B
| Tradename | Material | Manufacturer |
| Badadur | PBT | Bada AG |
| Badaflex | TPE-S | Bada AG |
| Badalac | ABS, ABS/PA, ABS/PC | Bada AG |
| Badamid | PA | Bada AG |
| Badaprene | PP/EPDM | Bada AG |
| BAK | Biodegradable polyester | Bayer MaterialScience |
| Bangkok | PET | Bangkok Polyester Public Co., Ltd. |
| Bapolan | PS, SAN, ABS | Bamberger Polymers |
| Bapolene | PP, PE | Bamberger Polymers |
| Barex | Acrylonitrile copolymer | Ineos USA LLC |
| Barrialon | Barrier resin | Asahi Kasei |
| BasicPet | PET | La Seda De Barcelona |
| Bayblend | PC/ABS | Bayer MaterialScience |
| Bayco | PET | Bayer MaterialScience |
| Baydur | Structural foam PUR RIM | Bayer MaterialScience |
| Bayfill | PU foam | Bayer MaterialScience |
| Bayfol | PC/PBT | Bayer MaterialScience |
| Baymod | EVM | Lanxess |
| Bayon | PVF antistatic | Kureha Chemical Industry Co. |
| Baypren | CR | Lanxess |
| Baytron | Inherently conductive polymers | Bayer MaterialScience |
| Baytubes | Carbon nanotubes | Bayer MaterialScience |
| Bayvision | PC | Bayer MaterialScience |
| Bearee | PPS | NTN Engineering Plastics |
| Beetle | PBT, PET | Teknor Apex |
| Beetle PA | PA 6, PA 66 | Teknor Apex |
| Bellac | PMMA | Belland |
| BellEx | PMMA | Belland |
| BellStx | PMMA | Belland |
| BellTuff | PMMA | Belland |
| BellOasis | PMMA fiber | Teijin Ltd. |
| Benvic | PVC | Solvay Benvic |
| Bergadur | PBT | PolyOne |
| Bergaflex | TPE-S | PolyOne |
| Bergaform | POM | PolyOne |
| Bergamid | PA | PolyOne |
| Bergaprop | PP | KP Bergmann |
| Bestdur | PBT/PET | Triesa Plastics |
| Bestnyl | PA | Triesa Plastics |
| Bestpolux | PC/ABS, PC/PET | Triesa Plastics |
| Bestpom | POM | Triesa Plastics |
| Bestran | PP | Triesa Plastics |
| Betafoam | PU foam | Dow Chemical |
| Bexloy | Ionomer | DuPont |
| Bicor | Oriented PP film | ExxonMobil Chemical |
| Bioceres | PLA | FuturaMat |
| Bioceta | Biodegradable CA | Mazzucchelli |
| Bio-Flex | PLA | FKur Kunststoff GmbH |
| Biograde | Biodegradable cellulose | FKur Kunststoff GmbH |
| Biogreen | Biopolymer | Mitsubishi Gas Chemical Company |
| Biolice | Biodegradable polymer | Limagrain Cereales Ingredients |
| Biomax | Biodegradable PET | DuPont |
| BiomeClear | PLA | Biome Bioplastics |
| Biomer | PolyHydroxyButyric acid | Biomer Technology |
| Bionate | Shape memory PC/Urethane | The Polymer Technology Group |
| Bionelle | Biopolymer | The Polymer Technology Group |
| Biopar | PLA | BIOP Biopolymer Technologies AG |
| Biophan | PLA film | Trespaphan GmbH |
| Bioplast | PLA | Biotec GmbH |
| Biopol | PHA (biopolyester) | Metabolix |
| Biopropylene | PLA | Cereplast Inc. |
| BioSpan | Shape memory PU | The Polymer Technology Group |
| BioSteel | Synthetic spider silk fiber | Nexia Biotechnologies |
| Bipex | PBT | Ginar Technology Co. Ltd. |
| Blendfor | PC/ABS | 7So.F.Ter S.p.A. |
| Bluestar | POM | 7Shanghai Blue Star Chemical Materials Factory |
| Boltaron | PVC, PMMA/PVC sheet | Boltaron Performance Products |
| Bonset | PET, PS, PVC | C.I. Kasei Co., Ltd. |
| Boracarby | PC | Nylonbor Sp. z o.o. |
| Boracetale | POM | Nylonbor Sp. z o.o. |
| Boraflony | PTFE, PVDF | Nylonbor Sp. z o.o. |
| Boraleny | PE, PP | Nylonbor Sp. z o.o. |
| Boralyte | PET | Nylonbor Sp. z o.o. |
| Boramidy | PA 6, PA 12 | Nylonbor Sp. z o.o. |
| Borapeeki | PEEK | Nylonbor Sp. z o.o. |
| Borapheny | PPE | Nylonbor Sp. z o.o. |
| Borcoat | Bimodal HDPE | Borealis |
| Borcom | Micro-composite PP | Borealis |
| Borpact | Clarified PP | Borealis |
| Borplus | LLDPE | Borealis |
| Borecene | Rotomolding PE | Borealis |
| Bormod | PP | Borealis |
| Borotron | HDPE | Quadrant Engineering Plastic |
| Borstar | LLDPE, LDPE | Borealis |
| Bralen | LDPE | Slovnaft Petrochemicals |
| Braskem | LDPE, LLDPE, PP, PET | Braskem |
| Bras-Tec | PP | Braskem |
| Bripet | PET | Brilen |
| BST | PBT | Sinopec Yizheng Chemical Fibre Co. Ltd. |
| Bulex | NBR | Lukoil Bulgaria Ltd |
| Bulfast | PUR foam | Eurofoam |
| Bulksam | High heat ABS | UMG ABS Ltd. |
| Bulpren | PUR | Eurofoam |
| Buna | E-SBR | Lanxess |
| Buplen | PP | Lukoil Bulgaria Ltd |
| Bustren | PS | Lukoil Bulgaria Ltd |
| Butaclor | CR, CR latice | Polimeri Europa |
| Bynel | LDPE, PP | DuPont |
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