High heat resistant polymer compositions having poly(lactic acid)
View Patent ↗High heat resistant polymer compositions having poly(lactic acid) and methods of making the high heat resistant polymer compositions are provided. In a general embodiment, the present disclosure provides a polymer composition including a poly(lactic acid), an aliphatic polyester, and an organically coated calcium carbonate.
1. A polymer composition comprising:
a poly(lactic acid);
an aliphatic polyester; and
organically coated calcium carbonate,
wherein the organically coated calcium carbonate ranges from about 40% to about 75% by weight of the polymer composition.
2. The polymer composition of claim 1 , wherein the poly(lactic acid) ranges from about 10% to about 45% by weight.
3. The polymer composition of claim 1 , wherein the aliphatic polyester ranges from about 5% to about 65% by weight.
4. The polymer composition of claim 1 , wherein the aliphatic polyester is selected from the group consisting of co-polyester polymer with adipic acid, co-polyester polymer with succinic acid, poly(epsilon caprolactone) and combinations thereof.
5. The polymer composition of claim 1 , wherein the organically coated calcium carbonate ranges from about 45% to about 65% by weight.
6. The polymer composition of claim 1 further comprising nanoparticles of a mineral material.
7. The polymer composition of claim 6 , wherein the nanoparticles comprise a size ranging between about 20 and about 500 nanometers.
8. The polymer composition of claim 6 , wherein the nanoparticles have a degree of purity of at least 99.9%.
9. The polymer composition of claim 1 further comprising at least one component selected from the group consisting of plasticizers, flow promoters, polymer processing aids, slip agents, viscosity modifiers, chain extenders, nanoparticles, spherical glass beads, organic fillers, inorganic fillers, fibers, colorants, anti-microbial agents and combinations thereof.
10. A method of producing an article comprising a high heat resistant polymer composition, the method comprising:
combining a poly(lactic acid), an aliphatic polyester, and an organically coated calcium carbonate to produce a polymer blend, wherein the organically coated calcium carbonate ranges from about 40% to about 75% by weight of the polymer blend;
extruding the polymer blend to form an extrudate; and
forming the extrudate into an article.
11. The method of claim 10 , wherein the article is selected from the group consisting of polymer foams, toys, computer casing, DVDs, toiletries, combs, consumer products, cellular phone casings, bags, foam material products, packaging, automobile parts, cookware and combinations thereof.
12. The method of claim 10 , wherein the forming is done by a process selected from the group consisting of injection molding, thermoforming, film blowing, stretch blow molding, extrusion blow molding, extrusion coatings, profile extrusion, film extrusion, cast films, cast products and combinations thereof.
13. The method of claim 10 , wherein the poly(lactic acid) ranges from about 10% to about 45% by weight.
14. The method of claim 10 , wherein the aliphatic polyester ranges from about 5% to about 65% by weight.
15. The method of claim 10 , wherein the aliphatic polyester is selected from the group consisting of co-polyester polymer with adipic acid, co-polyester polymer with succinic acid, poly(epsilon caprolactone) and combinations thereof.
16. The method of claim 10 , wherein the polymer blend further comprises nanoparticles of a mineral material.
17. The method of claim 10 , wherein the polymer blend further comprises at least one component selected from the group consisting of plasticizers, flow promoters, polymer processing aids, slip agents, viscosity modifiers, chain extenders, nanoparticles, spherical glass beads, organic fillers, inorganic fillers, fibers, colorants, anti-microbial agents and combinations thereof.
18. A method of making a polymer film, the method comprising:
combining a poly(lactic acid), an aliphatic polyester, and an organically coated calcium carbonate to produce a polymer blend, wherein the organically coated calcium carbonate ranges from about 40% to about 75% by weight of the polymer blend; and
forming a polymer film from the polymer blend.
19. The method of claim 18 , wherein the poly(lactic acid) ranges from about 10% to about 45% by weight.
20. The method of claim 18 , wherein the aliphatic polyester from about 5% to about 65% by weight.
21. The method of claim 18 , wherein the aliphatic polyester is selected from the group consisting of co-polyester polymer with adipic acid, co-polyester polymer with succinic acid, poly(epsilon caprolactone) and combinations thereof.
22. The method of claim 18 , wherein the organically coated calcium carbonate ranges from about 45% to about 65% by weight.
23. The method of claim 18 , wherein the polymer blend further comprises nanoparticles of a mineral material.
24. The method of claim 18 , wherein the polymer blend further comprises at least one component selected from the group consisting of plasticizers, flow promoters, polymer processing aids, slip agents, viscosity modifiers, chain extenders, nanoparticles, spherical glass beads, organic fillers, inorganic fillers, fibers, colorants, anti-microbial agents and combinations thereof.
25. A biodegradable article comprising:
a polymer composition comprising a poly(lactic acid), an aliphatic polyester, and an organically coated calcium carbonate
wherein the organically coated calcium carbonate ranges from about 40% to about 75% by weight of the polymer composition.
26. The biodegradable article of claim 25 , wherein the poly(lactic acid) ranges from about 10% to about 45% by weight.
27. The biodegradable article of claim 25 , wherein the aliphatic polyester ranges from about 5% to about 65% by weight.
28. The biodegradable article of claim 25 , wherein the aliphatic polyester is selected from the group consisting of co-polyester polymer with adipic acid, co-polyester polymer with succinic acid, poly(epsilon caprolactone) and combinations thereof.
29. The biodegradable article of claim 25 , wherein the organically coated calcium carbonate ranges from about 45% to about 65% by weight.
30. The biodegradable article of claim 25 further comprising nanoparticles of a mineral material.
31. The biodegradable article of claim 25 further comprising at least one component selected from the group consisting of plasticizers, flow promoters, polymer processing aids, slip agents, viscosity modifiers, chain extenders, nanoparticles, spherical glass beads, organic fillers, inorganic fillers, fibers, colorants, anti-microbial agents and combinations thereof.
32. An article comprising:
a polymer composition comprising about 10% to about 45% by weight of a poly(lactic acid), about 5% to about 65% by weight of an aliphatic polyester, and about 40% to about 75% by weight of an organically coated calcium carbonate.
33. The article of claim 32 further comprising nanoparticles of a mineral material.
34. The article of claim 32 , wherein the article is selected from the group consisting of polymer foams, toys, computer casing, DVDs, toiletries, combs, consumer products, cellular phone casings, bags, foam material products, packaging, automobile parts, cookware and combinations thereof.