Abstract: The present invention aims to provide a method of producing a polyether polyol having a low aldehyde content, the method including simpler steps; and a method of producing polyurethane foam having a reduced amount of aldehyde volatilization. The present invention provides a method of producing a polyether polyol (F) including step (1) of obtaining a crude polyether polyol composition (D2) having a pH higher than 5.0 by contact of a crude polyether polyol composition (D1) containing a polyether polyol (A) with an acid catalyst (B) in the presence of water, the polyether polyol (A) being obtainable by ring-opening polymerization of an alkylene oxide with an active hydrogen compound; and step (2) of removing a volatile component containing an aldehyde (C) after step (1).

Abstract: A substrate processing apparatus includes: at least one processing part for etching a polysilicon film or an amorphous silicon film formed on a substrate using an alkaline chemical liquid; a reservoir configured to recover and store the chemical liquid used in the at least one processing part; processing lines configured to supply the chemical liquid stored in the reservoir to the at least one processing part; a circulation line configured to take out the chemical liquid from the reservoir and to return the same to the reservoir; and a first gas supply line connected to the circulation line and configured to supply an inert gas to the circulation line. The circulation line includes an ejection port configured to eject a mixed fluid of the inert gas supplied by the first gas supply line and the chemical liquid taken out from the reservoir into the chemical liquid stored in the reservoir.

Abstract: A substrate processing apparatus includes a holding device that holds a substrate horizontally, a rotation device that rotates the holding device such that the substrate held by the holding device is rotated, a supply device that includes a nozzle and supplies etching liquid from the nozzle to the substrate held by the holding device, a movement device that moves the nozzle with respect to the substrate held by the holding device, and a control device including circuitry that executes a scan process in which the circuitry controls the rotation, movement and supply devices such that while the liquid is supplied from the nozzle to the substrate, the nozzle is moved back and forth over the substrate between first and second positions on outer peripheral side of the substrate relative to the first position. The circuit of the control device executes the scan process multiple times while changing the first position.

Abstract: The present invention aims to provide a method of producing a polyether polyol having a low aldehyde content, the method including simpler steps; and a method of producing polyurethane foam having a reduced amount of aldehyde volatilization. The present invention provides a method of producing a polyether polyol (F) including step (1) of obtaining a crude polyether polyol composition (D2) having a pH higher than 5.0 by contact of a crude polyether polyol composition (D1) containing a polyether polyol (A) with an acid catalyst (B) in the presence of water, the polyether polyol (A) being obtainable by ring-opening polymerization of an alkylene oxide with an active hydrogen compound; and step (2) of removing a volatile component containing an aldehyde (C) after step (1).

Abstract: A liquid processing apparatus of the present disclosure holds and rotate a substrate in a substrate holding unit, ejects an etching liquid while moving a main nozzle of a main nozzle unit between a first position where the etching liquid reaches a center of the substrate and a second position closer to a peripheral side of the substrate than the first position, and then, ejects the etching liquid to the substrate from a sub nozzle provided at a third position closer to the peripheral side of the substrate than the first position at an ejection flow rate higher than that from the main nozzle.

Abstract: A substrate processing apparatus includes a holding device that holds a substrate horizontally, a rotation device that rotates the holding device such that the substrate held by the holding device is rotated, a supply device that includes a nozzle and supplies etching liquid from the nozzle to the substrate held by the holding device, a movement device that moves the nozzle with respect to the substrate held by the holding device, and a control device including circuitry that executes a scan process in which the circuitry controls the rotation, movement and supply devices such that while the liquid is supplied from the nozzle to the substrate, the nozzle is moved back and forth over the substrate between first and second positions on outer peripheral side of the substrate relative to the first position. The circuit of the control device executes the scan process multiple times while changing the first position.

Abstract: Disclosed are a substrate liquid processing apparatus and method for performing a liquid processing on a substrate using a processing liquid, and a computer-readable recording medium with a substrate liquid processing program recorded therein. In the method, a first chemical liquid supply step is performed to supply a first chemical liquid from a first chemical liquid supply unit to a processing liquid storage unit, a first chemical liquid purifying step is performed to purify the first chemical liquid in a chemical liquid purifying unit, a second chemical liquid supply step is performed to supply a second chemical liquid from a second chemical liquid supply unit to the processing liquid storage unit, and a processing liquid supply step is performed to supply the processing liquid obtained by mixing the first and second chemical liquids from the processing liquid supply unit to substrate liquid processing units.

Abstract: A liquid processing apparatus and a chemical liquid collecting method can suppress corrosion of wirings formed on a substrate. The liquid processing apparatus includes a processing unit configured to perform a liquid process by supplying a chemical liquid to a substrate; a collecting line configured to collect the chemical liquid supplied to the processing unit; a supply line configured to supply the collected chemical liquid to the processing unit; and a gas supply unit configured to supply an inert gas into the collecting line.

Abstract: Disclosed are a substrate liquid processing apparatus and method for performing a liquid processing on a substrate using a processing liquid, and a computer-readable recording medium with a substrate liquid processing program recorded therein. In the method, a first chemical liquid supply step is performed to supply a first chemical liquid from a first chemical liquid supply unit to a processing liquid storage unit, a first chemical liquid purifying step is performed to purify the first chemical liquid in a chemical liquid purifying unit, a second chemical liquid supply step is performed to supply a second chemical liquid from a second chemical liquid supply unit to the processing liquid storage unit, and a processing liquid supply step is performed to supply the processing liquid obtained by mixing the first and second chemical liquids from the processing liquid supply unit to substrate liquid processing units.

Abstract: A liquid processing apparatus of the present disclosure holds and rotate a substrate in a substrate holding unit, ejects an etching liquid while moving a main nozzle of a main nozzle unit between a first position where the etching liquid reaches a center of the substrate and a second position closer to a peripheral side of the substrate than the first position, and then, ejects the etching liquid to the substrate from a sub nozzle provided at a third position closer to the peripheral side of the substrate than the first position at an ejection flow rate higher than that from the main nozzle.

Abstract: Disclosed is a liquid processing method which may de-electrify the surface of a hydrophobized substrate. A substrate electrified according to a liquid processing is de-electrified by supplying a hydrophobizing liquid to a surface of the substrate subjected to the liquid processing while rotating the substrate, and performing rinsing by supplying an alkaline rinsing liquid to the hydrophobized surface of the substrate.

Abstract: An antistatic resin composition is provided, from which a thermoplastic resin molded article having a sufficient permanent antistatic property without impairing an excellent mechanical property or a good appearance of the molded article, even in a case that the content of an antistatic agent contained in the composition is less than that in a conventional composition, is provided. The antistatic resin composition contains an antistatic agent (A) and a thermoplastic resin (B), in which a melt viscosity ratio of the thermoplastic resin (B) to the antistatic agent (A) at 220° C. is 0.5-5 and an absolute value of a difference between solubility parameters (SPs) of the antistatic agent (A) and the thermoplastic resin (B) is 1.0-3.0. The antistatic resin molded article is obtained by molding the antistatic resin composition.

Abstract: A liquid processing apparatus and a chemical liquid collecting method can suppress corrosion of wirings formed on a substrate. The liquid processing apparatus includes a processing unit configured to perform a liquid process by supplying a chemical liquid to a substrate; a collecting line configured to collect the chemical liquid supplied to the processing unit; a supply line configured to supply the collected chemical liquid to the processing unit; and a gas supply unit configured to supply an inert gas into the collecting line.

Abstract: Provided are a substrate liquid processing apparatus, a substrate liquid processing method, and a computer readable storage medium having a substrate liquid processing program stored therein that can prevent the occurrence of the electrostatic breakdown caused by the discharge of electric charges in a substrate. The substrate liquid processing apparatus processes a circuit-forming surface of the substrate with a chemical liquid. Furthermore, prior to processing the substrate with the chemical liquid, the substrate liquid processing apparatus performs an anti-static process for an surface opposite to the circuit-forming surface of the substrate by an anti-static liquid, thereby emitting the electric charges on the substrate.

Abstract: Disclosed are a cleaning apparatus and a cleaning method, which can collect a chemical liquid without reducing the throughput after a substrate is subjected to a cleaning treatment and dried by using a drying solvent, such as IPA. The disclosed cleaning apparatus carries out a chemical liquid cleaning treatment, a rinsing treatment, and a drying treatment with IPA, in order, on a wafer W while rotating wafer W, and includes a cleaning liquid supply device for supplying a cleaning liquid for cleaning the drain cup and the drain tube to the drain cup in a state where the cleaning liquid is not supplied to the wafer. Also, the apparatus further includes a control unit for controlling respective components of the cleaning apparatus. The control unit, after the cleaning treatment and then the rinsing treatment of wafer W, at the time when the drying treatment is performed by IPA, controls the cleaning liquid to be supplied to the drain cup.

Abstract: In a liquid processing apparatus configured to remove, from a substrate including a first film and a second film formed above the first film, the first film and the second film, a first chemical-liquid supply part supplies, to a substrate W, a first liquid for dissolving the first film, a second chemical-liquid supply part supplies a second chemical liquid for weakening the second film, and a fluid supply part serving also as an impact giving part gives a physical impact to the second film so as to break the second film and supplies a fluid for washing away debris of the broken second film. A control device controls the respective parts such that, after the second liquid has been supplied and then the fluid has been supplied from the fluid supply part, the first chemical liquid is supplied.

Abstract: An antistatic resin composition is provided, from which a thermoplastic resin molded article having a sufficient permanent antistatic property without impairing an excellent mechanical property or a good appearance of the molded article, even in a case that the content of an antistatic agent contained in the composition is less than that in a conventional composition, is provided. The antistatic resin composition contains an antistatic agent (A) and a thermoplastic resin (B), in which a melt viscosity ratio of the thermoplastic resin (B) to the antistatic agent (A) at 220° C. is 0.5-5 and an absolute value of a difference between solubility parameters (SPs) of the antistatic agent (A) and the thermoplastic resin (B) is 1.0-3.0. The antistatic resin molded article is obtained by molding the antistatic resin composition.

Abstract: After a rinse process on a wafer W is performed by feeding pure water to the surface of the wafer W at a predetermined flow rate while rotating the wafer W in an approximately horizontal state, a feed amount of the pure water to the wafer W is reduced, and a pure-water feed point is moved outward from the center of the wafer W. In this manner, the wafer W is subjected to a spin dry process while forming a liquid film in a substantially outer region of the pure-water feed point.

Abstract: After a rinse process on a wafer W is performed by feeding pure water to the surface of the wafer W at a predetermined flow rate while rotating the wafer W in an approximately horizontal state, a feed amount of the pure water to the wafer W is reduced, and a pure-water feed point is moved outward from the center of the wafer W. In this manner, the wafer W is subjected to a spin dry process while forming a liquid film in a substantially outer region of the pure-water feed point.

Abstract: Provided are a substrate liquid processing apparatus, a substrate liquid processing method, and a computer readable storage medium having a substrate liquid processing program stored therein that can prevent the occurrence of the electrostatic breakdown caused by the discharge of electric charges in a substrate. The substrate liquid processing apparatus processes a circuit-forming surface of the substrate with a chemical liquid. Furthermore, prior to processing the substrate with the chemical liquid, the substrate liquid processing apparatus performs an anti-static process for an surface opposite to the circuit-forming surface of the substrate by an anti-static liquid, thereby emitting the electric charges on the substrate.