发明名称 Vinyl faced wallboard
摘要 The invention is directed to a wallboard structure which is first composed of a base sheet having a dense upper surface region. Over the dense surface region there is placed a vinyl sheet. Perforations are placed through the vinyl sheet and through the dense surface region and partly into the base region so there is formed an acoustical vinyl faced wallboard.
申请公布号 US4397894(A) 申请公布日期 1983.08.09
申请号 US19820360786 申请日期 1982.03.22
申请人 ARMSTRONG WORLD INDUSTRIES, INC. 发明人 HAINES, JR., CHARLES;KENT, RAYMOND C.
分类号 B32B27/12;E04C2/24;E04F13/08;(IPC1-7):B32B3/10 主分类号 B32B27/12
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