Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1980-04-14
1981-09-29
Van Balen, William J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
264 453, 428110, 428255, 428310, 428313, 521902, B32B 502, B32B 520, B32B 528, B29D 704
Patent
active
042923638
ABSTRACT:
The laminates have a core of rigid isocyanurate-based foam sandwiched between two facing sheets which are preferably non-combustible. Embedded in the core, substantially throughout its thickness, are multiple layers of a mesh of continuous glass fibre strands which is readily permeable to the foam forming ingredients. Each layer of the mesh is substantially parallel to the facing sheets.
The laminates show advantages over laminates reinforced with single filament surface veil mat, single filament expanded mat, single filament random swirl mat and continuous rovings.
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patent: 4163824 (1979-08-01), Saidla
Imperial Chemical Industries Limited
Van Balen William J.
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