发明名称 |
Composite board and method |
摘要 |
A composite board is produced by the method of blending a cellulosic filler having sufficient extractable organic content and an expandable thermoplastic polymer, adding a tacifier agent during blending for producing a pre-blown mixture, heating the mixture in a mold to a temperature above the glass transition temperature of the polymer for a period of time sufficient to permit expansion of the beads and bonding of the expanded beads with the cellulosic filler to thereby form a composite board. The board may be laminated by a solvent based adhesive or a thermal insult coating so as to form rigid macro-voids between the laminate and the composite board surface.
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申请公布号 |
US4818604(A) |
申请公布日期 |
1989.04.04 |
申请号 |
US19870032049 |
申请日期 |
1987.03.27 |
申请人 |
SUB-TANK RENEWAL SYSTEMS, INC. |
发明人 |
TOCK, RICHARD W. |
分类号 |
B27N3/00;C08J9/00;C08J9/236;E04B1/86;(IPC1-7):B32B27/00 |
主分类号 |
B27N3/00 |
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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