EP 4291706 A1 20231220 - FILLER
Title (en)
FILLER
Title (de)
FÜLLSTOFF
Title (fr)
CHARGE
Publication
Application
Priority
- DE 102021103520 A 20210215
- EP 2022053239 W 20220210
Abstract (en)
[origin: CA3208423A1] The present invention relates to a method for producing a filler for paper, comprising the steps of providing floatation tailings from paper reprocessing, the floatation tailings containing titanium dioxide; mechanically and/or chemically treating said floatation tailings; and mixing the mechanically and/or chemically treated floatation tailings with titanium dioxide. The invention further relates to the filler obtainable according to said method, a paper containing said filler and the use of such a paper as a decorative paper. 10
IPC 8 full level
D21B 1/32 (2006.01); D21H 19/38 (2006.01)
CPC (source: EP)
D21B 1/327 (2013.01); D21H 17/675 (2013.01); D21H 19/385 (2013.01); D21H 21/52 (2013.01); D21H 27/26 (2013.01); Y02W 30/64 (2015.05)
Citation (search report)
See references of WO 2022171737A1
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 RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
DE 102021103520 A1 20220818; CA 3208423 A1 20220818; CN 116867941 A 20231010; EP 4291706 A1 20231220; WO 2022171737 A1 20220818
DOCDB simple family (application)
DE 102021103520 A 20210215; CA 3208423 A 20220210; CN 202280014768 A 20220210; EP 2022053239 W 20220210; EP 22706030 A 20220210