发明名称 Rigid paperboard container
摘要 A container formed from a unitary paperboard blank having a substantially planer inner region, a sidewall region and a rim region formed about the periphery thereof is disclosed. The sidewall region includes a generally annular region flaring upwardly and outwardly from a periphery of the planer inner region and a first frusto-conical region adjoining the annular region with the frusto-conical region sloping outwardly and upwardly from the annular region. The rim region includes an outwardly flaring arcuate annular region adjoining an outer periphery of the first frusto-conical region, and a second frusto-conical region extending substantially tangentially from the arcuate annular region. During the fabrication of the paperboard material for forming the aforementioned container, the paperboard material is impregnated with a sizing adhesive equivalent to at least 6 pounds of starch per 3,000 ft2 ream of paperboard material with the sizing adhesive including a pigment, said pigment being not more than 65% of the sizing adhesive.
申请公布号 US5938112(A) 申请公布日期 1999.08.17
申请号 US19950520077 申请日期 1995.08.28
申请人 FORT JAMES CORPORATION 发明人 SANDSTROM, ERLAND R.
分类号 A47G19/03;B65D1/34;B65D3/02;D21H17/28;D21H17/68;D21H21/16;(IPC1-7):B65D1/34 主分类号 A47G19/03
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