Abstract: The convertible child-resistant vial comprises a container having and aperture and a peripheral wall and being provided with a first connection element in the form of contiguous locking and freeing housings provided in a collar extending from the peripheral wall; and a cap hingedly mounted to the container integrally thereof and including a second connection element for cooperating with the first connection element to close the vial in a child safe-manner. The second connection element is in the form of a tooth which is easily removable to convert the child-resistant vial into a non-child-resistant vial. The vial can be molded in a one piece body. The integral mounting of the cap to the container allows easing the distribution and handling of the vial.

Abstract: A process for the polymerization of vinyl chloride which comprises adding to an aqueous dispersion of vinyl chloride polymer prepared by a suspension polymerization process, optionally containing vinyl chloride monomer, or a bulk polymerization process the additives necessary for emulsion polymerization, then effecting the polymerization of the vinyl chloride monomer present in the reactor prior to introducing the emulsion polymerization additives and/or vinyl chloride monomer added after the introduction of these additives.Vinyl chloride polymers comprising vinyl chloride polymer particles produced by suspension or bulk polymerization having vinyl chloride granules agglutinated thereon said granules having the dimensions of vinyl chloride granules obtained by conventional emulsion polymerization.