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US 11,590,253 B2Granted
Composite materials
AssigneeThe Penn State Research Foundation
InventorsJeffrey Catchmark, Yuzhi Deng
Life of this patent
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Abstract
A composite material is formed by combining an expandable polymer having a charge with another polymer having an opposite charge to produce. In particular, the composite material can be prepared by combining the polymers with a medium such as and water, and expanding the mixture using a treatment that expands the mixture to produce, for example, insoluble porous foam-like composites.
Claims3
A process of preparing a composite material, the process comprising, in a single step:
- (a) mixing (i) at least one non-gelatinized starch having a charge, (ii) at least one polysaccharide of opposite
- charge, and (iii) at least one polar solvent to form a mixture, wherein at least one of said at least one non-gelatinized
- starch and said at least one polysaccharide is capable of expanding;
- and
- (b) expanding the mixture while removing said at least one polar solvent while gelatinizing said at least one
- non-gelatinized starch to form a composite material including gelatinized starch and
- said at least one polysaccharide, wherein said composite material is insoluble in water.
4 more elements
Dependencies are inferred from the claim text.