Title:
BARRIER LAYER FOR PACKAGING, AND SHEET-LIKE COMPOSITE LAYER FOR PACKAGING AND PACKAGING CONTAINER THEREOF
Document Type and Number:
WIPO Patent Application WO/2024/022494
Kind Code:
A1
Abstract:
A barrier layer (20) for packaging, and a sheet-like composite layer (90) for packaging, and a packaging container (9) thereof. The barrier layer (20) for packaging does not comprise a metal layer, and the barrier layer (20) for packaging comprises a base layer (200) and a first barrier layer (201) stacked on the base layer (200); the base layer (200) mainly comprises a base layer mixture, and the base layer mixture comprises at least two base layer polymers; the first barrier layer (201) comprises a metal oxide; the at least two base layer polymers comprise a first base layer polymer and a second base layer polymer, and the first base layer polymer is different from the second base layer polymer, so that the barrier layer (20) for packaging has at least two melting point peaks.
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Inventors:
LIU YAN (CN)
NING SHULI (CN)
NING SHULI (CN)
Application Number:
PCT/CN2023/109860
Publication Date:
February 01, 2024
Filing Date:
July 28, 2023
Export Citation:
Assignee:
SIG COMBIBLOC SUZHOU CO LTD (CN)
SIG SERVICES AG (CH)
SIG SERVICES AG (CH)
International Classes:
B32B27/32; B32B7/12; B32B27/06; B32B27/08; B32B27/10; B32B27/30; B32B29/00; B32B33/00; B65D65/40
Foreign References:
| CN115257108A | 2022-11-01 | |||
| CN108472931A | 2018-08-31 | |||
| CN108472925A | 2018-08-31 | |||
| CN114275368A | 2022-04-05 | |||
| CN101891033A | 2010-11-24 |
Attorney, Agent or Firm:
LIU, SHEN & ASSOCIATES (CN)
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