Additive composition for use in papermaking

Details Additive composition for use in papermaking Additive composition for use in papermaking

1977-12-07

1979-04-03

Marquis, Melvyn I.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

162181A, 260 296M, 260 296MM, C08L 3304

Patent

active

041476824

ABSTRACT:
An additive composition for use in papermaking comprises a water-soluble polymer having in its molecule --COOH groups and/or --SO.sub.3 H groups, polyaluminum chloride and an aqueous solvent. Because of formation of a kind of crosslinking structure between the water-soluble polymer molecules through the polyaluminum chloride, the above composition exerts an effect of enhancing the paper strength when used alone and an effect of enhancing both the sizing effect and the paper strength when used together with a sizing agent. The composition further increases the paper strength when used in combination with a conventional paper-strength improver.

REFERENCES:
patent: 3128223 (1964-04-01), von Rosenberg et al.
patent: 3755236 (1973-08-01), Puskas
patent: 3890180 (1975-06-01), Grosse et al.
patent: 3993830 (1976-11-01), Dickson et al.
patent: 4021398 (1977-05-01), Gilman et al.

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