Paper making and fiber liberation – Processes and products – With coating after drying
Patent
1991-05-29
1993-01-05
Chin, Peter
Paper making and fiber liberation
Processes and products
With coating after drying
162158, 162184, 427395, D21H 2116
Patent
active
051767953
ABSTRACT:
A paper sheet or paperboard, such as boxboard, cardboard and the like has one surface coated with a surfactant to prevent, or at least retard the penetration of moisture through the thickness of the paperboard to the other surface thereof. A method of making a paper sheet or paperboard which has an improved resistance to or retards the penetration of moisture through the thickness of the paperboard comprises the sequential steps of applying a thin coating of a surfactant to one surface of the paperboard, and immediately drying the coated surfactant on the paperboard.
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patent: 3081190 (1963-03-01), Johnson
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patent: 3682696 (1972-08-01), Yasuda
patent: 3881988 (1975-05-01), Yasuda
patent: 4666746 (1987-05-01), Lassus
Casey, Pulp and Paper, 3rd ed. (1981) vol. IV pp. 2486, 2487.
Casey, Pulp and Paper, 3rd ed., vol. III (1981) pp. 1699, 1667, 1683, 1700.
Schwartz, Surface Active Agents and Detergents, vol. II, (1958) pp. 666, 667, 668.
Brown & Williamson Tobacco Corporation
Chin Peter
Lamb Charles G.
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