Suspensions and gels of indican and their uses

Details Suspensions and gels of indican and their uses Suspensions and gels of indican and their uses

1982-03-03

1983-02-08

Morris, Theodore

Compositions: coating or plastic

Coating or plastic compositions

Carbohydrate or derivative containing

106197R, 106197C, 106205, 106208, 252312, 252315, 426573, C08L 108, C08L 500

Patent

active

043727859

ABSTRACT:
Indican, a polysaccharide comprising (1.fwdarw.3) glucose, (1.fwdarw.4) mannose, (1.fwdarw.4) rhamnose and (1.fwdarw.3 or 4) -0-(1-carboxyethyl)rhamnose units in a molar ratio of about 2:1:1-2:1 respectively; containing 12-15% by weight acetyl units [.alpha]sub.D.sup.20 about -61.degree.; having principle absorption bands in the infra red band at 3390, 1735, 1615, 1375, 1250 and 1050 cm.sup.-1 ; a solubility of at least 1% by weight in methanol and in ethylene glycol, and an inherent viscosity of about 33.5 dl/g. has useful thixotropic properties and provides a method of modifying the viscosity of a liquid by incorporating indican therein. The liquid may be aqueous or organic solvent-based. Thickened and stabilised products are also provided.

REFERENCES:
patent: 4338432 (1982-07-01), Lawson et al.
Chem. Abst.; 94:45596f, Lawson et al.

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