Flexible polyurethane foam having prolonged recovery time

Recovery times and/or airflow of flexible polyurethane foam is increased by including certain tackifiers in the foam formulation. The tackifiers are characterized in being incompatible with polyol or polyol mixture used to make the foam, having a viscosity of at least 5,000 centipoise at 25⁰C and ha...

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Main Authors TANG, Yin, BRAUN, Helge, DONATE, Felipe A, THIEDE, Chrisopher P, DELK JR., Van M, AOU, Kaoru, MENG, Qinghao, BROADWAY, Meagan, HARRIS, William J, DERMODY, Daniel L
Format Patent
LanguageEnglish
Published 25.01.2024
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
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Summary:Recovery times and/or airflow of flexible polyurethane foam is increased by including certain tackifiers in the foam formulation. The tackifiers are characterized in being incompatible with polyol or polyol mixture used to make the foam, having a viscosity of at least 5,000 centipoise at 25⁰C and having a glass transition temperature of at most 20⁰C. The tackifier is pre-blended with certain monols to form a lower-viscosity blend that is combined with one or more other polyols and a polyisocyanate to form a reaction mixture for producing a polyurethane foam.
Bibliography:Application Number: AU20190236120