Printing medium comprising aerogel materials
AssigneeBrown University Research Foundation
InventorsWilliam M. Risen, Jr., Shuang Ji, Xiangjun Hu, Ruiyun Zhang
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Abstract
New aerogels are disclosed which comprise silica, at least one organic polymer having polar functional groups, and at least one metal ion. Also disclosed are methods for making such aerogels. The present invention further concerns printable objects comprising these aerogels, specifically when the print media are imaged by the absorption of liquid and the spatial localization of pigments or dyes.
Claims11
A medium for printing comprising an aerogel comprising silica, at least one organic polymer with a polar functional group, and at least one metal-ion-containing species, wherein the polar functional group of the organic polymer is selected from the group consisting of amine, carbonyl, acylamine, protonated amine, hydroxyl, and carboxyl groups.
A composition adapted for use as a coating for paper, the composition comprising:
- silica;
- and
- chitosan, the composition further comprising a metal-ion containing species.
A composition adapted for use as a coating for paper, the composition comprising an aerogel comprising:
- silica;
- and
- chitosan, wherein the chitosan has an average molecular weight of from about 35,000 to about 3,000,000.
Dependencies are inferred from the claim text.