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R&D Reports

vol. 2009 - II (2009.11.30 issue)

Development of a New Acetophenone Hydrogenation Process for Propylene Oxide Production

Sumitomo Chemical Co., Ltd. has developed a new fixed bed hydrogenation process for acetophenone, which is the by-product of propylene oxide production process, in order to produce α-phenyl ethanol, the raw material for styrene monomers. A new copper catalyst has been developed for this process. The catalyst exhibits high activity per unit weight and high selectivity because of the suppression of side reactions such as hydrogenolysis. The competitive power of the PO/SM process has become stronger compared to the conventional process by using this new hydrogenation technology.
( 4~9 by Takuo HIBI,Shinya ITO,Noriaki OKU,Kiyoshi IWANAGA,Hirofumi KOIKE )

Review on Development of Polypropylene Manufacturing Process

Polypropylene (PP) is a typical commodity plastic and has been widely used in many application fields including packaging films, industrial components and miscellaneous goods, due to its excellence in properties such as stiffness, heat resistance and processability in addition to light weight material density and also a relatively low price. The continued demands from the market for higher performances have stimulated, particularly in recent time, the improvement of PP manufacturing processes with newly created ideas. This review describes, mainly based on the information published in literature and patents, an outline of the development history of PP manufacturing processes and an introduction to recent progress, including our own technologies.
( 10~18 by Hideki SATO,Hiroyuki OGAWA )

New Development of Polymer Additives

In response to specific customer needs, we have developed SUMILIZER® GP, SUMILIZER® GS, SUMILIZER® GM, SUMILIZER® GA-80 polymer additives (stabilizing agents) as unique products which have properties hitherto unseen. We have utilized these new properties to apply these unique products in a wide range of applications. This paper describes the mechanism of polyolefin stabilizing agents, and also trends in customer needs as a result of changes in the market environment, and presents the responses our company has made in the field of additives due to these factors. We will also introduce some of the steps we have been taking toward development of our new G series.
( 19~27 by Toshiya TAKAHASHI,Ryoji SOMA,Kenji KIMURA,Naoki INUI )

Development of Allergen Denaturing Agents

After the development of a mite allergen quick determining system, we carried out the development of allergen denaturing agents. First, tannic acid was evaluated as an allergen denaturing agent using the ELISA method. Then, we investigated various compounds for use as new allergen denaturing agents and identified materials such as rare-earth metal salts and zirconium salts as potential inorganic compounds, and materials such as cationic compounds as potential organic compounds. We also developed applications for these allergen denaturing agents including trigger type liquids and additives for filters and cleaning equipment.
( 28~37 by Keiichiro INUI )

SYNSUP, Synthetic Route Design System

We have developed SYNSUP and the supporting systems for users to access SYNSUP through both Intranets and the Internet. We herein summarize the history and the current status of the SYNSUP service provided to chemists in our company and also some group companies.
( 38~47 by Tetsuhiko TAKABATAKE )

Comet Assay, a New in vivo Mutagenicity Test - Regulatory Significance and Scientific Development

A new in vivo mutagenicity test, in vivo comet assay, has gained particular world wide attention. The comet assay is a promising technique for evaluating in vivo DNA damage to multiple organs with high sensitivity. However, there is no validated testing guideline based on the optimized experimental techniques. Recently, to establish a standardized testing method, an international validation study for in vivo comet assay has begun with a view to submitting a new OECD test guideline. In this review, we describe the regulatory trends toward this assay for the evaluation of chemical mutagenicity and our investigation of this testing method.
( 48~56 by Ryoko MATSUYAMA,Keiko OGATA,Sachiko KITAMOTO,Mika OOTA )

Analytical Method for Restricted Substances in Industrial Products Regulated by EU

In recent years, advanced regulations concerning restrictions on the use of hazardous substances have been enforced in the European Union (EU) as environmental pollution control acts. Subsequent to the RoHS (Restriction of the use of certain Hazardous Substances in electrical and electronic equipment) directive for electric and electronic equipment, restrictions on the use of hazardous substances are being examined in the field of all industrial products, where REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) regulations have been enforced. The use of fifteen substances of very high concern has been restricted by the REACH regulations. The European Commission (EC) has submitted proposals to amend the RoHS directive and one proposal is to consider adding four substances to the list of restricted substances. The importance of hazardous substances management in industrial products is increasing more and more from such a background. This paper describes testing methods for restricted substances in industrial products regulated by the EU.
( 57~66 by Masayuki ONISHI )

Ensuring Information Security in Sumitomo Chemical Group

Sumitomo Chemical Group treats ensuring information security as one of its business issues, and has promoted information security management in the whole group. When managing information security in the group, points to ponder and approaches to take are different from when managing it in a single company. This article will discuss the approaches, issues, solutions for the issues and future efforts regarding ensuring security management in Sumitomo Chemical Group, by using some case examples in Sumitomo Chemical Group.
( 67~76 by Tatsuhiro SUZUKI )

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