Composition and cured product of same

A composition comprising:

• a polyol compound (A) and
• an isocyanate compound (B),
• wherein the polyol compound (A) comprises a compound (a1) having a number average molecular weight calibrated with polystyrene standards of less than 800, the compound (a1) being represented by Formula (1):
• wherein in Formula (1), R1 to R3, each identical or different, are a group represented by Formula (1a):
• wherein in Formula (1a), L1 and L2, each identical or different, represent an alkylene group having from 1 to 10 carbon atom(s), and m represents a number of 0 or greater, except m does not simultaneously equal 0 for R1 to R3, and the bond with the wavy line binds to a nitrogen atom in Formula (1);
• and
• wherein the isocyanate compound (B) comprises a compound (b) represented by Formula (2):
• wherein in Formula (2), L3 to L5, each identical or different, represent 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′), except L3 to L5 do not simultaneously represent hydrogen atoms:
• wherein in Formula (2′), L6 and L7, each identical or different, represent an alkylene group having from 1 to 10 carbon atom(s), and the bond with the wavy line binds to a carbon atom of the alkyl group having from 1 to 10 carbon atom(s) in L3 to L5 in Formula (2);
• and
• wherein a content of the isocyanate compound (B) in the composition is from 40 to 140 parts by weight relative to 100 parts by weight of the polyol compound (A).