Title:
NOVEL COLOR FORMER AND RECORDING MATERIAL
Document Type and Number:
WIPO Patent Application WO/2001/066515
Kind Code:
A1
Abstract:
A urea-urethane compound represented by the following formula; a process for producing the compound; a color developer comprising the urea-urethane compound; and a color former containing a colorless or light-colored leuco dye. (In the formula, R represents a residue of an aliphatic compound, etc.; and A¿1? and A¿2? each represents an optionally substituted residue of an aromatic compound, etc.)
Inventors:
KABASHIMA KAZUO
KOBAYASHI HIROSHI
IWAYA TETSUROU
KOBAYASHI HIROSHI
IWAYA TETSUROU
Application Number:
PCT/JP2001/001577
Publication Date:
September 13, 2001
Filing Date:
March 01, 2001
Export Citation:
Assignee:
ASAHI CHEMICAL IND (JP)
International Classes:
B41M5/333; C07C275/40; C07C311/47; C07C317/22; C07C317/42; C09K9/02; B41M5/30; B41M5/337; (IPC1-7): C07C275/40; C07C317/42; C07C317/22; C07C311/47; C09K9/02; C07D229/00; C07D493/10; C07D307/85; C07D405/04; B41M5/26; B41M5/30
Domestic Patent References:
| WO1999051692A1 | 1999-10-14 | |||
| WO1992020747A1 | 1992-11-26 | |||
| WO1990006975A1 | 1990-06-28 | |||
| WO2000014058A1 | 2000-03-16 |
Foreign References:
| JPH10310633A | 1998-11-24 | |||
| EP0160402A2 | 1985-11-06 | |||
| US4384102A | 1983-05-17 | |||
| JPS452594B1 | 1970-01-28 | |||
| JPH08311357A | 1996-11-26 | |||
| EP0832757A1 | 1998-04-01 | |||
| US5780483A | 1998-07-14 | |||
| US5055567A | 1991-10-08 | |||
| JPS6135444A | 1986-02-19 |
Other References:
See also references of EP 1260498A4
None
None
Attorney, Agent or Firm:
Asamura, Kiyoshi (New Ohtemachi Bldg. 2-, Ohtemachi 2-chome Chiyoda-ku Tokyo, JP)
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