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PolyCal
EC™ Calcium
Carbonate Concentrates for
Extrusion
Coating
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Significant
savings on raw material costs |
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Increased
productivity |
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Improved
performance |
Improve
Profitability, Productivity, and Performance
Replacing a
portion of the resin with a calcium carbonate concentrate
such as PolyCalTMEC can result in savings from $0.02 -
$0.06 per pound depending on percentage of concentrate
used.
Higher line
speeds, increased outputs, better adhesion, easier
converting, improved COF and printability, and better
barrier are among the many performance improvements that
are possible with the addition of PolyCalTMEC.
Product
Description
PolyCalTMEC is
76% of a fine ground surface treated CaCO3 in LDPE. If was
specifically formulated for use with the wide range of low
density extrusion coating resins currently used in this
demanding high temperature process. It has been blended
into the process at levels ranging from 5 – 30%,
depending on the needs of the application.
What
to Expect During Processing
PolyCalTMEC
concentrate can be added at levels from 5-30% via side
feeders at the hopper or via central blend stations No
changes in temperature profiles are required but optimized
performance while maintaining adhesion may be possible
with lower temperatures. Higher
outputs and line speeds are often realized.
Physical
Property Improvements
PolyCalTMEC
improves coating adhesion to a variety of substrates,
particularly flame-treated, clay-coated board without
primer coating. PolyCalTMEC also modifies the coating
surface to increase surface energy, improving print
quality. Improved sheet feeding and converting performance
are often realized in addition to higher seal strengths.
Mineral addition also improves barrier properties, reduces
both the coating WVTR and OTR.
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