Japan Publishes the Draft Positive Lists of Base Material and Additives

On May 31, 2023, the MHLW released 20230531 The draft of Table 1 and 20230531 The draft of Table 2 as the positive lists of base materials and additives.

The draft positive lists include Table 1 and Table 2.

Table 1: Base materials (Base polymer) – polymers were categorized into five groups:

Table 2: Additives

Reference

• Table 1: Base materials (Base polymer): Polymers (molecular weight 1,000 daltons or more) in synthetic resins
• Table 2: Additives:
  • As a general rule, low molecular organic substances that have a molecular weight of less than 1,000 daltons and that satisfy both of the following are those to be listed in the additives:
  • Substances that change the physical or chemical properties of a base material.
  • Substances used with intent to remain in the final product without chemical reaction.

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