US 2015/0087736 A1 · POLYURETHANE FOAM AND ASSOCIATED METHOD AND ARTICLE

Abstract

A polyurethane foam is prepared from a reaction mixture that includes an aromatic isocyanate compound, and blowing agent, and a polyol that itself includes a poly(phenylene ether) having a number average molecular weight of 600 to 2000 atomic mass units and an average of 1.5 to 3 hydroxyl groups per molecule. Use of the poly(phenylene ether) is associated with faster formation of polyurethane, and increased compression force deflection. The polyurethane is useful for forming articles including bedding, furniture, automotive interiors, mass transportation interiors (seating, padding, instrument panels, door panels, steering wheels, armrests, and headrests), flooring underlay (foam, rebond binder), packaging, textiles, lining and gasketing applications, acoustic dampening materials, and weather stripping.

Claims17

Dependent claims

A polyurethane foam comprising the product of a reaction mixture comprising:

a polyol comprising a poly(phenylene ether) having a number average molecular weight of 600 to 2000 atomic mass units and an average of 1.5 to 3 hydroxyl groups per molecule;
an aromatic isocyanate compound having an average of at least 2 isocyanate groups per molecule;
and
a blowing agent;
wherein the reaction mixture is characterized by an isocyanate index of 65 to 95;
and
wherein the polyurethane foam has a density of 0.01 to 0.16 gram/centimeter3 measured at 23° C. according to ASTM D 3574-08, Test A.

4 more elements

An article comprising a polyurethane foam, the polyurethane foam comprising the product of a reaction mixture comprising:

a polyol comprising a poly(phenylene ether) having a number average molecular weight of 600 to 2000 atomic mass units and an average of 1.5 to 3 hydroxyl groups per molecule;
an aromatic isocyanate compound having an average of at least 2 isocyanate groups per molecule;
and
a blowing agent;
wherein the reaction mixture is characterized by an isocyanate index of 65 to 95;
and
wherein the polyurethane foam has a density of 0.01 to 0.16 gram/centimeter3 measured at 23° C. according to ASTM D 3574-08, Test A.

4 more elements

A method of forming a polyurethane foam, the method comprising:

reacting a polyol with an aromatic isocyanate compound in the presence of a blowing agent to form a polyurethane foam;
wherein the polyol comprises a poly(phenylene ether) having a number average molecular weight of 600 to 2000 atomic mass units and an average of 1.5 to 3 hydroxyl groups per molecule;
wherein the aromatic isocyanate compound has an average of at least 2 isocyanate groups per molecule;
wherein the reacting is characterized by an isocyanate index of 65 to 95;
and
wherein the polyurethane foam has a density of 0.01 to 0.16 gram/centimeter3 measured at 23° C. according to ASTM D 3574-08, Test A.

3 more elements

Dependencies are inferred from the claim text.

Polyurethane foam and associated method and article

Life of this patent

Polyurethane foam and associated method and article

Life of this patent

Abstract

Claims17