Paper making and fiber liberation – Processes and products – With coating after drying
Patent
1991-08-15
1992-09-15
Chin, Peter
Paper making and fiber liberation
Processes and products
With coating after drying
1621681, 1621682, 1621813, 427391, D21H 1956
Patent
active
051475065
ABSTRACT:
Copolymers having the general formula: ##STR1## are useful as compatibility, dispersion and grinding agents for aqueous pigmentary suspensions formulated from a mixture of mineral pigments, at least one of which is hydrated calcium sulfate. These suspensions are useful in papermaking.
REFERENCES:
patent: 4051093 (1977-09-01), Wendel et al.
Mongoin Jacques
Ravet Georges
Suau Jean-Marc
Chin Peter
Coatex S.A.
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