Patent ID: 7060393
Filing Date: 2006-06-13
Classification: G03H,G11B

Abstract:
1. An optical recording medium comprising a recording layer containing a charge-generating material capable of generating an electron and a hole by light irradiation, a charge-transport material enabling at least said hole to be transported to isolate said electron and said hole, and a trapping material retaining said hole, the optical characteristics of said recording layer being changed in accordance with changes in spatial distribution of said electron and said hole, and said trapping material being a polymer having, at a side chain thereof, a group represented by the following general formaula (A′): wherein CB1 is a conjugated system; and R and wherein a residual group having electron donativity and being other than said nitrogen-containing heterocyclic group is at least one selected from the group consisting of allyl alkane; nitrogen-containing cyclic compound; oxygen-containing compound; sulfur-containing compound; and the following groups: wherein R