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US 2013/0171393 A1Published application
Foam and methods of making the same
AssigneeSealed Air Corporation (US)
InventorsCharles Kannankeril, Joseph Lacopo
Life of this patent
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Abstract
Foam products are provided including starch in combination with a small amount of a superabsorbent polymer. Also provided are expandable compositions (e.g., foam precursors) and methods of making a foam product in which a small quantity of a superabsorbent polymer is present.
Claims80
A foam product, comprising:
- (a) starch;
- and (b) a superabsorbent polymer in an amount ranging from about 0.001 to about 10% by weight of the foam product.
An expandable composition, comprising:
- (a) starch;
- and (b) a superabsorbent polymer in an amount ranging from about 0.001 to about 10% by weight of the expandable composition;
- and (c) an expanding agent.
A process for producing a foam product, comprising the steps of:
- (a) mixing starch, expanding agent, and superabsorbent polymer to create an expandable composition and (b) expanding the expandable composition to create the foam product;
- wherein the mixing step occurs for a given total amount of time.
Dependencies are inferred from the claim text.