Polystyrene definition

Polystyrene means a thermoplastic petrochemical material utilizing the styrene monomer, including but not limited to polystyrene foam or expanded polystyrene, processed by any number of techniques, including but not limited to fusion of polymer spheres (expandable bead polystyrene), injection molding, foam molding, or extrusion-blow molding (extruded foam polystyrene), and clear or solid polystyrene (oriented polystyrene). The Recycle Code for polystyrene is ‘6’ or ‘PS,’ either alone or in combination with other letters. This definition applies to all Polystyrene Food Service Ware, regardless of whether it exhibits a Recycle Code.
Polystyrene means and includes expanded polystyrene which is a thermoplastic petrochemical material utilizing a styrene monomer and processed by any number of techniques including, but not limited to, fusion of polymer spheres (expandable bead polystyrene), injection molding, form molding, and extrusion-blow molding (extruded foam polystyrene). The term “polystyrene” also includes clear or solid polystyrene which is known as “oriented polystyrene.”
Polystyrene means clean polystyrene plastic or foam materials such as those used for cups, plates, food trays, plant holders and packaging sometimes marked with SPI Code #6.

Examples of Polystyrene in a sentence

  • Addition polymers and their industrial application- Polystyrene, PVA, PVC, PAN, PMMA, Buna-S, Buna-N, Teflon.

  • Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation.

  • Click to access 2009.002 Expanded Polystyrene (Styrofoam) Administrative Policy.

  • The City of Hallandale Beach Administrative Policy 2009.002, Expanded Polystyrene Administrative Policy was approved by the City Commission during the April 18, 2018 by City Commission.

  • Polystyrene products shall meet American Society for Testing and Materials (ASTM) C578 91.


More Definitions of Polystyrene

Polystyrene means a synthetic polymer produced by polymerization of styrene monomer. Polystyrene includes both “Foam Polystyrene” and “Solid Polystyrene” as defined in this Bylaw. The International Resin Identification Code assigned to polystyrene materials is “6”. Polystyrene items may be identified by a "6" or "PS," either alone or in combination with other letters. The regulations and prohibitions relating to polystyrene in this bylaw are intended to apply regardless of the presence or absence of an International Resin Identification Code or other identifying marks on the item.
Polystyrene means and includes:
Polystyrene means a thermoplastic petrochemical material utilizing a styrene monomer and processed by various techniques such as fusion of polymer spheres (“expandable bead polystyrene”), injection molding, form molding, and extrusion-blow molding (“extruded foam polystyrene”), blown polystyrene and expanded and extruded foams (sometimes incorrectly called Styrofoam, a Dow Chemical Company trademarked form of polystyrene foam insulation). Polystyrene is generally used to make cups, bowls, plates, trays, clamshell containers, meat trays and egg cartons.
Polystyrene means and includes expanded polystyrene which is a thermoplastic
Polystyrene means blown Polystyrene (Polystyrene that has been expanded or blown using a gaseous blowing agent into a solid foam) and expanded and extruded forms, which are thermoplastic petrochemical materials utilizing a styrene monomer and processed by any number of techniques including but not limited to fusion of polymer spheres (expandable bead Polystyrene), injection molding, form molding, and extrusion blown molding (extruded foam Polystyrene), sometimes called Styrofoam, a Dow Chemical Co. trademarked form of Polystyrene foam. It bears the recycling number 6.
Polystyrene means a thermoplastic petrochemical material using the styrene monomer, including but not limited to rigid polystyrene or expanded polystyrene (Styrofoam™ and similar products).
Polystyrene means a thermoplastic petrochemical material utilizing the styrene monomer, including but not limited to polystyrene foam or expanded polystyrene, (sometimes incorrectly called Styrofoam™, a Dow Chemical Co. trademarked form of expanded polystyrene foam insulation) processed by any number of techniques, including but not limited to fusion of polymer spheres (expandable bead polystyrene), injection molding, foam molding, or extrusion- blow molding (extruded foam polystyrene), and clear or solid polystyrene (oriented polystyrene). The recycle code for polystyrene is “6” or “PS,” either alone or in combination with other letters.