US Patent No: 5,709,827
Number of patents in Portfolio can not be more than 2000
Methods for manufacturing articles having a starch-bound cellular matrix
Stats
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Jan 20, 1998
Issued date -
Dec 9, 1994
filing date -
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08/353,544
serial no -
In Force
status (Note)
Importance
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Abstract
Compositions, methods, and systems for manufacturing articles, particularly containers and packaging materials, having a starch-bound cellular matrix reinforced with substantially uniformly dispersed fibers. High strength articles that have adequate flexibility and toughness immediately or very shortly after being demolded without the need for subsequent conditioning are molded from compositions having a starch-based binder and fibers that are uniformly dispersed by means of a high yield stress fluid fraction within the starch-based composition. In a two-step mixing process, a preblended mixture is formed by gelating a portion of the starch-based binder or other thickening agent in water to form a liquid phase having high yield stress into which the fibers are substantially uniformly dispersed. The fibers preferably have an average length of at least about 2 mm and an aspect ratio of at least about 25:1. The remaining starch-based binder, water, and other desired admixtures, such as mold-release agents, inorganic fillers, rheology-modifying agents, plasticizers, integral coating or sealing materials, and dispersants, are added to the preblended mixture to form a moldable starch-based composition, which is molded between heated molds to produce form-stable articles having a desired shape and a selectively controlled foamed structural matrix. Such articles can replace articles presently made from conventional materials like paper, paperboard, polystyrene, plastic, or other organic-based materials and have especial utility in the mass-production of containers, particularly food and beverage containers.
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First Claim
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International Classification(s)
Cited Art Landscape
| Patent Info | (Count) | # Cites | Year |
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| * 4,377,440 Process for manufacturing of formed products | 72 | 1981 | |
| * 4,328,136 Process for the production of cellulose-silicate products | 81 | 1981 | |
| * 4,438,685 Wafer baking oven | 31 | 1982 | |
| * 4,508,595 Process for manufacturing of formed products | 132 | 1983 | |
| * 4,927,655 Heat processed food base | 46 | 1988 | |
| * 4,927,656 Method of producing edible vessel | 54 | 1988 | |
| * 4,957,558 Temporary solidifier for playing with sand | 46 | 1988 | |
| * 4,912,069 Use of pectin or pectin-like material in water-based ceramics | 65 | 1988 | |
| * 4,921,250 Frangible article | 62 | 1988 | |
| 5,106,880 Plastic foam aggregate matrix made from recycled paper and fiber products | 76 | 1990 | |
| 5,104,669 Microwaveable flour-starched based food product | 70 | 1991 | |
| 5,279,658 Composition suitable for forming into shaped articles, process for preparing the composition, process for preparing shaped articles using the composition, and shaped articles so-formed | 64 | 1991 | |
| 5,160,368 Biodegradable packages for fast food and method of preparing the same | 68 | 1992 | |
| 5,284,672 Method of producing an edible container | 50 | 1992 | |
| 5,378,418 Method of making articles of edible or easily biodegradable material | 25 | 1992 | |
| 5,298,273 Method of producing an edible container | 66 | 1992 | |
| 5,389,322 Method for manufacture of biodegradable disposable container | 30 | 1993 | |
| 5,500,089 Method for making disposable bowls and trays | 24 | 1994 | |
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| 5,264,080 Archival aperture card | 40 | 1992 | |
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| 5,427,614 Starch based formulations | 72 | 1993 | |
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| 5,314,754 Starch derived shaped articles | 81 | 1991 | |
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| 5,474,856 Photographic printing paper support | 20 | 1994 | |
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| 5,082,500 Sprayable composition | 89 | 1991 | |
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| 5,308,879 Process for preparing biodegradable resin foam | 68 | 1993 | |
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| 5,352,709 Algal plastics | 38 | 1993 | |
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| 5,300,333 Biodegradable insulated food container | 52 | 1993 | |
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| * 4,833,191 Process for preparing predispersed fiber compositions | 54 | 1987 | |
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| 5,512,090 Compositions for resilient biodegradable packaging material products | 45 | 1994 | |
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| * 4,595,623 Fiber-reinforced syntactic foam composites and method of forming same | 102 | 1984 | |
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| * 4,749,583 Method for making an edible container from corn | 26 | 1986 | |
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| 5,419,962 Bonded fibrous casing substrates and method of making same | 20 | 1994 | |
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| * 4,552,463 Method and apparatus for producing a colloidal mixture | 66 | 1984 | |
| * 4,944,595 Apparatus for producing cement building material | 72 | 1988 | |
| 5,108,677 Method of forming a sand base article using a decomposable binder and the article formed thereby | 74 | 1990 | |
| 5,317,119 Oven safe disposable food container | 58 | 1992 | |
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| 5,071,512 Paper making using hectorite and cationic starch | 76 | 1988 | |
| 5,178,730 Paper making | 72 | 1990 | |
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| 5,240,561 Acid-to-alkaline papermaking process | 84 | 1992 | |
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| 5,288,765 Expanded articles of biodegradable plastics materials and a method for their production | 92 | 1992 | |
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| 5,382,285 Biofoam | 24 | 1993 | |
| 5,360,828 Biofoam II | 33 | 1994 | |
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| 5,126,014 Retention and drainage aid for alkaline fine papermaking process | 77 | 1991 | |
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| 5,141,797 Ink jet paper having crosslinked binder | 139 | 1991 | |
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| 5,272,181 Biodegradable expanded foam material | 79 | 1992 | |
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| * 4,482,386 Method of conditioning a water swellable hydrocolloid | 45 | 1983 | |
| * 4,655,840 Hydrophilic polymer compositions for injection molding | 61 | 1985 | |
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| 5,395,438 Mineral wool-free acoustical tile composition | 55 | 1994 | |
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| * 4,329,177 Alkali metal silicate binder compositions | 58 | 1980 | |
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| 5,186,990 Biodegradable and water soluble packaging material | 88 | 1991 | |
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| 5,275,774 Starch treatment process | 82 | 1992 | |
| 5,428,150 Starch based material | 21 | 1993 | |
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| 5,360,586 Biodegradable cellulosic material and process for making such material | 73 | 1992 | |
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| 5,206,087 Biodecomposable or biodisintegrable moldable material | 66 | 1991 | |
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| * 4,957,754 Container for foods | 51 | 1987 | |
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| 5,476,621 Process for producing a foamed product or foam made of unmodified starch | 25 | 1994 | |
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| 5,290,350 Insulating shaped articles comprising inorganic fibrous matrices and xanthan gum/cationic starch binders | 75 | 1991 | |
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| * 4,445,970 High mineral composite fine paper | 80 | 1981 | |
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| 5,273,821 High strength ceramic fiber board | 57 | 1991 | |
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| 5,362,776 Recyclable cellulosic packaging material | 82 | 1993 | |
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| * 4,925,530 Loaded paper | 98 | 1988 | |
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| 5,266,368 Biodegradable packing material and method | 59 | 1992 | |
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| 5,501,771 Papermaking process and paper produced therefrom | 22 | 1994 | |
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| 5,095,054 Polymer compositions containing destructurized starch | 229 | 1990 | |
| 5,262,458 Biodegradable articles based on starch and process for producing them | 77 | 1990 | |
| 5,258,430 Polymer compositions for the production of articles of biodegradable plastics material and methods of their preparation | 92 | 1991 | |
| 5,462,980 Film-forming, starchy, polymeric composition and shaped articles, particularly films and sheets, which can be produced from the composition and have a good barrier effect, and a method of producing the articles | 56 | 1993 | |
| 5,512,378 Biodegradable starch based articles | 49 | 1995 | |
| 5,525,281 Method for preparing biodegradable films from plant-based raw materials | 40 | 1995 | |
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| 5,122,231 Cationic cross-linked starch for wet-end use in papermaking | 71 | 1990 | |
| 5,234,978 Composition containing a polymer of unsaturated hydrocarbon, A C1-4 alkyl or hydroxyalkylether of starch and a vinyl or acryl polymer as a compatibilizing agent | 22 | 1991 | |
| 5,296,526 A process for preparing a composition containing a polymer of unsaturated hydrocarbon, a C.sub.1-4 alkyl or hydroxyalkylether of starch and a vinyl or acrylic polymer as a compatibilizing agent | 24 | 1993 | |
| 5,360,844 Articles manufactured with a composition containing a polymer of unsaturated hydrocarbon, a C.sub.1-4 alkyl or hydroxyalkylether of starch and a vinyl or acryl polymer as a compatibilizing agent | 16 | 1994 | |
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| 5,256,711 Starch-containing biodegradable plastic and method of producing same | 72 | 1992 | |
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| * 4,892,590 Precipitated calcium carbonate-cationic starch binder as retention aid system for papermaking | 75 | 1988 | |
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| 5,288,318 Cellulose acetate and starch based biodegradable injection molded plastics compositions and methods of manufacture | 81 | 1993 | |
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| 4,979,992 Compact reinforced composite | 82 | 1988 | |
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| * 4,755,494 Use of pectin or pectin-like material in water-based ceramics | 66 | 1987 | |
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| * 4,378,271 Starch bound paper | 57 | 1980 | |
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| 5,415,827 Process for improving the mechanical properties of single-or multi-ply sheets | 32 | 1992 | |
| 5,280,055 Biodegradable mould material | 66 | 1992 | |
| 5,362,777 Thermoplastically processable starch and a method of making it | 97 | 1993 | |
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| 5,059,642 Degradable plastics from octenyl succinate starch | 31 | 1989 | |
| 5,320,669 Cereal grain-based biodegradable thermoplastic compositions | 89 | 1992 | |
| 5,397,834 Biodegradable thermoplastic composition of aldehyde starch and protein | 71 | 1993 | |
| 5,523,293 Soy protein-based thermoplastic composition for preparing molded articles | 84 | 1994 | |
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| 5,104,487 Papermaking using cationic starch and naturally anionic polysacchride gums | 61 | 1990 | |
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| 5,061,346 Papermaking using cationic starch and carboxymethyl cellulose or its additionally substituted derivatives | 62 | 1988 | |
| 5,494,509 Paper coating composition with increased thickener efficiency | 18 | 1993 | |
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| 5,156,718 Paper mats | 46 | 1991 | |
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| 5,367,320 Thermal head and system including the same | 14 | 1992 | |
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| * 4,673,438 Polymer composition for injection molding | 192 | 1985 | |
| 5,382,611 Destructurized starch and method for making same | 61 | 1993 | |
| 5,405,564 Method of forming shaped articles made from pre-processed starch | 61 | 1993 | |
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| 5,224,595 Package of cement mixing material | 65 | 1991 | |
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| 5,436,078 Starch mixture and process for the production thereof | 40 | 1992 | |
| 5,367,067 Water-resistant starch materials for the production of cast sheets and thermoplastic materials | 27 | 1993 | |
| 5,480,923 Thermoplastically processible composition of starch acrylate copolymers | 50 | 1994 | |
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| 5,221,435 Papermaking process | 82 | 1991 | |
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| 5,277,764 Process for the production of cellulose fibre containing products in sheet or web form | 65 | 1991 | |
| 5,447,604 Silica sols, a process for the production of silica sols and use of the sols | 56 | 1992 | |
| 5,496,440 Process for the manufacture of paper | 23 | 1994 | |
| 5,512,135 Process for the production of paper | 20 | 1994 | |
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| * 4,529,653 Flexible, asbestos-free gasket material | 62 | 1983 | |
| * 4,529,662 Asbestos-free sheet material for spiral-wound gaskets | 55 | 1983 | |
| * 4,529,663 Flexible, asbestos-free gasket material | 66 | 1984 | |
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| 5,372,877 Biodegradable cushioning product | 72 | 1992 | |
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| * 4,613,627 Process for the manufacture of shaped fibrous products and the resultant product | 155 | 1983 | |
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| 5,252,271 Biodegradable packaging foam and method of preparation | 88 | 1991 | |
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| * 4,454,268 Starch-based semipermeable films | 68 | 1983 | |
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| 5,393,333 Film-forming product for coating solid forms, process for its manufacture and products coated with this film-forming product | 49 | 1992 | |
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| 5,110,413 Intumescent sheet material | 61 | 1990 | |
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| * 4,953,453 Apparatus for operating locks of baking tongs for producing rottable, preferably edible wafers from wafer dough in a wafer baking oven or an automatic wafer baking machine | 24 | 1989 | |
| 5,048,403 Oven for roasting pieces of baked ware | 20 | 1990 | |
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| 5,032,414 Process for stacking individual one piece receptacles | 15 | 1990 | |
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| 5,405,437 All natural, starch-based, water resistant corrugating adhesive | 20 | 1993 | |
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| * 4,943,349 Process for preparing a sheet material with improved on-machine retention | 64 | 1987 | |
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| * 4,863,655 Biodegradable packaging material and the method of preparation thereof | 149 | 1988 | |
| 5,043,196 Biodegradable shaped products and the method of preparation thereof | 127 | 1989 | |
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| 5,317,037 Moldable composition of matter | 69 | 1991 | |
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| 5,124,161 Filled, microwave expandable snack food product and method and apparatus for its production | 36 | 1989 | |
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| 5,454,863 Water resistant high amylose corrugating adhesive with improved runnability | 25 | 1994 | |
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| * 4,588,443 Shaped article and composite material and method for producing same | 167 | 1981 | |
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| * 4,648,314 Wafer baking automatic machine | 20 | 1984 | |
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| 5,076,985 Method for forming ceiling tile | 51 | 1989 | |
| 5,194,206 Process for the manufacture of ceiling tile | 50 | 1989 | |
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| 5,208,267 Starch-based, biodegradable packing filler and method of preparing same | 84 | 1992 | |
| 5,185,382 Starch-based, biodegradable packing filler and method of preparing same | 78 | 1992 | |
| 5,248,702 Starch-based, biodegradable packing filler and method of preparing same | 65 | 1992 | |
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| 5,296,180 Ceramic process | 40 | 1992 | |
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| 5,360,473 Thermoformable compounds, their process of preparation and their use in order to obtain thermoformed articles | 19 | 1992 | |
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| * 4,753,710 Production of paper and paperboard | 175 | 1987 | |
| 5,501,774 Production of filled paper | 82 | 1994 | |
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| 5,487,813 Strong and soft creped tissue paper and process for making the same by use of biodegradable crepe facilitating compositions | 51 | 1994 | |
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| 5,346,541 Water dispersible formulations and materials and methods for influencing their water dispersibility | 87 | 1992 | |
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| 5,411,639 Process for enhancing sizing efficiency in filled papers | 46 | 1993 | |
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| * 4,562,218 Formable pulp compositions | 114 | 1983 | |
| 5,126,013 Mica and vermiculite paper and its preparation | 58 | 1991 | |
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| * 4,814,012 Method of manufacturing a bonded particulate article by reacting a hydrolyzed amylaceous product and a heterocyclic compound | 54 | 1987 | |
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| 5,269,845 Calcium aluminate composition and process for making same | 77 | 1992 | |
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| * 4,846,932 Water setting paper | 52 | 1986 | |
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| 5,278,194 Environmentall dispersible syntactic foam | 50 | 1993 | |
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| 5,432,000 Binder coated discontinuous fibers with adhered particulate materials | 191 | 1991 | |
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| * 4,952,278 High opacity paper containing expanded fiber and mineral pigment | 72 | 1989 | |
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| * 4,923,665 Method of improving characteristics of a moulded body | 79 | 1988 | |
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| * 4,669,603 Apparatus for singling filled wafer slices | 17 | 1985 | |
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| * 4,711,669 Method of manufacturing a bonded particulate article by reacting a hydrolyzed amylaceous product and a heterocyclic compound | 63 | 1985 | |
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| 5,264,030 Filler for degradable plastics and process for producing the same | 53 | 1992 | |
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| 5,324,351 Aqueous dispersions of zein and preparation thereof | 90 | 1992 | |
| 5,356,467 Controlled release coatings derived from aqueous dispersions of zein | 136 | 1993 | |
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| * 4,735,811 Tortilla and method of manufacture | 42 | 1985 | |
| * 4,781,932 Food shell and method of manufacture | 29 | 1987 | |
| * 4,950,490 Taco shell and method of manufacture | 26 | 1987 | |
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| * 4,462,835 Lightweight building material and method of producing the same | 83 | 1982 | |
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| 5,039,378 Two layer paper product for printing | 58 | 1987 | |
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| * 4,707,221 Sheets having improved stiffness from fiber, latex and coalescing agent | 31 | 1984 | |
| * 4,775,580 Porous random fiber composites and a method for preparing same | 53 | 1987 | |
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| 5,035,930 Biodegradable shaped products and the method of preparation thereof | 122 | 1990 | |
| 5,153,037 Biodegradable shaped products and the method of preparation thereof | 75 | 1992 | |
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| 5,456,933 Process for preparing retort-stable, extruded, shaped food pieces | 25 | 1993 | |
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| * 4,941,922 Starch-based corrugating adhesive containing fibers | 55 | 1989 | |
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| * 4,524,682 Apparatus for conditioning wafers | 18 | 1983 | |
| * 4,550,655 Apparatus for making wafer blocks | 15 | 1984 | |
| * 4,567,049 Process and apparatus for producing filled wafer blocks | 13 | 1984 | |
| * 4,602,590 Spreading head for a wafer sheet coating machine | 15 | 1984 | |
| * 4,624,855 Process for making rolled wafer cones | 24 | 1985 | |
| * 4,710,117 Apparatus for placing confectionery wafer pieces into molding depressions of casting molds | 15 | 1986 | |
| * 4,694,741 Apparatus for making rolled wafer cones | 21 | 1986 | |
| 5,103,717 Baking tongs for producing edible wafers from wafer dough in a wafer baking oven or an automatic wafer baking machine | 19 | 1988 | |
| 5,032,413 Process for testing individual one piece receptacles | 16 | 1990 | |
| 5,273,167 Apparatus for stacking individual one piece receptacles | 25 | 1991 | |
| 5,178,677 Coating apparatus for applying a coating composition to substantially flat baked pieces, particularly cookies or the like | 15 | 1991 | |
| 5,201,403 Interstage wafer block accumulation | 24 | 1992 | |
| 5,253,743 Wafer block magazine for a short-time intermediate storage of wafer blocks | 30 | 1992 | |
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| * 4,623,150 Environmentally acceptable frangible target compositions | 88 | 1985 | |
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| * 4,625,856 Device for deflecting filled wafer slices arranged in juxtaposed rows and advanced in the direction of said rows | 15 | 1985 | |
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| 5,108,807 Degradable multilayer thermoplastic articles | 73 | 1990 | |
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| * 4,889,428 Rotary mill | 65 | 1985 | |
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| 5,160,676 Fibrous material-containing composite | 51 | 1989 | |
| 5,132,155 Fibrous material-containing composite | 47 | 1991 | |
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| * 4,394,930 Absorbent foam products | 147 | 1981 | |
| * 4,410,571 Absorbent products, process and compositions for immobilization of particulate absorbents | 139 | 1981 | |
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| 5,162,126 Edible, reinforced package for foodstuff | 35 | 1990 | |
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| * 4,828,650 Heat treatment of paper products having milk and other additives | 49 | 1987 | |
| * 4,919,758 Heat treatment of paper products having starch additives | 66 | 1987 | |
| 5,039,003 Paperboard food carton and divider | 77 | 1988 | |
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| 5,569,514 Method of forming a sand base article using a decomposable binder and the article formed thereby | 14 | 1994 | |
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| 5,470,382 Biodegradable molded articles | 20 | 1993 | |
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| 5,393,804 Biodegradable compositions comprising starch and alkenol polymers | 42 | 1993 | |
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| * 4,545,854 Method for preparing a fibrous product containing cellulosic fibers and useful in particular, in the field of coverings in lieu of asbestos | 67 | 1983 | |
| * 4,710,422 Process for the treatment of a fibrous sheet obtained by papermaking process, with a view to improving its dimensional stability, and application of said process to the field of floor and wall-coverings | 53 | 1986 | |
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| * 4,789,244 Apparatus and method to produce foam, and foamed concrete | 76 | 1987 | |
| * 4,872,913 Apparatus and method to produce foam, and foamed concrete | 70 | 1988 | |
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| 5,506,277 Starch foams for absorbent articles | 57 | 1994 | |
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| 5,268,187 Method and apparatus for producing thin sheets of starch containing food material | 54 | 1992 | |
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| * 4,963,603 Composite fiberboard and process of manufacture | 87 | 1989 | |
| 5,134,179 Composite fiberboard and process of manufacture | 77 | 1990 | |
* Cited By Examiner