Polysaccharides, methods for preparing such polysaccharides and

Details Polysaccharides, methods for preparing such polysaccharides and Polysaccharides, methods for preparing such polysaccharides and

1984-09-26

1986-04-01

Griffin, Ronald W.

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

Organic compounds

Carbohydrates or derivatives

106170, 536 90, 536 91, C08B 1100, C08B 1108, C08B 11193

Patent

active

045799423

ABSTRACT:
Water-soluble polysaccharides, including cellulose ethers, containing pendent vicinal dihydroxy structure capable of cis geometry, which upon crosslinking with a polyvalent metal, have shear-thermal stability characteristics of at least about 30 at 250.degree. F., are useful in oilfield applications.

REFERENCES:
patent: 3727688 (1973-04-01), Clampitt
patent: 3848673 (1974-11-01), Clampitt et al.
patent: 3978928 (1976-09-01), Clampitt
patent: 4001210 (1977-01-01), Engelskirchen et al.
patent: 4013821 (1977-03-01), Engelskirchen et al.
patent: 4096326 (1978-06-01), Reid
patent: 4523010 (1985-06-01), Lukach et al.

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