Composition and method for paper processing

Details Composition and method for paper processing Composition and method for paper processing

2007-09-14

2011-10-18

Fortuna, José A (Department: 1741)

Paper making and fiber liberation

Processes and products

Non-fiber additive

C162S158000, C162S164100, C162S168100, C162S168200, C162S168300, C162S181600, C162S181800

Reexamination Certificate

active

08038846

ABSTRACT:
According to the present invention, a process is provided for making paper or board comprising forming a cellulosic suspension that may or may not comprise a filler, flocculating the cellulosic suspension, draining the cellulosic suspension on a screen to form a sheet, wherein the cellulosic suspension is flocculated using a flocculation system comprising the sequential or simultaneous addition of a siliceous material and an organic, cationic or anionic, water-in-water or dispersion micropolymer in a salt solution.

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