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:
Jul. 21, 2015
Filed:
Feb. 18, 2005
Kenji Kawai, Aichi, JP;
Hirokazu Oogi, Aichi, JP;
Naonobu Oda, Inuyama, JP;
Tadashi Nakaya, Inuyama, JP;
Tooru Imai, Aichi, JP;
Yuka Sako, Aichi, JP;
Kenji Kawai, Aichi, JP;
Hirokazu Oogi, Aichi, JP;
Naonobu Oda, Inuyama, JP;
Tadashi Nakaya, Inuyama, JP;
Tooru Imai, Aichi, JP;
Yuka Sako, Aichi, JP;
Toyo Boseki Kabushiki Kaisha, Osaka-shi, JP;
Abstract
A heat sealable polypropylene resin laminate film having good toughness and heat sealing strength and energy sufficient for packaging heavy goods, mainly fruits and vegetables, and a package made of such film, is a laminate film having three or more layers, a substrate layer made of a crystalline polypropylene resin, a heat sealable layer having a melting point of not more than 150° C., and an intermediate layer. The product of the tensile modulus of elasticity (GPa) in both orthogonal directions of the film is 3.1-6.0 (GPa), and the heat sealing energy is not less than 11N·cm/15 mm when the film is sealed, such that the heat sealing strength of the film is not less than 8N/15 mm.