发明名称 |
METHOD FOR THE REDUCTION OF FORMALDEHYDE EMISSIONS IN WOOD MATERIALS |
摘要 |
The present invention relates to a method for the reduction of the formaldehyde emission of wood-base materials by application of nitrogen-containing compounds, wherein (i) a mixture which comprises at least one polyamine and, if appropriate, up to 20% by weight, based on the mixture, of urea is applied to the wood-base material; (ii) polyamine is applied on or in the particle or fiber cake; (iii) polyamine is applied to the coating substrate used for surface finishing and/or (iv) polyamine is applied to the exposed areas; the polyamines having a molecular weight of at least 500 g/mol and at least 6 primary or secondary amino groups. |
申请公布号 |
EP1979139(A1) |
申请公布日期 |
2008.10.15 |
申请号 |
EP20070703814 |
申请日期 |
2007.01.12 |
申请人 |
BASF SE |
发明人 |
RUEBA, EVA;WEINKOETZ, STEPHAN;SCHMIDT, MICHAEL;FINKENAUER, MICHAEL;BEIL, CHRISTIAN;LUNKWITZ, RALPH |
分类号 |
B27K3/15;B27K3/52;B27N1/00;B27N7/00 |
主分类号 |
B27K3/15 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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