Salicylic acid derivatives, the process for prepar

专利名称：Salicylic acid derivatives, the process for

preparing the same and the heat-sensitiverecording materials comprising thereof

发明人：Tanabe, Yoshimitsu,Kobayashi, Yuki,Otsuji,

Atsuo,Nakatsuka, Masakatsu,Hasegawa,Kiyoharu,Kikkawa, Kazuyoshi,Yamaguchi,Akihiro,Koike, Naomasa,Okumura, Fumio

申请号：EP92115647.7申请日：19920913公开号：EP0534257A1公开日：19930331

摘要：A heat-sensitive recording material comprising a color forming, electrondonating compound and a salicylic acid derivative represented by the formula(1): whereinX₁ and X₂ are a hydrogen atom, an alkyl group, an alkoxy group, an aralkyl group, an arylgroup or a halogen atom, Y₁ and Y₂ are an oxygen atom or a sulfur atom, R₁ is ahydrogen atom, an alkyl group, an aralkyl group or an aryl group , and R₂ is an alkylgroup, an alkenyl group, an aralkyl group or an aryl group, and/or a metal salt of thesalicylic acid derivative as an electron accepting compound, is disclosed.

申请人：MITSUI TOATSU CHEMICALS, Inc.,MITSUBISHI PAPER MILLS, LTD.

地址：2-5 Kasumigaseki 3-chome Chiyoda-Ku Tokyo 100 JP,4-2, Marunouchi 3-chomeChiyoda-ku Tokyo 100 JP

国籍：JP,JP

代理机构：Schüler, Horst, Dr.

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