Compatibility agent for aqueous polypigmentary suspensions conta

Paper making and fiber liberation – Processes and products – With coating after drying

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Details

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.

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