Abstract: The present invention relates to an epoxy resin composition. The epoxy resin composition contains an epoxy resin and a cationic polymerization catalyst. The epoxy resin has at least two alicyclic epoxy groups, at least one perfluoroalkyl group having 6 to 12 carbon atoms, at least one alkylsiloxane group, and at least one cyclic group.

Abstract: The invention provides a flow path constituting member for an ink jet recording head, having a low stress and a chemical resistance and capable of forming a coated film enabling easy pattern formation for example by an ultraviolet irradiation, an ink jet recording head utilizing such material, and a method for producing an ink jet recording head. For the flow path constituting member of the ink jet recording head, there is employed an epoxy resin composition including an epoxy resin having at least two epoxy groups within a molecule and a specified structure, and a cationic polymerization initiator.

Abstract: The present invention relates to a curing epoxy resin composition permitting water repellent and ink repellent surface treatment. The epoxy resin composition contains (A) an alkylsiloxane-containing epoxy resin, (B) a cationic polymerization catalyst, and (C) a polyfunctional epoxy compound having a molecular weight of 300 or more, and a static viscosity of 1,000 cps or more at 25° C.

Abstract: An alkylsiloxane-containing epoxy resin composition can suitably be used as water-repellent agent or a water-repellent coating to be advantageously applied to areas that are apt to be brought into contact with solutions and substances containing one or more than one components that can damage the film forming property and the adhesion of an ordinary water-repellent agent. The resin composition comprises at least an alkylsiloxane-containing epoxy resin having two or more than two alkylsiloxane groups and two or more than two cyclic aliphatic epoxy groups in a molecule and a cationic polymerization catalyst.

Abstract: An epoxy resin composition suitable for forming a film of excellent water repellency which comprises an epoxy resin having one or more water repellent groups and two or more cyclic aliphatic epoxy groups per molecule, a triazine-base catalyst for cationic polymerization and a non-polar solvent.

Abstract: An alkylsiloxane-containing epoxy resin composition can suitably be used as water-repellent agent or a water-repellent coating to be advantageously applied to areas that are apt to be brought into contact with solutions and substances containing one or more than one components that can damage the film forming property and the adhesion of an ordinary water-repellent agent. The resin composition comprises at least an alkylsiloxane-containing epoxy resin having two or more than two alkylsiloxane groups and two or more than two cyclic aliphatic epoxy groups in a molecule and a cationic polymerization catalyst.

Abstract: An epoxy resin composition can be used for forming a film having excellent water-repellency on a substrate surface. The epoxy resin composition contains (a) an epoxy resin having at least two alicyclic epoxy groups, at least one perfluoroalkyl group having 6 to 12 carbon atoms, and at least one alkylsiloxane group and (b) a cationic polymerization catalyst. The alicyclic epoxy groups and the perfluoroalkyl group are present in branched chains of the epoxy resin, and the alkylsiloxane group is present in the main chain of the epoxy resin.

Abstract: An embodiment of the invention relates to a novel epoxy resin composition. The epoxy resin composition comprises (i) a first epoxy resin having in the molecule thereof at least one water-repellency-imparting group and two or more cyclic aliphatic epoxy groups, and having a number average molecular weight ranging from 8,000 to 22,000 and a polydispersity ranging from 3.5 to 5.0, (ii) a second epoxy resin having in the molecule thereof at least one water-repellency-imparting group and two or more cyclic aliphatic epoxy groups, having a number average molecular weight ranging from 2,500 to 8,000 and a polydispersity ranging from 1.5 to 3.0, and (iii) a cationic polymerization catalyst.

Abstract: The present invention relates to an epoxy resin composition. The epoxy resin composition contains an epoxy resin and a cationic polymerization catalyst. The epoxy resin has at least two alicyclic epoxy groups, at least one perfluoroalkyl group having 6 to 12 carbon atoms, at least one alkylsiloxane group, and at least one cyclic group.

Abstract: The invention provides a flow path constituting member for an ink jet recording head, having a low stress and a chemical resistance and capable of forming a coated film enabling easily pattern formation for example by an ultraviolet irradiation, an ink jet recording head utilizing such material, and a method for producing an ink jet recording head. For the flow path constituting member of the ink jet recording head, there is employed an epoxy resin composition including an epoxy resin having at least two epoxy groups within a molecule and a specified structure, and a cationic polymerization initiator.

Abstract: The present invention gives manufacturing methods of ink-jet recording heads which solve a problem that in conventional manufacturing methods of ink-jet recording heads for high quality image and fine resolution, recording quality is lowered due to unevenly coated ink-repellent layer caused by a hundreds micro-meter discrepancy between corresponding portions of ejection ports of liquid path forming plate 10 and of the ink-repellent material layer 11 due to a patterning accuracy when the patterning is executed on the same size. In order to solve above-mentioned problem, a manufacturing method where after a second active energy ray setting resin 11 is coated over a first energy ray setting resin 10 for liquid path forming before setting the first resin, then both setting resins are exposed and are developed, is employed.

Abstract: An alkylsiloxane-containing epoxy resin composition can suitably be used as water-repellent agent or a water-repellent coating to be advantageously applied to areas that are apt to be brought into contact with solutions and substances containing one or more than one components that can damage the film forming property and the adhesion of an ordinary water-repellent agent. The resin composition comprises at least an alkylsiloxane-containing epoxy resin having two or more than two alkylsiloxane groups and two or more than two cyclic aliphatic epoxy groups in a molecule and a cationic polymerization catalyst.

Abstract: The present invention relates to a curing epoxy resin composition permitting water repellent and ink repellent surface treatment. The epoxy resin composition contains (A) an alkylsiloxane-containing epoxy resin, (B) a cationic polymerization catalyst, and (C) a polyfunctional epoxy compound having a molecular weight of 300 or more, and a static viscosity of 1,000 cps or more at 25° C.

Abstract: A liquid jet printing head includes a discharging outlet for discharging printing liquid, an energy generating element capable of generating an energy for discharging said liquid through said discharging outlet and a discharging outlet face at which said discharging outlet is arranged, characterized in that said discharging outlet face has a water repellent material layer comprising fine particles of an inorganic material distributed in a water repellent resin in a desired distribution state. A liquid jet printing apparatus provided with said liquid jet printing head.

Abstract: The fluorine-containing epoxy resin composition of the present invention comprises a fluorine-containing epoxy resin having in one molecule at least one perfluoroalkyl group having 6 to 12 carbon atoms and at least two alicyclic epoxy groups, and a cationic polymerization catalyst.

Abstract: A fluorine-containing epoxy resin composition comprising a fluorine-containing aromatic epoxy resin having in one molecule at least one perfluoroalkyl group having 6 to 12 carbon atoms and preferably at least two epoxy groups, a cationic polymerization catalyst, and optionally a compatibilizing agent having an epoxy group and a fluoromethyl group is coated on discharge openings of an ink jet recording head, followed by exposure to activation energy rays in a given pattern form to form cured coatings with a desired pattern so that the discharge openings can be endowed with ink repellency.

Abstract: A method of producing an ink jet recording head, in which a discharge port surface provided with a discharge port, through which ink is discharged, is provided comprises a conductive treatment step of carrying out a conductive treatment of the discharge port surface in a state where a material is present in the portion of the discharge port, a removing step of removing the material to open the discharge port, and an electrolytic deposition step of electrolytically deposit a water repellent material in the conduction-treated region of the discharge port surface.

Abstract: The fluorine-containing epoxy resin composition of the present invention comprises a fluorine-containing epoxy resin having in one molecule at least one perfluoroalkyl group having 6 to 12 carbon atoms and at least two alicyclic epoxy groups, and a cationic polymerization catalyst.

Abstract: A resin composition comprising a fluorine-containing aliphatic epoxy resin having in one molecule at least one perfluoroalkyl group having 6 to 12 carbon atoms and at lest two epoxy groups, a cationic polymerization catalyst, and optionally a compatibilizing agent having an epoxy group and a fluoromethyl group is applied to a discharge opening surface of an ink jet recording head, followed by irradiation with an activation energy ray in a given pattern to form a cured film in a desired pattern, so that the discharge opening surface is endowed with ink repellency.

Abstract: A liquid jet printing head includes a discharging outlet for discharging printing liquid, an energy generating element capable of generating an energy for discharging the liquid through the discharging outlet and a discharging outlet face at which the discharging outlet is arranged, characterized in that the discharging outlet face has a water repellent material layer with fine particles of an inorganic material distributed in a water repellent resin in a desired distribution state. A liquid jet printing apparatus is provided with the liquid jet printing head. The liquid jet printing head enables one to always perform stable ink discharging thereby providing high quality printed images.