Composite molded articles
AssigneeNippon Zeon Co., Ltd.
InventorsTakashi Futami, Tatsuhiko Iwamoto, Seijiro Okamura
Life of this patent
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Abstract
Integrally molded lightweight composite articles having a foam core and a ring-opened polynorbornene outer layer are prepared by placing a low forming ratio foam core having an integral outer skin in a mold and polymerizing a norbornene type monomer around the core.
Claims17
An integrally molded composite comprising a core member and a polynorbornene outer layer, said core member comprising a low foaming ratio plastic foam having an integrally formed skin on substantially the surface thereof, said core member being encapsulated by said outer polynorbornene layer and said outer polynorbornene layer comprising at least one norbornene-type monomer that is bulk polymerized via metathesis ring-opening bulk polymerization around said core member.
An integrally molded composite comprising a core member and a thermosetting polynorbornene outer layer, said core member being a polyurethane foam having a forming ratio of 5 to 15 and having an integrally formed skin on the periphery thereof, said core member being encapsulated by said polynorbornene outer layer and said outer layer comprising at least one cross-linking norbornene type monomer that is bulk polymerized via metathesis ring-opening polymerization about said core member.
Dependencies are inferred from the claim text.