发明名称 |
GYPSUM FIBERBOARD DOOR FRAME. |
摘要 |
<p>A door frame having excellent fire-resistance, flexural strength and screw holding properties is fabricated from gypsum fiberboard, specifically a gypsum fiberboard having a density of at least 60 lbs./cu.ft., a flexural strength of at least about 30 lbs. (1/2'' thick material), and a screw holding capability of at least about 400 lbs. A preferred gypsum fiberboard material for fabrication of the door frame comprises a composition containing a substantially uniform dispersion of solids including by weight about 65% to 90% set gypsum, about 7% to about 30% pulped paper, up to about 9% binder, and about 0.8% to 2% inorganic fiber. A wood veneer is preferably applied to the visible faces of the gypsum fiberboard door frame members.</p> |
申请公布号 |
EP0656983(A1) |
申请公布日期 |
1995.06.14 |
申请号 |
EP19940908097 |
申请日期 |
1993.08.10 |
申请人 |
GEORGIA-PACIFIC CORPORATION |
发明人 |
RICHARDS, TURNER, W.;FRANCIS, HUBERT, C.;FOWLER, GEORGE, F. |
分类号 |
C04B14/10;B28B1/52;B28B5/02;B28B19/00;B32B13/04;C04B14/12;C04B14/20;C04B16/02;C04B24/24;C04B28/14;E04B1/94;E06B1/24;E06B1/26;E06B1/32;E06B1/34;E06B5/16;(IPC1-7):E06B1/26 |
主分类号 |
C04B14/10 |
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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