Ethynyl terminated imidothioethers and resins therefrom
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United States of America Patent
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Aug 29, 1989
Grant Date -
N/A
app pub date -
Jul 14, 1988
filing date -
Jul 14, 1988
priority date (Note) -
Expired
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Abstract
Ethynyl terminated imidothioethers (ETIs) are prepared by the reaction of a dimercaptan, such as 4,4'-dimercaptodiphenyl ether, and an ethynyl containing maleimide, such as N-(3-ethynylphenyl)maleimide. Blends of thse ETIs and ethynyl terminated polymeric materials, such as ethynyl terminated sulfones and ethynyl terminated arylene ethers, are also prepared. These resin blends exhibit excellent processability, and the cured blends show excellent fracture toughness and solvent resistance, as well as excellent adhesive and composite properties.
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