Polyethylene terephthalate beverage

PET Polyethylene terephthalate Beverage bottles, frozen food, boil-in-bag pouches, microwave food trays... 

Petra 140 (Allied Signal) is a 40 percent glass-reinforced polyethylene tereph-thalate from recycled soda bottles. It has a tensile strength of 26,000 psi and a heat-deflection temperature of 225°C at 264 psi. PC23MS-200 (MCR Polymers) contains at least 25 percent recyclate from personal computer compact disks and polyethylene terephthalate beverage bottles. DMDA-1343NT polyethylene (Union Carbide) contains 28 percent color-sorted recyclate and has physical properties similar to those of virgin stock. Encore resins (Hoechst Celanese) are a family of plastics based on 100 percent reclaimed thermoplastics such as acetal, polyester, polyphenylene sulfide, nylon 6/6, and liquid crystal polymer. 

In addition to MA, phthalic anhydride, and ethylene glycol, other common intermediates used for the production of unsaturated polyesters are fumaric acid, isophthalic acid, adipic acid, propylene glycol, diethylene glycol, and dipropylene glycol. Table 12.1 provides a summary of both common and specialty building blocks used in polyesters and contributions made by these intermediates to the properties of the products. Recycled polyethylene terephthalate beverage bottles may one day become an important raw material for unsaturated polyester resin production, providing an alternative for a substantial part of the petroleum-based intermediates. 

Perhaps the most important polyester is polyethylene terephthalate), commonly known as PET (or PETE 1 on plastic beverage bottles). The annual production of PET in the United States is of the order of 108 kg (105 metric tons). Much of this is converted into fabric (trade name, Dacron) or magnetically coated film (Mylar). 

Polyethylene terephthalate (PET) an amorphous polymer is available in an engineering grade. It is extensively used in beverage bottles and films. 

Polyethylene terephthalate is the dominant material for the manufacture of carbonated beverage bottles Why are the bottles clear despite the tendency for this polymer to form crystalline domains ... 

Polyethylene terephthalate) (PET) has become a major synthetic polymer during the past forty years. Significant commercial markets [1] have been developed for its application in textile and industrial fibers, films, and foamed articles, containers for carbonated beverages, water and other liquids, and thermoformed applications (e.g. dual ovenable containers). 

On the state level, the interplay of plastics and legislation began in 1978 with the introduction of the polyethylene terephthalate (PET) beverage bottle. In a relatively short time, nine states introduced Tx)ttle bills," or deposit laws on the return of plastic bottles. In these states, the deposit laws account for collection of an estimated 80 to 95% of the PET bottles sold. At present, at least 30 states are looking into some sort of waste management legislation involving plastics. 

Polyethylene terephthalate (PET) is used extensively in rigid containers, particularly beverage bottles for carbonated beverages. 

PET or PETE (polyethylene terephthalate) Most clear beverage bottles (used by many, including Dasani and Crystal Geyser) Best used in moderation recycle after one use. 

When compared to EBM, the IBM procedure permits the use of plastics that are suitable for EBM and, more important, those unsuitable for EBM. Specifically it is those with no controllable melt strength such as the conventional polyethylene terephthalate (PET) that is predominantly used in large quantities using the stretch IBM method for carbonated beverage bottle (liter and other sizes). 

Concerns about health effects caused by low levels of residual monomers in PVC and acrylonitrile resins promoted the consideration of condensation polymers such as poly(ethylene terephthalate) (PET) (41). Packaging resins based on acrylonitrile are extraordinarily good barriers that were considered for carbonated beverage bottles. The furor over residual monomers in these materials stunted their growth in spite of improved technology to reduce residuals to barely detectable levels. The step reaction polymer, polyethylene terephthalate(PET) has intrinsically much lower residual monomers in the as-made polymer, and it has become the material of choice for the carbonated beverage market (42). 

Another example is the switch by The Coca-Cola Company to bio-PET with is characterized by a 20% bio-based carbon content (http //www.coca-colacompany.com/ our-company/introducing-plantbottle, accessed 10 July 2013). Polyethylene terephthalate bottles are extensively used for packaging beverages, water, and a number of other food and nonfood items (Figure 14.4). Polyethylene terephthalate is manufactured by condensation... 

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