Rigid-when-wet paperboard containers and their manufacture

Stock material or miscellaneous articles – Structurally defined web or sheet – Nonplanar uniform thickness material

Patent

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Details

156210, 156324, 156277, 156335, 156292, 229 31, 428531, B32B 328

Patent

active

040469352

ABSTRACT:
Rigid-when-wet, but foldable, corrugated paperboard and process of making same by applying phenolic resin to contiguous surfaces of the outer liner, the medium, and the inner liner without substantially altering the hygroscopicity of the exposed faces of the liners, and adhering the three components together before the resin is cured.

REFERENCES:
patent: 1592824 (1926-07-01), Fairchild
patent: 2145334 (1939-01-01), Bergstein
patent: 3164506 (1965-01-01), Lake
patent: 3189502 (1965-06-01), Little
patent: 3265550 (1966-08-01), Lindqvist
patent: 3307994 (1967-03-01), Scott
patent: 3336246 (1967-08-01), Golick et al.
patent: 3399819 (1968-09-01), Rennie et al.
patent: 3431162 (1969-03-01), Morris
patent: 3463690 (1969-08-01), Converse et al.
patent: 3523058 (1970-08-01), Shick
patent: 3682762 (1972-08-01), Le Blanc

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