Modificaton of starch

Details Modificaton of starch Modificaton of starch

1997-01-17

1998-09-15

Robinson, Douglas W.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbohydrates or derivatives

536102, 536111, C07H 100, C08B 3100

Patent

active

058080538

ABSTRACT:
The invention generally relates to a process for modification of cationic starch at which the cationic starch is treated, in the presence of water, with an aluminium compound. The modified cationic starch is useful as a retention agent. The invention also relates to a method for improving retention and/or dewatering in papermaking at which cationic starch is modified by the process.

REFERENCES:
patent: 3136646 (1964-06-01), Elizer et al.
patent: 3640842 (1972-02-01), Hullinger et al.
patent: 4040862 (1977-08-01), Voigt et al.
patent: 5294301 (1994-03-01), Kumar et al.
Nordic Pulp and Paper Research Journal No. Jan. 1993, Starch and alumina/silica based compounds as microparticle retention aid system, pp. 21-26.
Abstract, 68-65533, 1968 (CA 739365).
Abstract, 94-147676, Apr. 5, 1994 (JP 6092629).

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