Melt processable starch compositions
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United States of America Patent
Stats
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Apr 28, 2009
Grant Date -
Jul 8, 2004
app pub date -
Dec 17, 2003
filing date -
Mar 8, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The present invention relates to a starch composition comprising starch, a polymer that is substantially compatible with starch and has a weight-average molecular weight of at least 500,000 such that the polymer forms effective entanglements or associations with neighboring starch molecules, and preferably at least one additive to improve melt flow and melt processability. The additive may be a hydroxyl plasticizer, a hydroxyl-free plasticizer, a diluent, or mixtures thereof. The composition is melt processable on conventional thermoplastic equipment. The composition is especially suitable for uniaxial and biaxial extensional processes to make fibers, films, foams and like products.
First Claim
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International Classification(s)
- C08J:WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTE....
- C08G:MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN B....
- A23L:FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT....
- A23K:FODDER
- C08B:POLYSACCHARIDES; DERIVATIVES THEREOF
- D21H:PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED....
- A23F:COFFEE; TEA; THEIR SUBSTITUTES; MANUFACTURE, PREPA....
- A21D:TREATMENT, e.g. PRESERVATION, OF FLOUR OR DOUGH FO....
- C13F:PREPARATION OR PROCESSING OF RAW SUGAR, SUGAR, OR ....
- C08L:COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- A23B:PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRU....
- C08K:USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUB....
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