DER-JANG;LIAW, BEEN-YANG |
分类号 |
C07C217/90;C08G69/40;C08G73/10;(IPC1-7):C08G73/10;C08G69/26 |
主分类号 |
C07C217/90 |
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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