21. Examples of commodity plastics are polyethylene, polypropylene, polystyrene, polyvinyl chloride , polymethyl methacrylate and more. 22. Molecules of vinyl chloride monomers combine to make long chain molecules of polyvinyl chloride . 23. The primary ingredient in Sculpey is polyvinyl chloride , augmented with fillers, plasticizers and colorants. 24. Originally made from latex rubber, most modern endotracheal tubes today are constructed of polyvinyl chloride . 25. A common material which provides these is polyvinyl chloride . 26. Polyvinyl chloride ( PVC ) is widely used, inexpensive, and annual production quantities are large.27. The company also manufactures polyvinyl chloride ( PVC ) sheets for roofing, signage and interiors. 28. PVC ( polyvinyl chloride ) plastic does not decompose and gives off toxins when burned. 29. It can act as UV stabilizer for polyvinyl chloride . 30. PCBs readily penetrate skin, PVC ( polyvinyl chloride ), and latex ( natural rubber ).