Products:
The products manufactured by DuPontSA are :
DMT ( Dimethyl Terephthalate)
The Dimethyl Terephthalate (DMT), an intermediate for polyester, is produced at Adana plant. The plant was started with a capacity of 60,000 tonnes in May 1977 under license from H�ls AG, Marl Germany. In October 1991, the capacity was increased to 1,20,000 tonnes per annum, and finally, in September 1998, it was expanded to 2,40,000 tonnes per annum.
Projects such as Residue, Waste Water treatment and a Vent Washing system have been implemented to increase the yield of raw materials (P-Xylene, Methanol).
As for environmental implications, the residue is treated in the Catalyst Recovery System, before going to the Boiler House for incineration. This is done to recover catalysts and prevent leaching heavy metals to the environment. Waste water collected from the system is treated by an anaerobic treatment in a waste water plant serving all of SASA.
Industrially DMT (Dimethyl Terephthalate ) was commonly used to produce polyester fibre until late 80's, but because of feedstock flexibility, terephthalic acid (PTA) increased its market share as a substitute intermediate of polyester fibre in the late 80's. However, DMT is still important in the manufacture of some of the chemicals as follows:
- Polyester film (support base for photosensitive emulsions in X -ray film, graphic art film, base for magnetic media including videotape, computer tape, floppy disks etc. and flexible packaging),
- Polybutylene terephthalate, pet engineering resins (automotive applications, electrical, electronic, industrial, machinery components and parts, alloys, blends),
- Cyclohexanedimethanol (thermoformed food containers, jars, bottles and medical packaging),
- Polycyclohexylene dimethylene terephthalate (electronic connectors, surface mount technology),
- Copolyester-eter elastomer (automotive applications)
- Dioctyl terephthalate plasticizers (flexible PVC plastics) and.
- Bottle grade polymer resin production.
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Draw Textured Yarn
DuPontSA's Draw Textured Yarn manufacturing facilities are at Adana, Garforth and Kurtkov.
Filament Yarn
DuPontSA produces a full range of polyester filament yarns, in its manufacturing bases in Adana, Garforth, Kutkoy, and Pontypool. It caters to diverse markets under the brands: CoolMax�, Micromattique Modylen, Securelle�, Supriva�, Terinda�, Thermolite� covering Apparel, Upholstery and Industrial markets. For further information e-mail [email protected]
TopPET Bottles
PET Bottles are produced by DuPontSA at its plants at Adana, Bursa, Izmir, Silivri.
PET Resin (Poly Ethylene Terephthalate)
PET Resin is produced at Adana and Wilton. There has been rapid growth and development in the PET bottle market since the introduction of the first single-piece bottles.
New demands have been made on the resin, triggering the development of new Melinar� grades. DuPontSA Melinar� containers are light, crystal clear and virtually unbreakable and Melinar� Laser+� is the latest in the new generation of polymers.
Blowing machines have increased dramatically in size and speed over the past few years. Both the number of moulds per machine and the number of bottles blown per mould per hour has increased. New demands have been placed on machines by new bottle sizes and shapes, such as contour and single serve bottles. Lightweighting has also been a major development. Consequently, there has been an increase in the performance required of the polymer. Melinar� Laser+� has been designed to meet the requirements of the latest machines in the most demanding applications. At the same time, performance on earlier machines has been improved to ensure that optimum productivity is achieved. DuPontSA also produce Melinar� Glaze�, a food grade PET formulated to give optimum performance in extrusion coating of paper and cardboard and the extrusion of thin sheet. Melinar� Eclat� is special slow crystallising grade of PET formulated for conversion by conventional single stage processing to very high quality cosmetic containers where high optical clarity consistent with thick walls is a prime requirement.
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Polyester Fibre
DuPontSA produces a full range of polyester fibres, at Adana and Uentrop, for diverse markets as apparel, home furnishings, sleepwear, outdoor products and transportation under brand names as under :
a. Comfort/Sleep/Seating Products
Aerelle� Aerelle� Teflon� Comforel� Comforel� Allerban� Comforel� Allerban� Teflon� Comforel� Supreme Comforel� Supreme Teflon� Comforel� Teflon� Hollofil� Hollofil� Allerban� Hollofil� Allerban� Teflon� Hollofil� Teflon� Quallofil� Quallofil� Microfibre� Quallofill� Teflon�
b. Nonwovens/Textiles/Sleep/Seating Products
Dacron�
c. Textiles/Specialties/Performance Fabrics
CoolMax�, Securelle� Thermolite� Thermolite� Base
TopPOY
DuPontSA produces POY at Adana and Garforth.
PTA (Purified Terephthalic Acid)
Man-made fibre, films and lightweight bottles are part of a huge range of products that we take for granted as part of modern life, and all contain polyester, derived from purified terephthalic acid (PTA). Purified Terephthalic Acid is produced at Wilton plant.
DuPontSA's PTA is used as the basis of Melinar� the company's own formulated polyester polymer and is also sold to other manufacturers around the world. Solvent-free powder coatings based on PTA are used in a wide range of applications where excellent weathering and corrosion resistance is required, for example garden furniture, outdoor equipment and car parts. In shoe manufacturing, car assembly and lamination, PTA is used to make light coloured, immensely strong glues. Polyester is used in many products that come into direct contact with our body and our food. This means that the quality of polyester raw materials, and in particular PTA, is critical. Any impurities could cause taste or smell problems, fibre spinning breakdowns and colour differences. DuPontSA's PTA is manufactured to world class quality standards and all aspects of the operation are controlled under a quality assurance system which, in 1998, was among the first to be certificated to IS09002. Though DuPontSA's PTA is more than 99.98% pure, the company is continually working to improve purity and consistency even further. This ongoing programme includes use of quality methods such as statistical process control (SPC) and statistical quality control (SQC) to reduce product variability and processing costs.
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