Biodegradable formed article

Details Biodegradable formed article Biodegradable formed article

1998-09-10

2000-04-25

Nutter, Nathan M.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

524 47, 524 50, 524 51, 524 55, 264109, 2641761, 264217, 264638, 264639, C08L 6300, C08L 6302, C08L 6702, C08L 7100

Patent

active

060545100

ABSTRACT:
Compositions of the invention include a hydroxy-functional polyester and a natural polymer. Articles can be made from such a composition so as to have sufficiently strong tensile strengths as to form disposable utensils or to have sufficient stretchability so as to form thin wrap films. However, the compositions are more environmentally friendly than commodity plastics such as polyethylene or polystyrene. Granular starches derived from a grain, a root, a legume, or mixtures thereof, are particularly preferred as the natural polymers for inclusion in the compositions.

REFERENCES:
patent: 3149085 (1964-09-01), Ball et al.
patent: 3850862 (1974-11-01), Clendinning et al.
patent: 3901838 (1975-08-01), Clendinning et al.
patent: 3921333 (1975-11-01), Clendinning et al.
patent: 3923729 (1975-12-01), Clendinning et al.
patent: 3931068 (1976-01-01), Clendinning et al.
patent: 3932319 (1976-01-01), Clendinning et al.
patent: 3949145 (1976-04-01), Otey et al.
patent: 4016117 (1977-04-01), Griffin
patent: 4344857 (1982-08-01), Shasha et al.
patent: 4483950 (1984-11-01), Fanta et al.
patent: 4863655 (1989-09-01), Lacourse et al.
patent: 4873270 (1989-10-01), Aime et al.
patent: 4911952 (1990-03-01), Doane et al.
patent: 4983651 (1991-01-01), Griffin
patent: 5095054 (1992-03-01), Lay et al.
patent: 5171820 (1992-12-01), Mang et al.
patent: 5183690 (1993-02-01), Carr et al.
patent: 5185382 (1993-02-01), Neumann et al.
patent: 5186990 (1993-02-01), Starcevich
patent: 5212219 (1993-05-01), Griffin
patent: 5219646 (1993-06-01), Gallagher et al.
patent: 5234977 (1993-08-01), Bastioli et al.
patent: 5252271 (1993-10-01), Jeffs
patent: 5256711 (1993-10-01), Tokiwa et al.
patent: 5272181 (1993-12-01), Boehmer et al.
patent: 5292782 (1994-03-01), Bastioli et al.
patent: 5321064 (1994-06-01), Vaidya et al.
patent: 5346936 (1994-09-01), Buehler et al.
patent: 5360830 (1994-11-01), Bastioli et al.
patent: 5384187 (1995-01-01), Uemura et al.
patent: 5391423 (1995-02-01), Wnuk et al.
patent: 5412005 (1995-05-01), Bastioli et al.
patent: 5422387 (1995-06-01), Toms et al.
patent: 5439953 (1995-08-01), Ritter et al.
patent: 5446078 (1995-08-01), Vidya et al.
patent: 5459258 (1995-10-01), Merrill et al.
patent: 5462983 (1995-10-01), Bloembergen et al.
patent: 5496910 (1996-03-01), Mang et al.
patent: 5510401 (1996-04-01), Dehennau et al.
patent: 5574076 (1996-11-01), Sharak et al.
patent: 5583187 (1996-12-01), Sharak et al.
patent: 5665786 (1997-09-01), Xu et al.
Koenig et al., "Biodegradable Polymer/Starch Blends, Composites, and Coatings," PMSE, 67, pp. 290-291 (1992).
Kotnis et al., "Processing and Mechanical Properties of Biodegradable Poly(hydroxybutyrate-co-valerate)-Starch Compositions," J. Environ. Polymer Degradation, 3:2, pp. 97-105 (1995).
Lim et al., "Effect of Starch Granule Size on Physical Properties of Starch-Filled Polyethylene FIlm," Biotechnol. Prog., 8, pp. 51-57 (1992).
Mang et al., "Synthesis and Properties of Thermoplastic Hydroxy-Functional Polyesters Derived from Diacids and Diglycidyl Ethers," Polymer Preprints, pp. 180-181 (1995).
Ramsay et al., "Biodegradability and Mechanical Properties of Poly(.beta.-Hydroxybutyrate-Co-.beta.-Hydroxyvalerate)-Starch Blends," Applied and Environmental Microbiology, 59:4, pp. 1242-1246 (Apr. 1993).
Shogren et al., "Development of Starch Based Plastics--A Reexaminiation of Selected Polymer Systems in Historical Perspective," Starch/Starke, 45:8, pp. 276-280 (1993).
Tatarka, Paul D., "Can Agricultural Materials Compete with Expanded Polystyrene in the Loose-Fill Market?," The Plastics Challenge--A Revolution in Education, Proceedings of the SPE 53.sup.rd Annual Technical Conference and Exhibits, pp. 2225-2231 (1995).
Union Carbide's "Material Safety Data Sheet" containing information on Additives, e.g. nomeclature and structure (Oct. 31, 1994).
Shogren, R.L., "Poly(ethylene oxide)-Coated Granular Starch-Poly(hydroxybutyrate-co-hydroxyvalerate) Composite Materials," J. Environ. Polymer Degradation, 3:2, pp. 75-80 (1995).
Tiefenbacher, Karl F., "Starch-Based Foamed Materials--Use and Degradation Properties," J.M.S.--Pure Appl. Chem., A30(9&10), pp. 727-731 (1993).
Westhoff et al., "Starch-Polyvinyl Alcohol Films--Effects of Various Plasticizers," Starch-Starke, 31, pp. 163-165 (1979).
Lawton & Fanta, "Glycerol-Plasticized Films Prepared from Starch--Poly(vinyl alcohol) Mixtures: Effect of Poly(ethylene-co-acrylic Acid)," Carbohydrate Polymers, 23, pp. 275-280 (1994).
McCarthy et al., "Recent Advances in Biodegradable Polymers and Blends," Corn Utilization Conference VI, St. Louis, Missouri, Jun. 4-6, 1996.
Shogren et al., "Biodegradable Starch-Polyester Composites," Corn Utilization Conference VI, St. Louis, Missouri, Jun. 4-6, 1996.
Abstract of JP 05320326-A, Dec. 3, 1993, as found in Database WPI, Week 9402, Mar. 16, 1994, AN 94-012391/02.
Fritz et al., "Der Einsatz von Starke bei der Modifizierung synthetischer Kunststoffe," Starch/Starke, 45(9), pp. 314-322 (1993).
Swanson et al., "Skin and Layer Formation in Films Prepared from Carbohydrates, Poly(ethylene-co-acrylic acid), and Polyethylene," J. of Applied Polymer Science, 49(10), pp. 1683-1693 (Sep. 10, 1993).

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