Novel process removes polymer impurities

PolyClean Technologies is offering a novel resin purification processing service claimed to significantly reduce the level of ionic impurities in a wide range of polymers.

PolyClean Technologies is offering a novel resin purification processing service claimed to significantly reduce the level of ionic impurities in a wide range of polymers.

Reductions by up to 95% have been achieved, bringing residue levels from a few hundred parts per billion down to several parts per billion.

According to Harish Sangani, President, PolyClean Technologies: "The cleanliness and purity requirements for polymers in critical applications continue to become more demanding".

"This is a challenge for resin suppliers who must find economical ways to reduce the level of residues in their virgin polymers and compounds".

"It also creates a challenge for moulders and manufacturers to find suppliers willing to meet these requirements for what may often be a small volume niche application".

PolyClean Technologies resin purification service is a unique, proprietary process that provides an economical solution.

"Processing methods can be adjusted to achieve an optimum balance between purity and processing cost", explains Sangani.

"By using our services resin suppliers can easily create a high purity grade of their standard products, allowing them to focus on their core strengths of material formulations and efficient production while still meeting their customers cleanliness specifications".

For manufacturers, the service makes it possible to choose from a broader (and possibly lower cost) array of materials that meet overall performance criteria.

"The purification service can be performed on virgin pellets, materials accidentally contaminated by process upsets or improper storage and handling, and regrind that customers want to recover", explains Sangani.

The proprietary solid state purification process does not affect the performance properties of the polymer.

"Because we have a high degree of flexibility in the production process, we can handle lot sizes from a few hundred pounds up to multi-truckload quantities", he says.

Smaller quantities can be processed on a lab-scale system, and initial evaluation trials are offered at no charge.

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