Film former—cellulose esters

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Cellulose esters are polymers used by the nail care industry as film formers. Films formed from cellulose esters have fast solvent release. Compared to nitrocellulose, cellulose esters are nonyellowing and have excellent clarity and stability. They are nontoxic and easily pigmented. Cellulose acetate butyrate (CAB) and cellulose acetate propionate (CAP) resins are available in a range of viscosities and solubilities to meet formulators' needs.



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Eastman Cellulose Acetate Butyrate CAB-321-0.1 is a cellulose ester with a low butyryl content (32.5%) and low molecular weight. Designed for use in automotive basecoats, it is resistant to attack and resistant to redisolve by solvents typical in clearcoats. It has a viscosity of 0.10 sec and 0.38 poise. CAB-321-0.1 is supplied as a fine white powder.

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Eastman Cellulose Acetate Butyrate CAB-381-0.1 is a cellulose ester with medium butyryl content and low viscosity. It was designed for use where low application viscosities at relatively high solids levels are needed. CAB-381-0.1 is used when lower viscosity for higher solids formulations and increased toughness with excellent surface hardness is desired. It is used in automotive basecoats for metallic flake control and is supplied as a dry, free-flowing powder.

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Eastman Cellulose Acetate Butyrate CAB-381-0.5 is a cellulose ester with medium butyryl content and low viscosity. It was designed for use where low application viscosities at relatively high solids levels is needed. It is supplied as a dry, free-flowing powder.

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Eastman Cellulose Acetate Butyrate CAB-381-20 is a cellulose ester with medium butyryl content, very high ASTM(A) viscosity, and great rheological modification. It offers a combination of solubility and compatibility, moisture resistance, excellent surface hardness and good film strength. It is supplied as a dry, free-flowing powder.

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Eastman Cellulose Acetate Butyrate (CAB-551-0.01) has many unique attributes that will serve useful across many different coating application areas. It has the lowest Tg (glass transition temperature) of the CAB portfolio.

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Eastman Cellulose Acetate Butyrate CAB-551-0.2 is a cellulose ester with high butyryl content and relatively low molecular weight. Its good compatibility with various resin systems and its solubility in a wide variety of solvents makes it useful as an additive in numerous coating compositions, including high-solids and thermoset coatings, and as a modifier for UV-curing systems.

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Eastman™ Cellulose Acetate Propionate CAP-482-0.5 is a low odor, free-flowing powder and is especially suitable for use in inks, overprint varnishes, and nail lacquer topcoats.

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