Application US20190194426

PROCESS FOR PRODUCING ARTICLES FORMED WITH BIODEGRADABLE MATERIALS AND STRENGTH CHARACTERISTICS OF THE SAME
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US20190194426

1. A process comprising: (14) (5)

providing one or more polymeric materials;

providing one or more starch-based polymeric materials formed from a mixture of starches including a first starch and a second starch;

mixing the one or more polymeric materials and the one or more starch-based polymeric materials to produce a mixture of materials;

heating the mixture of materials; and

producing an article using the mixture of materials, the article having a strength value that is greater than: (i) a strength value of a first article including the polymeric material and a first starch-based polymeric material formed from a single starch that is the first starch, and (ii) a second strength value of a second article including the polymeric material and a second starch-based polymeric material formed from a single starch that is the second starch.

2. The process of claim 1, wherein producing the article using the mixture of materials includes extruding the mixture of materials to produce an extruded object. (1) (0)

6. The process of claim 1, wherein: (0) (2)

7. The process of claim 1, wherein the article includes a film having a thickness from about 0.8 mil to about 2 mils. (0)

8. The process of claim 1, wherein the polymeric material comprises a polyolefin-based polymeric material. (0)

9. The process of claim 1, wherein the polymeric material comprises at least one of polyethylene, polypropylene, polystyrene, high impact polystyrene, nylon, polymethylpentene, or polybutene. (1) (0)

11. The process of claim 1, wherein the heating is to a temperature in a range from about 120° C. to about 180° C. (0)

12. The process of claim 1, wherein the starch-based polymeric material is formed from the first starch, the second starch, and one or more plasticizers. (0)

13. The process of claim 1, wherein the mixture of the one or more polymeric materials and the one or more starch-based polymeric materials further comprises a compatibilizer. (1) (0)

15. The process of claim 1, wherein the first starch is derived from one of potato, corn, or tapioca; and the second starch is derived from a different one of potato, corn, or tapioca. (0)

16. The process of claim 1, wherein the starch-based polymeric material is present in an amount from about 20% by weight to about 30% by weight of the article and the polymeric material is a polyolefin-based polymeric material that is present in an amount from about 65% by weight to about 75% by weight of the article. (0)

17. The process of claim 1, wherein the first starch comprises at least about 50% by weight of the mixture of starches, and the second starch comprises at least 5% by weight of the mixture of starches. (0)

18. The process of claim 1, wherein the second starch comprises about 10% by weight of the mixture of starches. (0)

19. The process of claim 1, wherein: (0) (2)

20. The process of claim 1, wherein the article has a tensile elongation at break value in a machine direction that is greater than a tensile elongation at break value in the machine direction of a comparative article formed from the polymeric material alone that is free of starch-based polymeric materials. (0)

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Application US20190194426

PROCESS FOR PRODUCING ARTICLES FORMED WITH BIODEGRADABLE MATERIALS AND STRENGTH CHARACTERISTICS OF THE SAME

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