Method for production of sulfhydryl compounds

Details Method for production of sulfhydryl compounds Method for production of sulfhydryl compounds

1976-10-04

1977-10-04

Turer, Richard B.

Chemistry: electrical and wave energy

Processes and products

Processes of treating materials by wave energy

204158R, 20415918, 2041592, 204162R, 260 4237, 260 79, 260830S, C08F 246, B01J 110

Patent

active

040522814

ABSTRACT:
An improved process is disclosed for production of sulfhydryl-terminated compounds by reaction of an allene and hydrogen sulfide initiated with ultraviolet light of wavelength above about 2600 Angstroms to obtain a colorless product of improved purity. The invention also includes the polymerization of an unsaturated hydrocarbon with the sulfhydryl-terminated product to prepare a sulfhydryl-terminated polythioether. These compounds are useful as chemical intermediates and precursors of elastomeric sealants, such as architectural sealants.

REFERENCES:
patent: 2398481 (1946-04-01), Vaughan et al.
patent: 2411983 (1946-12-01), Vaughan et al.
patent: 2873239 (1959-02-01), Nummy et al.
patent: 3398200 (1968-08-01), Griesbaum et al.
patent: 3412001 (1968-11-01), Edwards
patent: 3488270 (1970-01-01), Griesbaum et al.
patent: 3992289 (1976-11-01), Dannels et al.

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