Method for production of sulfhydryl compounds using ultra-violet

Details Method for production of sulfhydryl compounds using ultra-violet Method for production of sulfhydryl compounds using ultra-violet

1974-12-23

1976-11-16

Turer, Richard B.

Chemistry: electrical and wave energy

Processes and products

Processes of treating materials by wave energy

20415918, 204162R, 260 4237, 260 79, 260830S, B01J 110

Patent

active

039922898

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 sulhydryl-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.

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