发明名称 |
POLYIMIDE AND HIGH-TEMPERATURE ADHESIVE OF POLYIMIDE |
摘要 |
<p>Polyimide having repeating units of the following formula (I) and its polyamic acid precursor having repeating units of the following formula (II) are disclosed; (I) (II) (where Y is a divalent radical selected from the group consisting of a bond, divalent hydrocarbon having 1 to 10 carbons, hexafluorinated isopropylidene, carbonyl, thio, sulfinyl, sulfonyl and oxide, and R is a tetra-valent radical selected from the group consisting of aliphatic radical having 2 and more carbons, cyclo-allphatic radical, monoaromatic radical, condensed polyaromatic radical, and noncondensed polyaromatic radical wherein aromatic radicals are mutually connected with a bond or a crosslinking function). Typical examples of polyimide and polyamic acid include where Y is thio radical and R is or (III) (IV), Y is a bond and R is III or IV, and Y is isopropylidene radical and R is IV. The polymers can be prepared from corresponding diamine and tetracarboxylic acid dianhydride. Polyimide or polyamic acid of this invention is excellent for high-temperature adhesive.</p> |
申请公布号 |
CA1268592(A) |
申请公布日期 |
1990.05.01 |
申请号 |
CA19860515976 |
申请日期 |
1986.08.14 |
申请人 |
MITSUI TOATSU CHEMICALS, INC. |
发明人 |
OHTA, MASAHIRO;KAWASHIMA, SABURO;SONOBE, YOSHIHO;TAMAI, SHOJI;OIKAWA, HIDEAKI;OHKOSHI, KOUJI;YAMAGUCHI, AKIHIRO |
分类号 |
C08G73/10;C09J179/08;(IPC1-7):C08G73/10;C09J3/16 |
主分类号 |
C08G73/10 |
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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