Abstract: A polyurethane foam article comprises a first lift, a second lift, and a pass-line therebetween. The polyurethane foam article comprises the reaction product of an isocyanate-reactive resin composition, an isocyanate, and an indicator dye in the presence of a blowing agent. The indicator dye imparts a color in the first and second lifts and at the pass-line at a first temperature below a decomposition temperature of the indicator dye. The indicator dye chemically decomposes to impart a change in color in the first and second lifts and at the pass-line at a second temperature which is at or above the decomposition temperature of the indicator dye.

Abstract: A polyurethane foam and a resin composition that may be used to form the polyurethane foam are provided. The resin composition includes a first polyol based upon ethylene diamine and having about 100% ethylene oxide capping and present in an amount of from about 0.3 to about 15 parts by weight based on 100 parts by weight of the resin composition, a second polyol, and a physical blowing agent having at least 4 carbon atoms. The polyurethane foam includes the reaction product of an isocyanate component and the resin composition comprising the first and second polyol, in the presence of the physical blowing agent. A method of forming the polyurethane foam on a substrate combines the isocyanate component and the resin composition to form a reaction mixture. The reaction mixture is applied onto the substrate to form the polyurethane foam.

Abstract: A polyurethane foam article comprises a first lift, a second lift, and a pass-line therebetween. The polyurethane foam article comprises the reaction product of an isocyanate-reactive resin composition, an isocyanate, and an indicator dye in the presence of a blowing agent. The indicator dye imparts a color in the first and second lifts and at the pass-line at a first temperature below a decomposition temperature of the indicator dye. The indicator dye chemically decomposes to impart a change in color in the first and second lifts and at the pass-line at a second temperature which is at or above the decomposition temperature of the indicator dye.

Abstract: The subject invention provides an open-celled polyurethane foam formed from a polyurethane spray foam system that mixes a formulated resin component with an isocyanate component. The resultant open-celled polyurethane spray foam has a density of about ½ pound per cubic foot. The resin component includes water as a blowing agent, a first aliphatic, amine-initiated polyol having a number-average molecular weight of from 150 to 500 and having tetra-functionality, and a second polyol having terminal hydroxyl groups and having a number-average molecular weight of from 3500 to 8000. A curing component having at least one primary amine group and having a number-average molecular weight of from 150 to 5000 is also included in the resin component. The spray foam system reacts a) the resin component and b) the isocyanate component in a volumetric ratio of a) to b) of from 1:1.2 to 1:5 and having an isocyanate index of from 15 to 70.

Abstract: A polyurethane foam and a resin composition that may be used to form the polyurethane foam is provided. The resin composition comprises a first ethylene diamine-based polyol having about 100% ethylene oxide capping present in an amount of from 0.5 to 8 parts by weight based on 100 parts by weight of the resin composition, a second polyol, and a physical blowing agent. The polyurethane foam comprises the reaction product of an isocyanate component and the resin composition. A method of forming the polyurethane foam on a substrate, comprising the steps of combining the isocyanate component, the first ethylene diamine-based polyol having about 100% ethylene oxide capping, the second polyol, and the physical blowing agent to form a polyurethane composition is also provided. The polyurethane composition is applied onto the substrate at an ambient temperature of 0° C. or lower to form the polyurethane foam.

Abstract: A polyurethane foam and a resin composition that may be used to form the polyurethane foam is provided. The resin composition comprises a first ethylene diamine-based polyol having about 100% ethylene oxide capping present in an amount of from 0.5 to 8 parts by weight based on 100 parts by weight of the resin composition, a second polyol, and a physical blowing agent. The polyurethane foam comprises the reaction product of an isocyanate component and the resin composition. A method of forming the polyurethane foam on a substrate, comprising the steps of combining the isocyanate component, the first ethylene diamine-based polyol having about 100% ethylene oxide capping, the second polyol, and the physical blowing agent to form a polyurethane composition is also provided. The polyurethane composition is applied onto the substrate at an ambient temperature of 0 C or lower to form the polyurethane foam.

Abstract: A resin composition is reacted with a polyisocyanate composition to form a polyurethane elastomeric adhesive. The polyurethane elastomeric adhesive adheres a first substrate to a second substrate to form a composite article. The resin composition comprises a first isocyanate-reactive component, a catalyst component, and a chelating agent. The first isocyanate-reactive component comprises an internal block copolymer formed from an initiator and an alkylene oxide and comprises terminal isocyanate-reactive groups. The chelating agent comprises a branched polymeric amine having a weight-average molecular weight of from about 800 to about 200,000 and is present in an amount of from about 1 to about 10 parts by weight based on 100 parts by weight of the resin composition.

Abstract: A resin composition for use in a froth spraying system for forming polyurethane foam is disclosed. The resin composition comprises a Mannich polyol, at least one additional polyol other than a Mannich polyol, and a physical blowing agent. The Mannich polyol has a viscosity of at least 4,000 centipoise at 25° C. The physical blowing agent is selected from the group of volatile non-halogenated C2 to C7 hydrocarbons, hydrofluorocarbons, hydrochlorocarbons, and mixtures thereof. The physical blowing agent is present in an amount of greater than 10 parts by weight based on 100 parts by weight of the resin composition. A method of forming the polyurethane foam is also provided comprising the steps of providing the resin composition and a polyisocyanate, mixing the resin composition with the polyisocyanate in a mixing chamber to form a mixture, and discharging the mixture from a dispensing gun as the resin composition reacts with the polyisocyanate to form the polyurethane foam.

Abstract: The subject invention provides an open-celled polyurethane foam formed from a polyurethane spray foam system that mixes a formulated resin component with an isocyanate component. The resultant open-celled polyurethane spray foam has a density of about ½ pound per cubic foot. The resin component includes water as a blowing agent, a first aliphatic, amine-initiated polyol having a number-average molecular weight of from 150 to 500 and having tetra-functionality, and a second polyol having terminal hydroxyl groups and having a number-average molecular weight of from 3500 to 8000. A curing component having at least one primary amine group and having a number-average molecular weight of from 150 to 5000 is also included in the resin component. The spray foam system reacts a) the resin component and b) the isocyanate component in a volumetric ratio of a) to b) of from 1:1.2 to 1:5 and having an isocyanate index of from 15 to 70.

Abstract: A formulated resin composition for producing a closed cell rigid polyisocyanate based foam is disclosed. The formulated resin composition for use in a polyurethane froth spraying system includes a hydrofluorocarbon blowing agent, a Mannich polyol, at least one additional polyol, a catalyst system, and a surfactant. The formulated resin composition has a hydroxyl content of at least 400 mg KOH/g and a polyurethane foam produced utilizing the formulated resin composition has a closed cell content of at least 90 percent. The formulated resin composition exhibits a zero ozone depleting potential and produces a polyurethane foam that cures faster than conventional sprayed polyurethane foams.

Abstract: A formulated resin composition for producing a closed cell rigid polyisocyanate based foam is disclosed. The formulated resin composition for use in a polyurethane froth spraying system includes a hydrofluorocarbon blowing agent, a Mannich polyol, at least one additional polyol, a catalyst system, and a surfactant. The formulated resin composition has a hydroxyl content of at least 400 mg KOH/g and a polyurethane foam produced utilizing the formulated resin composition has a closed cell content of at least 90 percent. The formulated resin composition exhibits a zero ozone depleting potential and produces a polyurethane foam that cures faster than conventional sprayed polyurethane foams.