The committee has
issued the permit in order to regulate the market and reduce the inflammation
of the PVC price given the massive growth in demand for the item.
Polyvinyl
chloride (/ˌpɒlivaɪnəl ˈklɔːraɪd/;[6] colloquial: polyvinyl, vinyl;[7] abbreviated:
PVC) is the world's third-most widely produced synthetic plastic polymer (after
polyethylene and polypropylene[8]). About 40 million tons of PVC are produced
each year.
Polyvinyl
chloride (PVC) comes in two basic forms: rigid (sometimes abbreviated as RPVC)
and flexible. The rigid form of PVC is used in construction for pipe and in
profile applications such as doors and windows. It is also used in making
bottles, non-food packaging, food-covering sheets, and cards (such as bank or
membership cards).
It can be made
softer and more flexible by the addition of plasticizers, the most widely used
being phthalates. In this form, it is also used in plumbing, electrical cable
insulation, imitation leather, flooring, signage, phonograph records, inflatable
products, and many applications where it replaces rubber. With cotton or linen,
it is used in the production of canvas.
Pure polyvinyl
chloride is a white, brittle solid. It is insoluble in alcohol but slightly
soluble in tetrahydrofuran.