Paper making and fiber liberation – Processes and products – Non-fiber additive
Patent
1975-06-25
1977-02-08
Bashore, S. Leon
Paper making and fiber liberation
Processes and products
Non-fiber additive
260 64, 260 65, D21D 300
Patent
active
040070840
ABSTRACT:
Paper of high dry strength is produced by forming an aqueous solution of cellulose fibers and adding thereto a polymeric product of acetone, formaldehyde and polyethylene polyamine, which product is prepared at reflux temperature in presence of a catalytic amount of a strong inorganic acid and has a mol ratio of 1:3:0.5, respectively.
Chan Lock-Lim
Guitard Arthur Herbert
Bashore S. Leon
Borden Products Limited
Chin Peter
Kap George A.
Maskas George P.
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