Stock material or miscellaneous articles – Sheet including cover or casing – Foamed or expanded material encased
Patent
1991-04-23
1992-11-03
Thomas, Alexander S.
Stock material or miscellaneous articles
Sheet including cover or casing
Foamed or expanded material encased
428 76, 428 99, 4283188, B32B 104
Patent
active
051607727
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.
Futami Takashi
Iwamoto Tatsuhiko
Okamura Seijiro
Dunlap Thoburn T.
Nippon Zeon Co. Ltd.
Thomas Alexander S.
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