Isocyanate composition, method for producing isocyanate composition, and method for producing isocyanate polymer

An isocyanate composition comprising an isocyanate compound of formula (1) and/or formula (2), and comprising, as the isocyanate compound, a trifunctional isocyanate compound having three isocyanate groups in a molecule thereof, and, a difunctional isocyanate compound having two isocyanate groups in a molecule thereof:

• wherein, R1 represents a hydrogen or a monovalent organic group, R2 represents a monovalent organic group, and R1 and R2 may each independently represent a residual group obtained by removing one hydrogen atom of the group R1 or the group R2 from the compound of the formula (1) or the formula (2), or a residual group obtained by removing the group R1 or the group R2 from the compound of the formula (1) or the formula (2), or R1 may represent a group represented by —C(═O)OR2 or —CH2—C(═O)O—R2, at least one of R1 and R2 has isocyanate groups, and a total number of the isocyanate groups present in R1 and R2 is 2 or 3.

An isocyanate composition comprising an isocyanate compound of formula (1) and/or formula (2), and a stabilizer which is different from the isocyanate compound in an amount of 0.002 ppm by mass to 10% by mass, relative to a total mass of the isocyanate compound in the isocyanate composition, wherein the stabilizer is at least one compound selected from the group consisting of saturated and/or unsaturated hydrocarbon compounds having a linear-chain structure, a branched-chain structure, or a cyclic structure, compounds having at least one bond selected from the group consisting of an ether bond and a thioether bond, carbamate group-containing compounds, carbonic acid esters, basic amino compounds, halogen ions, hydrolyzable halogen compounds, metal atoms, and a carbon dioxide,

• wherein, R1 represents a hydrogen or a monovalent organic group, R2 represents a monovalent organic group, and R1 and R2 may each independently represent a residual group obtained by removing one hydrogen atom of the group R1 or the group R2 from the compound of the formula (1) or the formula (2), or a residual group obtained by removing the group R1 or the group R2 from the compound of the formula (1) or the formula (2), or R1 may represent a group represented by —C(═O)OR2 or —CH2—C(═O)O—R2.

An isocyanate composition comprising an isocyanate compound of formula (1) and/or formula (2), comprising, relative to a total mass of the isocyanate compound in the composition, 1.0 ppm by mass to 1.0×103 ppm by mass of a phosphoric acid and/or a phosphoric acid ester, and/or, 1.0 ppm by mass to 1.0×103 ppm by mass of a sulfuric acid and/or a sulfuric acid ester,

• wherein, R1 represents a hydrogen or a monovalent organic group, R2 represents a monovalent organic group, and R1 and R2 may each independently represent a residual group obtained by removing one hydrogen atom of the group R1 or the group R2 from the compound of the formula (1) or the formula (2), or a residual group obtained by removing the group R1 or the group R2 from the compound of the formula (1) or the formula (2), or R1 may represent a group represented by —C(═O)OR2 or —CH2—C(═O)O—R2.