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:
Oct. 04, 2011
Filed:
Nov. 30, 2009
Yuki Manabe, Tokushima, JP;
Hideshi Okamoto, Tokushima, JP;
Keiichi Kawakami, Tokushima, JP;
Otsuka Pharmaceutical Factory, Inc., Tokushima, JP;
Abstract
Disclosed is a multi-layer film comprising: a surface layer having a thickness of 10 to 50 ∫Êm made of an ethylene-∫-olefin copolymer having a density of 0.935 to 0.950 g/cm3, a flexible layer having a thickness of 100 to 200 ∫Êm made of an ethylene-∫-olefin copolymer having a density of 0.860 to 0.930 g/cm3, a barrier layer having a thickness of 10 to 80 ∫Êm made of a mixed resin containing 60 to 95% by weight of a cyclic olefin polymer and 5 to 40% by weight of an ethylene-∫-olefin copolymer having a density of 0.900 to 0.965 g/cm3, and a seal layer having a thickness of 5 to 80 ∫Êm made of an ethylene-∫-olefin copolymer having a density of 0.910 to 0.950 g/cm3. This multi-layer film is suited for use as a material for production of a medicine containerbecause it suppresses adsorption of a medicine by the barrier layer and is also superior in strength and flexibility.