PolySept® A PORTFOLIO OF ANTIMICROBIAL MASTERBATCHES AND ADDITIVES
LENOIR, NORTH CAROLINA, U.S.A., January 21, 2005 --- In order to provide a wide range of antimicrobial solutions, PolyChem Alloy®, Inc. (PCA) has established a portfolio of antimicrobial masterbatches and additives to suit a vast array of application needs. Trade named PolySept®, the made-to-order masterbatches typically contain 10% - 50% of an antimicrobial agent formulated into a plastic resin such as PE, PP, PS, ABS, PA, PBT, and PC.
The material attributes of the PolySept® product line meets a wide range of processing requirements. PCA's antimicrobial masterbatches are thermally stable from 190o C to >400o C, thus allowing use in higher temperature resin systems, such as Nylons, Polycarbonates, and Polyesters. The resulting uniform, pelletized concentrate can be used as an additive masterbatch for a variety of molding and extrusion processes, simplifying or eliminating many handling and feeding issues associated with liquids or powder.
The PolySept® Portfolio is effective against gram positive (+ve), gram negative (-ve) bacteria and fungi. The selection of PolySept® L, Z or Ag depends on a specific end-use application.
PolySept® L is an organic based antimicrobial with a broad spectrum of inhibition that produces a renewed active surface due to migration of the active ingredient. It is processible up to 190°C, with a suggested active content level of 1.5% - 3.0%. PolySept® L is sold as a 100% active liquid or as a masterbatch in polyolefins.
PolySept® Z is an organic salt based, non-migratory antimicrobial with a broad spectrum of inhibition. It is processible up to 200°C, with a suggested active content level of 0.2% - 0.5%. PolySept® Z is sold as a 100% active powder or as a masterbatch for polyolefins, PVA, and styrenics.
PolySept® Ag is an inorganic based, non-migratory antimicrobial with a broad spectrum of inhibition. It is processible up to 500°C, with a suggested active content level of 0.5% - 3.0%. PolySept® Ag is sold as a 100% active powder or as a masterbatch for polyolefins, styrenics, and engineering resins.
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Applications for PolySept® antimicrobial products include medical devices, consumer goods, kitchen and bath appliances, paints and coatings, furniture, bedding, textiles, carpeting, films, and filtration. |
Mechanism of Action for PolySept® Biocides: PolySept® biocides act on microbial membranes to eliminate important ion gradient or gradients. Bacteria use these gradients to store energy, while fungi use them as the source of energy for nutrient transport.
Gram -ve Bacteria Cell Wall Simplified
Note: Gram+ve Bacteria Cell Wall lacks an Outer Membrane
A closer look at Bacteria and Fungi:
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Gram +ve Bacteria |
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MRSA |
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Streptococcus faecalis |
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Lactobacillus brevis |
Bacillus subtillis |
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Staphylococcus
aureus |
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| Gram -ve Bacteria | |||
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Escherichia
coli |
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Pseudomonas aeruginosa |  |
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Klebsiella pneumoniae |
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Salmonella typhimurium |
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Aureobasidium Pullulans | Aspergillus niger |
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Rhizopus stolonifer |
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Chaetomium globosum |
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Saccharomyces serevisiae |
Candida lbicans |
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PolySept® products are effective against a broad spectrum of bacteria, fungi, mold, mildew and MRSA. For example, PolySept® L, made with phosphate ester complex, will inhibit the growth of both gram positive (+ve), gram negative (-ve) bacteria, fungi, mold, mildew, and even dust mites. PolySept® products made with phosphate ester complex conform to EPA registration. Significant features include low water solubility, minimal off-gassing, low toxicity, and antistatic properties.
A key benefit of PolySept® is the low toxicity of the active biocide. These products are extremely environmentally friendly, containing no arsenic, no heavy metals, no halogens, no phenolics, no formaldehydes, and no insecticides.
Significant characteristics of PCA antimicrobial compounds are their increased levels of Log kill (~3) and large surface area (particle size in microns), which enhances their effectiveness against a myriad of harmful microorganisms, mold, and mildew.
Why should a biocide be added to commercial Products? When incorporated into plastics, PolySept® inhibits the growth of bacteria and fungi. The net result is an aesthetically clean part with no acrid or undesirable smell. Below is a list showing advantages realized when PolySept® is incorporated into plastic parts.
GSA Requirements
Odor Control
Air Quality…Buildings, Aircraft, etc.
Cosmetic Advantage
Structural Advantage
Bioefficacy Standards and Test Methods include ASTM G2180, ASTM G2190, BGV Approved as registered under the EU Biocide Directive, and JIS Z2911.
Headquartered in Lenoir, North Carolina, U.S.A., PolyChem Alloy®, Inc. is a technology based manufacturer of additives and chemical masterbatches and compounds. At PolyChem Alloy®, Inc. complying with six sigma protocol is the norm rather than the exception.
READER INQUIRY INFORMATION: Address all US mail inquiries to PolyChem Alloy®, Inc., 240 Polychem Ct., Lenoir, NC 28645, U.S.A. Telephone +828/754-7570. Fax: +828/754-9772. email: customerservice@polychemalloy.com. Address all European mail inquiries to PolyChem Alloy® - Europe, Ltd., 27 Chevening Road, Chipstead Sevenoaks, Kent TN13 2RZ ,United Kingdom (GB). Telephone 0044 (0) 1732 463866. email: rmcgregor@polychemalloy.com.