High barrier compositions and articles employing same
View Patent ↗A high barrier composition to a gas or organic liquid usable as a coating or layer on an article. The composition includes a blend of polyetheramine resin and at least one additive being a highly hydrolyzed organic compound, preferably of a low molecular weight, either with our without boric acid. Articles employing the gas barrier composition also constitute a part of this invention.
1. A high gas barrier composition usable as a coating or layer on an article, said composition including a blend of polyetheramine resin and at least one additive being a highly hydroxylated organic compound and being present in a weight percentage of said composition for increasing the gas barrier properties of the polyetheramine resin.
2. The composition of claim 1 being a high oxygen barrier composition.
3. The composition of claim 1 , wherein said at least one additive is present in a weight percentage for increasing the gas barrier properties of the polyetheramine resin by at least 20 percent in comparison to the gas barrier properties of approximately the same weight of polyetheramine resin but without the additive.
4. The composition of claim 1 , wherein said at least one additive is a low molecular weight, highly hydroxylated organic compound.
5. The composition of claim 1 , including at least 0.5% of said at least one additive.
6. The composition of claim 1 , including more than 70% by weight of a polyetheramine resin and from about 0.5% to less than 30% of said at least one additive.
7. The composition of claim 1 , including 85-99.5 percent, by weight, polyetheramine resin and at least 0.5-15 percent, by weight, of said at least one additive.
8. The composition of claim 1 , including no more than 10 percent, by weight, of said additive.
9. The composition of claim 1 , further including from about 0.5% to less than 3% boric acid therein.
10. The composition of claim 1 , wherein said additives include both sorbitol and glycerin.
11. The composition of claim 1 , including two highly hydroxylated organic compound additives.
12. The composition of claim 11 , wherein one of said two additives is glycerin and the other of said two additives sorbitol.
13. The composition of claim 12 , wherein said glycerin and sorbitol are present in a combined weight percent of about 25.
14. The composition of claim 1 , wherein said at least one additive is glycerin.
15. The composition of claim 14 , including less than 30% of said at least one additive.
16. The composition of claim 14 , wherein the glycerin is present in a weight percent of the composition in the range of 0.5% to less than 30%.
17. The composition of claim 16 , including 85-99.5 percent, by weight, polyetheramine resin and 0.5-15 percent, by weight, glycerin.
18. The composition of claim 16 , including no more than 10 percent, by weight, glycerin.
19. The composition of claim 1 , wherein said at least one additive is sorbitol.
20. The composition of claim 19 , further including from about 0.5% to less than 3% boric acid therein.
21. The composition of claim 19 , wherein the sorbitol is present in a weight percent of the composition in the range of 0.5% to at least 40%.
22. The composition of claim 21 , including at least 5% sorbitol.
23. The composition of claim 21 , further including from about 0.5% to less than 3% boric acid therein.
24. An article including a high gas barrier layer comprising a blend of polyetheramine resin and an at least one additive being a highly hydroxylated organic compound for increasing the gas barrier properties of the polyetheramine resin.
25. The article of claim 24 , wherein said gas barrier layer is an oxygen barrier layer.
26. The article of claim 25 wherein said at least one additive increasing the oxygen barrier properties of the polyetheramine resin by at least 20%.
27. The article of claim 24 wherein said at least one additive being a low molecular weight, highly hydroxylated organic compound.
28. The article of claim 24 wherein said at least one additive includes glycerin.
29. The article of claim 28 wherein the glycerin is present in a weight percent of the composition in the range of 0.5% to less than 30%.
30. The article of claim 24 , wherein said at least one additive includes sorbitol.
31. The article of claim 30 , wherein the sorbitol is present in a weight percent of the composition in the range of 0.5% to at least 40%.
32. The article of claim 24 , further including boric acid in a weight percent of about 0.5 to less than 3 based on the weight of the barrier layer in the article.
33. The article of claim 24 , wherein said at least one additive includes both sorbitol and glycerin.
34. The article of claim 24 in the form of a packaging film.
35. The article of claim 24 , including a metallized layer on said barrier layer.
36. The article of claim 24 , including a multilayer, coextruded structure, said coextruded structure including a polypropylene core layer.
37. The article of claim 36 , wherein said coextruded structure is biaxially oriented.
38. The article of 36 , wherein said coextruded structure further includes a polyolefin layer on a side of the core layer opposed to the high gas barrier layer.
39. The article of claim 24 , wherein said high gas barrier layer is applied as a coating to the multilayer, coextruded structure.
40. The article of claim 24 , wherein said high gas barrier layer is applied to a tie layer of the article.
41. The article of claim 40 , wherein the tie layer is a maleic-anhydride grafted polypropylene.