发明名称 |
PROCESS FOR MANUFACTURING RIGID POLYISOCYANURATE FOAM PRODUCTS |
摘要 |
<p>A process for manufacturing an insulation board comprising a rigid polyisocyanurate foam core having two major surfaces and a facing material on at least one of the major surfaces, comprising (a) conveying a facing material along a production line for attachment to one major surface of the core; (b) applying a foam-forming mixture of polyisocyanurate to the facing material such that the mixture is applied along the entire width of the facing material; (c) optionally conveying a second facing material along the production line for attachment to the other major surface of the core; (d) conveying the facing material with applied foam-forming mixture into a laminator which comprises a gap for foam expansion and allowing the mixture to foam and expand to fill the gap within the laminator; and (e) curing the foam. The process provides excellent boardstock thickness control , minimal wasted densification at the foam/facer interface, greater compressive streng th and high line speed.</p> |
申请公布号 |
CA2269993(C) |
申请公布日期 |
2009.09.15 |
申请号 |
CA19992269993 |
申请日期 |
1999.04.23 |
申请人 |
JOHNS MANVILLE INTERNATIONAL, INC. |
发明人 |
HALTERBAUM, STEVEN G.;SOUKUP, THOMAS G. |
分类号 |
B29C44/20;B29C44/30;B29C44/34;B29C44/56;B32B5/20;C08G18/09;C08G18/42;C08G18/48 |
主分类号 |
B29C44/20 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|