Global Patent Index - EP 1848856 A1

EP 1848856 A1 2007-10-31 - FIXATION OF OPTICAL BRIGHTENING AGENTS ONTO PAPERMAKING FIBER

Title (en)

FIXATION OF OPTICAL BRIGHTENING AGENTS ONTO PAPERMAKING FIBER

Title (de)

FIXIERUNG OPTISCHER AUFHELLUNGSMITTEL AUF FASERN ZUR PAPIERHERSTELLUNG

Title (fr)

FIXATION D'AGENTS DE BLANCHIMENT OPTIQUE SUR UNE FIBRE DESTINEE A LA FABRICATION DE PAPIER

Publication

EP 1848856 A1 (EN)

Application

EP 06735601 A

Priority

  • US 2006006011 W
  • US 65471205 P

Abstract (en)

[origin: WO2006089274A1] The present invention relates to a method of increasing the brightness of pulp, pulp made from such methods and methods of using such pulp.

IPC 8 full level (invention and additional information)

D21C 9/00 (2006.01)

CPC (invention and additional information)

D21C 9/002 (2013.01); D21C 9/10 (2013.01); D21C 9/1036 (2013.01); D21H 21/30 (2013.01)

Citation (search report)

See references of WO 2006089274A1

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

EPO simple patent family

WO 2006089274 A1 20060824; AU 2006213983 A1 20060824; AU 2006213983 B2 20091119; BR PI0607171 A2 20090811; CA 2601926 A1 20060824; CA 2601926 C 20110719; CN 101128630 A 20080220; EP 1848856 A1 20071031; NZ 561652 A 20101029; RU 2007134269 A 20090320; RU 2010101656 A 20110810; RU 2386738 C2 20100420; US 2006185808 A1 20060824

INPADOC legal status


2013-02-27 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20120901

2009-05-06 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20090401

2008-05-28 [DAX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT (TO ANY COUNTRY) DELETED

2007-10-31 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20070808

2007-10-31 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR