Cationic and anionic lignin amine sizing agents

Details Cationic and anionic lignin amine sizing agents Cationic and anionic lignin amine sizing agents

1988-03-28

1988-11-29

Nielsen, Earl

Paper making and fiber liberation

Processes and products

Non-fiber additive

162180, D21D 300, D21H 318

Patent

active

047879602

ABSTRACT:
Lignin amines are disclosed which are characterized by high nitrogen content and are water soluble at both alkaline and acidic pH values. The lignin amines have utility as flocculants, filtration aids, precipitants, scale inhibitors, asphalt emulsifiers, fluid loss additives, oil well cement additives, corrosion inhibitors, retention aids, cationic dispersants, and tall oil pitch emulsifiers.

REFERENCES:
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patent: 3407188 (1968-10-01), Cavagna
patent: 3470148 (1969-09-01), Allan
patent: 3790606 (1974-02-01), Sellet
patent: 3857830 (1974-12-01), Briggs
patent: 3935101 (1976-01-01), Briggs
patent: 4065349 (1977-12-01), Bateman et al.
patent: 4455257 (1984-06-01), Hoftiezer et al.

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