Polyimide precursor liquid composition and polyimide coating film
First Claim
1. A polyimide precursor liquid composition, comprising:
- at least one type of tetracarboxylic dianhydride or derivative thereof;
at least one type of diamine or derivative thereof; and
a polar polymerization solvent;
wherein the polyimide precursor liquid composition further includes a cyclic compound that has a 5 member ring structure that includes a carbonyl group (C═
O bond);
wherein the cyclic compound has a boiling point of 200°
C. or more and comprises carbon, hydrogen and oxygen atoms and does not include hetero atoms of nitrogen, phosphorous and sulfur; and
wherein the tetracarboxylic dianhydride or derivative thereof includes the chemical formula B described below (where X represents —
O—
, —
S—
, —
SO—
, —
SO2—
, —
CH2—
, —
CF2—
, —
C(CH3)2—
, —
C(CF3)2—
or a direct bond);
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Accused Products
Abstract
A polyimide precursor liquid composition of the present invention includes at least one type of tetracarboxylic dianhydride or derivative thereof, at least one type of diamine or derivative thereof, and a polar polymerization solvent, wherein the polyimide precursor liquid composition further includes a cyclic compound, and wherein the cyclic compound has a boiling point of 200° C. or more and comprises carbon, hydrogen and oxygen atoms. A polyimide coating film of the present invention is obtained by converting the polyimide precursor liquid composition into imide. Thus, the present invention provides a polyimide coating or film that is substantially colorless and transparent, and that is useful as, for example, a heat resistant coating film for liquid crystals, organic electroluminescence, touch panels and solar cells and the like.
25 Citations
17 Claims
-
1. A polyimide precursor liquid composition, comprising:
-
at least one type of tetracarboxylic dianhydride or derivative thereof;
at least one type of diamine or derivative thereof; and
a polar polymerization solvent;
wherein the polyimide precursor liquid composition further includes a cyclic compound that has a 5 member ring structure that includes a carbonyl group (C═
O bond);
wherein the cyclic compound has a boiling point of 200°
C. or more and comprises carbon, hydrogen and oxygen atoms and does not include hetero atoms of nitrogen, phosphorous and sulfur; and
wherein the tetracarboxylic dianhydride or derivative thereof includes the chemical formula B described below (where X represents —
O—
, —
S—
, —
SO—
, —
SO2—
, —
CH2—
, —
CF2—
, —
C(CH3)2—
, —
C(CF3)2—
or a direct bond);
- View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A polyimide coating film that is obtained by converting a polyimide precursor liquid composition into an imide, the polyimide precursor liquid composition comprising:
-
at least one type of tetracarboxylic dianhydride or derivative thereof;
at least one type of diamine or derivative thereof; and
a polar polymerization solvent;
wherein the polyimide precursor liquid composition further includes a cyclic compound that has a 5 member ring structure that includes a carbonyl group (C═
O bond);
wherein the cyclic compound has a boiling point of 200°
C. or more and comprises carbon, hydrogen and oxygen atoms and does not include hetero atoms of nitrogen, phosphorous and sulfur; and
wherein the tetracarboxylic dianhydride or derivative thereof includes a chemical formula B described below (where X represents —
O—
, —
S—
, —
SO—
, —
SO2—
, —
CH2—
, —
CF2—
, —
C(CH3)2—
, —
C(CF3)2—
or a direct bond);
- View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17)
-
Specification