Barium/Cadmium
Carboxylates are among the oldest PVC stabilizers.
Liquid
Barium/Cadmium stabilizers with less than 5% cadmium content
were developed more than 30 years ago for the stabilization
of plasticized PVC They contained a large amount of solvent.
At the beginning of the 1970s it was possible to manufacture
self-lubricating liquid Ba/Cd stabilizers. At the same time,
by using long - Chain fatty acids it was possible to reduce
the solvent content. These stabilizers often contain a small
amount of Zinc compound to give an improvement in initial color.
Furthermore, addition of Zinc carboxylate lowers the sensitivity
to discoloration caused by the sulphur-containing substances
in the atmosphere. In comparison with the first generation stabilizers,
these new stabilizers have improved plate out behavior.
Liquid
Ba-Cd and Ba-Cd-Zn are widely used in Extrusion, Calendaring
and Injection molding of flexible & semi-rigid PVC as well
as for various kinds of plastisol processing. Decorative furniture
and agricultural films are manufactured by calendaring, solid
articles and tubing by extrusion, and sandals and shoe-soles
by injection molding and top coating of floor covering by plastisol
processing.