发明名称 |
Post-press molding of man-made boards to produce contoured furniture parts |
摘要 |
A method of molding a cellulosic fiber containing board at a temperature of at least 525 DEG F. to provide a relatively high density skin on at least one surface. A fibrous composition, including cellulosic fibers, is consolidated to form a blank having a density of less than 35 pounds/cubic foot. The blank is then cut to a shape larger in at least two of its three dimensions than corresponding dimensions of a mold cavity when said mold is in a closed position. Urea is then included in at least a surface layer of fibers of the blank in an amount of at least 5% based on the dry weight of the fibers contacted with urea, and thereafter the cut blank is molded to form a contoured product having a skin on at least one surface thereof, the skin defined by a thickness of material on said surface of said product having a density greater than the material on which the skin is formed.
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申请公布号 |
US4175105(A) |
申请公布日期 |
1979.11.20 |
申请号 |
US19770819876 |
申请日期 |
1977.07.28 |
申请人 |
MASONITE CORP |
发明人 |
CLARKE, JOHN T;HOFFMAN, MICHAEL R;LUCK, ALLAN J |
分类号 |
B27N7/00;C08L97/02;(IPC1-7):B29J5/04 |
主分类号 |
B27N7/00 |
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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