EP 0543372 A1 19930526 - Water-in-oil emulsions and their use in paper treatment.
Title (en)
Water-in-oil emulsions and their use in paper treatment.
Title (de)
Wasser-in-Öl-Emulsionen, und Verwendung in der Papierbehandlung.
Title (fr)
Emulsions eau dans l'huile, et leur utilisation dans le traitement du papier.
Publication
Application
Priority
IT MI913102 A 19911120
Abstract (en)
WATER-IN-OIL (W/O) MICROEMULSION CONTAINING AN AQUEOUS SOLUTION OF WATER SOLUBLE ALKALI METAL AND ALKALINE EARTH METAL SALTS, A HYDROPHOBIC SOLVENT AND A SURFACTANT. SUCH A MICROEMULSION IS USED IN ORDER TO DEACIDIFY PAPERS BY IMPREGNATION.
IPC 1-7
IPC 8 full level
D21H 25/00 (2006.01); B01J 13/00 (2006.01); D21H 25/18 (2006.01)
CPC (source: EP)
D21H 25/18 (2013.01)
Citation (search report)
- [X] FR 2578198 A1 19860905 - KOPPERS CO INC [US]
- [A] US 3898356 A 19750805 - WILLIAMS JOHN C, et al
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IE IT LI LU NL PT SE
DOCDB simple family (publication)
EP 0543372 A1 19930526; CA 2083460 A1 19930521; IT 1252006 B 19950527; IT MI913102 A0 19911120; IT MI913102 A1 19930520; JP H0615161 A 19940125
DOCDB simple family (application)
EP 92119718 A 19921119; CA 2083460 A 19921120; IT MI913102 A 19911120; JP 30905392 A 19921118