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August 23, 2008

1 Min Read
Patented elastomer combats microbes and more

DMP_Elastoguard.gifA silver-based biocide provides skin-to-core protection from bacteria, fungi, and yeasts in new Elastoguard antimicrobial elastomers from Milliken Chemical Specialty Elastomers. According to company sources, the new materials also avoid problems with traditional antimicrobial additives based on organic biocides, such as leaching, diminished microbe suppression over time, degradation at processing temperatures greater than 250C, and unpleasant taste and odor.Instead of an additive, Elastoguard compounds contain a patented silver-NZP ion-exchange biocide within the elastomer matrix. Performance is enhanced over time by usage that exposes more of the odorless, tasteless biocide. The nonleaching, silver-based agent is heat stable to more than 800C, and works by slowly releasing silver ions, which are then exchanged for other ions in the environment, including microbes. As the microbes absorb the silver, they lose their ability to reproduce and grow.

Elastoguard is available in injection molding grades in formulations from natural rubber, EPDM, and NBR grades to high-performance fluoroelastomers from 40 to 90 Shore A. Potential uses include seals, gaskets, and O-rings for a variety of applications in medical, food and beverage, appliance, storage, sporting goods, and automotive markets.

Milliken Chemical Specialty Elastomers
Spartanburg, SC; (864) 503-6505

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