Polyol, polyol composition, and flexible polyurethane foam using the same

摘要

Disclosed are a polyol with a molecular weight distribution Mw/Mn of 4 or more, obtained by reacting a compound comprising an alkylene oxide compound (II) having a hydroxyl group in a base polyol (I) with a molecular weight of 2000 or more; and a polyol composition for a flexible polyurethane foam, comprising a polyol compound and a crosslinker, wherein the crosslinker comprises a polyol (a) with a hydroxyl value of 50 to 1100 mgKOH/g and with a primary hydroxylate ratio of 25% or more and 60% or less, which is obtained by an addition of a compound comprising alkylene oxide compound (ii) having a hydroxyl group to active hydrogen compound (i).

主权项

1. A polyol (A) with a molecular weight distribution Mw/Mn of 4 or more, obtained by reacting a compound (II) having a hydroxyl group selected from the group consisting of 2-hydroxytetrahydrofuran, 3-hydroxyoxetane, glycidol, 1,2-epoxy-3-butanol, 3-hydroxycyclopentene oxide, 2,3-epoxy-2-methyl-1-propanol, 2,3-epoxybutanol, 3,4-epoxy-3-methyl-2-pentanol, 3,4-epoxy-4-methyl-2-pentanol, 2,3-epoxycyclohexanol, 2,3-epoxy-4-hydroxyhexane, 6-oxabicyclo [3.1.0]hexane-2,4-diol, 6-oxabicyclo [3.1.0]hexane-2,3-diol, 2,3-epoxy-1,4 butanediol, 1,2-epoxy-3-pentanol, and 2,3-epoxy-4-heptanol in a base polyol (I) with a molecular weight Mn of 2000 or more.