| Product | Generic | Company |
| QAMAR | LLDPE | SPDC Ltd. |
| Qenos PE | HDPE, HDPE, HMW, HDPE, MMW, MDPE | Qenos Pty Ltd |
| Qenos PP | PP Copoly, PP Homopoly | Qenos Pty Ltd |
| QR Resin | ABS, ABS+PC, ASA, Nylon 46, Nylon 6, Nylon 66, PBT, PC, PC Alloy, PC+PBT, PC+PET, PC+Polyester, PEI, PEI+PC, PET, PP, Unspecified, PPE+Nylon 66, PPE+PS, PPE+PS+Nylon, TPO (POE) | QTR, Inc. |
| Quadrant EPP | Acetal (POM) Copoly, Acetal (POM) Homopoly, CPVC, ECTFE, HDPE, HMWPE, LDPE, Nylon 46, Nylon 6, Nylon 66, Nylon, Unspecified, PAI, PBI, PC, PEEK, PEI, PET, PP Copoly, PP Homopoly, PPE, PPS, PPSU, PSU, PTFE, PVC, Unspecified, PVDF, TP, Unspecified, UHMWPE | Quadrant Engineering Plastic Products |
| Quantum Composites | Phenolic, PI, TP, Polyester, TS, TS, Unspecified, Vinyl Ester | Quantum Composites Inc. |
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