Use of high molecular weight sulfonate as auxiliary dispersants

Details Use of high molecular weight sulfonate as auxiliary dispersants Use of high molecular weight sulfonate as auxiliary dispersants

1988-09-12

1989-08-22

Lieberman, Paul

Compositions: coating or plastic

Materials or ingredients

Pigment, filler, or aggregate compositions, e.g., stone,...

106503, 106505, 106214, 501146, C08J 712, C09C 306, C09J 306, C04B 3304

Patent

active

048592463

ABSTRACT:
A bulked kaolin pigment is prepared by mixing a small but effective amount of a water-soluble cationic material such as a cationic polyelectrolyte flocculant with a kaolin clay pigment in the presence of water. The resultant bulked clay product can be dispersed to form high solids clay-water slurries useful in making aqueous coating colors suitable for manufacturing lightweight coated publication papers or the pigment can be used as a filler for paper webs. Slurries having stable viscosity during storage and at elevated temperature are prepared by using as the dispersant an anionic sulfonated disperant such as a lignosulfonate or a naphthalene formaldehyde sulfonate complex.

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patent: 4767466 (1988-08-01), Nemeh et al.
patent: 4772332 (1988-09-01), Nemeh et al.

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