EP 2412870 A1 20120201 - Composition and process for whitening paper
Title (en)
Composition and process for whitening paper
Title (de)
Zusammensetzung und Verfahren zur Papierbleichung
Title (fr)
Composition et processus pour papier blanchi
Publication
Application
Priority
EP 10171451 A 20100730
Abstract (en)
The invention relates to a composition suitable for surface treatment of paper, wherein the composition contains a specified fluorescent whitening agent with a combination of specific terminal groups, a salt of a bivalent cation, and a carrier. The composition is used for whitening paper, in particular in the size press.
IPC 8 full level
D21H 17/07 (2006.01); C07D 251/00 (2006.01); C09K 11/06 (2006.01); D21H 17/09 (2006.01); D21H 17/51 (2006.01); D21H 21/30 (2006.01)
CPC (source: EP US)
D21H 17/07 (2013.01 - EP US); D21H 17/09 (2013.01 - EP US); D21H 17/51 (2013.01 - EP US); D21H 21/30 (2013.01 - EP US)
Citation (applicant)
- US 6207258 B1 20010327 - VARNELL DANIEL F [US]
- WO 2009150180 A1 20091217 - KEMIRA GERMANY GMBH [DE], et al
- EP 2135997 A1 20091223 - KEMIRA GERMANY GMBH [DE]
- EP 0860437 A1 19980826 - BAYER AG [DE]
Citation (search report)
- [XDY] EP 2135997 A1 20091223 - KEMIRA GERMANY GMBH [DE]
- [YD] EP 0860437 A1 19980826 - BAYER AG [DE]
- [A] WO 2004005617 A1 20040115 - CIBA SC HOLDING AG [CH], et al
- [AD] US 6207258 B1 20010327 - VARNELL DANIEL F [US]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
Designated extension state (EPC)
BA ME RS
DOCDB simple family (publication)
EP 2412870 A1 20120201; EP 2412870 B1 20130417; BR 112013002342 A2 20160524; CA 2802544 A1 20120202; US 2013126117 A1 20130523; WO 2012013513 A1 20120202
DOCDB simple family (application)
EP 10171451 A 20100730; BR 112013002342 A 20110714; CA 2802544 A 20110714; EP 2011062081 W 20110714; US 201113813160 A 20110714