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R&D Reports

vol. 2003 - I (2003.5.30 issue)

Risk Assessment of Chemicals

A risk assessment system, i.e. TASCS (Toxicity Assessment System for Chemical Substances) was founded in Sumitomo Chemical Co., Ltd. in 1982, which is one of the supporting system for responsible care activities on industrial chemical. Since 1982, over 820 chemicals have been scientifically evaluated and over 4400 reports have been prepared for responsible care activities. In this system, the risk assessments for carcinogen, skin sensitizer et. al. were carried out. In a typical case of a skin sensitizer, the environmental concentrations in worker place were simulated in coupled with the measured data, and using the dose-response relationships in guinea pig study (maximization method), the risk in worker place was improved. In the early stage of chemical development, the prediction methods were applied for preliminary assessment, using database stored in Sumitomo Chemical Co., Ltd. as well as using a computer aid prediction system.
( 4 - 12 by Yumiko NAKAYAMA, Keisuke YAMAMOTO, Yosuke NAKAMURA, Fumio KISHIDA )

Countermeasures for the Soil Environmental Problems

The social request to the concern of healthy influence and the establishment of countermeasures by soil and groundwater pollution has been strongly desired. Based on those situations, the "Soil Contamination Countermeasures Law" about grasp of the situation of soil contamination and prevention of the human healthy influence by soil pollution etc. was enforced. It makes fairly obvious that countermeasures to cope with polluted soil will be further reinforced in the future, which in turn will variously affect related businesses and companies. We introduce about investigation technology and countermeasures of soil contamination and about activities on these businesses in SCAS, Ltd.
( 13 - 23 by Hiromitsu DAIGOBO, Kouichi NISHIKAWA, Kazumasa MIHARA, Yoshio INOUE, Hideharu FUJIMOTO )

Development of Functional Packaging Materials -Easy Peel Film-

Public needs for "barrier free" has brought the rapid expansion of the market of Easy Peel Film that is easy to open a lid in the packaging material fields. To meet this market demand, Sumitomo Chemical Co., Ltd has been making an extensive research and succeeded in the development of "Assist®", the functional film by using its sophisticated resin design technology along with its extrusion processing technology. Sumika Plastech Co., Ltd., subsidiary of Sumitomo Chemical Co., Ltd has been engaging in production and marketing of this "Assist®" film. Investigation of the fracture mechanism of the materials was the key to success for its product development. In this paper, several examples of product development to meet the client's various needs along with its product performance are addressed.
( 24 - 30 by Ryuma KURODA, Hiroaki TAKAHATA, Yasuyuki TAKAGI, Shinichi MITSUI, Akihiro FURUTA )

Oristar®A, as a New Natural Enemy Insect Formulation for Thrips Control

Oristar®A is a natural enemy insect formulation, which contains a predatory bug (Orius strigicollis) (Heteroptera, Anthocoridae) mainly distributed in Japanese main islands except Hokkaido, for thirps control. Oristar®A contains selected strain of O. strigicollis with non-diapause under short day period. Based on this character of Oristar®A, it shows more consistent efficacy than former Orius sauteri formulation in greenhouse cultivation in south-west Japan from autumn to spring, which provides the most important market for Oristar®A. In this paper, mass-production and detail of efficacy of Oristar®A are described and IPM (Integrated Pest Management) model including Oristar®A is also introduced.
( 31 - 36 by Noboru UKISHIRO, Yoshinori SHONO )

Development of Liquid Crystalline Polymer Film

Tsukuba research laboratory successfully developed the novel liquid crystalline polymer (LCP) materials for easily film and bottle moldings. These materials were developed from studies based on rheological and synthetic technologies for LCPs. The film obtained has high heat resistance, high modulus, high gas barrier, high solvent resistance, and so on. On the other hand, studies on reduction of anisotropy of the properties are now on progress.
( 37 - 42 by Takanari YAMAGUCHI, Hiroaki KUMADA, Yasuhiro YAMASHITA, Shino MATSUMI )

Development of Novel Aminations with Methoxyamines

Methoxyamine was found to directly aminate nitrobenzenes under basic conditions to give nitroanilines. The yield of nitroanilines was highly enhanced by the addition of a copper catalyst. In the course of our studies on the amination with methoxyamine, we also found that the amination of nitropyridines, nitroolefins, α, β-unsaturated carbonyl compounds and naphthoquinones gave aminonitropyridines, β-nitroenamines, β-acylenamines and aminonaphthoquinones, respectively. We describe here the novel aminations with methoxyamine.
( 43 - 53 by Shinzo SEKO, Kunihito MIYAKE )

Development of the Practical Concurrent Engineering Technique for Chemical Plant Industrialization -The result of a project is predictable with the measurement of GEN-RYU-KA index-

In order to overcome global competition and to keep continuous growth, it is indispensable to shorten the development period of products. Accordingly the practical CE technique was developed. In developing this technique, the following keywords were thought as the most important, ""GENRYU-KA"", ""running parallel"" and ""technological power"" ; 1)GEN-RYU-KA, i.e., formation of the subject in the initial stage of development, 2)making the system which enables simultaneous task execution, 3)harmonizing several technological power that is the basis of the developing. The subject of an industrialization-project was formed systematically by using various kinds of standardization sheets, the system which can manage a subject functionally with GEN-RYU-KA. By expressing of the project-progress-condition using the OZ-chart which consists of formation, solution distribution and completeness of the subject, it is able to evaluate quantitatively how to do work or the level of technological power The standard level of the degree of GEN-RYU-KA and degree of completeness for making project successful becomes clear, and it becomes possible to predict the results of the project. This technique was applied to the project, following achievements were obtained, i.e., 25% shortening of the total developing period, full achievement of the target and innovation of stuff-section business.
( 54 - 60 by Tatsuya OZAKI, Takanori ITOH )

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