Abstract: A liquid ejecting apparatus includes a liquid ejecting head that includes a nozzle opening which ejects liquid and a valve unit that is connected to the liquid ejecting head and opens and closes a flow passage of the liquid, in which the valve unit includes a valve seat which is provided in the flow passage and a valve body which opens and closes the flow passage by coming into contact with or being separated from the valve seat, the valve seat includes a contacting member coming into contact with the valve body and a supporting member which supports the contacting member, the contacting member is assembled with the supporting member in a state in which the supporting member is subjected to a water repellent treatment more than the inner surface of the flow passage, and the valve body includes an elastic member coming into contact with the valve seat and a fixing member which fixes the elastic member.

Abstract: A liquid ejecting apparatus includes a liquid ejecting head that includes a nozzle opening which ejects liquid and a valve unit that is connected to the liquid ejecting head and opens and closes a flow passage of the liquid, in which the valve unit includes a valve seat which is provided in the flow passage and a valve body which opens and closes the flow passage by coming into contact with or being separated from the valve seat, the valve seat includes a contacting member coming into contact with the valve body and a supporting member which supports the contacting member, the contacting member is assembled with the supporting member in a state in which the supporting member is subjected to a water repellent treatment more than the inner surface of the flow passage, and the valve body includes an elastic member coming into contact with the valve seat and a fixing member which fixes the elastic member.

Abstract: A method for producing an acid group-containing polyarylene sulfide of the present invention includes a reaction step of reacting a polyhaloaromatic compound (a), an alkali metal hydrosulfide (b), and an alkali metal carboxylate (c) in the presence of a solid alkali metal sulfide and a lithium ion.

Abstract: A method for producing an acid group-containing polyarylene sulfide of the present invention includes a reaction step of reacting a polyhaloaromatic compound (a), an alkali metal hydrosulfide (b), an alkali metal carboxylate (c), and an aromatic compound (d) having an elimination group and an acid group, which function in a nucleophilic reaction, in the presence of a solid alkali metal sulfide.

Abstract: A method for producing an acid group-containing polyarylene sulfide of the present invention includes a reaction step of reacting a polyhaloaromatic compound (a), an alkali metal hydrosulfide (b), an alkali metal carboxylate (c), and an aromatic compound (d) having an elimination group and an acid group, which function in a nucleophilic reaction, in the presence of a solid alkali metal sulfide.

Abstract: A method for producing an acid group-containing polyarylene sulfide of the present invention includes a reaction step of reacting a polyhaloaromatic compound (a), an alkali metal hydrosulfide (b), and an alkali metal carboxylate (c) in the presence of a solid alkali metal sulfide and a lithium ion.

Abstract: A method of producing a liquid ejection head comprising: a flow path forming substrate in which a space including pressure generating chambers and an ink reserving chamber is formed; a nozzle plate which is stacked on one face of the flow path forming substrate; and a vibration plate which is stacked on the other face of the flow path forming substrate is provided. The flow path forming substrate is formed by a monocrystal silicon substrate in which a plane of crystal plane orientation of (110) is the surface.

Abstract: A method of producing a liquid ejection head comprising: a flow path forming substrate in which a space including pressure generating chambers and an ink reserving chamber is formed; a nozzle plate which is stacked on one face of the flow path forming substrate; and a vibration plate which is stacked on the other face of the flow path forming substrate is provided. The flow path forming substrate is formed by a monocrystal silicon substrate in which a plane of crystal plane orientation of (110) is the surface.

Abstract: A process for producing oxidative cross-linked polyarylene sulfide using a reaction apparatus including a reaction vessel provided with a resin inlet, a gas inlet, a resin outlet, and a gas outlet, and a transverse type heating member having a helical structure which is rotatable around a central shaft disposed in the reaction vessel. The process includes the step of supplying heated oxygen containing gas to the polyarylene sulfide from the downward direction of the transverse type heating member while the polyarylene sulfide is heated and agitated by the rotation of the transverse type heating member to carry out an oxidative cross-linking reaction of the polyarylene sulfide. According to the process, it becomes possible to increase the productivity and the gas components present in polyarylene sulfide can be effectively removed when the melt viscosity of polyarylene sulfide is increased to a desired degree after polymerizing the polyarylene sulfide.

Abstract: A process for producing oxidative cross-linked polyarylene sulfide using a reaction apparatus including a reaction vessel provided with a resin inlet, a gas inlet, a resin outlet, and a gas outlet, and a transverse type heating member having a helical structure which is rotatable around a central shaft disposed in the reaction vessel. The process includes the step of supplying heated oxygen containing gas to the polyarylene sulfide from the downward direction of the transverse type heating member while the polyarylene sulfide is heated and agitated by the rotation of the transverse type heating member to carry out an oxidative cross-linking reaction of the polyarylene sulfide. According to the process, it becomes possible to increase the productivity and the gas components present in polyarylene sulfide can be effectively removed when the melt viscosity of polyarylene sulfide is increased to a desired degree after polymerizing the polyarylene sulfide.

Abstract: A resin composition for a molding material is provided which comprises a resol-type phenolic resin, an epoxy resin and an amine compound having hydrogen atoms directly bonded to the nitrogen atom. The amine compound is contained in such a proportion that the amount of its hydrogen atoms directly bonded to the nitrogen atom is 0.5 to 2.0 equivalents per equivalent of the epoxy groups of the epoxy resin.