Abstract: Disclosed herein are a di-(1-vinylimidazole) metal phthalocyanine compound in which 1-vinylimidazoles as ligands are included in a phthalocyanine having a metal, a composition comprising the same and a preparation method thereof. The di-(1-vinylimidazole) metal phthalocyanine compound has an excellent UV blocking effect together with low surface resistance and is prepared but by charging a powder phase with nitrogen, not by dissolving raw materials in an organic solvent as in the prior art.

Abstract: Disclosed herein are a di-(4-vinylpyridine) metal phthalocyanine compound in which 4-vinylpyridines as ligands are included in a phthalocyanine having a metal, a composition comprising the same and a preparation method thereof. The di-(4-vinylpyridine) metal phthalocyanine compound has an excellent UV blocking effect together with low surface resistance and is prepared but by charging a powder phase with nitrogen, not by dissolving raw materials in an organic solvent as in the prior art.

Abstract: Disclosed herein are a di-(4-vinylpyridine) metal phthalocyanine compound in which 4-vinylpyridines as ligands are included in a phthalocyanine having a metal, a composition comprising the same and a preparation method thereof. The di-(4-vinylpyridine) metal phthalocyanine compound has an excellent UV blocking effect together with low surface resistance and is prepared but by charging a powder phase with nitrogen, not by dissolving raw materials in an organic solvent as in the prior art.

Abstract: Disclosed herein are a di-(1-vinylimidazole) metal phthalocyanine compound in which 1-vinylimidazoles as ligands are included in a phthalocyanine having a metal, a composition comprising the same and a preparation method thereof. The di-(1-vinylimidazole) metal phthalocyanine compound has an excellent UV blocking effect together with low surface resistance and is prepared but by charging a powder phase with nitrogen, not by dissolving raw materials in an organic solvent as in the prior art.

Abstract: A poly cross linked phthalocyanine compound for a solar cell and ink composition comprising the same, and more particularly a poly cross linked phthalocyanine compound effective for use in a near infrared absorbent having a high absorption power in a near infrared wavelength from about 750 nm to about 1100 nm, wherein the poly cross linked phthalocyanine compound having structures according to the present inventive concept is sensitized to infrared region, although ruthenium-based compound used for existing dye-sensitized solar cells is sensitized to visible light region, such that the compound according to the present novel concept can be extended in wavelengths for use in solar cells to improve an energy conversion efficiency.

Abstract: A poly cross linked phthalocyanine compound for a solar cell and ink composition comprising the same, and more particularly a poly cross linked phthalocyanine compound effective for use in a near infrared absorbent having a high absorption power in a near infrared wavelength from about 750 nm to about 1100 nm, wherein the poly cross linked phthalocyanine compound having structures according to the present inventive concept is sensitized to infrared region, although ruthenium-based compound used for existing dye-sensitized solar cells is sensitized to visible light region, such that the compound according to the present novel concept can be extended in wavelengths for use in solar cells to improve an energy conversion efficiency.

Abstract: The invention herein relates to a soluble polyimide resin having a dialkyl substituent for a liquid alignment layer, wherein aliphatic tetracarboxylic dianhydride and aromatic diamine having a dialkyl substituent are used to yield said soluble polyimide resin which has superior heat-resistance, solubility, transparency, and liquid crystal alignment capacity. According to the present invention, the soluble polyimide polymer having a dialkyl substituent, for a liquid crystal alignment layer, comprising the following a repetitive unit of formula 1: ##STR1## Consequently, the polyimide resin under the present invention not only has superior heat-resistance but also excellent solubility and transparency, which could be applicable as a liquid crystal alignment layer for the TFT-LCD requiring a low temperature processing.

Abstract: Disclosed is a method for the preparation of 3-(hydroxyphenylphosphinyl)-propanoic acid which is commonly used as a flame retardant for polyester resins. The preparation of 3-(hydroxyphenylphosphinyl)-propanoic acid is attained by the condensation of phenylphosphonous dichloride and acrylic acid and the hydrolysis of the condensate. In the condensation, the mole ratio of phenylphosphonous dichloride to acrylic acid is within the range of 1:1.1 to 1:1.25. Under a pressure of greater than 1 atm, acrylic acid is added at 65.about.110.degree.C. at an amount more by 10.about.25 mole % than that of phenylphosphonous dichloride and the condensation is carried out at a temperature of 70.about.100.degree. C. under at greater than 1 atm, to produce 3-(hydroxyphenylphosphinyl)-propanoic acid at high yields with desired color.

Abstract: The invention herein relates to a soluble polyimide resin for a liquid crystal alignment layer and the process of preparation of the same, wherein aliphatic tetracarboxylic dianhydride and aromatic diamine having the amide group are used to yield a novel form of a polyimide resin having superior heat-resistance, solubility, transparency, and liquid crystal alignment capacity.More specifically, the invention herein relates to a novel polyimide resin having excellent heat-resistance, solubility, liquid crystal alignment property, and high pretilt angle, which is prepared by means of jointly using the aromatic diamine, used for the preparation of the conventional polyimide resin, and the aromatic diamine having a long alkyl chain with a substituted amide group, and reacting the same with various types of carboxylic dianhydride.

Abstract: A photopolymerization photoresist composition having a binder resin, a multifunctional compound, a photopolymerization initiator, a sensitizer and other additives. The photopolymerization initiator has one or more 4,6-bis(chloromethyl)-s-triazine compound containing a diazophenyl group. The initiator acts as a chromophore and is represented by the following general formula I: ##STR1## wherein the position at which the diazo group bonds to phenyl group may be changed. R is an aliphatic radical or an unsubstituted- or substituted aromatic radical and n is an integer of 0 to 2.