EP 0057740 A1 19820818 - Pressure sensitive recording sheets.
Title (en)
Pressure sensitive recording sheets.
Title (de)
Druckempfindliches Aufzeichnungsmaterial.
Title (fr)
Papiers copiants sensibles à la pression.
Publication
Application
Priority
EP 81100898 A 19810209
Abstract (en)
Pressure sensitive recording sheets are prepared characterized by containing on one side thereof color former dissolved in a solvent which is one or a mixture of alkoxy diphenyl alkanes having the following structure: <CHEM> where R1, R2, R3 and R4 are H or a straight or branched chain alkyl group of 1 to 8 carbon atoms and can be the same or different; R5 is a straight or branched chain alkyl group of 1 to 9 carbon atoms; R6 is a straight or branched chain alkyl group of 1 to 8 carbon atoms; x is 0,1 or 2; y is 1 or 2 and n is 1 or 2, with the proviso that the sum of the carbon atoms in R1, R2, R3, R4, R5 and R6 does not exceed 9 and with the further proviso that where the alkoxy diphenyl alkane is a solid to viscous liquid, at least one diluent or at least one other generally liquid solvent or mixture thereof is present. The treated side of the sheet is brought into contact with a developer. Upon application of pressure, color is produced by reaction between the color former and the developer.
IPC 1-7
IPC 8 full level
B41M 5/165 (2006.01)
CPC (source: EP)
B41M 5/1655 (2013.01)
Citation (search report)
- GB 2039934 A 19800820 - APPLETON PAPER INC
- US 3968320 A 19760706 - HERBER JOHN F, et al
- US 4105743 A 19780808 - REINHARDT HANS, et al
- GB 1564931 A 19800416 - MONSANTO EUROPE SA
- FR 2242251 A1 19750328 - MONSANTO CO [US]
- DE 2342758 A1 19750410 - PELIKAN WERKE WAGNER GUENTHER
- DE 2726782 A1 19771229 - MONSANTO EUROPE SA
- FR 2373590 A1 19780707 - MONSANTO EUROPE SA [BE]
- FR 2445360 A1 19800725 - APPLETON PAPER INC [US]
Designated contracting state (EPC)
BE DE FR GB IT SE
DOCDB simple family (publication)
DOCDB simple family (application)
EP 81100898 A 19810209