Polymer-modified polyols useful in polyurethane manufacture
AssigneeInterchem International S.A.
InventorJeffrey P. Rowlands
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Abstract
A polymer-modified polyol is formed by polymerizing an olamine, particularly an alkanolamine, with an organic polyisocyanate in the presence of a polyol. The alkanolamine reacts polyfunctionally with the polyisocyanate to produce polyaddition products. The polyaddition products may constitute a stable dispersion in the polyol and the resulting polymer-modified polyol is particularly useful as a polyol starting material for reaction with a polyisocyanate in the manufacture of polyurethane foam.
Claims29
A method of forming a polymer-modified polyol, comprising polymerising a starting material with an organic polyisocyanate in the presence of a polyol with the polyol acting at least predominantly as an unreacted carrier, the starting material being triethanolamine and the triethanolamine reacting at least predominently polyfunctionally with the isocyanate.
A polymer-modified polyol comprising a polyol and a polyaddition product resulting from the reaction of triethanolamine at least predominantly polyfunctionally with an organic polyisocyanate.
A method of forming a polyurethane wherein an isocyanate is reacted with a preformed polymer-modified polyol, said polymer-modified polyol comprising a polyol and a polyaddition product resulting from the reaction of an olamine at least predominantly polyfunctionally with an organic polyisocyanate.
A polyurethane foam material formed by the reaction of a polyol and an isocyanate in the presence of a blowing agent and containing a polyaddition product resulting from the reaction of an olamine at least predominantly polyfunctionally with an organic polyisocyanate.
A method of forming a polymer-modified polyol, comprising polymerising a starting material with an organic polyisocyanate in the presence of a polyol containing predominantly primary hydroxy groups with the polyol acting at least predominantly as an unreacted carrier, the starting material being an olamine and the olamine reacting at least predominantly polyfunctionally with the isocyanate.
A polymer-modified polyol comprising a polyol containing predominantly primary hydroxyl groups and a nonionic polyaddition product resulting from the reaction of an olamine at least predominantly polyfunctionally with an organic polyisocyanate.
A polyurethane formed by the reaction of a polyol and an isocyanate and containing a polyaddition product resulting from the reaction of triethanolamine at least predominantly polyfunctionally with an organic polyisocyanate.
Dependencies are inferred from the claim text.