Curable pressure sensitive adhesive compositions
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United States of America Patent
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May 3, 2005
Grant Date -
Jul 1, 2004
app pub date -
Dec 30, 2002
filing date -
Dec 30, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
Curable pressure sensitive adhesive compositions comprising an acrylate copolymer, a mono-acrylate oligomer, a multi-acrylate oligomer having from 2 to 5 acrylate functional groups per molecule, and a photoinitiator, the adhesive exhibiting pressure sensitive adhesive characteristics and forms at least a semi-interpenetrating polymer network when cured; wherein the semi-IPN has an average molecular weight between crosslinks (Mc) greater than about 3000, and the cured adhesive has a peel strength greater than about 40 N/dm. Embodiments of the adhesive compositions, when cured, are optically clear and resistant to heat and moisture.
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