| 摘要 |
<p>Disclosed are electret compositions with outstanding thermal and charge stability. The electret compositions comprise a melt blend of a thermoplastic polymer and at least one hindered hydroxylamine ester compounds that comprise at least one moiety of the formula (I) Where Ra' is a monoacyl or diacyl radical; R1-R4 are each C1-C6alkyl; and R5 and R6 are each, independently of one another, hydrogen, C1-C6alkyl or C6-C10aryl; or R5 and R6 are together oxygen. The melt blends are subjected to an electret treatment, for example, a corona treatment.</p> |
