公开(公告)号：CA2631869A1

公开(公告)日：2007-07-26

申请号：CA2631869

申请日：2007-01-12

Applicant: BASF AG

Inventor： RUEBA EVA ,  FINKENAUER MICHAEL ,  SCHMIDT MICHAEL ,  BEIL CHRISTIAN ,  WEINKOETZ STEPHAN ,  LUNKWITZ RALPH

IPC: B27K3/15 ,  B27K3/52 ,  B27N1/00 ,  B27N7/00

Abstract: 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 chi p 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.

公开(公告)号：CA2657108A1

公开(公告)日：2008-01-31

申请号：CA2657108

申请日：2007-01-12

Applicant: BASF AG

Inventor： FINKENAUER MICHAEL ,  SCHMIDT MICHAEL ,  RUEBA EVA ,  BEIL CHRISTIAN ,  WEINKOETZ STEPHAN

IPC: C08L97/02 ,  A61L9/00 ,  B27N3/00 ,  F24F5/00

Abstract: The present invention relates to the use of timber materials for the prod uction of furniture parts, wall coverings, insulation materials and the like , for lowering formaldehyde content in ambient air, where the timber materia ls (i) comprise polyamine as binder or (ii) comprise a binder other than pol yamine and also, in or on the outer layers of the timber material, polyamine , and the molar mass of the polyamine is at least 500 g/mol and the polyamin e has at least 6 primary or secondary amino groups.