Homogeneous, isotropic, three-dimensional microporous...

Details Homogeneous, isotropic, three-dimensional microporous... Homogeneous, isotropic, three-dimensional microporous...

C - Chemistry, Metallurgy

08

J

18/24

C08J 9/28 (2006.01)

Patent

CA 1120671

ABSTRACT OF THE DISCLOSURE A method of preparing a relatively homogeneous, iso- tropic, three-dimensional microporous polymer structure com- prising heating a mixture of a synthetic thermoplastic polymer selected from the group consisting of olefinic polymers, con- densation polymers, oxidation polymers, and blends thereof, and a compatible liquid to a temperature and for a time suffi- cient to form a homogeneous solution. me solution is allowed to assume a desired shape, it is cooled in the desired shape at a rate and to a temperature sufficient to initiate thermo- dynamic, non-equilibrium liquid-liquid phase separation, cooling is continued to form a solid and at least a substantial portion of the liquid is removed from the resulting solid to form the microporous polymer structure.

371870

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