Metal-doped organic foam

Details Metal-doped organic foam Metal-doped organic foam

1980-10-16

1982-04-20

Foelak, Morton

Compositions: coating or plastic

Coating or plastic compositions

Pore forming

106194, 521 61, 521 63, 521 92, 521125, 521149, C08L 112, C08L 108

Patent

active

043257372

ABSTRACT:
Organic foams having a low density and very small cell size and method for producing same in either a metal-loaded or unloaded (nonmetal loaded) form are described. Metal-doped foams are produced by soaking a polymer gel in an aqueous solution of desired metal salt, soaking the gel successively in a solvent series of decreasing polarity to remove water from the gel and replace it with a solvent of lower polarity with each successive solvent in the series being miscible with the solvents on each side and being saturated with the desired metal salt, and removing the last of the solvents from the gel to produce the desired metal-doped foam having desired density cell size, and metal loading. The unloaded or metal-doped foams can be utilized in a variety of applications requiring low density, small cell size foam. For example, rubidium-doped foam made in accordance with the invention has utility in special applications, such as in x-ray lasers.

REFERENCES:
patent: 2746958 (1956-05-01), Pyle
patent: 3133137 (1964-05-01), Loeb et al.
patent: 3574803 (1971-04-01), Allen et al.
patent: 4012265 (1977-03-01), Rinde
patent: 4261937 (1981-04-01), Rinde

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