Process for the preparation of protective colloid-stabilized, emulsifier-free, aqueous dispersions
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United States of America Patent
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Jan 11, 2005
Grant Date -
Jan 30, 2003
app pub date -
Jul 3, 2002
filing date -
Jul 5, 2001
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Abstract
Process for the preparation of protective colloid-stabilized, emulsifier-free, aqueous dispersions based on at least two monomers selected from vinylaromatics, 1,3-dienes and/or (meth)acrylates, in the presence of assistants and, if required, further comonomers in an amount of from 0.1% by weight to 20% by weight, based on the total amount of monomers, wherein at least 10% by weight of the total amount of water are added to the reaction vessel only after the monomers have been added to the reaction vessel and the conversion is at least 40%, based on 100% of the monomers.
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