发明名称 |
Multi-ply paperboard prepared from recycled materials and methods of manufacturing same |
摘要 |
This invention, in one aspect, relates to a multi-ply paperboard having at least three inner plies and, in some aspects, a top liner and a back liner, wherein the multi-ply paperboard is derived from fiber sources comprising at least about 80% by weight recycled fiber. The multi-ply paperboard of the present invention exhibits strength characteristics comparable those of paperboard prepared from virgin board. In further aspects, the invention relates to methods of making the multi-ply paperboard of the present invention.
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申请公布号 |
US2004069428(A1) |
申请公布日期 |
2004.04.15 |
申请号 |
US20030654336 |
申请日期 |
2003.09.02 |
申请人 |
HANSEN JAMES K.;MUNSON RICHARD L.;BALAGUER ROBERTO;LEITINGER JEFFREY M.;BARTON THOMAS F. |
发明人 |
HANSEN JAMES K.;MUNSON RICHARD L.;BALAGUER ROBERTO;LEITINGER JEFFREY M.;BARTON THOMAS F. |
分类号 |
B32B29/00;B65D5/00;B65D5/62;D21F9/02;D21F11/04;D21H11/10;D21H11/14;D21H27/30;D21H27/38;(IPC1-7):D21H27/30;B32B9/06 |
主分类号 |
B32B29/00 |
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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