Abstract: A drop-off assist device includes: a processor configured to determine that there is a possibility that a target approaching object passes by a door of a host vehicle when a second object is not present between the target approaching object and the host vehicle, correct the predicted movement path based on a position of an edge of the second object when the second object is present between the target approaching object and the host vehicle at a timing of setting the target approaching object, determine that there is the possibility that the target approaching object passes by the door of the host vehicle when the corrected predicted movement path is the path that passes by the door of the host vehicle, and issue an alarm when determining that there is the possibility that the target approaching object passes by the door of the host vehicle.

Abstract: A vehicle exit assist apparatus includes a target information acquisition device configured to detect a target present around a vehicle and acquire information regarding the detected target as target information; and a control unit configured to determine whether or not an obstruction target having a possibility of obstructing a safe vehicle exit of an occupant of the vehicle while the vehicle is stopped is present based on the target information, and to execute vehicle exit assist control that assists in the safe vehicle exit of the occupant when determination is made that the obstruction target is present. The control unit is configured to determine whether or not the obstruction target is a human being, and not to execute the vehicle exit assist control when determination is made that the obstruction target is a human being.

Abstract: A device includes a processor configured to: issue an alarm when a movement path condition is met and a prohibition condition is not met, the movement path condition being met when an approaching object of which a predicted movement path is a path along which the object passes by a door of the host vehicle is present; and not issue the alarm when the prohibition condition is met, even when the movement path condition is met, wherein the prohibition condition includes a condition to be met when a difference between a distance in a transverse direction from the host vehicle to a stationary object and a distance in the transverse direction from the host vehicle to the approaching object is equal to or less than a predetermined value in a case where the stationary object is present, the stationary object being stationary at a side of the host vehicle.

Abstract: A drop-off assist device includes: a processor configured to determine that there is a possibility that a target approaching object passes by a door of a host vehicle when a second object is not present between the target approaching object and the host vehicle, correct the predicted movement path based on a position of an edge of the second object when the second object is present between the target approaching object and the host vehicle at a timing of setting the target approaching object, determine that there is the possibility that the target approaching object passes by the door of the host vehicle when the corrected predicted movement path is the path that passes by the door of the host vehicle, and issue an alarm when determining that there is the possibility that the target approaching object passes by the door of the host vehicle.

Abstract: Disclosed is a method for producing a hydroxyalkyl (meth)acrylate having high production efficiency and placing little burden on a production system. The method for producing a hydroxyalkyl (meth)acrylate comprises a reaction step of reacting (meth)acrylic acid with an alkylene oxide in a reactor while stirring a liquid containing (meth)acrylic acid and the alkylene oxide with a stirrer to obtain a reaction liquid containing a hydroxyalkyl (meth)acrylate, and thereafter a deaeration step of reducing a pressure in the reactor while stirring the reaction liquid with the stirrer to vaporize and remove an unreacted alkylene oxide in the reaction liquid, a number of stirring revolutions of the stirrer in the deaeration step being reduced to 30 to 85% of a number of stirring revolutions of the stirrer in the reaction step.

Abstract: Disclosed is a method for producing a hydroxyalkyl (meth)acrylate having high production efficiency and placing little burden on a production system. The method for producing a hydroxyalkyl (meth)acrylate comprises a reaction step of reacting (meth)acrylic acid with an alkylene oxide in a reactor while stirring a liquid containing (meth)acrylic acid and the alkylene oxide with a stirrer to obtain a reaction liquid containing a hydroxyalkyl (meth)acrylate, and thereafter a deaeration step of reducing a pressure in the reactor while stirring the reaction liquid with the stirrer to vaporize and remove an unreacted alkylene oxide in the reaction liquid, a number of stirring revolutions of the stirrer in the deaeration step being reduced to 30 to 85% of a number of stirring revolutions of the stirrer in the reaction step.

Abstract: A method of producing a methacrylic acid ester which comprises carrying out an ester-exchange reaction between methyl methacrylate and an alcohol or a phenol while removing by-product methanol as an azeotropic mixture with methyl methacrylate from the reaction system under reflux conditions, by the use of a reaction apparatus equipped with a distillation column. A methacrylic acid ester is produced with a good productivity by controlling the reflux ratio.

Abstract: A method of producing a methacrylic acid ester which comprises carrying out an ester-exchange reaction between methyl methacrylate and an alcohol or a phenol while removing by-product methanol as an azeotropic mixture with methyl methacrylate from the reaction system under reflux conditions, by the use of a reaction apparatus equipped with a distillation column. A methacrylic acid ester is produced with a good productivity by controlling the reflux ratio.

Abstract: There is provided a superior decreasing method of an N-oxyl compound contained in an easily polymerizable material, according to which the N-oxyl compound contained in an easily polymerizable material can be sufficiently decreased and loss of the easily polymerizable material is little. The easily polymerizable material containing an N-oxyl compound and an acid are contacted with each other. In addition, not only the N-oxyl compound but also an organic titanium group compound contained in the easily polymerizable material can be sufficiently decreased.

Abstract: There is provided a superior decreasing method of an N-oxyl compound contained in an easily polymerizable material, according to which the N-oxyl compound contained in an easily polymerizable material can be sufficiently decreased and loss of the easily polymerizable material is little. The easily polymerizable material containing an N-oxyl compound and an acid are contacted with each other. In addition, not only the N-oxyl compound but also an organic titanium group compound contained in the easily polymerizable material can be sufficiently decreased.