Stock material or miscellaneous articles – Hollow or container type article – Shrinkable or shrunk
Reexamination Certificate
2011-08-09
2011-08-09
Miggins, Michael C (Department: 1782)
Stock material or miscellaneous articles
Hollow or container type article
Shrinkable or shrunk
C428S035200, C428S035700, C428S036900, C428S036910, C428S474400, C428S475500, C428S475800, C428S476100
Reexamination Certificate
active
07993713
ABSTRACT:
A heat shrinkable multilayer film comprising an outer surface layer (a) formed of a thermoplastic resin, a first intermediate layer (b1) formed of a polyamide resin, a second intermediate layer (b2) formed of a saponified product of an ethylene-vinyl acetate copolymer, and an inner surface layer (c) formed of a polyolefin resin, whereinthe shrink of the heat shrinkable multilayer film in water at 90° C. is within a range of from 3 to 45% in each of machine and transverse directions, andthe polyamide resin is a mixture of 60 to 90% by weight of an aliphatic polyamide having a melting point of 210° C. or higher and 10 to 40% by weight of an aromatic polyamide comprising isophthalic acid and terephthalic acid as main components.
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Ibe Seiichi
Ishii Hitoshi
Itoh Tadayoshi
Nakaki Shigeyoshi
Kureha Corporation
Miggins Michael C
Oliff & Berridg,e PLC
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