Patent ID: 9212250
Filing Date: 2015-12-15
Classification: C08G

Abstract:
1. A flexible polyurethane foam produced by reacting a polyol-containing composition and a polyisocyanate-containing composition, wherein the polyisocyanate-containing composition comprises toluene diisocyanates, diphenylmethane diisocyanates, or mixtures thereof and wherein the polyol-containing composition comprises 10 to 40 weight percent of a bio-based polyol, 10 to 35 weight percent of an aromatic polyester polyol and 45 to 85 weight percent of a petroleum-based polyether polyol, wherein the bio-based polyol is a functionalized natural oil or a functionalized natural oil-derived fatty acid or fatty ester and has a hydroxyl value within the range of 25 to 230 mg KOH/g; wherein the aromatic polyester polyol has a hydroxyl value of at least 40 mg KOH/g; wherein the petroleum-based polyether polyol has a hydroxyl value within the range of 20 to 90 mg KOH/g; wherein the polyol-containing composition comprises an aromatic ester content derived from the aromatic polyester polyol of at least about 2 weight percent, based on the total weight of the polyol-containing composition, and wherein at least about 80% by weight of the contents of the bio-based polyol are obtained directly or indirectly from a natural oil.