Patent · US Active

Viscoelastic foam

US11401366B2 · kind B2 · utility

0Cited by

2References

14Claims

0Family size

Assignee

DOW GLOBAL TECHNOLOGIES LLC · US

Inventors

Qinghao Meng · Angleton, US
Christopher Thiede · Lake Jackson, US
Kaoru Aou · Lake Jackson, US
Van M. Delk · Freeport, US
Jillian Charon · Houston, US
Doug Todd · Powder Springs, US
Scott Snyder · Rialto, US

Key dates

Filing date	Mar 8, 2019
Grant date	Aug 2, 2022
Priority date	—
Expiry date	Mar 8, 2039

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08K2201/006
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Recovery time 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 10,000 centipoise at 25° C., having a glass transition temperature of at most 15° C. and being inert to other components of the foam formulation.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.