THERMOSETTING RESIN ADHESIVE CONTAINING IRRADIATED THERMOPLASTIC TOUGHENING AGENT
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United States of America Patent
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Nov 8, 2012
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Oct 7, 2009
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Oct 7, 2009
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Abstract
Thermosetting resins are provided that are toughened with an irradiated thermoplastic toughening agent. The resins have reduced levels of solvent-induced micro crack formation and do not lose their adhesiveness when attacked by solvent. The thermoplastic toughening agent is treated with a sufficient amount of high-energy radiation (e.g. electron beam or gamma rays) to cause reductions in solvent-induced micro crack formation and solvent-induced loss of adhesiveness when compared to the same toughened thermosetting resin in which a non-irradiated version of the thermoplastic toughening agent is used.
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