Abstract: An electrostatic coating device that can suppress the arising of corrosion in insulating members and the like surrounding coating material supply and discharge paths because of leakage arising between the paths. An electrostatic coating device is characterized by being provided with: a body part; a head part; a linking part that links the body part and the head part; a coating material path that is a first path disposed from the body part to the head part, wherein a high-voltage is applied along with the coating material (first fluid) being fed; a washing fluid path that is a second path disposed from the body part to the head part, wherein a washing fluid (second fluid) is fed along with a connection to a ground; and a displacement part for displacing all or part of air retained between the coating material path and a washing fluid path with new air.

Abstract: An electrostatic coating device that can suppress the arising of corrosion in insulating members and the like surrounding coating material supply and discharge paths because of leakage arising between the paths. An electrostatic coating device is characterized by being provided with: a body part; a head part; a linking part that links the body part and the head part; a coating material path that is a first path disposed from the body part to the head part, wherein a high-voltage is applied along with the coating material (first fluid) being fed; a washing fluid path that is a second path disposed from the body part to the head part, wherein a washing fluid (second fluid) is fed along with a connection to a ground; and a displacement part for displacing all or part of air retained between the coating material path and a washing fluid path with new air.

Abstract: An electrostatic coating device that can suppress the arising of corrosion in insulating members and the like surrounding coating material supply and discharge paths because of leakage arising between the paths. An electrostatic coating device is characterized by being provided with: a body part; a head part; a linking part that links the body part and the head part; a coating material path that is a first path disposed from the body part to the head part, wherein a high-voltage is applied along with the coating material (first fluid) being fed; a washing fluid path that is a second path disposed from the body part to the head part, wherein a washing fluid (second fluid) is fed along with a connection to a ground; and a displacement part for displacing all or part of air retained between the coating material path and a washing fluid path with new air.

Abstract: An electrostatic painting apparatus includes a painting gun having at one end thereof a paint spray section, and a connection section detachably connectable to an external paint supply section for receiving a supply of paint from the supply section and supplying the received paint to a paint storage section that stores and supplies the supplied paint to the painting gun. The connection section is surrounded and protected by a peripheral wall, so that paint can pass by the other end of the painting gun without reaching the connection section. Consequently, the connection section can be prevented from being undesirably smeared with the paint.

Abstract: The invention provides an intermediate storage device of an electrostatic coating system that can clean efficiently, a method for cleaning the same, and a method for coating. An intermediate storage device 10 comprises: a first hole 141 which is open to a cylinder chamber 14 and is connected to a paint supply source; a second hole 142 which is open to the cylinder chamber 14 and is connected to a coating gun; and a switch means which switches between a first cleaning which cleans the cylinder chamber 14 by supplying cleaning fluid W from the first hole 141 and discharging from the second hole 142 waste fluid that has undergone cleaning and a second cleaning which cleans the cylinder chamber 14 by supplying cleaning fluid W from the second hole 142 and discharging from the first hole 141 waste fluid that has undergone cleaning.

Abstract: An electrostatic painting apparatus includes a painting gun having at one end thereof a paint spray section, and a connection section detachably connectable to an external paint supply section for receiving a supply of paint from the supply section and supplying the received paint to a paint storage section that stores and supplies the supplied paint to the painting gun. The connection section is surrounded and protected by a peripheral wall, so that paint can pass by the other end of the painting gun without reaching the connection section. Consequently, the connection section can be prevented from being undesirably smeared with the paint.

Abstract: The invention provides an intermediate storage device of an electrostatic coating system that can clean efficiently, a method for cleaning the same, and a method for coating. An intermediate storage device 10 comprises: a first hole 141 which is open to a cylinder chamber 14 and is connected to a paint supply source; a second hole 142 which is open to the cylinder chamber 14 and is connected to a coating gun; and a switch means which switches between a first cleaning which cleans the cylinder chamber 14 by supplying cleaning fluid W from the first hole 141 and discharging from the second hole 142 waste fluid that has undergone cleaning and a second cleaning which cleans the cylinder chamber 14 by supplying cleaning fluid W from the second hole 142 and discharging from the first hole 141 waste fluid that has undergone cleaning.

Abstract: A rotary atomizing head (125, 226) is rotatably provided on a leading end of a coating gun (115, 215). The rotary atomizing head (125, 226) is provided with a central paint discharge opening (141, 241) provided in a vicinity of a rotation axis (137, 237) of the rotary atomizing head (125, 226) and an outer paint discharge opening (142, 242) having a central axis (148, 248) inclined relative to the rotation axis (137, 237). A cleaning nozzle (124, 225) has an axis (127, 228) which aligns with the central axis (148, 248) of the outer paint discharge opening (142, 242) when the coating gun (115, 215) is cleaned.

Abstract: An intermediate storage vessel has a cylinder container, a piston provided in the cylinder container so as to be slidable in a reciprocating manner, and an inpour hole portion is provided above the discharge hole portion. An insulation cover is provided so as to cover the intermediate storage vessel and an insulation mechanism, and the cover is removable from the insulation mechanism side.

Abstract: An intermediate storage vessel (26) has a cylinder container (26a), a piston (28) provided in the cylinder container (26a) so as to be slidable in a reciprocating manner, and an inpour hole portion (32) and a discharge hole portion (34) that are opened in a cylinder chamber (30) where the piston (28) slides. The inpour hole portion (32) is provided above the discharge hole portion (34). An insulation cover (70) is provided so as to cover the intermediate storage vessel (26) and an insulation mechanism (20), and the cover is removable from the insulation mechanism (20) side.

Abstract: An apparatus for electrostatically coating a workpiece has an insulating separator valve mechanism for electrically separating a paint supply passage for supplying an electrically conductive paint to a coating gun, into a paint supply passage to which a high voltage will be applied and a paint supply passage to which no high voltage will be applied. The insulating separator valve mechanism has a first valve body connectable to said paint supply passage through a first on/off valve, and a second valve body connectable to said paint supply passage through a second on/off valve. While the first and second valve bodies are connected to each other and the first and second on/off valves are closed, a paint trap is cleaned by a cleaning medium, which is discharged into a second dump passage. A process of cleaning the paint trap for a paint color change is efficiently and reliably carried out to reliably remove paint residuals from the paint trap.

Abstract: A novel ethylene-.alpha.-olefin copolymer and a molded article formed therefrom, wherein (A) a density is 0.870 to 0.945 g/cm.sup.3, (B) a relation between an activation energy of flow Ea (J/mole K) obtained by measurement of viscoelasticity at at least three temperatures in the molten state and a melt flow rate MFR (g/10 min) satisfies the following equation (1):logEa.gtoreq.4.6-0.04.times.logMFR (1),(C) a coefficient Cx of variation of chemical composition distribution represented by the following equation (2) is 0.40 to 0.80:Cx=.sigma./SCB.sub.ave (2)wherein .sigma. is a standard deviation of chemical composition distribution (1/1,000 C) and SCB.sub.ave is the average of short chain branchings per 1,000 C (1/1,000 C), (D) a ratio of a weight average molecular weight Mw to a number average molecular weight Mn (Mw/Mn) is 3 to 20, and (F) a ratio (TVR) of trans-vinylene type carbon-carbon double bonds to total carbon-carbon double bonds as determined with an infrared absorption spectrum being 1 to 30%.

Abstract: A solid catalyst component for olefin polymerization which is produced by reacting (A) a silicon compound with (B) a compound of transition metal of Groups IVa, Va and VIa of the periodic table to obtain a reaction mixture (I), reacting the reaction mixture (I) with (C) an organomagnesium compound selected from organomagnesium compounds or hydrocarbon-soluble complexes between an organomagnesium compound and an organometal compound capable of allowing said organomagnesium compound to be soluble in hydrocarbons to obtain an intermediate product (II), and contacting the intermediate product (II) with (D) an organoaluminum halide compound represented by the general formula R.sub.c.sup.1 AlX.sub.3-c (wherein R.sup.1 is an organic group containing 1 to 20 carbon atoms, X is a halogen and c is a number defined by 0<c<3) and (E) an oxidative compound.

Abstract: A process for producing a highly crystalline .alpha.-olefinic polymer in a high yield, which comprises contacting propylene or a mixture of propylene and another .alpha.-olefin with a mixed catalyst system produced by adding a lactone as the third component to a catalyst system consisting essentially of titanium trichloride (1) and a dialkylaluminum halide (2), by which the by-production of the undesired atactic polymer can be decreased.