Development status and trend of polyethylene napht

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The development status and trend of polyethylene naphthalate abroad (II)

the copolymerized pen and pen/pet blend resin produced by Amoco company is mainly used in hot filling packaging bottles with temperatures up to 100 ℃ and non deformable cooking bags with temperatures up to 130 ~ 138 ℃

while producing pen resin, Teijin also has a biaxial stretched pen film production line with a production scale of 4000t/A. the products are mainly used for food packaging

although the price of pen in the Japanese market has been reduced by 25% compared with 1992, its profit margin is still considerable compared with its manufacturing cost. In addition, after pet is modified by pen, the added value of its products can be greatly improved. Therefore, in recent years, many pet manufacturers have begun or intend to enter the pen industry. Especially in the wave of pet amplification, some manufacturers plan to transform the obsolete old PET production units for the production of pen. Some chemical fiber engineering companies, such as Gemma, evanda, Buhler, which have made a lot of profits in the construction of pet projects, have lost no time in announcing that they can undertake pen projects. The 40000 t/a pet, pen and PBT flexible production units of Radici group in Italy, which have recently been put into operation, are contracted and constructed by neu

at present, the main factor affecting the development of pen is no longer limited to the price of pen, and its production raw materials are also in short supply. Although Amoco, Mitsubishi Gas Chemical and other companies have continued to expand pen production capacity in recent years, the products are still in short supply. At present, the NDC produced by Amoco and Mitsubishi Gas Chemical can only be used by old users who have had many years of cooperation in pen development, such as Eastman, DuPont, shell chemical, ICI and teiren. Even Aland, an old American Pet manufacturer, has to indirectly purchase pen chips from ICI to develop pen cord

according to Amoco NDC marketers, Amoco will not accept new customers until new capacity is added. Except for supplying Diren, the company will not supply products to Asia at present. Although Amoco has recently expanded NDC production by increasing the capacity and new construction of current devices, the tight supply and demand situation of its products will be difficult to change for the time being

from the perspective of future development trends, Amoco and other companies' monopoly on NDC is only temporary. At present, the production technology of NDC has obviously formed two mixing agent technology routes coated with high-purity graphite and salt free butter: one is the technical route of petrochemical enterprises using butadiene and o-xylene as raw materials; The other is the technical route of naphthalene alkylation in steel related enterprises. There is still a large market space for the development of extruder industry. The former is a technology jointly developed by American sunoil company and Japanese Teijin company. This technology has been transferred to Amoco, but the contract does not restrict Teijin from producing NDC by itself. Diren will build a set of 25000 T/a NDC device. In addition, Mitsubishi Gas Chemical Company of Japan has also independently developed this technical route

Japanese iron and steel enterprises with rich naphthalene resources believe that the development and production of NDC with naphthalene is very economical and reasonable. Recently, the advanced naphthalene alkylation technology and dimethyl naphthalene refining technology jointly developed by Kobe iron and steel company and Mobil Chemical Company have been successful, which is very economical and can significantly reduce the production cost of pen. Compared, the cost price of pen is only 1.5 times that of pet

at present, pen resin has been applied in many fields, such as audio-visual materials, packaging materials, electronic and electrical materials, photographic film recording materials, industrial cord and so on. In 2000, with the further growth of world pen production, its consumption is expected to exceed 200000 t/A. After entering 2001, the problem of insufficient raw materials of pen in the world will be fixed on the pull rod and gradually alleviated, while the NDC market will face fierce competition. Far sighted NDC developers have extended their tentacles and actively seek long-term ordering partners. With the expansion of the production scale of NDC and pen, the price of pen will go down, and pen products with excellent performance and moderate price will be used more widely

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