Abstract: The invention provides a method for producing an ink jet recording head having a high durability and a high ink resistance and enabling a high-quality image recording by employing a material capable of reducing the internal stress and having satisfactory patterning characteristics. It also provides a method of producing such ink jet recording head with a high precision. A cationically photopolymerizable resin composition containing a condensate of a hydrolysable organosilane compound, employed as a material for forming a flow path forming member, enables a reduction of internal stress and a highly precise pattern in the flow path forming member thereby providing an ink jet recording head having a high durability and a high ink resistance and capable of high-quality printing over a prolonged time, and a producing method therefor.

Abstract: The invention provides a method for producing an ink jet recording head having a high durability and a high ink resistance and enabling a high-quality image recording by employing a material capable of reducing the internal stress and having satisfactory patterning characteristics. It also provide a method of producing such ink jet recording head with a high precision. A cationically photopolymerizable resin composition containing a condensate of a hydrolysable organosilane compound, employed as a material for forming a flow path forming member, enables a reduction of internal stress and a highly precise pattern in the flow path forming member thereby providing an ink jet recording head having a high durability and a high ink resistance and capable of high-quality printing over a prolonged time, and a producing method therefor.

Abstract: A sealing tape for an ink jet recording head, detachably adhered to the surface of a chip which is provided on an ink jet recording head and on which a discharge port for discharging ink is formed, includes: a base layer; and an adhesive layer on the base layer, the adhesive layer consisting of: (1) 70 to 100 wt % of (A)-(B)-(A) block copolymers which have no unsaturated carbon bond and consist of (a) vinyl aromatic compound units and (b) olefinic hydrocarbon units where (A) is a polymer block consisting of the (a) units and (B) is a polymer block consisting of the (b) units; and (2) 0 to 30 wt % of polyolefin, wherein the content of the (a) vinyl aromatic compound units in the (1) (A)-(B)-(A) block copolymers is 10 to 30 wt %.

Abstract: The invention provides a composite composition comprising a cationically polymerizable organic resin, a cationic photoinitiator, a hydrolysate and/or condensate of at least one hydrolysable silane compound and inorganic nanoparticles. The composite composition is suitable for the preparation of patterned moulded articles or substrates having a patterned coating, in particular by photolithography. Micropatterns obtained show improved properties, such as a high shape stability and an excellent elastic modulus.

Abstract: A method for producing an ink jet recording head having high durability and high ink resistance can enable high-quality image recording by employing a material capable of reducing the internal stress and having satisfactory patterning characteristics. Such an ink jet recording head can be produced with high precision. A cationically photopolymerizable resin composition containing a condensate of a hydrolysable organosilane compound, employed as a material for forming a flow path forming member, enables a reduction of internal stress and a highly precise pattern in the flow path forming member, thereby providing an ink jet recording head having a high durability and a high ink resistance and capable of high-quality printing over a prolonged time.

Abstract: An ink jet recording head can record an image having a high quality level for a long period of time by use of a material having a reduced linear expansion coefficient and a satisfactory patterning characteristic. The liquid discharge head includes an energy generating element which generates energy for discharging a liquid; a discharge port which discharges the liquid; and a flow path forming member to form a flow path which supplies the liquid to the discharge port, the flow path forming member being formed of a cured material of a resin composition including a cationic polymerizable resin, a cationic photopolymerization initiator, a condensation product of hydrolyzable organic silane compounds, and inorganic fine particles having an average particle diameter of 50 nm or less.

Abstract: A method for manufacturing a recording head includes providing a recording element substrate and a circuit board having an inner lead connector, the recording element substrate including an energy generating element configured to generate energy used to discharge ink and an electrical connector to be electrically connected to the element, bonding the electrical connector of the recording element substrate to the inner lead connector of the circuit board, and applying a thixotropic sealant to the inner lead connector to seal the inner lead while exerting shear force on the sealant.

Abstract: The invention provides a method for producing an ink jet recording head having a high durability and a high ink resistance and enabling a high-quality image recording by employing a material capable of reducing the internal stress and having satisfactory patterning characteristics. It also provides a method of producing such ink jet recording head with a high precision. A cationically photopolymerizable resin composition containing a condensate of a hydrolysable organosilane compound, employed as a material for forming a flow path forming member, enables a reduction of internal stress and a highly precise pattern in the flow path forming member thereby providing an ink jet recording head having a high durability and a high ink resistance and capable of high-quality printing over a prolonged time, and a producing method therefor.

Abstract: The invention provides a composite composition comprising a cationically polymerizable organic resin, a cationic photoinitiator, a hydrolysate and/or condensate of at least one hydrolysable silane compound and inorganic nanoparticles. The composite composition is suitable for the preparation of patterned moulded articles or substrates having a patterned coating, in particular by photolithography. Micropatterns obtained show improved properties, such as a high shape stability and an excellent elastic modulus.

Abstract: A liquid discharge head comprises a discharge port member provided with a discharge port to discharge a liquid and a tape having an adhesive layer comprising an adhesive, which tape adheres to a surface having the discharge port of the discharge port member so that the discharge port is sealed through the adhesive layer. The adhesive contains a compound having at least one of an epoxy group and an oxetanyl group and a compound having a ketimine group.

Abstract: There is disclosed an ink jet recording head in which an image having a high quality level can be recorded for a long period of time by use of a material having a reduced linear expansion coefficient and a satisfactory patterning characteristic. The liquid discharge head comprises: an energy generating element which generates energy for discharging a liquid; a discharge port which discharges the liquid; and a flow path forming member to form a flow path which supplies the liquid to the discharge port, the flow path forming member being formed of a cured material of a resin composition including a cationic polymerizable resin, a cationic photopolymerization initiator, a condensation product of hydrolyzable organic silane compounds, and inorganic fine particles having an average particle diameter of 50 nm or less.