Page 33 - Plastics News February 2018

FEATURES

Emery Oleochemicals Introduces New Portfolio of Additives for C-PVC

The broad product portfolio provide best results specifically for C-PVC applications.

mery Oleochemicals, a global specialty chemical
Emanufacturer, has developed a portfolio of additives
for chlorinated polyvinyl chloride (C-PVC).
C-PVC is significantly more flexible and withstands higher
temperatures than standard PVC. While standard PVC loses
its form stability at temperatures of 60 – 80 °C, C-PVC
can withstand temperatures up to 100 – 120 °C. C-PVC is
also significantly more ductile and fracture-resistant than
PVC, which makes it suitable to replace corrosive metal be significantly improved using LOXIOL® 2307 (Figure 2).
piping systems. Therefore, producers of tubes and fittings To meet the market’s unique requirements, Emery
Oleochemicals has developed a broad product portfolio
specifically for C-PVC applications. LOXIOL® 2307, an
external lubricant, has a high dropping point of 80 - 90
°C, which improves the handling of the product. It is
thermal stable in a wide temperature range. LOXIOL®
2307 is suited for extrusion of rigid PVC and C-PVC pipes,
window profiles, fittings in tin, calcium/zinc, and calcium-
organic stabilized formulations. It improves the plate-
out behavior and therefore, reduces the cleaning cycle
time. With this external lubricant, the fusion time can be
adjusted and it also improves the dynamic heat stability.
By adding oxidized PE-wax, the dynamic heat stability of
the compound can be increased. LOXIOL® 2307 has no
impact on the color of the final product. Therefore, it is
ideally suited for white products. Furthermore, it improves
the surface properties of the end product.
For some applications, additives with both internal and
external lubricating effects might be required. LOXIOL®
for hot and cold water distribution prefer to use C-PVC. 2308 is a neutral ester wax that suits this purpose. It
improves the flow properties of the polymer melt and
Just as for standard PVC, additives are necessary to process prevents it from sticking to the mold surface. LOXIOL®
C-PVC. However, additives specifically designed for C-PVC 2308 has food contact approval making it well suited
can preserve and even improve the desired properties for residential water supply systems. As a mold release
of this material. To preserve a high heat resistance, it is agent, LOXIOL® 2309 is a useful supplement, especially
essential to choose additives that do not influence the for injection molding of fittings. Using both of these
Vicat softening point. At the same time, friction must additives increases the productivity and reduces the cost
be reduced to improve the processability of the polymer for additional cleaning cycles.
melt. Consequently, a higher dosage of external lubricant
improves the processability without reducing the Vicat LOXIOL® 2310 is a lubricant developed to prevent plate-
softening point. While the static heat stability of C-PVC out tendency and to reduce the adhesiveness of the
is similar to standard PVC, the dynamic heat stability can polymer melt. It has a high dropping point which improves

33 Feb ruar y 2018 Plastics News