Polyvinyl Chloride  (PVC)  is a  linear  thermoplastic  resin produced
by polymerization of vinyl chloride monomer. Due to the difference
of  raw materials,  there are  two methods of  synthesizing  vinyl
chloride monomer  - calcium carbide process and petroleum
process.   PVC  adopts  two  suspension  process, respectivel
from Japanese Shin-Etsu   Chemical Company and American Oxy
Vinyls Company.  The  product has  good chemical   corrosion
  resistance, excellent electrical  insulation property and  fine
chemical stability. With high chlorine content, the material has
good  fire  retardance and self-extinguishing properties. PVC
is easy  to process by extrusion,  injection molding,
 
calendering,
 blow molding, compressing, cast moulding and thermal
molding, etc. 
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Applications
PVC is one of the most widely used thermoplastic resins. It can be
used  to make products with high hardness and strength, such as
pipes and fittings, profiled doors, windows and packaging sheets.
It can also make soft products, such as  films, sheets, electrical
wires and cables, ?oorboards and synthetic leather, by addition of
plasticizers.