Title:
LAMINATED FILM FOR PACKAGING RETORT FOOD, HAVING GAS BARRIER PROPERTY
Document Type and Number:
WIPO Patent Application WO/2015/183039
Kind Code:
A1
Abstract:
The present invention relates to a novel laminated film for packaging retort food, the laminated film comprising: a polypropylene base resin layer; a graphene layer formed on an upper surface of the polypropylene base resin layer; a composite composition layer formed on an upper surface of the graphene layer; and an adhesive layer coated on one surface of the composite composition layer to adhere to the graphene layer, wherein the composite composition layer contains, on the basis of 100 parts by weight of a polypropylene resin, 5 to 40 parts by weight of a norbornene-based cyclic polyolefin, 0.5 to 20 parts by weight of a polyolefin-based rubber or a polyolefin-based elastomer, and 1 to 20 parts by weight of inorganic nanoparticles. In addition, the present invention relates to a laminated film for packaging retort food, wherein the composite composition layer further contains 0.1 to 5 parts by weight of a fluorene-based compound. The laminated film for packaging retort food, according to the present invention, exhibits very excellent characteristics in heat resistance, transparency, gas barrier property, and moisture barrier property, and thus can provide an excellent film for a retort pouch, which favorably satisfies retort treatment conditions that have tightened up recently.
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Inventors:
PARK HYUNG WOO (KR)
KIM SANG HEE (KR)
LEE HO JOON (KR)
MIN SO RA (KR)
KIM SANG HEE (KR)
LEE HO JOON (KR)
MIN SO RA (KR)
Application Number:
PCT/KR2015/005428
Publication Date:
December 03, 2015
Filing Date:
May 29, 2015
Export Citation:
Assignee:
KOREA FOOD RES INST (KR)
International Classes:
B32B27/06; B32B7/12; B32B9/00; B65D65/40
Foreign References:
| KR20140015926A | 2014-02-07 | |||
| JPH07171935A | 1995-07-11 | |||
| KR20130025168A | 2013-03-11 | |||
| KR101459677B1 | 2014-11-13 |
Attorney, Agent or Firm:
PLUS INTERNATIONAL IP LAW FIRM (KR)
특허법인 플러스 (KR)
특허법인 플러스 (KR)
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