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US 11,285,650 B2Granted
Pellet based tooling and process for biodegradable component
OwnerJoseph Wycechinventor
Life of this patent
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Abstract
An example starch-based material for forming a biodegradable component includes a mixture of a starch and an expansion additive. The starch has an amylose content of less than about 70% by weight. The expansion additive enhances the expansion and physical properties of the starch. A method of preparing a starch-based material is also disclosed and an alternate starch-based material for forming a biodegradable component is also disclosed.
Claims8
A starch-based material for forming a biodegradable component, comprising:
- a plurality of biodegradable pellets adhered to each other by a binding agent and each biodegradable pellet obtained from a mixture of:
- a starch having an amylose content of between about 20% and about 30% by weight, and
- 0.5 to 10% by weight of an additive, wherein the additive includes 0.5 to 4% by weight of an expansion additive enhancing the physical and expansion properties of the starch, wherein the expansion additive includes heat-expandable thermoplastic microspheres, and a second additive including peat;
- and
- 15 to 30% by weight of water, and wherein the weight percentages are based on the weight of the starch.
2 more elements
A method of preparing a starch-based material for biodegradable component, the method comprising:
- mixing a starch-based material with 15 to 30% by weight of water to form a biodegradable material, wherein the starch-based material includes:
- a starch having an amylose content of between about 20% and about 30% by weight, and
- 0.5 to 10% by weight of an additive, wherein the additive includes 0.5 to 4% by weight of an expansion additive enhancing the physical and expansion properties of the starch, wherein the expansion additive includes heat-expandable thermoplastic microspheres, and a second additive including peat;
- extruding the biodegradable material through a die, dividing the extruded biodegradable material to form a plurality of biodegradable pellets;
- and
- applying a binding agent onto the plurality of biodegradable pellets wherein the plurality of biodegradable pellets are adhered to each other by the binding agent,
- wherein the weight percentages are based on the weight of the starch.
4 more elements
Dependencies are inferred from the claim text.