EP 0212010 A1 19870304 - Color developers for pressure-sensitive or heat-sensitive recording papers.
Title (en)
Color developers for pressure-sensitive or heat-sensitive recording papers.
Title (de)
Farbentwickler für druck- oder wärmeempfindliche Aufzeichnungsmaterialien.
Title (fr)
Développeur de couleur pour les papiers d'enregistrement sensibles à la pression ou à la chaleur.
Publication
Application
Priority
EP 85304919 A 19850710
Abstract (en)
A color developer for use in pressure-sensitive or heat-sensitive recording papers comprise N-monosubstituted sulfonamides which contain at least one electron-withdrawing group within five atoms of the amido group of the sulfonamide. The N-monosubstituted sulfonamide may be in the form of an N-substituted, N'-mono or di-substituted sulfamide, or a polyfunctional molecule containing such an N-monosubstituted sulfonamide as the functional or impeding group thereof. The maximum color developing potential is realized when these compounds are used in conjunction with a source of metal or metal compound.
IPC 1-7
IPC 8 full level
B41M 5/155 (2006.01); B41M 5/333 (2006.01); B41M 5/30 (2006.01)
CPC (source: EP)
B41M 5/155 (2013.01); B41M 5/3336 (2013.01)
Citation (search report)
- [X] EP 0104353 A2 19840404 - HODOGAYA CHEMICAL CO LTD [JP]
- [X] EP 0027913 A2 19810506 - CIBA GEIGY AG [CH]
- [A] GB 1204495 A 19700909 - AGFA GEVAERT NV [BE]
- [A] US 3129109 A 19640414 - WORKMAN WESLEY R
- [A] US 3076721 A 19630205 - COLES ROBERT F, et al
- [AD] EP 0012112 A1 19800611 - CIBA GEIGY AG [CH]
- [X] PATENTS ABSTRACTS OF JAPAN, vol. 9, no. 18 (M-353) [1741], 25th January 1985; & JP - A - 59 165 678 (NIPPON KAYAKU K.K.) 18-09-1984
- [X] PATENTS ABSTRACTS OF JAPAN, vol. 8, no. 61 (M-284) [1498], 23rd March 1984; & JP - A - 58 211 493 (RICOH K.K.) 08-12-1983
- [A] PATENTS ABSTRACTS OF JAPAN, vol. 9, no. 7 (M-350) [1730], 12th January 1985; & JP - A - 59 156 790 (PILOT INK K.K.) 06-09-1984
Designated contracting state (EPC)
CH DE FR GB IT LI SE
DOCDB simple family (publication)
DOCDB simple family (application)
EP 85304919 A 19850710