IP Library Granted Patent US 7,510,815
Granted Patent B2
US 7,510,815 · App. 10/592,119 · Granted Mar 31, 2009

Removing solution for photosensitive composition

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Quick Facts
Patent No.
US 7,510,815
App. No.
10/592,119
Granted
Mar 31, 2009
Kind
B2
Abstract

A removing solution for photosensitive composition for removal of colored pigment-containing photosensitive compositions, comprising at least one solvent selected from the group consisting of alkylene glycol monoalkyl ether carboxylic acid esters, alkoxycarboxylic acid esters and alicyclic ketones, at least one solvent selected from the group consisting of linear amides, cyclic amides, sulfur-containing compounds and cyclic esters, and if desired an aromatic hydrocarbon having 9 or more carbon atoms. The removing solution for photosensitive composition exhibits excellent photosensitive composition removing performance.

Claims (32)

1. A removing solution for photosensitive composition which is a removing solution for a colored photosensitive composition containing a pigment, comprising

(1) 99-70 mass % of at least one solvent selected from the group consisting of alkylene glycol monoalkyl ether carboxylic acid esters, alkoxycarboxylic acid esters and alicyclic ketones, and

(2) 1-30 mass % of at least one solvent selected from the group consisting of linear amides, cyclic amides, sulfur-containing compounds and cyclic esters.

2. A removing solution for photosensitive composition which is a removing solution for a colored photosensitive composition containing a pigment, comprising

(1) 98-40 mass % of at least one solvent selected from the group consisting of alkylene glycol monoalkyl ether carboxylic acid esters, alkoxycarboxylic acid esters and alicyclic ketones,

(2) 1-30 mass % of at least one solvent selected from the group consisting of linear amides, cyclic amides, sulfur-containing compounds and cyclic esters, and

(3) up to 50 mass % of an aromatic hydrocarbon having 9 or more carbon atoms.

3. A removing solution for photosensitive composition which is a removing solution for a red photosensitive composition containing a pigment, comprising

(1) 99-80 mass % of at least one solvent selected from the group consisting of alkylene glycol monoalkyl ether carboxylic acid esters, alkoxycarboxylic acid esters and alicyclic ketones, and

(2) 1-20 mass % of at least one solvent selected from the group consisting of linear amides, cyclic amides, sulfur-containing compounds and cyclic esters.

4. A removing solution for photosensitive composition which is a removing solution for a red photosensitive composition containing a pigment, comprising

(1) 98-50 mass % of at least one solvent selected from the group consisting of alkylene glycol monoalkyl ether carboxylic acid esters, alkoxycarboxylic acid esters and alicyclic ketones,

(2) 1-20 mass % of at least one solvent selected from the group consisting of linear amides, cyclic amides, sulfur-containing compounds and cyclic esters, and

(3) up to 30 mass % of an aromatic hydrocarbon having 9 or more carbon atoms.

5. A removing solution for photosensitive composition which is a removing solution for a green, blue or black photosensitive composition containing a pigment, comprising

(1) 95-70 mass % of at least one solvent selected from the group consisting of alkylene glycol monoalkyl ether carboxylic acid esters, alkoxycarboxylic acid esters and alicyclic ketones, and

(2) 5-30 mass % of at least one solvent selected from the group consisting of linear amides, cyclic amides, sulfur-containing compounds and cyclic esters.

6. A removing solution for photosensitive composition which is a removing solution for a green, blue or black photosensitive composition containing a pigment, comprising

(1) 94-40 mass % of at least one solvent selected from the group consisting of alkylene glycol monoalkyl ether carboxylic acid esters, alkoxycarboxylic acid esters and alicyclic ketones,

(2) 5-30 mass % of at least one solvent selected from the group consisting of linear amides, cyclic amides, sulfur-containing compounds and cyclic esters, and

(3) up to 30 mass % of an aromatic hydrocarbon having 9 or more carbon atoms.

7. A removing solution for photosensitive composition according to claim 2 , wherein the aromatic hydrocarbon having 9 or more carbon atoms is an alkylbenzene with a boiling point of 150-250° C.

8. A removing solution for photosensitive composition according to claim 1 , wherein at least one solvent selected from the group consisting of linear amides, cyclic amides, sulfur-containing compounds and cyclic esters is at least one compound selected from the group consisting of N,N-dimethylformamide, N,N-dimethylacetamide, N-methylpyrrolidone, dimethylsulfoxide and γ-butyrolactone.

9. A removing solution for photosensitive composition according to claim 1 , wherein the alkylene glycol monoalkyl ether carboxylic acid ester is at least one compound selected from the group consisting of propylene glycol monomethyl ether acetate and 3-methoxybutyl acetate.

10. A removing solution for photosensitive composition according to claim 1 , wherein the alkoxycarboxylic acid ester is at least one compound selected from the group consisting of methyl 3-methoxypropionate and ethyl 3-ethoxypropionate.

11. A removing solution for photosensitive composition according to claim 1 , wherein the alicyclic ketone is at least one compound selected from the group consisting of cyclohexanone, cyclopentanone and methylcyclohexanone.

12. A removing solution for photosensitive composition according to claim 1 , which is used for removal of an acrylic photosensitive composition containing a colored pigment.

13. A removing solution for photosensitive composition according to claim 1 , which is used for removal of a photosensitive composition containing a pigment prior to exposure to light.

14. An apparatus in which a photosensitive composition containing a colored pigment is removed using a removing solution for photosensitive composition according to claim 1 .

15. A color filter obtained by an apparatus according to claim 14 .

16. A device equipped with a color filter according to claim 15 .

17. A substrate that has been treated for removal of a photosensitive composition containing a colored pigment using a removing solution for photosensitive composition according to claim 1 .

Assignments (3)
CHANGE OF ADDRESS Recorded Feb 14, 2024
From: RESONAC CORPORATION
To: RESONAC CORPORATION
Reel/Frame 066599/0037 →
CHANGE OF NAME Recorded Jun 23, 2023
From: SHOWA DENKO K.K.
To: RESONAC CORPORATION
Reel/Frame 064082/0513 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 8, 2006
From: KANEDA, MASATO
To: SHOWA DENKO K.K.
Reel/Frame 018307/0637 →