| Product | Generic | Company |
| M. Holland | ABS, ABS+PC, HDPE, HDPE Copolymer, LDPE, LLDPE, PC, PP Homopoly, PP Impact Copoly, PP Random Copoly, PS (GPPS), PS (HIPS), PS (Specialty), SAN | M. Holland Company |
| M.A. Industries PE | PE, Unspecified | M.A. Industries, Inc. |
| M.A. Industries PP | PP, Unspecified | M.A. Industries, Inc. |
| Mablex | ABS+PC | Ravago Group |
| Machine Cast | TSU | BJB Enterprises, Inc. |
| Magnablend® | Nylon 6, PPS | TP Composites, Inc. |
| Magnobond | Epoxy | Magnolia Plastics, Inc. |
| MAGNUM™ | ABS | Dow Plastics |
| Makroblend® | PC Alloy, PC+PBT, PC+PET | Bayer MaterialScience AG
Bayer MaterialScience LLC
|
| Makrofol® | PC | Bayer MaterialScience LLC |
| Makrolon® | PC, PC+PET | Bayer MaterialScience AG
Bayer MaterialScience LLC
|
| MALECCA | ABS | DENKA |
| Malen | LDPE | LyondellBasell Industries |
| Malon | Polyester, TP | M.A. Industries, Inc. |
| Mamax | PET | M.A. Industries, Inc. |
| Manner Flexible PVC | PVC, Flexible | Manner Plastics, L.P. |
| Mapex | Nylon 6, Nylon 66, Nylon 66/6 | Ginar Technology Co., LTD. |
| MarFlex™ HiD® | HDPE | Chevron Phillips Chemical Company LLC |
| MarFlex™ PE | HDPE, LDPE, LDPE+HDPE, LLDPE, MDPE, PE, Unspecified | Chevron Phillips Chemical Company LLC |
| Marfran® | SEBS, TPE | VTC TPE Group |
| Marlex® | HDPE, HDPE Copolymer, HDPE, HMW, LDPE, LLDPE, MDPE, PE Copolymer, PE, Unspecified | Chevron Phillips Chemical Company LLC |
| Marlex® HiD® | HDPE, HDPE Copolymer | Chevron Phillips Chemical Company LLC |
| Marlex® PP | PP Copoly, PP Homopoly, PP Impact Copoly, PP Random Copoly, PP, Unspecified | Phillips Sumika Polypropylene Company |
| Marlex® TPO | Polyolefin, Unspecified | Phillips Sumika Polypropylene Company |
| Marvel™ | LLDPE, PE Copolymer, PE, Unspecified | SCG Chemicals Co., Ltd. |
| MASPLAS | HDPE, MDPE, PP Copoly | Lavergne Group |
| MASPOLENE | PP Copoly, PP Homopoly | Lavergne Group |
| Mater-Bi | Biodeg Syn Poly | Novamont S.p.A. |
| Matrixx | ABS+PC, Nylon 6, Nylon 66, PBT, PBT Alloy, PC, PE, Unspecified, PET, PP Copoly, PP, Unspecified | The Matrixx Group, Inc. |
| MAXAMID™ | Nylon 6, Nylon 66 | Pier One Polymers, Inc. |
| Maxiglas® | Acrylic (PMMA) | Shanghai Jing Qi Polymer Science Co. (SJPS) |
| Maxxam™ | PP Copoly, PP Homopoly, PP, Unspecified | PolyOne Corporation |
| Maxxam™ FR | HDPE, LDPE, PE, Unspecified, PP, Unspecified | PolyOne Corporation |
| McCann PP | PP Copoly, PP Homopoly | McCann Plastics Inc. |
| McCann PS | PS Alloy | McCann Plastics Inc. |
| MDE Compounds | ABS, ABS+Nylon, ABS+PC, Acetal (POM) Copoly, Acetal (POM) Homopoly, Nylon 6, Nylon 612, Nylon 66, Nylon 66/6, Nylon, Unspecified, PBT, PBT Alloy, PBT+PET, PC, PC+PBT, PC+PET, PET, PP, Unspecified, PPS, TPEE | Michael Day Enterprises |
| MDI ABS | ABS+SAN | Modern Dispersions, Inc. |
| MDI EEA | EEA | Modern Dispersions, Inc. |
| MDI EMA | EMA | Modern Dispersions, Inc. |
| MDI EVA | EVA | Modern Dispersions, Inc. |
| MDI PA | Nylon 6 | Modern Dispersions, Inc. |
| MDI PC | PC | Modern Dispersions, Inc. |
| MDI PE | HDPE, LDPE, LDPE+LLDPE, LLDPE | Modern Dispersions, Inc. |
| MDI PET | PET | Modern Dispersions, Inc. |
| MDI PP | PP Homopoly, PP, Unspecified | Modern Dispersions, Inc. |
| MDI PS | PS (GPPS), PS (HIPS) | Modern Dispersions, Inc. |
| Mediprene™ | SEBS, TPE, TPO (POE) | VTC TPE Group |
| megol® | SEBS | API SpA |
| MEGOLON™ | TP, Unspecified | AlphaGary |
| Meldin® | PEEK, PEI, PI, TS, PPS Alloy | Saint Gobain Performance Plastics |
| Melinar® | PET | Artenius UK Ltd |
| Melinex® | Polyester, TP | DuPont Packaging & Industrial Polymers |
| Melos PA6 | Nylon 6 | Melos GmbH |
| Melos PA6.6 | Nylon 66 | Melos GmbH |
| Melos PBT | PBT, PBT+PET, PC+PBT | Melos GmbH |
| Melos PET | PET | Melos GmbH |
| Melos™ | TPE | Melos GmbH |
| Melthene® -G | EVA | TOSOH Corporation |
| Melthene® -H | EVA | TOSOH Corporation |
| Melthene® -M | Polyolefin, Unspecified | TOSOH Corporation |
| Menzolit® | Polyester, TS | Menzolit Ltd (UK) |
| METALCAP | HDPE, PP Copoly | Polyram Ram-On Industries |
| Metapol® | mLLDPE | Rio Polimeros S.A. |
| Metocene | PP Copoly, PP Homopoly | LyondellBasell Industries |
| Metton® LMR | DCPD | Metton America |
| Microthene® | EVA, HDPE, LDPE, LLDPE, LMDPE | LyondellBasell Industries |
| Microthene® F | EVA, HDPE, LDPE, PP, Unspecified | LyondellBasell Industries |
| Microthene® G | EVA, LDPE | LyondellBasell Industries |
| MIDILENA I | LDPE | ROMPETROL PETROCHEMICALS S.R.L. |
| MIDILENA III | PP Homopoly | ROMPETROL PETROCHEMICALS S.R.L. |
| MINDEL® | PSU, PSU Alloy, PSU+ABS | Solvay Advanced Polymers |
| MIPELON™ | UHMWPE | Mitsui Chemicals America, Inc. |
| Miraepol | PP Impact Copoly | LyondellBasell Industries |
| Miramid® | Nylon 6, Nylon 66, Nylon 66/6 | BASF Leuna GmbH |
| MIRASON™ | LDPE | Mitsui Chemicals, Inc. |
| Mirathen | PE, Unspecified | Dow Plastics |
| Mirel™ | Polyester, TP | Telles™ |
| MIRREX® | PVC, Rigid, PVC, Unspecified | VPI, LLC |
| Modified Plastics | Nylon 66, PE, Unspecified, PP, Unspecified, TP, Unspecified | Modified Plastics, Inc. |
| Mono-Sol® | MHPC, PVOH | Chris Craft Industrial Products, Inc. |
| Monprene® | TPE | Teknor Apex Company |
| MonTor Nylon | Nylon 6, Nylon 610, Nylon 66, Nylon, Unspecified | Toray Resin Company |
| Moplen | PP Copoly, PP Homopoly, PP Impact Copoly, PP Random Copoly, PP, High Crystal, PP, HMS, PP, Unspecified, TPU, Unspecified | LyondellBasell Industries
PolyMirae
|
| MORETEC® | LLDPE | Prime Polymer Co., Ltd. |
| MOSTEN | PP Copoly, PP Homopoly, PP Random Copoly, PP, Unspecified | CHEMOPETROL, a.s. - UNIPETROL GROUP |
| mPact™ | LLDPE, MDPE | Chevron Phillips Chemical Company LLC |
| Muehlstein Compounds | EVA, HDPE, LDPE, LLDPE, LMDPE, MDPE, PE, Unspecified, Polyolefin, Unspecified, PP Copoly, PP Homopoly, PP Impact Copoly | Muehlstein Compounded Products |
| Multibatch® | LDPE | Multibase, A Dow Corning Company |
| Multi-Flam™ | LDPE, PP, Unspecified | Multibase, A Dow Corning Company |
| Multi-Flex® TEA | TPE | Multibase, A Dow Corning Company |
| Multi-Flex® TPE | TPE | Multibase, A Dow Corning Company |
| Multi-Flex® TPO | TPO (POE) | Multibase, A Dow Corning Company |
| Multilon® | ABS+PC | Teijin Kasei America, Inc. (Teijin Chemicals) |
| Multi-Pro® | HDPE, PP, Unspecified | Multibase, A Dow Corning Company |
| Multiuse Leostomer® | TPU, Unspecified | Riken Technos Corp. |
| Mxsite | PE, Unspecified | Westlake Chemical Corporation |
| Mxsten | Plastomer | Westlake Chemical Corporation |
| Mylar® | PET | DuPont Packaging & Industrial Polymers |
| Mytex® | PP Impact Copoly, PP, High Crystal, PP, Unspecified | Mytex Polymers |
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