HIGH STRENGTH BOTTLE
A bottle with improved strength is provided. The bottle can have a liquid holding capacity of at least 2.5 gallons and can exhibit a drop impact resistance of at least 3 feet as measured by ASTMD 2463-95. The bottle can be formed from a substantially BPA-free material. The bottle can be used in liquid dispensers, such as water coolers.
Latest Eastman Chemical Company Patents:
- CAP SHEETS USEFUL FOR FUNCTIONAL FILMS
- Thermally stable cellulose ester compositions and articles made using these compositions
- POLYESTER COMPOSITIONS COMPRISING TETRAMETHYL CYCLOBUTANEDIOL AND 1,4-CYCLOHEXANEDIMETHANOL HAVING AN IMPROVED CATALYST SYSTEM COMPRISING LITHIUM AND GALLIUM
- POLYESTER COMPOSITIONS COMPRISING TETRAMETHYL-CYCLOBUTANEDIOL HAVING AN IMPROCED CATALYST SYSTEM COMPRISING LITHIUM AND GALLIUM ATOMS
- POLYESTER COMPOSITIONS COMPRISING TETRAMETHYL CYCLOBUTANEDIOL AND 1,4-CYCLOHEXANEDIMETHANOL HAVING AN IMPROVED CATALYST SYSTEM COMPRISING TITANIUM AND ZINC
1. Field of the Invention
The present invention is directed to bottles having handles. More particularly, the present invention is directed to large capacity bottles having handles and being suitable for use in liquid dispensers, such as water coolers.
2. Description of the Related Art
BPA-based polycarbonates have long been used to produce various types of food and beverage containers. However, due to some reports that BPA-based polycarbonates may have negative health effects, an emphasis has recently been placed on producing containers that are “BPA-free.” In particular, the container industry has focused on the production of beverage bottles, where leaching of BPA into the beverage has been a concern due to the prolonged exposure of the beverage to the BPA-based polycarbonate. However, most of the bottle industry's BPA-free focus has been on smaller bottles with a capacity of less than one liter.
Despite the desire to produce beverage bottles that are BPA-free, many materials that could potentially replace BPA-based polycarbonates exhibit deficiencies in one or more important characteristics, such as strength, toughness, chemical resistance, clarity, heat resistance, and/or processability. Currently, there are no BPA-free bottles having a large capacity (e.g., at least 2.5 gallons) that are sufficiently designed to exhibit the desired characteristics (e.g., strength, toughness, chemical resistance, heat resistance, and/or clarity) sought in large capacity bottles.
Accordingly, there is a need for a large capacity bottle that can be formed of a BPA-free material, yet still exhibit the desired characteristics.
SUMMARYOne embodiment of this invention is directed to a bottle comprising an outlet at a first end of the bottle, a base at a second end of the bottle, and a main body located between the outlet and base. A central longitudinal axis extends in a longitudinal direction between the first and second ends of the bottle. The main body of the bottle comprises a well panel and an integrally-formed handle. The well panel at least partly defines a recessed well and the handle spans at least a portion of the recessed well. The outer surface of the well panel defines a concave longitudinal panel curve along a longitudinal reference plane, which contains the longitudinal axis and extends through the centroid of the well panel. The outer surface of the well panel defines a convex transverse panel curve along a transverse reference plane that extends through the centroid of the well panel and is oriented such that the longitudinal axis is normal to the transverse reference plane.
Another embodiment of the invention is directed to a substantially BPA-free bottle comprising an outlet at a first end of the bottle, a base at a second end of the bottle, and a main body located between the outlet and base. The bottle defines a central longitudinal axis extending in a longitudinal direction between the first and second ends of the bottle. Furthermore, the main body comprises a well panel and a handle, wherein the well panel at least partly defines a recessed well and the handle spans at least a portion of the recessed well. The bottle comprises a synthetic polymeric material that makes up at least 90 percent of the total weight of the bottle, Additionally, the synthetic polymeric material comprises less than 1 weight percent of bisphenol A polycarbonate. Moreover, the bottle has a liquid holding capacity of at least 2.5 gallons and a weight of at least 600 grams and not more than 900 grams. Finally, the bottle has a drop impact resistance of at least 3 feet as measured by ASTMD 2463-95.
Embodiments of the present invention are described herein with reference to the following drawing figures, wherein:
In one embodiment, the present invention is directed to a large bottle having enhanced strength properties such as, for example, drop impact resistance. Such bottles may be suitable for use in liquid dispensers such as water coolers.
The bottle can have a liquid holding capacity of at least 2.5, 4.0, 4.5, or 4.75 gallons and/or not more than 10, 8, 6, or 5.5 gallons. In one embodiment, the bottle can have a liquid holding capacity of about 5 gallons. Furthermore, the bottle can have a weight of at least 600, 650, 700, or 725 grams and/or not more than 900, 850, 800, or 775 grams. To ensure that the bottle can fit into a standard liquid dispenser, the bottle can have a maximum diameter of at least 6, 8, or 10 inches and/or not more than 18, 14, or 12 inches.
The strength of the bottle can be measured in terms of drop impact resistance. In one embodiment, the bottle can have a drop impact resistance of at least 3, 4, or 5 feet as measured by ASTM D 2463-95. The enhanced strength of the bottle can be at least partly derived from its physical design. To further illustrate the physical design of the bottle, various features of the bottle are described in detail below with reference to the drawing figures.
As shown in
The bottle 20 depicted in
As depicted in
As shown in
As depicted in
In addition,
As illustrated in
Certain aspects of the above-described bottle design enable the bottle to be produced from a substantially BPA-free material, while still maintaining the desired strength for the bottle. Thus, in one embodiment, the bottle of the present invention can be made from materials other than BPA-based polycarbonates. As used herein, “substantially BPA-free” refers to an article or material that contains less than 1, 0.5, 0.1, 0.05, or 0.01 weight percent of BPA-based polycarbonate.
In one embodiment of the present invention, the bottle can be at least partly formed from a substantially BRA-free synthetic polymeric material. The synthetic polymeric material can make up at least 50, 75, 90, 95, or 100 percent of the total weight of the bottle. In one embodiment, the bottle of the present invention can be formed by blow molding the synthetic polymeric material into the desired configuration discussed in detail above.
The synthetic polymeric material used to make the bottle can have a flexural modulus of at least 100,000, 150, 000, 200,000, or 215,000 psi and/or not more than 350,000, 300, 000, 250,000, or 230,000 psi as measured by ASTM D790. The synthetic polymeric material can have a flexural yield strength of at least 5,000, 7,000, or 8,500 psi and/or not more than 12,000, 10,000, or 9,500 psi as measured by ASTM D790. The synthetic polymeric material can have a tensile strength at yield of at least 4,000, 5,000, 6,000, 6,500, or 7,250 psi and/or not more than 10,000, 9,000, 8000, or 7,000 psi as measured by ASTM D638. The synthetic polymeric material can have an impact strength of at least 8, 12, 14, or 15 ft-lb/in as measured by ASTM D256. The synthetic polymeric material can have a glass transition temperature of at least 90, 100, or 110 and/or not more than 140, 130, or 120° C. as measured by ASTM E1640-09. The synthetic polymeric material can have a melt viscosity of at least 1,000, 2,000, or 3,000 poise and/or not more than 20,000, 15,000, 12,000, 10,000, 8,000, or 6,000 poise as measured at 1 radian per second on a rotary melt rheometer at 290° C. The synthetic polymeric material can have an inherent viscosity of at least 0.4, 0.5, 0.6, 0.65, or 0.7 and/or not more than 1.0, 0.9, 0.8, or 0.75, as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.5 grams per 100 milliliters at 25° C. The synthetic polymeric material can have a transmittance of at least 75, 85, or 88 percent as measured by ASTM D1003. The synthetic polymeric material can have a haze of less than 5, 3, or 1.5 percent as measured by ASTM D1003.
According to certain embodiments of the present invention, the synthetic polymeric material can be a polyester or copolyester. In one embodiment, the synthetic polymeric material can comprise glycol units derived from 2,2,4,4-tetramethyl-1,3-cyclobutanediol and/or 1,4-cyclohexanedimethanol. In a more specific example, the synthetic polymeric material can be a polyester having a dicarboxylic acid component and a glycol component, where the dicarboxylic component comprises at least 70, 80, 90, 95, or 100 mole percent of terephthalic acid residues and the glycol component comprises at least 10, 15, 20, or 25 mole percent and/or not more than 80, 60, 40, 35, or 30 mole percent of 2,2,4,4-tetramethyl-1,3-cyclobutanediol and at least 20, 40, 60, 65, or 70 mole percent and/or not more than 90, 85, 80, or 75 mole percent of 2,2,4,4-tetramethyl-1,3-cyclobutanediol.
In one embodiment, the synthetic polymeric material can comprise TRITAN WX500 or TRITAN WX510, available from Eastman Chemical Company of Kingsport, Tenn.
The inventors hereby state their intent to rely on the Doctrine of Equivalents to determine and assess the reasonably fair scope of the present invention as it pertains to any apparatus not materially departing from but outside the literal scope of the invention as set forth in the following claims.
Claims
1. A bottle comprising an outlet at a first end of said bottle, a base at a second end of said bottle, and a main body located between said outlet and said base, wherein said bottle defines a central longitudinal axis extending in a longitudinal direction between said first and second ends of said bottle, wherein said main body comprises a well panel and an integrally-formed handle, wherein said well panel at least partly defines a recessed well and said handle spans at least a portion of said recessed well, wherein the outer surface of said well panel defines a concave longitudinal panel curve along a longitudinal reference plane containing said central longitudinal axis and extending through the centroid of said well panel, wherein the outer surface of said well panel defines a convex transverse panel curve along a transverse reference plane that extends through the centroid of said well panel and is oriented such that said central longitudinal axis is normal to said transverse reference plane.
2. The bottle of claim 1, wherein the outer surface of said well panel has the shape of a hyperbolic paraboloid.
3. The bottle of claim 1, wherein said transverse panel curve has a radius of curvature (R2) of at least 10 inches and not more than 60 inches, wherein said transverse panel curve extends circumferentially through an angle (A3) of at least 90 degrees and not more than 180 degrees, measured relative to said central longitudinal axis.
4. The bottle of claim 1, wherein said longitudinal panel curve has a radius of curvature (R4) of at least 1 inch and not more than 10 inches, wherein said longitudinal panel curve extends longitudinally through an angle (A4) of at least 100 degrees and not more than 180 degrees.
5. The bottle of claim 1, wherein said main body further comprises at least one sidewall extending substantially parallel to said central longitudinal axis, wherein said sidewall has a substantially cylindrical shape and is centered around said central longitudinal axis, wherein the ratio of the radius of curvature of said transverse panel curve (R2) to the radius of curvature of said sidewall (R3), measured along said transverse reference plane, is at least 2:1 and not more than 20:1.
6. The bottle of claim 1, wherein said handle defines an open internal passageway sized to permit a sphere having a diameter of at least 0.5 inches to pass entirely therethrough.
7. The bottle of claim 1, wherein said handle presents a curved outer profile, wherein said curved outer profile has a radius of curvature (R5) of at least 4 inches and not more than 30 inches, wherein said curved outer profile extends longitudinally through an angle (A5) of at least 5 degrees and not more than 50 degrees.
8. The bottle of claim 1, wherein said handle defines first and second handle end points located on the outermost opposite terminal ends of said handle, wherein a handle orientation line is defined between said first and second handle end points, wherein said handle orientation line is either parallel to said central longitudinal axis or skewed relative to said central longitudinal axis by an angle of less than 20 degrees.
9. The bottle of claim 8, wherein said main body further comprises a substantially cylindrical sidewall to which said well panel is coupled, wherein said handle orientation line is spaced inwardly from the outer circumference of said sidewall by a distance of at least 0.1 inches.
10. The bottle of claim 1, wherein said base comprises a chime and a concave push-up.
11. The bottle of claim 10, wherein said push-up has a radius of curvature (R5) of at least 2 inches and not more than 18 inches.
12. The bottle of claim 10, wherein said push-up has a substantially circular outer perimeter having a radius (R6) of at least 1.5 inches and not more than 5 inches.
13. The bottle of claim 10, wherein said bottle comprises a weld extending along said transverse reference plane, wherein said base further comprises a pair of concave tunnel recesses, wherein said weld extends through said tunnel recesses.
14. The bottle of claim 1, wherein bottle further comprises a neck, an expansion section, and a shoulder, wherein said neck is located adjacent said outlet, said shoulder is located adjacent said main body, and said expansion section is located between said neck and said shoulder, wherein said expansion section has a generally frusto-conical shape, wherein said expansion section forms an angle (A1) of at least 25 degrees and not more than 40 degrees from a plane normal to said central longitudinal axis.
15. The bottle of claim 1, wherein said bottle has a weight of at least 600 grams and not more than 900 grams, wherein said bottle has a liquid holding capacity of at least 2.5 gallons and not more than 10 gallons.
16. The bottle of claim 15, wherein said bottle has a drop impact resistance of at least 3 feet as measure by ASTM D 2463-95.
17. The bottle of claim 15, wherein said bottle is at least partly formed of a synthetic polymeric material, wherein said synthetic polymeric material makes up at least 50 percent of the total weight of said bottle.
18. The bottle of claim 17, wherein said synthetic polymeric material comprises less than 1 weight percent of bisphenol A polycarbonate.
19. The bottle of claim 17, wherein said polymeric material has a flexural modulus of at least 100,000 psi and not more than 300,000 psi as measured by ASTM D790.
20. The bottle of claim 17, wherein said polymeric material comprises a dicarboxylic acid component and a glycol component, wherein said dicarboxylic acid component comprises at least 70 mole percent of terephthalic acid residues, wherein said glycol component comprises at least 10 mole percent and not more than 80 mole percent of 2,2,4,4-tetramethyl-1,3-cyclobutanediol, wherein said glycol component comprises at least 20 mole percent and not more than 90 mole percent of 2,2,4,4-tetramethyl-1,3-cyclobutanediol.
21. A substantially BPA-free bottle comprising an outlet at a first end of said bottle, a base at a second end of said bottle, and a main body located between said outlet and said base, wherein said bottle defines a central longitudinal axis extending in a longitudinal direction between said first and second ends of said bottle, wherein said main body comprises a well panel and a handle, wherein said well panel at least partly defines a recessed well and said handle spans at least a portion of said recessed well, wherein said bottle comprises a synthetic polymeric material that makes up at least 90 percent of the total weight of said bottle, wherein said synthetic polymeric material comprises less than 1 weight percent of bisphenol A polycarbonate, wherein said bottle has a liquid holding capacity of at least 2.5 gallons, wherein said bottle has a weight of at least 600 grams and not more than 900 grams, wherein said bottle has a drop impact resistance of at least 3 feet as measured by ASTMD 2463-95.
22. The bottle of claim 21, wherein said polymeric material has a flexural modulus of at least 100,000 psi and not more than 300,000 psi as measured by ASTM D790.
23. The bottle of claim 21, wherein said polymeric material has a transmittance of at least 85 percent as measured by ASTM D1003, wherein said polymeric material has a haze of less than 3 percent as measured by ASTM D1003.
24. The bottle of claim 21, wherein said polymeric material is a polyester or copolyester.
25. The bottle of claim 21, wherein said polymeric material comprises a dicarboxylic acid component and a glycol component, wherein said dicarboxylic acid component comprises at least 70 mole percent of terephthalic acid residues, wherein said glycol component comprises at least 10 mole percent and not more than 80 mole percent of 2,2,4,4-tetramethyl-1,3-cyclobutanediol, wherein said glycol component comprises at least 20 mole percent and not more than 90 mole percent of 2,2,4,4-tetramethyl-1,3-cyclobutanediol.
26. The bottle of claim 21, wherein said polymeric material is TRITAN WX500 or TRITAN WX510.
27. The bottle of claim 21, wherein said well panel has the shape of a hyperbolic paraboloid.
28. The bottle of claim 21, wherein said main body further comprises at least one sidewall extending substantially parallel to said central longitudinal axis, wherein said sidewall has a substantially cylindrical shape and is centered around said central longitudinal axis, wherein the outer surface of said well panel defines a convex transverse panel curve along a transverse reference plane extending normal to said central longitudinal axis and through the centroid of said well panel, wherein the ratio of the radius of curvature of said transverse panel curve (R2) to the radius of curvature of said sidewall (R3), measured along said transverse reference plane, is at least 2:1 and not more than 20:1.
29. The bottle of claim 21, wherein the outer surface of said well panel defines a convex transverse panel curve along a transverse reference plane that extends through the centroid of said well panel and is oriented such that said central longitudinal axis is normal to said transverse reference plane, wherein a radius of curvature of said transverse panel curve (R2) is at least 10 inches and not more than 60 inches, wherein said transverse panel curve extends circumferentially through an angle (A3) of at least 90 degrees and not more than 180 degrees as measured relative to said central longitudinal axis, wherein the outer surface of said well panel defines a concave longitudinal panel curve along a longitudinal reference plane containing said central longitudinal axis and extending through the centroid of said well panel, wherein a radius of curvature of said longitudinal panel curve (R4) is at least 1 inch and not more than 10 inches, wherein said longitudinal panel curve extends longitudinally through an angle (A4) of at least 100 degrees and not more than 180 degrees.
30. The bottle of claim 21, wherein said handle is substantially hollow and is in fluid communication with the interior of said bottle.
Type: Application
Filed: Jun 1, 2011
Publication Date: Dec 6, 2012
Applicant: Eastman Chemical Company (Kingsport, TN)
Inventors: William Joseph Burgess (Jonesborough, TN), Thomas Joseph Pecorini (Kingsport, TN), Cedric Perben (Les Cheres), Calvin James Becker (Shepherdstown, WV)
Application Number: 13/150,363
International Classification: B65D 1/02 (20060101); B65D 90/02 (20060101); B65D 25/26 (20060101); B65D 25/28 (20060101); B65D 8/12 (20060101);