Ethynyl terminated imidothioethers and resins therefrom

Details Ethynyl terminated imidothioethers and resins therefrom Ethynyl terminated imidothioethers and resins therefrom

1988-07-14

1989-08-29

Anderson, Harold D.

Organic compounds -- part of the class 532-570 series

Organic compounds

Four or more ring nitrogens in the bicyclo ring system

525426, 526262, 528321, 548141, 548476, C08G 7516

Patent

active

048618829

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.

REFERENCES:
patent: 4282347 (1981-08-01), Tieszen et al.
patent: 4365068 (1982-12-01), Darms et al.

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