Guar gum composition and process for making it
AssigneeRhone-Poulenc Inc.
InventorMichael H. Yeh
Life of this patent
Estimating the term…
Abstract
Guar gum which demonstrates greater than 75% light transmission at a wavelength of from about 500-600 nanometers when dispersed in water in the amount of 0.5 parts per 100 parts water and the process for producing such guar gum is disclosed.
Claims13
A process for producing a polygalactomannan comprising the steps of:
- (a) treating polygalactomannan splits with a 12 to 30 weight percent solution of an aqueous base solution;
- (b) washing said base treated splits one or more times with water, an organic solvent or mixtures thereof;
- and
- (c) recovering the product produced thereby;
- where in step (a) about 120 to about 140 parts of aqueous base solution are added for every 100 parts of polygalactomannan splits.
Guar gum which demonstrates greater than 75% light transmission at a wavelength of from about 500-600 nanometers when dispersed in water in the amount of 0.5 parts per 100 parts water produced by the following process:
- (a) treating guar gum splits with a 12 to 30 weight percent solution of an aqueous base solution;
- (b) washing said base treated splits one or more times with water, an organic solvent or mixtures thereof;
- and
- (c) recovering the product produced thereby:
- wherein in step (a) about 120 to about 140 parts of aqueous base solution are added for every 100 parts of polygalactomannan splits.
An oil field chemical, personal care chemical, cosmetic, textile chemical, dye, absorbent material, food product, explosive, agricultural product, paper chemical or coating composition including guar gum which demonstrates greater than 75% light transmission at a wavelength of from about 500-600 nanometers when dispersed in water in an amount of 0.5 parts per 100 parts water produced by the following process:
- (a) treating guar gum splits with a 12 to 30 weight percent solution of an aqueous base solution;
- (b) washing said base treated splits one or more times with water, an organic solvent or mixtures thereof;
- and
- (c) recovering the product produced thereby;
- wherein in step (a) about 120 to about 140 parts of aqueous base solution are added for every 100 parts of polygalactomannan splits.
Dependencies are inferred from the claim text.