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The European Food Safety Authority (EFSA) has released a safety assessment of the substance dimethyl carbonate for use in food contact materials. 

This guide releases an opinion on the safety of dimethyl carbonate in “repeated-use” food contact materials. EFSA concludes that no safety concern exists for the use of dimethyl carbonate in FCMs: 

  • used with 1,6-hexanediol in the manufacture of polycarbonate prepolymers. [This prepolymer is used at up to 30% to make a thermoplastic polyurethane with MDI (4,4′-methylenediphenyldiisocyanate) and diols, such as polypropylene glycol and 1,4-butanediol]; and 
  • applied in repeated-use articles intended for contact with foods for which 3% acetic acid and 10% ethanol are specified as simulants and under contact conditions covered by simulation during 30 minutes at 40°C. 

The assessment was published on July 18, 2017.  



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