Process for the production of polyacrylic acids

Details Process for the production of polyacrylic acids Process for the production of polyacrylic acids

1993-06-17

1994-03-29

Schofer, Joseph L.

Solid material comminution or disintegration

Processes

With application of fluid or lubricant material

106464, 423430, B02C 100

Patent

active

052977404

ABSTRACT:
The invention relates to a process for producing polyacrylic acids and copolymers of acrylic acid with up to 50 mol-% of comonomers. These compounds have a molecular weight of less than 100,000, measured at a pH-value of 8, and 10 to 60 mol-% are neutralized with calcium hydroxide. The invention also relates to the use of these products as grinding and dispersing aids for calcium carbonate.

REFERENCES:
patent: 3764502 (1973-10-01), Restaino
patent: 4486489 (1984-12-01), George
patent: 4840985 (1989-06-01), Gonnet et al.
patent: 4845191 (1989-07-01), Hautier
patent: 4868228 (1989-09-01), Gonnet et al.
patent: 4914170 (1990-04-01), Chang et al.

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