Multi-layer materials and articles made therefrom and methods of making
In an embodiment, a multi-layer article having an interior, the article comprises a second layer comprising a bisphenol A polycarbonate; and an inner layer comprising a terephthalic copolyester; polyethylene furanoate; or a combination comprising at least one of the foregoing; wherein the inner layer forms a barrier between the second layer and the interior. The article has at least one of: a decrease in transparency of less than or equal to 5% after sterilization in an autoclave for 30 minutes at 120° C., and a decrease in transparency of less than or equal to 5% after 50 cycles of hot filling with water for 30 minutes at 90° C.
1. A multi-layer article having an interior, the article comprising:
a second layer comprising a bisphenol A polycarbonate; and
an inner layer comprising a terephthalic copolyester; polyethylene furanoate; or a combination comprising at least one of the foregoing;
wherein the inner layer forms a barrier between the second layer and the interior; wherein the article has at least one of: a decrease in transparency of less than or equal to 5% after sterilization in an autoclave for 30 minutes at 120° C., and a decrease in transparency of less than or equal to 5% after 50 cycles of hot filling with water for 30 minutes at 90° C.
2. The article of claim 1 , wherein the inner layer comprises a terephthalic copolyester comprising poly(2,2,4,4-tetramethyl-1,3-cyclobutylene terephthalate)-co-poly(cyclohexanedimethylene terephthalate).
3. The article of claim 1 , wherein the inner layer comprises a terephthalic copolyester comprising a poly(cyclohexanedimethylene terephthalate)-co-poly(ethylene terephthalate) comprising greater than 50 mol % to 99.9 mol % of poly(1,4-cyclohexanedimethylene terephthalate).
4. The article of claim 1 , wherein the inner layer comprises a terephthalic copolyester comprising poly(cyclohexanedimethylene terephthalate)-co-poly(ethylene terephthalate) comprising greater than 50 mol % to 99.9 mol % of poly(ethylene terephthalate).
5. The article of claim 1 , wherein the inner layer comprises a terephthalic copolyester comprising poly(pentaspiroglycol terephthalate)-co-poly(ethylene terephthalate).
6. The article of claim 1 , wherein the terephthalic copolyester or the polyethylene furanoate has an inherent viscosity of 0.35 to less than 0.70 deciliters per gram as determined in 60:40 (wt:wt) phenol:tetrachloroethane solution at a concentration of 0.5 grams per 100 milliliters at 25° C.
7. The article of claim 1 , wherein the total thickness of the article is 0.4 to 4 mm and/or the thickness of the inner layer is 0.1 to 1 mm.
8. The article of claim 1 , wherein the article is a container, and, during use, the second layer has no contact with the contents within the container.
9. The article of claim 1 , wherein the article has a thickness and wherein the second layer forms greater than or equal to 50% of the article thickness and the inner layer forms less than or equal to 50% of the article thickness.
10. The article of claim 1 , wherein the article is a bottle having a capacity up to 37.8 liters, wherein the article is a baby bottle, a jelly jar, a tomato sauce jar, or a water bottle.
11. A method of making the article of claim 1 , comprising:
forming the article with the second layer and the inner layer using thermoforming, blow molding, extrusion blow molding, extrusion stretch molding, injection molding, injection blow molding, injection stretch blow molding, over-molding, injection over-molding, or a combination comprising at least one of the foregoing.
12. The article of claim 1 , wherein the terephthalic copolyester is a copolyester derived from a terephthalic acid, an optional dicarboxylic acid other than the terephthalic acid, and two or more diols.
13. The article of claim 12 , wherein the dicarboxylic acid other than the terephthalic acid or 2,5-furan dicarboxylic acid comprises isophthalic acid, 4,4′-biphenyldicarboxylic acid, naphthalenedicarboxylic acid, trans-4,4′-stilbenedicarboxylic acid cyclohexanedicarboxylic acid, malonic dicarboxylic acid, succinic dicarboxylic acid, glutaric dicarboxylic acid, adipic dicarboxylic acid, pimelic dicarboxylic acid, suberic dicarboxylic acid, azelaic dicarboxylic acid, dodecanedioic dicarboxylic acid, indan-1,3-dicarboxylic acid, 1,2,3-trimethyl-3-phenylindan-4′,5-dicarboxylic acid, 1,1,3-trimethyl-5-carboxy-3-(4-carboxyphenyl)indan dicarboxylic acid, or a combination comprising at least one of the foregoing.
14. The article of claim 12 , wherein the terephthalic acid or 2,5-furan dicarboxylic acid is present in an amount of 70 to 100 mol % and the optional dicarboxylic acid is present in an amount of more than 0 to 30 mol % based on the total number of moles in the terephthalic copolyester.
15. The article of claim 12 , wherein the inner layer comprises the terephthalic copolyester and wherein the two or more diols comprise 2,2,4,4-tetramethyl-1,3-cyclobutanediol, cyclohexanedimethanol, ethylene glycol, diethylene glycol, 1,2-propanediol, 1,3-propanediol, neopentyl glycol, 1,4-butanediol, 1,5-pentanediol, 1,6-hexanediol, p-xylene glycol, polytetramethylene glycol, pentaspiroglycol, or 2,2-dimethyl-1,3-propanediol.
16. The article of claim 1 , wherein the inner layer comprises the polyethylene furanoate.
17. The article of claim 16 , wherein the polyethylene furanoate is a polyester derived from 2,5-furan dicarboxylic acid, an optional dicarboxylic acid other than the 2,5-furan dicarboxylic acid, and a glycol component comprising ethylene glycol.