Epoxy Resin System Containing Insoluble and Partially Soluble or Swellable Toughening Particles for Use in Prepreg and Structural Component Applications
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United States of America Patent
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Jun 28, 2012
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Dec 22, 2011
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Dec 22, 2010
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Abstract
Resin compositions comprise an epoxy thermosetting resin; and at least two types of interlaminar toughening particles; wherein a first type of interlaminar toughening particles are insoluble in said epoxy thermosetting resin; wherein a second type of interlaminar toughening particles are partially soluble or swellable in said epoxy thermosetting resin. Prepregs and structural compounds contain these resin compositions, which are useful in the aerospace industry.
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