Abstract: Provided is a thermosetting resin composition that has high reactivity, can be adapted to various curing conditions, and has extremely high versatility. The thermosetting resin composition contains a resin component (A) containing —COOR (R is an alkyl group having 50 or less carbon atoms) and a hydroxy group, and a transesterification catalyst (B). A curing start temperature is 130° C. or lower, and a gel fraction when cured under a condition of baking at 150° C. for 30 minutes is 80% or more.

Abstract: An object of the present invention is to provide a method for forming a multilayer coating film with excellent performance such as acid resistance, by using a coating composition which is completely different from conventional clear coating compositions and cheaper than conventional non-melamine curing type, acid/epoxy type, and isocyanate type clear coating compositions. A method for forming a multilayer coating film comprising a step (1) of applying a base coating composition and a step (2) of applying a clear coating composition on a coating film formed in the step (1), wherein the clear coating composition causes a curing reaction through a transesterification reaction between a hydroxyl group and an alkyl ester group.

Abstract: Provided is a thermosetting resin composition, from which a cured product having excellent transparency with less yellowing than that in the related art can be obtained, and which is advantageous in cost because a monomer obtained by using an inexpensive raw material is used. An ester compound contains, in one molecule, at least one functional group represented by the following general formula (1) or (2). (In both the general formulae (1) and (2), R1 is an alkyl group having 50 or less carbon atoms. R2 is an alkylene group having 50 or less carbon atoms that may contain an oxygen atom and a nitrogen atom as a portion thereof.

Abstract: [Problem] To obtain a thermosetting resin composition that has curing performance at a lower temperature and uses transesterification capable of also suitably coping with conversion into an aqueous form as a curing reaction. [Solution] A thermosetting resin composition containing a resin component (A), which includes a structure (a) represented by the following general formula (1) and a hydroxy group (b), and a transesterification catalyst (B). n=0 to 20 R1 is an alkyl group having 50 or less carbon atoms. R3 is hydrogen or an alkyl group having 10 or less carbon atoms.

Abstract: To provide a resin composition, which has both a thermosetting property and active energy curability, satisfactory performances, and excellent performances including handleability of being inexpensive without having a concern about a short pot life after blending with a thermal cross-linking agent as in the related art. The curable resin composition contains: a resin component (A) containing a (meth)acryloyl group (a), a hydroxy group (b), and an alkyl ester group (c); and an initiator (B).

Abstract: An object of the present invention is to provide a thermosetting coating material composition of which a transesterification reaction is a curing reaction, the thermosetting coating material having a property of being usable as a coating material composition. The thermosetting resin composition includes a compound (A) which is a compound (A-a) having two or more —COOR (R is a primary or secondary alkyl group) and/or a compound (A-b) having one —COOR (R is a primary or secondary alkyl group) and a hydroxyl group, and a polyol (B) having two or more hydroxyl groups and a transesterification catalyst (C).

Abstract: An object of the present invention is to obtain an aqueous thermosetting resin composition capable of obtaining satisfactory curing performance by a transesterification reaction between alkyl ester and a hydroxyl group. The aqueous thermosetting resin composition includes a resin component (A) that has —COOR (R is an alkyl group having 50 or less carbon atoms) and a hydroxyl group and a transesterification catalyst (B).

Abstract: It is an object of the present invention to provide an unsaturated group-containing ester compound which can be used as a raw material of a curable composition using transesterification reaction and which is inexpensive and has a good curability, and a polymer, a thermosetting resin composition, and a curable composition which containing the unsaturated group-containing ester compound, respectively.

Abstract: An object of the present invention is to provide a method for forming a multilayer coating film with excellent performance such as acid resistance, by using a coating composition which is completely different from conventional clear coating compositions and cheaper than conventional non-melamine curing type, acid/epoxy type, and isocyanate type clear coating compositions. A method for forming a multilayer coating film comprising a step (1) of applying a base coating composition and a step (2) of applying a clear coating composition on a coating film formed in the step (1), wherein the clear coating composition causes a curing reaction through a transesterification reaction between a hydroxyl group and an alkyl ester group.

Abstract: A thermosetting resin composition using a transesterification reaction as a curing reaction, which has a good curability and can be used in various applications. A thermosetting resin composition comprising a polymer (A) composed of a monomer having a (meth) acrylic acid tertiary alkyl ester and a monomer having a hydroxyl group as a structural unit, and a transesterification catalyst (B) as an essential component, and being organic solvent-type or water-borne, wherein the polymer (A) has a glass transition temperature of 80° C. or lower.

Abstract: It is an object of the present invention to provide an unsaturated group-containing ester compound which can be used as a raw material of a curable composition using transesterification reaction and which is inexpensive and has a good curability, and a polymer, a thermosetting resin composition, and a curable composition which containing the unsaturated group-containing ester compound, respectively.

Abstract: It is an object of the present invention to provide a thermosetting resin composition using a transesterification reaction as a curing reaction, which is inexpensive and has a good curability and can be used in various applications. A thermosetting resin composition which comprises an ester compound having two or more alkyl ester groups in a molecule (A), a compound having two or more hydroxyl groups in a molecule (B), and a transesterification catalyst (C).

Abstract: It is an object of the present invention to provide a thermosetting resin composition using a transesterification reaction as a curing reaction, which has a good curability and can be used in various applications. A thermosetting resin composition comprising a polymer (A) composed of a monomer having a (meth)acrylic acid tertiary alkyl ester and a monomer having a hydroxyl group as a structural unit, and a transesterification catalyst (B) as an essential component, and being organic solvent-type or water-borne, wherein the polymer (A) has a glass transition temperature of 80° C. or lower.