Stock material or miscellaneous articles – Structurally defined web or sheet – Including stitching and discrete fastener – coating or bond
Patent
1997-04-02
1999-02-23
Raimund, Christopher
Stock material or miscellaneous articles
Structurally defined web or sheet
Including stitching and discrete fastener, coating or bond
428174, 156 93, 264 31, 264 36, 264152, 264259, 264267, 264269, B32B 306
Patent
active
058741518
ABSTRACT:
Rigidifiable composites are formed by stitching a reinforced B-stage resin sheet stock to form a three-dimensional preform. The preform is subsequently rigidified by initiating final cure of the resin. Molded articles, inflatable and other structures, such as, tank, tunnel and sewer liners are some of the typical structures which can be formed by the methods of the invention. Control of thread count, thread tension and thread spacing can be used to consolidate multi-ply or layered preforms, which, upon cure, can have up to 90% of the load carrying capacity of compression molded fiber reinforced articles.
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Ashmead Edgar G.
Cohee Donald R.
ILC Dover, Inc.
Raimund Christopher
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