Aqueous polysaccharide compositions

Details Aqueous polysaccharide compositions Aqueous polysaccharide compositions

1987-09-04

1990-02-13

Terapane, John F.

Compositions

Leather or fur treating

252 8551, 252 851, 252 8513, 536 88, 536114, C09K 702

Patent

active

049004573

ABSTRACT:
The invention provides aqueous polysaccharide compositions comprising 0.03 to 5% w/v of a water-soluble polysaccharide, 5 to 80% w/v of at least one salt of at least one mono- or divalent cation, wherein at least 0.05% w/v, based on the composition, of the at least one salt is formate, the balance of the at least one salt, if any, being at least one halide, a process for preparing the compositions, and their use in well-drilling operations.

REFERENCES:
patent: 4299825 (1981-11-01), Lee
patent: 4427556 (1984-01-01), House et al.
patent: 4486340 (1984-12-01), Glass
patent: 4536297 (1985-08-01), Loftin et al.
patent: 4566977 (1986-01-01), Hatfield
patent: 4599180 (1986-07-01), Vio et al.
patent: 4607099 (1986-08-01), Kanda et al.
patent: 4614601 (1986-12-01), Sekimoto et al.
patent: 4634667 (1987-01-01), Linton et al.
patent: 4661266 (1987-04-01), Kanda et al.

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