Title:
FLAME-RETARDANT CORRUGATED CARDBOARD AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2022/255367
Kind Code:
A1
Abstract:
Provided are a low-cost and highly flame-retardant liner and a flame-retardant corrugated cardboard, wherein the liner, compared to conventional liners, is resistant to permeation of a flame retardant and allows a flame-retardant layer to be formed on a surface thereof with a small coating amount. A flame-retardant corrugated cardboard (21) is manufactured which comprises a liner (15) comprising a flame-retardant paper including a paper layer (11), a flame-retardant layer (12) containing a flame retardant and a polymer having a molecular weight of 8,000 to 10,000,000 inclusive, and an overcoat layer (13) that protects the flame-retardant layer (12), wherein the overcoat layer (13) is disposed on an upper-surface side with respect to the flame-retardant layer (12).
Inventors:
KINUGAWA AYA (JP)
NOZAKI KENGO (JP)
NOZAKI KENGO (JP)
Application Number:
PCT/JP2022/022144
Publication Date:
December 08, 2022
Filing Date:
May 31, 2022
Export Citation:
Assignee:
RENGO CO LTD (JP)
International Classes:
B32B27/10; B05D1/36; B05D5/00; B05D7/00; B32B7/027; D21H19/12; D21H19/20; D21H19/82; D21H21/34; D21H27/30
Foreign References:
| JP2020139233A | 2020-09-03 | |||
| JP2003034004A | 2003-02-04 | |||
| CN106676964A | 2017-05-17 | |||
| JP2013091210A | 2013-05-16 | |||
| JP2015171816A | 2015-10-01 | |||
| JP2013100406A | 2013-05-23 | |||
| JP2000256997A | 2000-09-19 |
Attorney, Agent or Firm:
KAMADA Naoya et al. (JP)
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