Title:
PAPER CONTAINER FOR LIQUID
Document Type and Number:
Japanese Patent JP2019202788
Kind Code:
A
Abstract:
To provide a paper container for liquid which has a sealant layer excellent in membrane manufacturing suitability to a film, is formed into a box-shape, is excellent in sealing suitability after the container is filled with contents, and is excellent in a low adsorbing property of substances derived from the contents.SOLUTION: In a paper container for liquid, a sealant layer is formed by a polyethylene 1 layer, an annular polyolefin layer, and a polyethylene 2 layer, from the side of a liquid-contact surface. The polyethylene 1 layer is composed of a blend of linear low density polyethylene, and low density polyethylene. The content ratio of the linear low density polyethylene of the polyethylene 1 layer is 1% or more and 50% or less. The density of the linear low density polyethylene of the polyethylene 1 layer is 0.925 g/cmor less. The Tg of annular polyolefin of the annular polyolefin layer is 40°C or more and 100°C or less. A gas barrier layer is prepared between a paper base material layer and the sealant layer.SELECTED DRAWING: Figure 1
Inventors:
NAKAMURA YUKIHIRO
Application Number:
JP2018097049A
Publication Date:
November 28, 2019
Filing Date:
May 21, 2018
Export Citation:
Assignee:
TOPPAN PRINTING CO LTD
International Classes:
B65D65/40
Domestic Patent References:
| JP2013237186A | 2013-11-28 | |||
| JP2011020705A | 2011-02-03 | |||
| JP2008221606A | 2008-09-25 | |||
| JP2005524586A | 2005-08-18 | |||
| JP2000117904A | 2000-04-25 | |||
| JP2002205359A | 2002-07-23 |
Foreign References:
| WO2014103472A1 | 2014-07-03 |
Other References:
SUMITOMO CHEMICAL CO., LTD., 住友化学のポリオレフィン情報サイト, JPN6022037937, 2006, JP, ISSN: 0005011243