Carboxymethyl hydroxyethyl cellulose composition

Details Carboxymethyl hydroxyethyl cellulose composition Carboxymethyl hydroxyethyl cellulose composition

1982-08-30

1984-12-04

Lovering, Richard D.

Compositions

Preservative agents

Anti-corrosion

252 85C, 2523154, 252 855R, 25218831, 536 91, 106197C, C08L 126, E21B 4326, C09K 702

Patent

active

044863357

ABSTRACT:
A water-soluble carboxymethyl hydroxyethyl cellulose having a carboxymethyl degree of substitution of about 0.1 to about 0.25, preferably of about 0.15 to about 0.20, and having a hydroxyethyl molar substitution of greater than about 1.0 possesses unexpected qualities. When this composition is crosslinked with a suitable aluminum ion in an aqueous solution it forms a gel which exhibits no significant thinning at temperatures less than about 200.degree. F.

REFERENCES:
patent: 3092619 (1963-06-01), Kohler et al.
patent: 3446795 (1965-04-01), Boudreaux
patent: 3448100 (1969-06-01), Callihan et al.
patent: 3898165 (1975-08-01), Ely et al.
patent: 4035195 (1977-07-01), Podlas
patent: 4110231 (1978-08-01), Swanson
patent: 4239629 (1980-12-01), Sauber

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