CAB-551-0.01 is a low molecular weight cellulose acetate butyrate polymer. It is used as film former and resin modifier in solvent and UV curable coatings.
CAB-551-0.01 has the highest butyrate content and lowest molecular weight of the CAB series. The low molecular weight allows for high solids coatings to be formulated while maintaining a worakble viscosity. The butyrate content of CAB-551-0.01 lends to excellent flexibility as well as compatibility with a very wide range of solvents, resins and even monomers. It is soluble in common acrylic monomers and styrene and can therefore be used in 100% solid reactive coatings and inks. When used in UV curable inks and coatings, CAB-551-0.01 improves leveling, gloss, and hardness. It also helps to reduce the amount of shrinkage due to cross-linking and curing. CAB-551-0.01 can be used by pultruders to enable higher pultrusion speed and prevent internal/external cracking. When formulated into coatings CAB-551-0.01 improves UV stability, flow, leveling, pigment orientation and durability. CAB-551-0.01 can be blended with CAB-381 at a ratio of 1:8 and be used as a film forming polymer system in protective coatings for nail polish. When used in nail polish formulations as a film former, CAB-551-0.01 provides sag resistance and easy application in addition to UV resistance, gloss, and fast drying speeds. In addition, CAB-551-0.01 can be used as a additive in UV and LED curable nail polish to make removal of the gel coat easier. In an experiment to test this, Eastman found that a reduction of acetone soak removal time of over 10 minutes is achievable by adding 9% by weight CAB-551-0.01 to the formulation.
Viscosity ASTM-A, sec: 0.01
Acetyl by GC, wt%: 4 Max
Butyryl by GC, wt%: 50-54
Free acidity, ppm: 300 Max
Moisture, wt%: 3.0 Max
Hydroxyl, wt%: 1.6 - 2.4
Primary Chemistry: Cellulose Acetate Butyrate
Improve flow and leveling
Reduce cratering
Reduce dry time
Provide polishability
Improve sprayability
Pigment dispersion medium
Metallic pigment control
Redissolve resistance
Sag resistance
Enhanced color uniformity
Decreased sand scratch telegraphing
Intercoat adhesion
Improve pultrusion speed
Prevent pultrusion cracking
Incompatibility of film forming resins in monomers used in UV curable coatings, inks, and adhesives.
Shrinkage of UV cured coatings and inks that leads to shrinkage and adhesion failure.
Difficulty removing UV curable nail polish.
Yellowing of nitrocellulose based nail coatings.
100% Solids Coatings; UV Curable inks & Coatings; Automotive Coatings; Nail Care
Cellulose Esters enhance appearance, performance and protection capabilities of wood coatings and finishes. They are used as co-resin or additive to provide benefits to 2K PU/acrylics, acid-cured and UV-cured formulations.
Eastman CAB enhances efficiencies and reduces waste through fewer rejects and reduced need for re-coating while substantially improving finished outcomes.
Eastman Solus™ performance additives are the newest cellulose esters designed for high-solids solvent-borne systems. Solus™ is specifically engineered to meet lower VOC target while improving performance in clear, pigmented and metallic automotive coatings.
Cellulose ester can be formulated into inks as the main film former, co-resin, or additive to improve appearance, performance, and productivity.
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