Cellulose and guar gum

Microcrystalline cellulose and carrageenan microcrystalline cellulose and carboxymethylcellulose sodium microcrystalline cellulose and guar gum powdered cellulose silicified microcrystalline cellulose. 

Comments Avicel CE-15 (EMC Biopolymer) is a coprocessed mixture of microcrystalline cellulose and guar gum used in chewahle tablet formulations. 

The above descriptions show the monomeric structures of starch, dextrin, cellulose, and guar gum. In reality, these polysaccharides can be extracted from different sources and the chain length and configuration, molecular weights, and the contents of impurities may vary considerably. Generally, starches have been used mainly as flocculants or flotation depressants for iron oxide minerals and phosphate minerals while the associated silica is floated. Dextrin has been mainly tested as depressants for inherently hydrophobic minerals such as talc, molybdenite, and coal [96]. Applications of polysaccharides in other mineral systems, both in the laboratory and in commercial processes, have also been frequently reported. As can be seen, the polysaccharides have been used or tested as selective depressants in practically all types of mineral systems, ranging from oxides, sulfides, salt-type, and inherently hydrophobic minerals. 

Thickeners (viscosifiers and gelling agents] they are additives used to increase the drilling mud viscosities and gel strength at low concentrations. Among these additives are bentonite, xanthan gum, carboxymethyl cellulose, and guar gum. 

Cross-Linking of Polyols. Polyols such as natural polysaccharides, eg, cellulose, starch, guar gum and their derivatives, and polyvinyl alcohol and its derivatives can be cross-linked by organic titanates. 

High fluid injection rates are often required. For this reason, friction reducers are often used in acid fracturing. These include polyacrylamide and acrylamide copolymers, guar gum, hydroxyethyl cellulose, and karaya gum (108)... 

The natural polymers in common use are cellulose, lignin, chitin, starch and guar gum. The natural products had complete... 

Several coprocessed mixtures of microcrystalline cellulose with other excipients such as carrageenan, carboxymethylcellulose sodium, and guar gum are commercially available see Section 17. 

Examples of polysaccharides from higher plants include starch, cellulose, and exudate gums like arabinogalac-tan, guar gum, and gum arabic. 

A recent patent describes the use of poly(diallylamine)-epichlorohydrin, which is a cationic resin, for crosslinking of nonionic or anionic polymers. This cationic resin has been successfully used to crosslink anionic polymers of cellulose and guar, xanthan gum, and partially hydrolyzed polyacrylamides The nonionic polymers which can be crosslinked with this cationic resin include polyacrylamide,... 

Carboxy methyl cellulose (CMC) and guar gum that both find use in the paper industry. 

Semisynthetic materials—This includes modified celluloses (microcrystalline, carboxymethyl, and methyl), modified gums (derivatives of pectin, alginates, locust bean gum, and guar gum), and microbiaT fermentation gums (dextran and xanthan). 

Most common hydrocolloids are carboxy-methyl-cellulose, xanthan, and guar gums, sometimes used in combination. 

Shellac, - gum arabic, - gelatine, sodium alginates, - cellulose ethers, - locust and - guar gum are used as thickeners and binders ... 

In context with RR, the following w. should be mentioned alginates (- sodium alginate) ->car-boxymethyl cellulose - carrageenan - guar gum - locust gum gum arabic - hydroxyethyl cellulose - hydroxypropyl cellulose - methyl-cellulose - mixed ethers of cellulose ->pectin, - starches, starch esters, - starch ethers, - oxidized starches, -+dextrins, - starch hydrolysis products, - maltodextrins and their derivatives, - dextran, - scleroglucan, - maltodextrins and - xanthan. 

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