Heteropolysaccharide S-88

Details Heteropolysaccharide S-88 Heteropolysaccharide S-88

1984-03-08

1985-08-13

Brown, Johnnie R.

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

Organic compounds

Carbohydrates or derivatives

536114, 536 11, 435104, C08B 3700, C12P 1906

Patent

active

045351538

ABSTRACT:
The new heteropolysaccharide S-88, prepared by fermentation of an unnamed Pseudomonas species, ATCC 31554, has valuable properties as a thickening, suspending and stabilizing agent in aqueous systems. It is especially useful in formulating oil well drilling fluids and muds. Its chemical composition is 3.2-7% acyl groups, 11.8-18.7% glucuronic acid; and the neutral sugars mannose, glucose, and rhamnose in the approximate molar ratio 1:2:2.

REFERENCES:
patent: 3960832 (1976-06-01), Kang et al.
patent: 4211774 (1980-07-01), Kang et al.
patent: 4304906 (1981-12-01), Kang et al.
patent: 4326053 (1982-04-01), Kang et al.
patent: 4342866 (1982-08-01), Kang et al.

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