Waterproof paperboard and method for producing same

Details Waterproof paperboard and method for producing same Waterproof paperboard and method for producing same

1974-12-24

1976-06-08

McCamish, Marion E.

Stock material or miscellaneous articles

Structurally defined web or sheet

Nonplanar uniform thickness material

427372, 427392, 427442, 428184, 428486, B32B 328, B32B 300

Patent

active

039625095

ABSTRACT:
Waterproof corrugated paperboard and other paper constructions and a process for producing such waterproof paperboard by impregnating paperboard with a mixture containing from about 10 to about 50 weight percent tung oil and from about 90 to about 50 weight percent paraffin wax and curing the impregnated paper at a temperature from about 80.degree.C to about 163.degree.C.

REFERENCES:
patent: 2204612 (1940-06-01), Musher
patent: 3137588 (1964-06-01), Taylor
patent: 3382098 (1968-05-01), Fauber et al.
patent: 3653958 (1972-04-01), Kohn et al.
patent: 3692564 (1972-09-01), Gonta et al.

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