The vinyl is, according to IUPAC (International Union off Pure and Applied Chemistry), the other name which is given to ethényle of following developed formula:

H H | | C=C-R | H

( where R is the remainder of the carbonaceous chain to which the alkyl " vinyle" is attached).

The Polychlorure of vinyl is a plastic very much used. It is obtained by the polymerization of vinyl chloride.

The chloride vinyl is a colorless Gaz prepared starting from the Acétylène, likely to undergo a polymerization under the action of the light or of various catalysts, used in the industry of the plastics, in organic synthesis or like cooling agent.

H Cl \/ C = C /\ H H

R represents a Hydrocarbure or a Halogène.

The most known applications are those of the Disque vinyl or like elastic synthetic floor covering, composed of several layers.