Environmental Measures

Chemical Substance Management

Minimizing Chemical Substance Risks

The Dexerials Group has established chemical substance management regulations for the entire company and has organized a Chemical Substance Management Committee to ensure continued product compliance concerning chemical substances, to continue providing safe and secure products to our customers into the future, and to maintain the work environment, and is strengthening its systems for the appropriate, integrated management of the chemical substances used by the company.
As well as managing the use of chemical substances in the company’s business activities, the committee checks and deals with regulatory aspects of matters ranging from the purchase of raw materials to product design, manufacture, distribution, import and export, to ensure that the company responds appropriately to recent legislative amendments relating to chemical substances, both within Japan and overseas. This committee is a cross-functional organization comprising members selected from among each division, and while each member has the role of ensuring compliance for chemical substances in their respective posts, activities are also proactively expanded by the committee, including giving advice for company-wide activities using the specialist knowledge from their respective posts. The information shared among the committee is shared not only with Plants in Japan but also with overseas locations, so that the Group is managed as a whole, including confirming the status of overseas locations by the Secretariat. Also, in terms of sub-documents for chemical substance management regulations, by-laws have been established for the chemical substances management regulations that clarify the rules from introduction through to use, product shipping, and disposal.

Chemical Substance Management Committee

Response to the Pollutant Release and Transfer Register (PRTR) Law

The Group ascertains the results of release and transfer volumes of chemical substances based on the PRTR Law, and reports the total amounts for each year. Chemical substance release and transfer volumes for each plant in the fiscal 2017 are shown below.
We use a method to divide data into release or transfer based upon the distribution coefficient* of actual purchase of chemical substances.
At Dexerials, adhesives and adhesive tapes using many organic solvents are produced, so the emissions volume of toluene, etc., is high as a result.
Regarding these organic solvents, the volatile gases emitted during the manufacture of adhesive tape are recovered, and re-used as energy by means of a heat exchange through combustion in a boiler.

  • * Distribution coefficient: A method of calculating the value of corresponding changes in actual purchase values by setting a coefficient for movements/emission volumes inthe product manufacturing process.

FY 2017 PRTR Substances (Japanese plants only)

Plant Chemical substance Release/transfer volume calculation (t)
Kanuma Factory No.1
Kanuma Factory No.2
Acrylic acid and its water soluble salts 0.173
2-hydroxyethyl acrylate 0.053
n-Butyl acrylate 5.520
Antimony and its compounds 0.266
Ethylbenzene 0.436
Xylene 0.406
Toluene 12.110
Hexamethylene diacrylate 0.589
Nickel 0.081
n-Hexan 1.519
Nakada Plant Indium and other compounds 0.000
Nickel compounds 0.230
Manganese and its compounds 0.300

Responding to Product Environmental Regulations

The Dexerials Group is endeavoring to respond to the European Community’s REACH* regulation, with the aim of undertaking safety evaluations of chemical substances. If a chemical substance, mixture or article contains more than the prescribed content of a specific substance (substance of very high concern, or SVHC) stipulated in the REACH regulation, it is necessary to provide the customer with information about this and to submit a notification to the European Chemicals Agency. With regard to liquid products that are mixtures*, we have been working in partnership with Dexerials Europe B.V., our European local subsidiary, and onducting surveys concerning the chemical substances that need to be registered under REACH, and we have completed a preliminary registration for substances that must be registered.
The registration is later promoted through Substance Information Exchange Forum (SIEF) and all of the materials that must be registered are registered.
Also, in terms of continuous management, suppliers are regularly asked to conduct inspections using the method specified by Dexerials for the candidate list of SVHC, and it is determined whether there are chemicals from the SVHC candidate list based on those results.

  • * REACH stands for Registration, Evaluation, Authorization, and Restriction of Chemicals. It entered into force on June 1, 2007.
  • * Mixture: A combination of two or more chemical substances; among our product groups, this applies to such groups as liquid adhesives and thermosetting adhesive films

Management of chemical substances introduced

Because the chemical substances have a risk of adverse effects on the environment and health, for all chemical substances introduced, we conduct risk evaluations and Dexerials proprietary classifications based on risk assessment methods in order to strengthen use management. Regarding classification standards, the risk impact is correctly determined using criteria such as laws and GHS categorization results*.

  • * GHS Classification: “The Globally Harmonized System of Classification and Labelling of Chemicals” are classification standards adopted by the UN in July 2003 for dangerous and harmful chemicals.

Chemical Substance Management Education

The Dexerials Group frequently uses chemical substances in R&D and product manufacturing. For that reason, thorough education regarding the handling of chemical substances is given to employees from the time they join the company, and there is an internal curriculum that is implemented, including post-employment OJT and special education for specific materials. The company also recommends the acquisition of qualifications for handling materials, and all employees in the manufacturing and R&D Divisions have the necessary qualifications for handling hazardous materials.

Introduction of a Comprehensive Management System for Chemical Substances

The Dexerials Group has introduced a management system whereby raw materials and chemicals/reagents in wide use by development departments that are purchased are managed on a single system and recorded in a chemical substance database so that the data can then be output by item for PRTR totals and other objectives. This is useful for preventing compliance violations, as it can be widely used for investigations into the use of chemical substances by individual manufacturing departments, R&D Divisions, regulations or substance at plants in Japan and overseas, and to respond to revisions in applicable laws.

Comprehensive Management System for Chemical Substances