Cross-linkable polymer composition
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United States of America Patent
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Mar 29, 2005
Grant Date -
Aug 14, 2003
app pub date -
Nov 7, 2002
filing date -
Nov 7, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention pertains to a polymer obtainable from the steps: polymerizing a mixture, that is substantially free or organic solvents, of ethylenically unsaturated monomers which consist for at least 70% of methacrylates, and which comprises specific chain transfer agents, .alpha.-methylstyrene dimer being preferred, to form a first polymer, aqueous emulsion polymerizing a mixture comprising ethylenically unsaturated monomers in the presence of the first polymer to form a dispersion of a water-insoluble second polymer, wherein these steps are preferably performed in the absence or the substantial absence of a surfactant.
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