Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Composite having voids in a component
Patent
1990-11-30
1991-12-03
Van Balen, William J.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Composite having voids in a component
4283175, 4283193, B32B 326
Patent
active
050699610
ABSTRACT:
Pre-formed millwork article for attachment to a building or the like wherein the article has a core composed of a rigid filler material, such as an expandable polystyrene, a body portion composed of a rigid foamed material, such as polyurethane, and an exterior coating layer. The body has an inner surface which is adjacent to the core and an outer surface. The exterior coating layer is adjacent to the outer surface of the body. The coating layer can be a paint. The method for manufacturing the pre-formed millwork article consists of: (a) spraying an exterior coating layer in a mold; (b) heating the coating layer and the mold in order to cure the coating layer; (c) pouring a foamed material in the mold over the cured coating layer; (d) placing a filler material into the mold over the foamed material; (e) allowing the foamed material to harden; and (f) removing the article from the mold.
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Beck Merle G.
Beck Randall S.
Style-Mark, Inc.
Van Balen William J.
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