blanose™ carboxymethylcellulose (CMC)

chemistry: cellulosics

INCI/chemical name: cellulose gum

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Aqualon™ and blanose™ CMC are anionic, water-soluble polymers. CMC is made by reacting alkali cellulose with sodium monochloroacetate under rigidly controlled conditions. The resultant polymer is purified and dried. Purified cmc for personal care and cosmetic applications is typically sold at 99.5 percent minimum purity.

Physical and solution properties of cmc can be varied through manipulation of degree of substitution (DS) and molecular weight. CMC is typically offered in three different DS ranges and a broad range of molecular weights. A variety of CMC grades are available to meet your formulation needs. Ashland provides cmc under the tradenames aqualon™ cmc and blanose™ cmc depending on site of manufacture.

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features and benefits:

acts as a thickener for aqueous toothpaste systems
provides shear-thinning rheology properties
inhibits syneresis formation in toothpaste
provides initial wet tack to denture adhesives

applications:

toothpastes
denture adhesives creams and powders

grades:

Selecting the CMC grade for your oral care formulation will depend on the desired properties of the final formulation. Many grades are available. The following tables provide starting points. The Ashland team can help you select the optimum CMC grade.