| Product | Generic | Company |
| QAMAR | LLDPE | SPDC Ltd. |
| Qenos PE | HDPE, HDPE, HMW, HDPE, MMW, MDPE | Qenos Pty Ltd |
| Qenos PP | PP Copolymer, PP Homopolymer | Qenos Pty Ltd |
| Qilu HDPE | HDPE | Sinopec Qilu Petrochemical Company 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) Copolymer, Acetal (POM) Homopolymer, CPVC, ECTFE, HDPE, HMWPE, LDPE, Nylon 46, Nylon 6, Nylon 66, Nylon, Unspecified, PAI, PBI, PC, PEEK, PEI, PET, PP Copolymer, PP Homopolymer, 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. |
| Quattor EVA | EVA | Quattor Petroquímica |
| Quattor PE | HDPE, HDPE, HMW, LDPE | Quattor Petroquímica |
| Quattor PP | PP Homopolymer, PP Impact Copolymer, PP Random Copolymer | Quattor Petroquímica |
| Quattor® | HDPE, HDPE, HMW, LLDPE, LMDPE | Quattor Petroquímica |
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