Polyurethane foams modified with nonionic surfactants
AssigneeHenkel Kommanditgesellschaft auf Aktien
InventorsPeter Daute, Roland Gruetzmacher, Johann Klein, Hermann Kluth, Rainer Hoefer
Life of this patent
Estimating the term…
Abstract
A polyurethane composition for the production of single-component polyurethane foams on dry or wet substrates, wherein the composition is the reaction product of a polyol with a molar excess of difunctional or polyfunctional isocyanates and wherein 10% to 80% by weight of the polyol has been replaced by a nonionic surfactant containing at least one hydroxyl group.
Claims8
A polyurethane composition for the production of single-component polyurethane foams on dry or wet substrates, said composition comprising the reaction product of a polyol with a molar excess of difunctional or polyfunctional isocyanates wherein 10% to 80% by weight of said polyol has been replaced by a nonionic surfactant consisting essentially of epoxidized soybean oil ring-opened with alcohols or carboxylic acids which after ring opening has been reacted with an alkylene oxide to a content of 20% to 400% by weight of alkylene oxide, based on non-alkoxylated soybean oil.
The process of producing a fine-cell, homogeneous single-component polyurethane foam on a dry or wet substrate comprising applying to said substrate a polyurethane composition comprising the reaction product of a polyol with a molar excess of difunctional or polyfunctional isocyanates wherein 10% to 80% by weight of said polyol has been replaced by a nonionic surfactant consisting essentially of epoxidized soybean oil ring-opened with alcohols or carboxylic acids which after ring opening has been reacted with alkoxylene oxide to a content of 20% to 400% by weight of alkylene oxide based on non-alkoxylated soybean oil.
Dependencies are inferred from the claim text.