EP 3835227 A1 20210616 - PAPER CONTAINER AND METHOD FOR MANUFACTURING PAPER CONTAINER
Title (en)
PAPER CONTAINER AND METHOD FOR MANUFACTURING PAPER CONTAINER
Title (de)
PAPIERBEHÄLTER UND VERFAHREN ZUR HERSTELLUNG EINES PAPIERBEHÄLTERS
Title (fr)
CONTENANT DE PAPIER ET PROCÉDÉ DE FABRICATION DE CONTENANT DE PAPIER
Publication
Application
Priority
- JP 2018151561 A 20180810
- JP 2018245476 A 20181227
- JP 2019030404 W 20190802
Abstract (en)
In a paper container including a container main body formed by folding a blank formed of a sheet-shaped material, the sheet-shaped material includes a base material of paper, an anchor layer formed on the base material, and a sealant layer having a thickness of 20 µm or more and less than 60 µm formed on the anchor layer. The anchor layer is formed of acid-modified polypropylene resin aqueous dispersion and a melting point of polypropylene contained in the acid-modified polypropylene resin aqueous dispersion is 120 °C or more. The sealant layer is formed of homopolymer type polypropylene and the melting point of the homopolymer type polypropylene is 135 °C or more.
IPC 8 full level
B65D 65/40 (2006.01); B31B 50/64 (2017.01); B65D 5/24 (2006.01); B65D 81/34 (2006.01)
CPC (source: EP)
B31B 50/44 (2017.07); B31B 50/642 (2017.07); B65D 5/2047 (2013.01); B65D 5/246 (2013.01); B65D 5/563 (2013.01); B31B 2100/0024 (2017.07); B31B 2110/10 (2017.07); B31B 2120/40 (2017.07)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3835227 A1 20210616; EP 3835227 A4 20220406; EP 3835227 B1 20231018; WO 2020031870 A1 20200213
DOCDB simple family (application)
EP 19848634 A 20190802; JP 2019030404 W 20190802