Expandable starch-based beads and method of manufacturing molded articles therefrom
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United States of America Patent
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Issued Date -
Jan 25, 2007
app pub date -
Jul 19, 2005
filing date -
Jul 19, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An expandable starch-based composition includes a starch, a volatile blowing agent, a non-volatile plasticizer, nucleating agent, and a water-resistant polymer. The expandable starch-based composition can be characterized by having a plasticized starch capable of expanding when rapidly heated to above the boiling point of the volatile blowing agent and the softening point of the plasticized starch. The composition can be used in a method of manufacturing an expandable starch-based bead, wherein the method includes: introducing the composition into an extruder; heating and mixing the composition in order to yield a thermoplastic melt; extruding the thermoplastic melt through a die opening to yield an extruded strand; cooling the extruded strand; and cutting the cooled strand in to beads. The beads can be used in a method of manufacturing a biodegradable article, the method includes: providing a plurality of expandable starch-based beads; placing the beads into a mold cavity; rapidly heating the beads to a temperature greater than the boiling point of the volatile blowing agent; causing at least a portion of the expanded beads to adhere together to form an intermediate molded body; and cooling the intermediate molded body to yield the article of manufacture.
First Claim
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
E KHASHOGGI INDUSTRIES LLC | 800 MIRAMONTE DRIVE SANTA BARBARA CA 93109 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Glenn, Gregory M | American Canyon, CA | 68 | 1075 |
Hodson, Simon K | Santa Barbara, CA | 132 | 7703 |
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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