专利名称：Thermal image transfer recording medium发明人：Shuhei Shiraishi,Shigeyuki Harada申请号：US07/614202申请日：19901116公开号：US05260139A公开日：19931109
摘要：A thermal image transfer recording medium is disclosed, which comprises asupport; a releasing layer formed on the support, comprising a wax component; and athermal image transfer layer formed on the releasing layer, comprising a copolymerprepared from an alkylmethacrylate and a (meth)acrylonitrile, optionally in additionthereto a vinyl monomer, with a glass transition temperature of 30° C. or more, and acoloring agent, the thermal image transfer layer having fine cracks having a length of 0.8to 8 &mgr;m with the number thereof being 25 to 100 per 1000 &mgr;m.sup.2 on thesurface thereof. In this recording medium, the thermal image transfer layer may furthercomprise a crosslinked acrylic resin with a glass transition temperature of 10° C. or moreand a number average molecular weight of 1,000, 000 or more. Furthermore, an auxiliarythermal image transfer layer comprising a thermoplastic resin with a glass transitiontemperature of 30° C. or more may also be interposed between the releasing layer andthe thermal image transfer layer.
申请人：RICOH COMPANY, LTD.
代理机构：Oblon, Spivak, McClelland, Maier & Neustadt
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