Stock material or miscellaneous articles – Sheet including cover or casing – Foamed or expanded material encased
Patent
1996-09-30
1998-06-09
Dixon, Merrick
Stock material or miscellaneous articles
Sheet including cover or casing
Foamed or expanded material encased
4283044, 4283084, 428332, 428402, 4285428, 428220, 521 56, B32B 300
Patent
active
057630232
ABSTRACT:
A large-sized in-mold expansion-molded article of an olefin synthetic resin having 150 mm or more in thickness, 50% or more in fusion ratio and 10% or less in density distribution is disclosed. The expansion-molded article is obtainable by adoption of a process in which pre-expanded beads are charged into a mold, preheated and steamed before molding. Large-sized expansion-molded article of an olefin synthetic resin 500 mm or even more in thickness is obtainable by the present invention.
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Matsuki Kiyoshi
Yawata Yoshiaki
Dixon Merrick
Kanegafuchi Kagaku Kogyo & Kabushiki Kaisha
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