申请人:Mitsubishi Gas Chemical Company, Inc.
公开号:EP2009058A1
公开(公告)日:2008-12-31
The present invention can provide a thermosetting polyimide resin composition that provides a cured product having flexibility and adhesiveness, has a long pot life, and has high heat resistance.
The thermosetting polyimide resin composition of the present invention is obtained by the following steps (1) to (3):
Step (1): mixing a tetracarboxylic acid component containing at least one compound selected from a tetracarboxylic dianhydride represented by formula (1), a tetracarboxylic acid represented by formula (2) and a derivative of the tetracarboxylic acid, with an aliphatic diamine represented by formula (3), to make a number of moles of the tetracarboxylic acid component excessive to a number of moles of the aliphatic diamine, and reacting them under heating to synthesize a polyimide (A);
Step (2): mixing the polyimide (A) obtained in the step (1) with an aromatic diamine represented by formula (4), and reacting them under heating to synthesize a polyimide (B); and
Step (3): mixing the polyimide (B) obtained in the step (2) with a bismaleimide compound represented by formula (5):
(wherein R1 represents a tetravalent organic group)
(wherein R1 represents a tetravalent organic group, and Y1 to Y4 each independently represent a hydrocarbon group having from 1 to 8 carbon atoms)
H2N-X1-NH2 (3)
(wherein X1 represents a divalent organic group having from 1 to 221 carbon atoms, and containing an aliphatic group or an alicyclic group bonded directly to an amino group, wherein the divalent organic group may contain a substituent, such as an aromatic group, an ether group and the like, as a part of the structure thereof)
H2N-X2-NH2 (4)
(wherein X2 represents a divalent organic group having from 6 to 27 carbon atoms, and containing an aromatic ring bonded directly to an amino group, wherein the divalent organic group may contain a substituent, such as an aliphatic group, an alicyclic group and the like, as a part of the structure thereof)
(wherein Z represents a divalent organic group).
本发明可提供一种热固性聚酰亚胺树脂组合物,该组合物可提供具有柔韧性和粘合性的 固化产品,具有较长的固化寿命和较高的耐热性。
本发明的热固性聚酰亚胺树脂组合物通过以下步骤(1)至(3)获得:
步骤 (1):将含有至少一种选自式(1)代表的四羧酸二酐、式(2)代表的四羧酸和四羧酸衍生物的化合物的四羧酸组分与式(3)代表的脂肪族二胺混合,使四羧酸组分的摩尔数超过脂肪族二胺的摩尔数,并在加热下反应合成聚酰亚胺(A);
步骤(2):将步骤(1)中得到的聚酰亚胺(A)与由式(4)代表的芳香族二胺混合,并在加热下反应,合成聚酰亚胺(B);以及
步骤(3):将步骤(2)中得到的聚酰亚胺(B)与式(5)代表的双马来酰亚胺化合物混合:
(其中 R1 代表四价有机基团)
(其中 R1 代表四价有机基团,Y1 至 Y4 各自独立地代表具有 1 至 8 个碳原子的烃基团)。
H2N-X1-NH2 (3)
(其中 X1 代表具有 1 至 221 个碳原子的二价有机基团,并含有直接与氨基键合的脂 族基团或脂环族基团,二价有机基团可含有取代基,如芳香基团、醚基团等,作为其 结构的一部分)
H2N-X2-NH2 (4)
(其中 X2 代表具有 6 至 27 个碳原子的二价有机基团,该二价有机基团含有一个直接与氨基键合的芳香环,其中二价有机基团可含有一个取代基,如脂肪族基团、脂环族基团等,作为其结构的一部分)。
(其中 Z 代表二价有机基团)。