Paper making and fiber liberation – Processes and products – Non-fiber additive
Patent
1989-06-19
1992-05-19
Chin, Peter
Paper making and fiber liberation
Processes and products
Non-fiber additive
162179, 162183, 162184, 162185, 162186, D21H 1705
Patent
active
051145383
ABSTRACT:
Sizing compounds particularly cyclic acid anhydrides are used as such or in solution with non-aqueous protic and/or protic solvents to mass-size cellulose products such as paper, board, cardboard and similar cellulose and synthetic fibre products. In a preferred embodiment, the cyclic acid anhydrides or their solutions in inert solvents are introduced into the wet-end of the paper machine at a position where the paper slurry is in a highly turbulent state so that they are immediately homogenized and reacted with the cellulose stock.
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Chin Peter
Exxon Chemical Patents Inc.
Maggio R. A.
Murray, Jr. J. B.
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