<p>An optical recording element in which information can be recorded and read directly afterwards by means of laser light, comprises a substrate having on at least one side a recording layer including an effective amount of one or more compounds selected from a certain class of trimethine and longer chain aryl polymethine dyes associated with specific counterions.</p>
申请公布号
EP0131032(B1)
申请公布日期
1987.07.08
申请号
EP19840900466
申请日期
1983.12.22
申请人
MINNESOTA MINING AND MANUFACTURING COMPANY
发明人
BELL, VIVIEN, L. MINNESOTA 3M RESEARCH LTD.;FERGUSON, IAN, A. MINNESOTA 3M RESEARCH LTD.;WEATHERLEY, MARK, J. MINNESOTA 3M RESEARCH LTD.