Acrylic-modified epoxy resin adhesive compositions with improved rheological control
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United States of America Patent
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Apr 20, 1993
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N/A
app pub date -
Jun 9, 1992
filing date -
Nov 13, 1990
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Abstract
A thixoropic adhesive composition exhibiing good sag resistance is prepared comprising a mixture of a polymer-modified epoxy resin and a rheological control agent. The polymer-modified epoxy resin is preferably a dispersion of acrylic elastomer in an epoxy resin in which the acrylic elastomer particles have added hydroxyl functionality which interacts favorably with rheological control agents, such as fumed silica. Acrylic epoxy resin dispersions containing added hydroxyl functionality give improved rheological control.
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