发明名称 |
Manufacture of chipboard. |
摘要 |
<p>Chipboard showing a strongly reduced formaldehyde- emission is prepared on the basis of cellulose-containing material with a urea-formaldehyde or urea-melamine -formaldehyde resin as a binder, wherein said binder contains 0.45 to 0.65 mole of formaldehyde per mole-equivalent of amino groups and to which between 2 and 20% by wt., relative to the resin, of a protein soluble or dispersible in the resin solution has been added. The resin preferably contains between25 and 45% by wt. of melamine, relative to the combined amount of urea and melamine. The boards have good strength and weather resistance, and have a very low formaldehyde emission.</p> |
申请公布号 |
EP0013447(A1) |
申请公布日期 |
1980.07.23 |
申请号 |
EP19790200753 |
申请日期 |
1979.12.12 |
申请人 |
METHANOL CHEMIE NEDERLAND V.O.F. |
发明人 |
TINKELENBERG, ARIE;VAESSEN, HENRICUS WILHELMUS LEONARDUS MARIE;SUEN, KWAI WING;VAN DOORN, ANTON JAN |
分类号 |
C08L61/24;C08L61/30;C08L97/02;(IPC1-7):29J5/02;08L61/20;08L97/02 |
主分类号 |
C08L61/24 |
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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