Polyisocyanate composition, polyurethane-forming composition, adhesive composition, and polyurethane

Abstract

A polyisocyanate composition that has low viscosity, is easily mixed with a curing agent, and forms an adhesive layer with excellent reliability and durability when used as a raw material for polyurethane adhesive compositions. [Solution] A polyisocyanate composition containing a reaction product of a chlorine-containing polyether polyol represented by the following formula (1) and an isocyanate compound, characterized in that the mixing ratio of the chlorine-containing polyether polyol and the isocyanate compound at the time of the reaction charge is such that the molar ratio of the total amount of NCO groups of the isocyanate compound to the total amount of OH groups of the chlorine-containing polyether polyol is NCO / OH = 5.0 / 1 to 70.0 / 1. JPEG2026088797000006.jpg46116

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