The two-liter bottle is a common container for soft drinks. These bottles are produced from polyethylene terephthalate, also known as PET plastic, using the blow molding process. Bottle labels consist of a printed, tight-fitted plastic sleeve. A resealable screw-top allows the contents to be used at various times while retaining carbonation.
In the United States, the two-liter bottle is one of the few usages of the metric system. Since very few other beverages are sold in this exact quantity, the term "two-liter" in American English almost invariably refers to a soft drink bottle. Other common metric sizes for plastic soft drink bottles include 500 milliliters, 1 liter and 3 liters.
History
PepsiCo introduced the first two-liter sized soft drink bottle in 1970, The bottle was invented by a team led by Nathaniel Wyeth of DuPont who received the patent in 1973. In 1985, a three-liter bottle appeared on supermarket shelves. The design is still used to this day by some bottlers. Most modern-day two-liter bottles are one piece of polyethylene with a base that is molded with a radial corrugation to provide strength for the bottom and the ability to stand upright. Most early two-liters had a separate opaque base glued to the hemispherical bottom of the clear polyethylene flask. This base had a coaxial corrugation and drain holes.
Recycling
Main article: Recycling of PET BottlesUsed two-liter bottles see new life in a variety of uses including carpeting, boat hulls, polyester fabric, filling for jackets, sleeping bags, mattresses, pillows, recycling bins, scouring pads, and on an increasing scale, new soft drink bottles.
Inventive uses
- Two two-liter bottles can be used to simulate a tornado by putting water in one and taping the mouths of the two bottles together in an hourglass fashion. Raising the chamber filled with water upright with a swirling motion initiates the vortex.
- A craze in 2006 involved putting Mentos mints into a 2-liter bottle of diet cola to produce a fountain effect (the Diet Coke and Mentos eruption ).
- A dry ice bomb can be made from a two-liter bottle, water, and dry ice
- Water rockets often use a two-liter bottle. Fins are attached, the bottle is partially filled with water, and air is pumped in. On release, the air forces out a stream of water which propels the rocket higher than 100 meters (300 feet).
- A funnel by cutting the bottle in half.
- An impromptu bee or wasp trap can be created by cutting the bottle in half and inverting the top into the bottom half where soda remains or bait can be placed.
- The bottle portion of early two-liter bottles could be removed from its opaque base and then reinserted after cutting the top off the bottle and inverting it. If air holes were cut in it, this would create a small greenhouse or, if left uncut, a terrarium.
- An empty two-liter bottle sealed with its cap is sometimes used as a bobber for fishing in the ocean or in lakes and rivers.
See also
- Metrication in the United States
- Plastic Bottles
References
- ^ "PepsiCo - Company - History". PepsiCo. 2006 . http://www.pepsico.com/PEP_Company/History/index.cfm .
- ^ Nathaniel C. Wyeth (Filed November 30 , 1970 , Issued May 15 , 1973 ). "US Patent 3733309 Biaxially Oriented Poly(ethy.ene terephthalate) Bottle , via Google.com" . http://www.google.com/patents?vid=USPAT3733309 . Retrieved 2007-02-19 .
- ^ "PROSPECTS;Endangered Species". New York times. January 13, 1985 . http://query.nytimes.com/gst/fullpage.html?res=9E07E2DC173BF930A25752C0A963948260 .
- ^ "Alabama Business Hall of Fame to Celebrate 25th Anniversary". C&BA News. September 30, 1998 . http://v2.cba.ua.edu/about/news/press_releases/news093098.html .
- ^ "Best Practices and Industry Standards in PET Plastic Recycling". NAPCOR. 2003 . http://www.napcor.com/Master.pdf .
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