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.
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
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