Supermicrocellular foamed materials

Chemical apparatus and process disinfecting – deodorizing – preser – Chemical reactor – Organic polymerization

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422137, 422138, 264 50, 264 53, 264DIG5, 264DIG13, 426446, 425 4C, C08F 200, B28B 150, A21D 1300, B29D 100

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active

053343565

ABSTRACT:
A supermicrocellular foamed material and a method for producing such material, the material to be foamed such as a polymerplastic material, having a supercritical fluid, such as carbon dioxide in its supercritical state, introduced into the material to form a foamed fluid/material system having a plurality of cells distributed substantially throughout the material. Cell densities lying in a range from about 10.sup.9 to about 10.sup.15 per cubic centimeter of the material can be achieved with the average cell sizes being at least less than 2.0 microns and preferably in a range from about 0.1 micron to about 1.0 micron.

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LeMay, J. D. et al., "Low-Density Microcellular Materials", MRS Bulletin, Dec. 1990, pp. 19-45.

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