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In 1912, Fritz Klatte discovered the basic principles
for the industrial production of PVC-U/vinyl, a process which
can be summarised in five steps: |
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1.
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Electrolysis(2) of salt(1) produces chlorine(3). |
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Ethylene (6) is obtained after refining(5) the
oil(4) and cracking naphtha. |
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Chemical synthesis(7) of these two elements produces
the 'monomer', vinylchloride(8), in gaseous form. |
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Polymerisation(9) of this monomer structure produces
the polymer, poly-vinylchloride, or PVC-U; an inert powder. |
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The PVC-U resin(10) is mixed (compounded) with
various additives(11) in order to form variations with different
properties. The result is a fairly fine powder or granules(12). |
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