Teijin Drops New Aramid Development | Chemical & Engineering News
Volume 93 Issue 38 | p. 20 | Concentrates
Issue Date: September 28, 2015

Teijin Drops New Aramid Development

Department: Business
Keywords: toxicity, monomer, aramid fiber

Teijin Aramid says it is halting a research program to develop and commercialize an aramid fiber variant with improved bullet resistance because of concerns over a key monomer’s toxicity. The monomer—a diaminophenylbenzimidazole—could be carcinogenic to workers exposed during fiber production, the Japanese firm says. The firm also found that the monomer could harm kidneys at low doses and could adversely affect reproduction. Teijin says it will refocus its research effort on other aramid fiber developments.

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