Pressure Sensitive Adhesives
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United States of America Patent
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Issued Date -
Dec 3, 2009
app pub date -
Jun 1, 2007
filing date -
Jun 1, 2006
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
PSAs having high shear stability are disclosed. The PSAs are obtained from an aqueous dispersion comprising an effective amount of surfactant mixture comprising at least one ionic surfactant comprising a plurality, preferably at least three, aromatic rings, at least one electronegative substituent selected from a mono valent oxy substituted sulfo anion, and/or a mono valent oxy substituted phospho anion, and optionally at least one substituent comprising one or more repeating alkoxy units (e.g. Soprophor 4D 384 and/or DPOS-45), and at least one non-ionic surfactant (e.g. Abex 2535) and a monomer composition comprising: at least one hydrophobic monomer (Component I), at least one hydrophilic monomer (Component II) at least one partially hydrophilic monomer (Component III). The dispersion forms PSAs which are sufficiently stable under high shear to be curtain coatable.
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