发明名称 |
A SUSPENSION OF AMMONIUM CARBONATE AND/OR AMMONIUM HYDROGEN CARBONATE OF IMPROVED STABILITY AND ITS USE |
摘要 |
The invention relates to a suspension of ammonium carbonate and/or ammonium hydrogen carbonate in an aqueous solution saturated with respect to said salts and optionally also containing urea. For the purpose of stabilizing the suspension there is incorporated therein a polyacrylic acid having an average molecular weight ( &upbar& Mw) in the range of 4x105-1x106, preferably about 7.5x105. The invention also relates to the use of the suspension for treating carbamide-resin bound, wood-based board material, such as plywood, chipboard and wood fibreboard, for reducing the emission of formaldehyde therefrom. |
申请公布号 |
DE3462781(D1) |
申请公布日期 |
1987.04.30 |
申请号 |
DE19843462781 |
申请日期 |
1984.11.12 |
申请人 |
SWEDSPAN AB |
发明人 |
BJORLIN, ANDERS;EDBERG, THOMAS;SJOBLOM, EVA;WESTLING, ANDERS |
分类号 |
C01C1/26;(IPC1-7):C01C1/26;B27N7/00;B27K3/52 |
主分类号 |
C01C1/26 |
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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