Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From ketone or ketene reactant
Patent
1989-07-14
1991-02-26
Anderson, Harold D.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From ketone or ketene reactant
528222, 528224, 528370, 528371, 528372, 528373, C08G 1600, C08G 7516
Patent
active
RE0335452
ABSTRACT:
A process, and product produced therefrom, for preparing a high molecular weight poly(arylene sulfide ketone) from the reaction product of an alkali metal bisulfide with an alkali metal hydroxide, employing molar excess of alkali metal bisulfide with respect to the alkali metal hydroxide. A process, and product produced therefrom, for preparing a high molecular weight poly(arylene sulfide ketone) employing an alkali metal sulfide and an alkali metal hydrosulfide, wherein the alkali metal [sulfide] hydrosulfide is added in a molar excess with respect to the alkali metal [hydrosulfide] sulfide.
REFERENCES:
patent: 3876591 (1975-04-01), Campbell
patent: 3953400 (1976-04-01), Dahl
patent: 4232142 (1980-11-01), Barr et al.
patent: 4361693 (1982-11-01), Jansons
patent: 4415729 (1983-11-01), Scoggins et al.
patent: 4716212 (1987-12-01), Gaughn
Chem. Abstracts, vol. 97, 1982, 216826z.
Indian Journal of Chemistry, D. Mukherjee et al., Section A, 1982, pp. 501-502.
Anderson Harold D.
Goetz Kenneth D.
Phillips Petroleum Company
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