The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 09, 2011
Filed:
Jan. 15, 2007
Hitoshi Ishii, Omitama, JP;
Seiichi Ibe, Omitama, JP;
Tadayoshi Itoh, Omitama, JP;
Shigeyoshi Nakaki, Omitama, JP;
Hitoshi Ishii, Omitama, JP;
Seiichi Ibe, Omitama, JP;
Tadayoshi Itoh, Omitama, JP;
Shigeyoshi Nakaki, Omitama, JP;
Kureha Corporation, Tokyo, JP;
Abstract
A heat shrinkable multilayer film comprising an outer surface layer (a) formed of a thermoplastic resin, a first intermediate layer (b) formed of a polyamide resin, a second intermediate layer (b) formed of a saponified product of an ethylene-vinyl acetate copolymer, and an inner surface layer (c) formed of a polyolefin resin, wherein the 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, and the 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.