Abstract: A method of coating without permitting the coating solution to flow onto the side surfaces or the back surfaces of the lenses in the operation for applying the coating solution onto the lenses. A lens 15 is spin-coated with the coating solution having a particular viscosity. A side edge portion 121 of a spatula 119 is brought into contact with an upper edge portion of a side surface 15a of the lens 15 before the coating solution fed onto the surface of the lens arrives at the peripheral edge portion of the lens. The side edge portion 121 of the spatula 119 is so arranged that the upper end side of the spatula is tilted toward the center side of the lens 15 at an angle of 5 to 35 degrees with the vertical line as a reference. The coating solution applied onto the lens 15 that is rotating adheres onto the spatula 119 but does not adhere onto the side surface of the lens 15.

Abstract: The invention intends to provide a method for preventing deterioration in quality of the primer layer resulting from spinning-off and reattachment of a primer liquid on forming a polyurethane primer layer on a substrate for an eyeglass lens or the like using a coating composition containing a moisture-curing polyurethane resin. The method for producing a laminate according to the present invention comprises performing spin-coating while a spin-coating apparatus is forcefully evacuated through the side wall and/or the bottom thereof, on producing a laminate by spin-coating the surface of a substrate with a coating composition containing a moisture-curing polyurethane resin.

Abstract: A method of coating without permitting the coating solution to flow onto the side surfaces or the back surfaces of the lenses in the operation for applying the coating solution onto the lenses. A lens 15 is spin-coated with the coating solution having a particular viscosity. A side edge portion 121 of a spatula 119 is brought into contact with an upper edge portion of a side surface 15a of the lens 15 before the coating solution fed onto the surface of the lens arrives at the peripheral edge portion of the lens. The side edge portion 121 of the spatula 119 is so arranged that the upper end side of the spatula is tilted toward the center side of the lens 15 at an angle of 5 to 35 degrees with the vertical line as a reference. The coating solution applied onto the lens 15 that is rotating adheres onto the spatula 119 but does not adhere onto the side surface of the lens 15.

Abstract: It is an objective of the present invention to reduce or prevent incorporation of bubbles into a coating film formed by spin coating a surface of a substrate with a coating liquid having a high viscosity at a relatively high discharging velocity. The spin coating method relating to the present invention comprises the steps of discharging a coating liquid from the tip of a nozzle and dropping onto a surface of a rotating substrate to form a uniform coating film on the surface of the substrate, characterized in that the distance between the tip of the nozzle and the surface of the substrate during discharging the coating liquid is 2.5 mm or less.

Abstract: The invention intends to provide a method for preventing deterioration in quality of the primer layer resulting from spinning-off and reattachment of a primer liquid on forming a polyurethane primer layer on a substrate for an eyeglass lens or the like using a coating composition containing a moisture-curing polyurethane resin. The method for producing a laminate according to the present invention comprises performing spin-coating while a spin-coating apparatus is forcefully evacuated through the side wall and/or the bottom thereof, on producing a laminate by spin-coating the surface of a substrate with a coating composition containing a moisture-curing polyurethane resin.

Abstract: A spirofluorenol such as 3?,9?-dimethoxy-5?-hydroxyspiro[(1H-cyclopent[d,e,f]phenanthrene)-1,7?-benzo[c]fluorene] is produced by protecting a hydroxyl group bonded to a particular fluorenone compound such as 3,9-dimethoxy-5-hydroxybenzo[c]fluorene-7-one with “a substituted silyl group in which the sum of carbon atoms of substituents bonded to a silicon atom is 5 to 12”, such as a t-butyldimethylsilyl group, then, reacting the fluorenone compound with a particular organometal compound such as 1-lithiophenanthrene so as to be transformed into a spiro form and, then, removing the protection therefrom. This method makes it possible to efficiently produce the spirofluorenol which is useful as a starting material for producing photochromic compounds.

Abstract: A spirofluorenol such as 3?,9?-dimethoxy-5?-hydroxyspiro[(1H-cyclopent[d,e,f]phenanthrene)-1,7?-benzo [c] fluorene] is produced by protecting a hydroxyl group bonded to a particular fluorenone compound such as 3,9-dimethoxy-5-hydroxybenzo[c]fluorene-7-one with “a substituted silyl group in which the sum of carbon atoms of substituents bonded to a silicon atom is 5 to 12”, such as a t-butyldimethylsilyl group, then, reacting the fluorenone compound with a particular organometal compound such as 1-lithiophenanthrene so as to be transformed into a spiro form and, then, removing the protection therefrom. This method makes it possible to efficiently produce the spirofluorenol which is useful as a starting material for producing photochromic compounds.

Abstract: A herbicidal composition containing an ethenylamide compound as a herbicidally effective component and a dichloroacetamide compound as a safener.

Abstract: A process for producing an ethenyl amide compound, which comprises reacting a Schiff base compound having a carbon atom adjacent to a carbon atom constituting an imino group and at least one hydrogen atom on the carbon atom with an acylhalide at a reduced pressure while removing by-produced hydrogen halide by distillation to produce an ethenyl amide compound having an amide bond in the molecule and a double bond between carbons at .alpha.-position and .beta.-position with respect to the nitrogen atom of the amide bond.