Porosity control with polyhedral oligomeric silsesquioxanes
AssigneeHybrid Plastics, Inc.
InventorsJoseph D. Lichtenhan, Joseph J. Schwab, Yi-Zhong An, Jack Sammons
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Abstract
The use of nanostructured chemicals based on polyhedral oligomeric silsesquioxanes (POSS) and polyhedral oligomeric silicates (POS) are used to control porosity in organic and inorganic media. The precisely defined nanoscopic dimensions of this class of chemicals enables porosity to be both created (increased) or reduced (decreased) as desired. The thermal and chemical stability of the POSS/POS nanostructures and the ability of these nano-building blocks to be selectively placed or rationally assembled with both inorganic and organic material mediums allow tailoring of porosity.
Claims9
A method for adjusting the permeability of a polymer comprising compounding a nanostructured material selected from the group consisting of POSS and POS into a polymer selected from the group consisting of acrylics, carbonates, epoxies, esters, silicones, styrenics, amides, nitriles, olefins, aromatic oxides, aromatic sulfides, and ionomers or rubbery polymers derived from hydrocarbons and silicones.
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Dependencies are inferred from the claim text.