Innovative Polyurethane Materials for Use in Digital Imaging Equipment

摘要

A family of high density (6-10 lbs/cu.ft.) free rise polyurethane foams has been created as an alternative to more traditional siloxane, epichlorohydrin elastomer and other elastomer-based polymers in laser printer roller applications. A wide range of resistivities, from 10~5 to 10~9 ohms, can be achieved through patented, innovative modifications to the polymer morphology. Such a low resistivity is very attractive for many digital imaging roller applications. In addition, many of these products exhibit a stable resistivity profile under voltage over extended time.