EP 1979139 A1 20081015 - METHOD FOR THE REDUCTION OF FORMALDEHYDE EMISSIONS IN WOOD MATERIALS
Title (en)
METHOD FOR THE REDUCTION OF FORMALDEHYDE EMISSIONS IN WOOD MATERIALS
Title (de)
VERFAHREN ZUR REDUKTION DER FORMALDEHYDEMISSION BEI HOLZWERKSTOFFEN
Title (fr)
PROCÉDÉ POUR LIMITER L'ÉMISSION DE FORMALDÉHYDE DANS DES MATÉRIAUX DE CONSTRUCTION EN BOIS
Publication
Application
Priority
- EP 2007050272 W 20070112
- EP 06100479 A 20060117
- EP 06118010 A 20060727
- EP 06118004 A 20060727
- EP 06118001 A 20060727
- EP 07703814 A 20070112
Abstract (en)
[origin: WO2007082837A1] The invention relates to a method for reducing the emission of formaldehyde in wood materials by applying nitrogen-containing compounds. Said method is characterized in that (i) a mixture containing at least one polyamine and optionally up to 20 percent by weight of urea relative to the mixture is applied to the wood material; (ii) polyamine is applied onto or into the chip cake or fiber cake; (iii) polyamine is applied to the coating substrate used for finishing the surface; and/or (iv) polyamine is applied to the exposed points. The polyamines have a minimum molecular weight of 500 g/mol while being provided with at least 6 primary or secondary amino groups.
IPC 8 full level
B27K 3/15 (2006.01); B27K 3/52 (2006.01); B27N 1/00 (2006.01); B27N 7/00 (2006.01)
CPC (source: EP US)
B27K 3/153 (2013.01 - EP US); B27N 1/003 (2013.01 - EP US); B27N 7/005 (2013.01 - EP US); B27K 2200/15 (2013.01 - EP US); B32B 37/182 (2013.01 - EP US); B32B 2037/243 (2013.01 - EP US); B32B 2607/00 (2013.01 - EP US); C08L 79/02 (2013.01 - EP US); Y10T 428/31895 (2015.04 - EP US)
Citation (search report)
See references of WO 2007082837A1
Citation (examination)
- WO 9315888 A1 19930819 - WEYERHAEUSER CO [US]
- HÖLTER D ET AL: "Degree of branching in hyperbranched polymers", ACTA POLYMERICA, VCH, WEINHEIM, DE, vol. 48, 1 February 1997 (1997-02-01), pages 30 - 35, XP002658579, ISSN: 0323-7648, [retrieved on 20030311], DOI: DOI:10.1002/ACTP.1997.010480105
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
Designated extension state (EPC)
HR RS
DOCDB simple family (publication)
WO 2007082837 A1 20070726; AU 2007206994 A1 20070726; AU 2007206994 B2 20110210; BR PI0706437 A2 20110329; CA 2631869 A1 20070726; CA 2631869 C 20140318; EP 1979139 A1 20081015; JP 2009523628 A 20090625; JP 5328370 B2 20131030; MY 146656 A 20120914; NO 20082648 L 20080812; NZ 569380 A 20100730; US 2010190021 A1 20100729; US 8460761 B2 20130611
DOCDB simple family (application)
EP 2007050272 W 20070112; AU 2007206994 A 20070112; BR PI0706437 A 20070112; CA 2631869 A 20070112; EP 07703814 A 20070112; JP 2008550726 A 20070112; MY PI20082648 A 20070112; NO 20082648 A 20080605; NZ 56938007 A 20070112; US 16127607 A 20070112