Abstract: Provided are a composition capable of forming a cured product with excellent hardness, scratch resistance, chemical resistance, and flexibility; and a polyisocyanate compound that can be used as a curing agent for the composition. The polyisocyanate compound is represented by Formula (1), wherein R1 to R3 are identical or different and are a group represented by Formula (1a), wherein L1 and L2 are identical or different and represent an alkylene group having from 1 to 10 carbons, m represents a number of 0 or greater, L3 represents a divalent hydrocarbon group having from 4 to 18 carbons, and X represents an isocyanate group or a blocked isocyanate group blocked with a blocking agent, where m is not simultaneously 0 for R1 to R3, and the bond with the wavy line bonds to a nitrogen atom in Formula (1). In addition, the composition contains a polyisocyanate compound and a polyacrylic polyol.

Abstract: Provided are a composition capable of forming a cured product with excellent hardness, scratch resistance, chemical resistance, and flexibility; and a polyisocyanate compound that can be used as a curing agent for the composition. The polyisocyanate compound is represented by Formula (1), wherein R1 to R3 are identical or different and are a group represented by Formula (1a), wherein L1 and L2 are identical or different and represent an alkylene group having from 1 to 10 carbons, m represents a number of 0 or greater, L3 represents a divalent hydrocarbon group having from 4 to 18 carbons, and X represents an isocyanate group or a blocked isocyanate group blocked with a blocking agent, where m is not simultaneously 0 for R1 to R3, and the bond with the wavy line bonds to a nitrogen atom in Formula (1). In addition, the composition contains a polyisocyanate compound and a polyacrylic polyol.

Abstract: Provided is a composition capable of forming a cured product having excellent adhesion to a substrate, hardness, scratch resistance, and chemical resistance. The composition of the present disclosure includes a polyol compound (A) and an isocyanate compound (B), the polyol compound (A) containing a compound (a1) having a number average molecular weight calibrated with polystyrene standards of less than 800 and being represented by Formula (1), where R1 to R3 are a group represented by Formula (1a); and the isocyanate compound (B) containing a compound (b) represented by Formula (2), where L1 to L3 are a hydrogen atom, an NCO group, or an alkyl group having from 1 to 10 carbon atom(s) and having a group represented by Formula (2?).

Abstract: Provided is a novel polycarbonate polyol derivative having a terminal amino group. The polycarbonate polyol derivative of the present disclosure is represented by Formula (1) below. In Formula (1), A denotes a group having a polycarbonate skeleton, and n and m are average values and are numbers satisfying n?2 and n?m>0. The group A in Formula (1) is a group in which all hydroxyl groups are removed from the structural formula of a polycarbonate polyol having a number average molecular weight from 300 to 10000, and preferably includes a group having a repeating unit represented by Formula (a) below.

Abstract: Provided is a composition capable of forming a cured product excelling in adhesion to a substrate, hardness, scratch resistance, and chemical resistance. The composition of the present disclosure contains a polyol compound (A) and an isocyanate compound (B) The polyol compound (A) includes a compound (a1) represented by Formula (1) below, where R1 to R3 each are a group represented by Formula (1a), the compound (a1) having a number average molecular weight (calibrated with polystyrene standard) of 800 or greater. The isocyanate compound (B) includes a polyisocyanate compound having an isocyanurate skeleton.

Abstract: Provided is a polyester polyol that can be used for forming a polyurethane excelling in durability and solvent resistance. A polyester polyol of the present invention is represented by Formula (1) and has a molecular weight distribution of less than 1.2: In Formula (1), R1 and R2 represent, identically or differently a divalent hydrocarbon group, and n is an integer. R3 to R7 represent, identically or differently a hydrogen atom, a monovalent hydrocarbon group, or a group represented by Formula (2): In Formula (2), m and s represent, identically or differently an integer of 1 or greater. 2m occurrences of R8 represent, identically or differently a hydrogen atom, an alkyl group, or an alkoxy group.

Abstract: Provided is a novel lactone polymer containing a tertiary nitrogen atom and a polymerizable group. The lactone polymer is useful as a material monomer for various functional polymeric materials. The lactone polymer containing a tertiary nitrogen atom and a polymerizable group according to the present invention is obtained by allowing a compound (A) represented by Formula (1) to react with a polyisocyanate compound (B) and a hydroxy-containing (meth)acrylate compound (C), where Formula (1) is expressed as follows: wherein R1 typically represents a divalent hydrocarbon group; R2 is selected typically from hydrogen and a hydrocarbon group; A1 is selected from a nitrogen-containing heteroaromatic group and a group represented by one of Formulae (2) and (3): wherein R3 and R4 typically represent a hydrocarbon group; and R5 typically represents a hydrocarbon group; A2 represents a C2-C9 straight or branched chain alkylene group; and n represents an integer of 1 to 50.