Dow Global Technolgoies LLC

Meagan Broadway

Qinghao Meng

Christopher Thiede

Morgan A Springs

William J Harris

Felipe A Donate

Kaoru Aou

Daniel Lawrence Dermody

Paul A Cookson

Helge Braun

Adam L Grzesiak

Lucie Porcelli

Van Delk

David J Honkomp

Anja Arlt

William L Ritter

Yin Tang

Van M Delk, Jr

Chrisopher P Thiede

Embodiments of the present disclosure are directed towards formulated polyol compositions that include a first polyether polyol having an average hydroxyl number from 112 to 280 mg KOH/g, a second polyether polyol having an average hydroxyl number from 18.5 to 51 mg KOH/g, a third polyether polyol having an average hydroxyl number from 20 to 70 mg KOH/g, and at least one of: fourth polyether polyol having an average hydroxyl number from 112 to 280 mg KOH/g; and a methoxypolyethylene glycol having an average hydroxyl number from 56 to 190 mg KOH/g.

Formulated polyol compositions

Flexible polyurethane foams having high airflows and excellent viscoelastic properties are made using a polyol mixture that includes a certain liquid polyester, certain ethylene oxide polyols and certain propylene oxide polyols, and a polymeric MDI. When used in applications such as bedding, the high airflows contribute to an improved sense of comfort by the user.

Viscoelastic polyurethane foams

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 25 #C and having a glass transition temperature of at most 20 #C. 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.

Flexible polyurethane foam having prolonged recovery time

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Freeport, TX, United States of America

Meagan Broadway