EP 1706537 A2 20061004 - PROCESS FOR MAKING PAPER
Title (en)
PROCESS FOR MAKING PAPER
Title (de)
VERFAHREN ZUR HERSTELLUNG VON PAPIER
Title (fr)
PROCEDE DE PRODUCTION DE PAPIER
Publication
Application
Priority
- US 2005002120 W 20050121
- US 53862204 P 20040123
Abstract (en)
[origin: US2005161183A1] Methods for making paper or paperboard are described. One preferred method comprises forming a treated pulp by added to a papermaking pulp a synthetic layered silicate, a peptizer and at least one polymer. The synthetic layered silicate preferably comprises a synthetic hydrous sodium lithium magnesium silicate and the polymer is selected from cationic, nonionic and amphoteric polymers. The peptizer is preferably an inorganic polyphosphate peptizer and is contained in certain commercial synthetic layered silicate products. The inventor has surprisingly found that the peptizer provides significant improvements in drainage, retention and turbidity, thereby improving the papermaking process and the paper or paperboard product.
IPC 8 full level
D21H 17/68 (2006.01); D21H 17/37 (2006.01); D21H 17/45 (2006.01); D21H 21/10 (2006.01); D21H 17/66 (2006.01); D21H 23/14 (2006.01)
CPC (source: EP US)
D21H 21/10 (2013.01 - EP US); D21H 17/375 (2013.01 - EP US); D21H 17/455 (2013.01 - EP US); D21H 17/66 (2013.01 - EP US); D21H 17/68 (2013.01 - EP US); D21H 23/14 (2013.01 - EP US)
Citation (search report)
See references of WO 2005071160A2
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 MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
US 2005161183 A1 20050728; AU 2005206565 A1 20050804; BR PI0506530 A 20070227; CN 1934316 A 20070321; EP 1706537 A2 20061004; JP 2007518897 A 20070712; MX PA06008268 A 20060831; WO 2005071160 A2 20050804; WO 2005071160 A3 20051027; ZA 200606353 B 20070627
DOCDB simple family (application)
US 4057905 A 20050121; AU 2005206565 A 20050121; BR PI0506530 A 20050121; CN 200580009133 A 20050121; EP 05711879 A 20050121; JP 2006551351 A 20050121; MX PA06008268 A 20050121; US 2005002120 W 20050121; ZA 200606353 A 20060801