| Product | Generic | Company |
| Jackdaw ABS | ABS | Jackdaw Polymers |
| Jackdaw ABS/PC | ABS+PC | Jackdaw Polymers |
| Jackdaw Nylon | Nylon 6, Nylon 66 | Jackdaw Polymers |
| Jackdaw PC | PC | Jackdaw Polymers |
| Jackdaw PLA | PLA | Jackdaw Polymers |
| Jackdaw PP | PP Homopoly, PP, Unspecified | Jackdaw Polymers |
| Jamplast | ABS, ABS+PC, Acetal (POM) Homopoly, CPE, EVA, HDPE, HMW, Nylon 66, PC, PLA, PPE+PS, PS (GPPS), PS (HIPS), SAN, SPS, TPU-Polyether | Jamplast, Inc. |
| Jazz® | PP, Unspecified | PolyPacific Pty. Ltd. |
| J-Bond™ | TPE | Newport Elastomers |
| JER Envirotech™ | PP, Unspecified | JER Envirotech Ltd. |
| J-Flex™ | SEBS, TPE | Newport Elastomers |
| J-Last™ | SBS | Newport Elastomers |
| J-Prene™ | TPV | Newport Elastomers |
| J-REX EVA | EVA | Japan Polyolefins Co., Ltd. (JPO) |
| J-REX HD | HDPE | Japan Polyolefins Co., Ltd. (JPO) |
| J-REX LD | LDPE | Japan Polyolefins Co., Ltd. (JPO) |
| J-REX LL | LLDPE | Japan Polyolefins Co., Ltd. (JPO) |
| J-Soft™ | SEBS | Newport Elastomers |
| JSR EPR | EPDM, EPM | JSR Corporation |
| Juner | Nylon 6, Nylon 66, Nylon 66+ABS, PBT, PP, Unspecified | Zhejiang Juner Materials Co., Ltd. |
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