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:
Feb. 01, 2011
Filed:
Feb. 18, 2005
Kenji Kawai, Aichi, JP;
Hirokazu Oogi, Aichi, JP;
Kenji Kawai, Aichi, JP;
Hirokazu Oogi, Aichi, JP;
Toyo Boseki Kabushiki Kaisha, Osaka, JP;
Abstract
A wide polyolefin film may be made by high-speed film forming, which has uniform properties over its whole width and is free of thickness irregularities, and provides a packaging film applicable to large-scale production which has good gloss and bag-making property, as well as a package made from the film. A polyolefin laminate film includes an oriented base layer that is mainly made up of a polypropylene resin and a sealing layer mainly made up of a polyolefin resin which is formed on at least one surface of the base layer, which film has an effective product takeout width of not less than 5500 mm and satisfies the following relational formula of the thickness variation rate Y (%) of the film and the product takeout width X (mm) of the film:≦0.001