Compatibility agent for aqueous polypigmentary suspensions conta

Details Compatibility agent for aqueous polypigmentary suspensions conta Compatibility agent for aqueous polypigmentary suspensions conta

1989-10-10

1992-04-28

Michl, Paul R.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

523333, 524425, 526212, 106487, C09C 102, C01F 1146, C08F23002

Patent

active

051090902

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: 2284585 (1942-05-01), McCleary et al.
patent: 4450013 (1984-05-01), Hirsch et al.
patent: 4774303 (1988-09-01), Denzinger et al.
patent: 4842651 (1989-06-01), Ravet et al.
patent: 4868228 (1989-09-01), Gonnet et al.

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