Paper making and fiber liberation – Processes and products – Plural fiber containing
Patent
1993-03-22
1995-01-10
Chin, Peter
Paper making and fiber liberation
Processes and products
Plural fiber containing
1621682, 162189, D21H 1114
Patent
active
053804031
ABSTRACT:
The addition of an amine functional poly(vinyl alcohol) in a process for making recycled paper products results in improvements in both the wet and dry strength of the resultant products. The amine functional poly(vinyl alcohol) used in the process is formed by the hydrolysis of vinyl acetate/vinyl amide copolymers or vinyl acetate/allyl amine copolymers, or optionally may be formed by the reaction of poly(vinyl alcohol ) with an amino-aldehyde dialkyl acetal.
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Pickering Timothy L.
Robeson Lloyd M.
Air Products and Chemicals Inc.
Chin Peter
Rodgers Mark L.
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