Film for vacuum heat insulating material, and vacuum heat insulatng material
AssigneeOkura Industrial Co., Ltd.
InventorsRyouichi Fukuzawa, Toshiyuki Murai
Life of this patent
Estimating the term…
Abstract
Provided are a film for a vacuum heat insulating material which has better gas barrier property as compared with conventional films for a vacuum heat insulating material and which is capable of retaining the excellent gas barrier property even after having been subjected to a folding or deforming process, and a vacuum heat insulating material having a core material hermetically packaged with the film. The film includes a protective layer that is a coextruded and stretched film in which a nylon-based resin, an ethylene-vinyl alcohol copolymer and a nylon-based resin are laminated in this order, a gas barrier layer, and a heat seal layer.
Claims4
A film for a vacuum heat insulating material, comprising:
- a protective layer that includes a coextruded and stretched film in which a nylon-based resin, an ethylene-vinyl alcohol copolymer and a nylon-based resin are laminated in this order;
- a gas barrier layer;
- and
- a heat seal layer.
Dependencies are inferred from the claim text.