发明名称 |
FORFARANDE FOR FRAMSTELLNING AV EN FIBERSKIVA MED EN KERNA ELLER MITTDEL MED RELATIVT LAG DENSITET OCH MED YTSKAL ELLER YTDELAR MED RELATIVT HOG DENSITET |
摘要 |
<p>A fiberboard is manufactured having relatively high density skins on a relatively low density core by including urea in at least the surface fibers of a consolidated mat, having a density of less than 35 pounds per cubic foot, and then hot-pressing the consolidated mat at a temperature of at least 525 DEG F. to form a board having high density surface skins.</p> |
申请公布号 |
SE7712392(A) |
申请公布日期 |
1978.05.05 |
申请号 |
SE19770012392 |
申请日期 |
1977.11.02 |
申请人 |
* MASONITE CORPORATION |
发明人 |
A J * LUCK;J T * CLARKE;M R * HOFFMAN |
分类号 |
B27N3/04;B27N3/06;B27N7/00;C08L97/02;D06N7/06;(IPC1-7):29J5/00 |
主分类号 |
B27N3/04 |
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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