Abstract: A method for forming a multilayer coating film, comprising the following steps (1) to (5): (1) producing a first aqueous base coating composition comprising combining an acrylic resin dispersion (A) having a core/shell structure and a melamine resin (B), (2) applying the first aqueous base coating composition onto a surface of an object to form an uncured first aqueous base coating film, (3) applying a second aqueous base coating composition onto the uncured first aqueous base coating film to form an uncured second aqueous base coating film, (4) applying a clear coating composition onto the uncured second aqueous base coating film to form an uncured clear coating film, and (5) heat-curing the uncured first aqueous base coating film, the uncured second aqueous base coating film, and the uncured clear coating film obtained in steps (2) to (4) at a time to form the multilayer coating film.

Abstract: Provided is a method for manufacturing a modified aluminosilicate in which a hydroquinone is highly selectively manufactured by a reaction between a phenol and hydrogen peroxide under industrially advantageous conditions, wherein the manufacturing method includes: a second step for treating an aluminosilicate with an acid; a third step for performing primary calcination of the treatment product obtained in the second step; and a fourth step in which the primary calcined product obtained in the third step and liquid containing one or more elements selected from the group consisting of elements in Group 4 and Group 5 of the Periodic Table are brought into contact with each other, and drying and secondary calcination then performed.