IMIDE RESIN - RIKOGAKU SHINKOKAI

Title:

IMIDE RESIN

Document Type and Number:

Japanese Patent JP2002265601

Kind Code:

A

Abstract:

To provide a polyimide soluble in an organic solvent.

This method for synthesizing the polyimide soluble in the organic solvent is exemplified as follows: At first, 1, 3, 5-tri(3',4'- dicarboxyphenoxy)benzene is dissolved in acetic anhydride and toluene, and heated under reflux to obtain 1,3,5-tri(3',4'-dicarboxylic anhydride phenoxy) benzene. Then, to a solution obtained by dissolving 1,3,5-tri(3',4'-dicarboxylic anhydride phenoxy)benzene in N,N-dimethylacetamide(DMAc), a solution obtained by dissolving 1,4-phenylenediamine is added. After agitating the reaction solution, a solution obtained by dissolving toluidine is added and further agitated. A polyamide acid having terminal groups of toluidine is obtained. Finally, the obtained polyamide acid is dissolved in DMAc, acetic anhydride and pyridine are added into it and the mixture is left standing. The polyimide having terminal groups of toluylimide is obtained.

Inventors:

KAKIMOTO MASAAKI
JIKYO MITSUTOSHI
HAO JANJUN

Application Number:

JP2001063614A

Publication Date:

September 18, 2002

Filing Date:

March 07, 2001

Export Citation:

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Assignee:

RIKOGAKU SHINKOKAI

International Classes:

C07D307/89; C07D493/14; C08G73/10; H01L21/312; (IPC1-7): C08G73/10; C07D307/89; C07D493/14; H01L21/312

Attorney, Agent or Firm:

Hidekuma Matsukuma

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