Microcellular foams containing an infrared attenuating agent and a method of using
AssigneeThe Dow Chemical Company
InventorsKyung W. Suh, Michio Yamada, Creston D. Shmidt, Daniel D. Imeokparia
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Abstract
Disclosed is an evacuated and unevacuated microcellular foam containing an infrared attenuating agent (IAA). The evacuated foam has an average cell size of about 70 micrometers or less. The unevacuated foam has an average cell size of 1.0 micrometers or less. The IAA provide a greater proportional reduction in foam thermal conductivity in these foams than in foams of larger cell size. Further disclosed is a method of using the foams.
Claims25
An evacuated, open-cell microcellular foam, the foam having an average cell size of about 70 micrometers or less, the foam having an open cell content of about 70 percent or more, the foam having an absolute pressure of about 10 torr or less, the foam having an infrared attenuating agent in a quantity sufficient to reduce the thermal conductivity of the foam relative to a corresponding foam without the infrared attenuating agent.
Dependencies are inferred from the claim text.