Compounding Unit

{
  "id": "MLC-T-ENV-005979",
  "term": "Compounding Unit",
  "field": "Environment",
  "definition": "1. Unit operation which blends, melts, and resolidifies solid polymers for the purpose of incorporating additives, colorants, or stabilizers into the final thermoplastic product. A unit operation whose primary purpose is to remove residual monomers from polymers is not a compounding unit.\n\n2. Unit operation which blends, melts, and resolidifies solid polymers for the purpose of incorporating additives, colorants, or stabilizers into the final elastomer product. A unit operation whose primary purpose is to remove residual monomers from polymers is not a compounding unit.",
  "references": [
    "40 CFR 63.1312 (CFR 2013)",
    "40 CFR 63.482 (CFR 2018)"
  ],
  "url": "https://mlchart.com/terminology/environment/compounding-unit/"
}