Eastman Kodak Company
IMPERMEABLE POLYMERIC POROUS PARTICLES
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Abstract:
Impermeable porous particles include a porous polymer core, and a polymeric shell having a shell thickness of at least 5 nm. The impermeable porous particles have a median diameter of between 3 .mu.m and 200 .mu.m, and any pores in the polymeric shell have a diameter of less than 2 nm.
Status:
Application
Type:
Utility
Filling date:
8 Dec 2021
Issue date:
23 Jun 2022