发明授权
- 专利标题: Tetraindolyl-heptamethine derivatives
- 专利标题(中): 四氢吡喃衍生物衍生物
-
申请号: US414060申请日: 1989-09-28
-
公开(公告)号: US5118814A公开(公告)日: 1992-06-02
- 发明人: Horst Berneth , Hubertus Psaar , Gunter Klug
- 申请人: Horst Berneth , Hubertus Psaar , Gunter Klug
- 申请人地址: DEX Leverkusen
- 专利权人: Bayer Aktiengesellschaft
- 当前专利权人: Bayer Aktiengesellschaft
- 当前专利权人地址: DEX Leverkusen
- 优先权: DEX3833997 19881006
- 主分类号: B41M5/132
- IPC分类号: B41M5/132 ; B41M5/136 ; B41M5/323 ; C07D209/10 ; C07D209/12 ; C07D209/14 ; C07D209/22 ; C07D209/24 ; C07D209/48 ; C07D401/14 ; C07D403/14 ; C07D405/14 ; C07D413/14 ; C07D417/14 ; C07D521/00
摘要:
Tetraindolyl-heptamethine derivatives of the isomeric formulae ##STR1## in which A, B, D and E denote ##STR2## and may be identical to or different from one another, and the other symbols have the meaning indicated in the description, are used in pressure-sensitive and heat-sensitive recording materials.
信息查询