Phosphoric acid resistant polymaleimide prepolymer compositions
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United States of America Patent
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Dec 6, 2016
Grant Date -
Sep 5, 2013
app pub date -
Apr 18, 2013
filing date -
Mar 17, 2009
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Abstract
The present invention relates to a phosphoric acid resistant advanced polymaleimide prepolymer composition including a polymaleimide prepolymer resulting from the advancement reaction of a polyimide and an alkenylphenol, alkenylphenol ether or mixture thereof in the presence of an amine catalyst; a solvent and a heteropolyacid. The phosphoric acid resistant advanced polymaleimide prepolymer composition may be used in various applications such as prepregs, laminates, printed circuit boards, castings, composites, molded articles, adhesives and coatings.
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