FLEXIBLE POLYURETHANE FOAM AND FORMULATION THEREOF
A flexible polyurethane foam comprises up to 10 wt % of a fumed silica having a surface area from 50 to 150 m2/g, wherein the fumed silica has C1-C3 alkylsilyl groups at its surface, the flexible polyurethane foam exhibiting has a resilience of at least 40%, for example, from 40% to 70%, a dry compr...
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| creator | STEP, Eugene N SENDIJAREVIC, Ibrahim SENDIJAREVIC, Vahid FOSTER, John K |
| description | A flexible polyurethane foam comprises up to 10 wt % of a fumed silica having a surface area from 50 to 150 m2/g, wherein the fumed silica has C1-C3 alkylsilyl groups at its surface, the flexible polyurethane foam exhibiting has a resilience of at least 40%, for example, from 40% to 70%, a dry compression set no greater than 15%, for example, from 3% to 15%, or both. Alternatively in addition, the flexible polyurethane foam may have a compression force deflection at 50% as measured by ASTM D3574 that is at least 30%, for example, at least 50%, at least 70%, or from 30% to 155%, greater than a flexible polyurethane foam having the same composition but with polyol replacing the silica. |
| format | Patent |
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| subjects | CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS |
| title | FLEXIBLE POLYURETHANE FOAM AND FORMULATION THEREOF |
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