Multilayer polymeric composite, method for its manufacture,...

Details Multilayer polymeric composite, method for its manufacture,... Multilayer polymeric composite, method for its manufacture,...

C - Chemistry, Metallurgy

08

J

117/123, 4/49, 1

C08J 5/12 (2006.01) A47K 3/00 (2006.01) B32B 27/08 (2006.01)

Patent

CA 1336874

A multilayer polymeric composite structure of high impact strength and delamination resistance possesses a polymeric cosmetic layer chemically bonded to a cross-linked, isocyanate-modified thermosetting polyester or polyether substrate layer. In one embodiment of the structure, a relatively thin, predominantly acrylic resin layer is chemically bonded through urethane linkages to a relatively thick, reinforced, polyester foam substrate layer. The composite structure can be fabricated into light weight, durable articles, i.e., plumbing fixtures which include bathtubs, sinks, shower receptors and the like. A reinforced reaction injection molding (RRIM) procedure for manufacturing the polymeric composite structure is also disclosed.

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