Process for the preparation of large-particle, aqueous plastic dispersions
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United States of America Patent
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Mar 15, 1994
Grant Date -
N/A
app pub date -
Dec 21, 1992
filing date -
Dec 19, 1991
priority date (Note) -
Expired
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Abstract
The invention provides a process for the preparation of large-particle, aqueous plastic dispersions, which permits targeted adjustment of particle size. The process comprises a system which controls the particle size and comprises the step of polymerizing a monomer in the presence of an anionic emulsifier; a substantially non-branched, nonionic, water-soluble polymer auxiliary; and alkali metal and/or ammonium ions not bonded to emulsifier. The polymer auxiliary can be prepared reproducibly with regard to its agglomerating effect.
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