Alkoxysilane-modified polyamic acid solution, laminate and flexible device using same, and laminate manufacturing method
AssigneeKaneka Corporation
InventorsTakahiro Akinaga, Yuki Takiguchi, Shinji Ozawa
Life of this patent
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Abstract
Provided are a polyamic acid solution that can be formed into a film without peeling even when the film is thick and can be stably stored at room temperature, and a laminate that can be suitably used for production of a flexible device. In the alkoxysilane-modified polyamic acid solution according to the present invention, an additive amount of an alkoxysilane compound that contains an amino group is more than 0.050 parts by weight and less than 0.100 parts by weight.
Claims11
An alkoxysilane-modified polyamic acid solution obtained by reacting an alkoxysilane compound and a polyamic acid in a solution with stirring at 50° C. to 80° C. for 2 to 5 hours, wherein the alkoxysilane compound comprises an amino group,
- wherein
- the polyamic acid is obtained by reacting an aromatic diamine and an aromatic tetracarboxylic acid dianhydride in a solvent,
- a molar ratio obtained by dividing a total number of moles of the aromatic tetracarboxylic acid dianhydride by a total number of moles of the aromatic diamine is 0.980 or more and 0.9995 or less, and,
- when an amount of the polyamic acid contained in the alkoxysilane-modified polyamic acid solution is 100 parts by weight, an additive amount of the alkoxysilane compound is more than 0.050 parts by weight and less than 0.100 parts by weight.
An alkoxysilane-modified polyamic acid solution obtained by reacting an alkoxysilane compound and a polyamic acid in a solution with stirring at 50° C. to 80° C. for 2 to 5 hours, wherein the alkoxysilane compound comprises an amino group,
- wherein the polyamic acid is obtained by reacting an aromatic diamine and an aromatic tetracarboxylic acid dianhydride in a solvent,
- wherein a molar ratio obtained by dividing a total number of moles of the aromatic tetracarboxylic acid dianhydride by a total number of moles of the aromatic diamine is 0.980 or more and 0.9995 or less,
- wherein, when an amount of the polyamic acid contained in the alkoxysilane-modified polyamic acid solution is 100 parts by weight, an additive amount of the alkoxysilane compound is more than 0.050 parts by weight and less than 0.100 parts by weight, and
- wherein a water content of the alkoxysilane-modified polyamic acid solution is 500 ppm or more and 3000 ppm or less.
A method of manufacturing an alkoxysilane-modified polyamic acid solution, the method comprising:
- obtaining a polyamic acid by reacting an aromatic diamine and an aromatic tetracarboxylic acid dianhydride in a solvent;
- and
- obtaining an alkoxysilane-modified polyamic acid solution by reacting an alkoxysilane compound and the polyamic acid in a solution with stirring at 50° C. to 80° C. for 2 to 5 hours, wherein the alkoxysilane compound comprises an amino group,
- wherein
- a molar ratio obtained by dividing a total number of moles of the aromatic tetracarboxylic acid dianhydride by a total number of moles of the aromatic diamine is 0.980 or more and 0.9995 or less, and,
- when an amount of the polyamic acid contained in the alkoxysilane-modified polyamic acid solution is 100 parts by weight, an additive amount of the alkoxysilane compound is more than 0.050 parts by weight and less than 0.100 parts by weight.
A method of manufacturing an alkoxysilane-modified polyamic acid solution, the method comprising:
- obtaining a polyamic acid by reacting an aromatic diamine and an aromatic tetracarboxylic acid dianhydride in a solvent;
- and
- obtaining an alkoxysilane-modified polyamic acid solution by reacting an alkoxysilane compound and the polyamic acid in a solution with stirring at 50° C. to 80° C. for 2 to 5 hours, wherein the alkoxysilane compound comprises an amino group,
- wherein a molar ratio obtained by dividing a total number of moles of the aromatic tetracarboxylic acid dianhydride by a total number of moles of the aromatic diamine is 0.980 or more and 0.9995 or less,
- wherein, when an amount of the polyamic acid contained in the alkoxysilane-modified polyamic acid solution is 100 parts by weight, an additive amount of the alkoxysilane compound is more than 0.050 parts by weight and less than 0.100 parts by weight, and
- wherein a water content of the alkoxysilane-modified polyamic acid solution is 500 ppm or more and 3000 ppm or less.
Dependencies are inferred from the claim text.