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EC / List no.: 618-381-2
CAS no.: 9004-36-8
Cellulose acetate butyrate (CAB) is a mixed ester thermoplastic derivative of cellulose acetate that contains both acetate and butyrate functional groups.
Cellulose acetate butyrate has improved weathering resistance and lower moisture absorption compared to cellulose acetate.
The exact properties of a Cellulose acetate butyrate compound is determined by the composition of butyrate vs acetate functional groups.
Cellulose acetate butyrate is commonly used as a binder or additive in coatings
Chemical Properties
white granular crystalline powder
Uses
Contact lens material (hydrophobic).
Cellulose acetate butyrate is the most commonly used organic cel- lulose ester for coating applications.
Industrial uses
Commonly called butyrate or Cellulose acetate butyrate, it is somewhattougher and has lower moisture absorptionand a higher softening point than acetate.
Cellulose acetate butyrate is made by the esterification of cellulosewith acetic acid and butyric acid in the presenseof a catalyst.
Cellulose acetate butyrate is particularly valuedfor coatings, insulating types, varnishes, andlacquers.
Special formulations with good weatheringcharacteristics plus transparency are used foroutdoor applications such as signs, light globes,and lawn sprinklers.
Clear sheets of butyrateare available for vacuum-forming applications.
Other typical uses include transparent dial covers,television screen shields, tool handles, andtypewriter keys.
Extruded pipe is used for electricconduits, pneumatic tubing, and low-pressurewaste lines. Cellulose acetate butyrate alsois used for cable coverings and coatings.
Cellulose acetate butyrate ismore soluble than cellulose acetate and moremiscible with gums.
Cellulose acetate butyrate forms durable and flexiblefilms.
A liquid cellulose acetate butyrate isused for glossy lacquers, chemical-resistantfabric coatings, and wire-screen windows.
Ittransmits ultraviolet light without yellowing orhazing and is weather-resistant.
CELLULOSE ACETATE BUTYRATE Chemical Properties
Melting point: 127-240 °C
density: 1.25 g/mL at 25 °C(lit.)
refractive index: n20/D 1.475(lit.)
storage temp. : 2-8°C
solubility : Practically insoluble in water, soluble in acetone, in formic acid and in a mixture of equal volumes of methanol and methylene chloride, practically insoluble in ethanol (96 per cent).
form: Granular Crystalline Powder
color: White
Cellulose Acetate Butyrate (CAB-381-0.5) is a cellulose ester with medium butyryl content and low viscosity.
Cellulose acetate butyrate was designed for use where low-application viscosities at relatively high solids levels is needed.
Cellulose acetate butyrate is soluble in a wide range of solvents and compatible with many other resins.
When CAB-381-0.5 is dissolved in appropriate solvents a clear, colorless solution is produced.
Cellulose acetate butyrate will also tolerate the use of solvent blends currently exempt from certain air pollution regulations.
Cellulose acetate butyrate is supplied as a dry, free-flowing powder.
Cellulose acetate butyrate-381-0.5 is based on cellulose, one of the most abundant natural renewable resources, from trees harvested from sustainably managed forests. The calculated approximate bio-content value of 40% for Cellulose acetate butyrate-381-0.5 was determined by using six bio-based carbon atoms per anhyroglucose unit divided by the total number of carbons per anhyroglucose unit.
Although the value reported is not specifically measured for bio-carbon, it can be estimated based on typical partition data.
For applications that require food contact compliance, please refer to Cellulose acetate butyrate-381-0.5, Food Contact.
Applications/uses
Aerosol coatings
Aerospace coatings
Apparel
Architectural coatings
Auto OEM
Auto plastics
Auto refinish
Automotive
Automotive parts & accessories
Automotive protective coatings
Coil coatings
Coil coatings-appliances
Commerical printing inks
Compensation film
Consumer electronics
Exterior architectural coatings
Flexographic printing inks
General industrial coatings
Graphic arts
Gravure printing inks
Industrial electronics
Industrial maintenance
Inks
Leather coatings
Metal coatings
Metal furniture
Metals
Motorcycles
Non-medical housings & hardware for elec
Overprint varnishes
Pack & carton coatings
Packaging coatings non food contact
Packaging inks non food contact
Paints & coatings
Personal care ingredients
Photographic chemicals
Polymer modification
Process additives
Protective coatings
Screen printing inks
Shrink film non food contact
Small appliances non-food contact
Tools
Truck/bus/RV
Wood coatings
PLASTIC & RESIN
ASSOCIATIONS
WPC
EPDA
MAPP
ARPM
BACK
COMPANIES
PRINTING INKS
PAINTS & COATINGS
PLASTIC INDEX
Cellulose Esters
Cellulose Acetate Films
COMPANIES
CELLULOSE ACETATE BUTYRATE (CAB)
PROPERTIES AND APPLICATIONS
Cellulose acetate butyrate (CAB) is a thermoplastic cellulose ester with 30 to 55 wt% butyryl content.
Cellulose acetate butyrate is the most commercially important mixed cellulose ester and has many attractive properties such as low viscosity, high transparency and surface gloss, improved resistance to moisture and ultraviolet light (UV), and good inter-coat adhesion.
Cellulose acetate butyrates are compatbile with many resin systems, including most acrylics, polyesters, phenolics, ureas and isocyanates.
However, they are often incombatible with melamine, urea-formaldehyde and many alkyds.
Both the solubility and miscibility depends on the butyryl content; in general, with increasing butyryl content, the solubility in many resins and solvent increases.
For example, Cellulose acetate butyrate resins with high butyryl content are soluble in many esters, ketones, glycol ethers, blends of alcohols, and aromatic hydrocarbons.
Cellulose acetate butyrate is often used in coating formulations where low application viscosities at relatively high solid content are required.
When added to coating formulations, it improves many coating properties like hardness, leveling, solvent resistance, clarity and gloss while it reduces dry-to-touch time, cratering, orange-peel and blocking.
Due to Cellulose acetate butyrates superior properties, it finds many uses in coatings including metal and wood coatings, gravure and flexographic printing inks, graphic arts, ink jet printing inks, nail lacquer topcoats, automotive clear and base coats, and general industrial coatings.
Advantages
The advantages of Cellulose Acetate Butyrate include:
Better weathering characteristics than Cellulose Acetate or Cellulose Propionate.
Tougher than Cellulose Acetate.
Lower moisture absorption than Cellulose Acetate.
Transparent and glossy surface finish.
Disadvantages
The disadvantages of Cellulose Acetate Butyrate include:
Attacked or swollen by many solvents including chlorinated and aromatic hydrocarbons, alcohols and ketones
More expensive than Cellulose Acetate
Applications
Tool handles, panels for illuminated signs, steering wheels, goggles, bathroom fittings, decorative trim for cars and consumer durables, drawing stencils, pens, pneumatic system traps, blister packaging, laminating with aluminium foil.
Applications are also related to the addition of signs and goggles and the exclusion of graphics films.
Typical Properties
Density (g/cm3): 1.18
Surface Hardness:RR69
Tensile Strength (MPa):35
Flexural Modulus (GPa):1.3
Notched Izod (kJ/m).0.26
Linear Expansion (/°C x 10-5):12
Elongation at Break (%):60
Strain at Yield (%):4
Max. Operating Temp. (°C):60
Water Absorption (%):1.3
Oxygen Index (%):17
Flammability UL94.HB
Volume Resistivity (log ohm.cm):11
Dielectric Strength (MV/m):10
Dissipation Factor 1 kHz:0.04
Dielectric Constant 1 kHz:5
HDT @ 0.45 MPa (°C):73
HDT @ 1.80 MPa (°C):62
Material. Drying hrs @ (°C):2 @ 70
Melting Temp. Range (°C):170 - 240
Mould Shrinkage (%):0.5
Mould Temp. Range (°C):40 - 50
Key Applications
Wood finishes; glass coatings; automotive; metallic-flake orientation; adhesives; coatings; inks; plastic coatings; flow and leveling aid
Product Description
Cellulose Acetate Butyrate (CAB) are mixed cellulose esters containing both acetate and butyrate functional groups.
They are commonly used as binders and additives in coatings applications for a variety of substrates, including plastics, textiles, metal, and wood.
Cellulose acetate butyrates offer a wide range of properties based on molecular weight as well as their butyryl, acetyl and hydroxy content.
Most grades are soluble in several low-cost solvents and are compatible with a range of resins and pigments.
Description
A thermoplastic polymer composed cellulose esterified with both acetic acid and butyric acid.
Cellulose acetate butyrate (CAB) became a commercial product in 1938.
Cellulose acetate butyrate is similar for cellulose diacetate except that it is tougher, more durable and has better dimensional stability.
Cellulose acetate butyrate is used for photographic film, varnishes and moldings.
Cellulose acetate butyrate is often found in sheets and has been sold under the name of motion picture safety film.
Cellulose acetate butyrate was used for x-ray films until 1947 when triacetates were added.
Synonyms and Related Terms
Cellulose acetate butyrate; cellulose acetobutyrate; cellulose butyrate; butyrate resin; acetobutirato de celulosa (Esp.); acetobutirato de celulose (Port.)
Examples: Tenite; Urex; Hercose C; Ester EAB-171;
Other Properties
Burns with difficulty to produce a dark yellow flame that smells of acetic acid (vinegar) and butyric acid (vomit).
Soluble in acetone, methylene chloride (depending on butyral content).
Density: 1.15-1.25
Refractive Index: 1.47
Cellulose Acetate Butyrate (CAB), commonly known as butyrate, is resistant to ultraviolet rays, has a lower moisture absorption than acetate and has an extremely high impact strength.
Cellulosics, as a group, are characterized by good strength, toughness, and high surface gloss.
In addition, they have good chemical resistance, good clarity, sparkle, and will take decoration readily.
Cellulose acetate butyrate is tougher than acetate and has lower moisture absorption.
Cellulose acetate butyrate resists weathering and has excellent transparency.
Although it is adversely affected by alcohol, alkalis, paint removers, and acetones, it is resistant to most household chemicals.
Additionally, Cellulose acetate butyrate is resistant to the harmful effects of ultra-violet radiation.
Cellulose acetate butyrate (CAB) is an amorphous, transparent thermoplastic material with uses from trim for automobiles to tool handles, pens, and blister packaging among others.
Cellulose acetate butyrate can be melted and remodeled into new shapes without altering its molecular structure.
Cellulose acetate butyrate is resistant to ultraviolet rays, has low moisture absorption and high impact strength. In addition, it has high transparency, aesthetic appeal, high dielectric constant, excellent machinability, compatibility with human skin, and the ability to be offered in an unlimited range of colors.
Cellulose acetate butyrate has soft and pliable nature and can be stretched up to 60% of its original length.
Cellulose acetate butyrate is expensive than its precursor cellulose acetate because of the additional steps necessary in producing the compound.
Since cellulose acetate butyrate is resistant to ultraviolet, it can be used for applications where high surface gloss is needed such as the production of lacquers for lenses and for various forms of plastic film.
Cellulose acetate butyrate is resistant to household chemicals and can be used in the manufacture of numerous types of toys and sporting goods.
Since, cellulose acetate butyrate has low electrical conductivity, high internal resistance, and external resistance, it serves as a good insulating material.
Cellulose acetate butyrate also finds a variety of applications in products such as textile fibers, wound dressings, photography, slipcovers, steering wheels, goggles, pneumatic system traps, and magnetic tape among others.
majority of cellulose acetate butyrate is consumed for making cigarette filters.
Cigarette tow and textiles are the key end-use application for cellulose acetate butyrate.
The major demand comes from cigarette filter tow manufacturing companies that are also engaged in the manufacture of textile fibers.
Rising consumption of cigarette in low to middle-income countries such as China and India, the introduction of longer cigarette filters, preference for low tar cigarettes is driving the demand for cellulose acetate butyrate.
The absence of stringent government regulations regarding cigarette consumption and demand for lesser emission of nicotine in the smoke is also accelerating the demand for cellulose acetate butyrate in emerging economies.
Definition of cellulose acetate butyrate
: any of several mixed esters that are formed by acylation of cellulose with a mixture of acetic and butyric acids and anhydrides and an acid catalyst, that are thermoplastic like cellulose acetates but have a wider range of solubility and are more moisture-resistant, and that are used in molded and extruded plastics and in lacquers
The melt spinning of cellulose acetate butyrate (CAB) without any additives is realized according to the thermal and rheological properties of cellulose acetate butyrate raw material.
Thermogravimetric analysis reveals that thermal degradation of cellulose acetate butyrate occurs at 275℃ in oxygen.
Rheological tests show that cellulose acetate butyrate is a strong shear thinning pseudoplastic fluid.
The melt viscosity of cellulose acetate butyrate is found to be relatively sensitive to temperature change and cellulose acetate butyrate melt is difficult to flow until the temperature reaches 230℃.
However, thermal degradation of cellulose acetate butyrate during spinning cannot be completely avoided even when the spinning temperature is 230℃.
The orientation of cellulose acetate butyrate fibers can be improved by increasing the spinning draw ratio during the spinning process or by hot drawing during the drawing process.
Crystallization of cellulose acetate butyrate fibers is facilitated by improving molecular orientation.
Owing to the improved orientation and crystallinity, the tensile strength and initial modulus of cellulose acetate butyrate fibers are enhanced.
The cellulose acetate butyrate fiber achieves the highest degree of orientation and crystallinity by drawing at 135℃, showing the highest tensile strength at 1.42 cN/dtex.
Moreover, dyeing experiments show that the cellulose acetate butyrate fiber can be dyed with a dispersed dye and the suitable dyeing temperature is in the range of 80∼90℃.
Cellulose acetate butyrate is great for many applications because it has a rubbery soft feel - making it perfect for pens, tools, handles, jewelry, and touch points on a product.
Cellulose acetate butyrate is transparent, quite averse to absorption of moisture, and has excellent impact strength.
Additionally, Cellulose acetate butyrate is resistant to both ultraviolet (UV) rays and outdoor weathering making it an ideal choice for items that are required to sit outside for extended periods of time such as door handles or parts of patio furniture.
Cellulose acetate butyrate is part of the cellulosic family that generally has good strength, toughness, and can be finished to a high surface gloss.
Cellulose acetate butyrate has good chemical resistance, excellent clarity, and a nice spark when polished and can be readily painted.
Cellulose acetate butyrate can be bonded with methyl methacrylate and other plastic adhesives.
While resistant to many household chemicals, caution must be taken as Cellulose acetate butyrate can be damaged by contact with alcohol, alkalis, paint removers, and acetones.
If we’ve piqued your interest and you want to know more about this amazing material, we recommend you read some of the papers on this page.
Below are few examples where Cellulose acetate butyrate is a great choice for your project.
Architectural coatings & surfaces
e.g. bathroom fittings
Automotive parts & accessories
e.g. steering wheels
Building materials
Coil coatings
Device housings
Furniture,
e.g. decorative consumer durables
General industrial coatings
Graphic arts
e.g. panels for illuminated signs
Motorcycles parts & accessories
Protective coatings
e.g. tool handles
Small appliances with non-food contact
The properties of Cellulose acetate butyrate include two common variations.
This page shows summary ranges across both of them. For more specific values, follow the links immediately below.
The graph bars on the material properties cards further below compare Cellulose acetate butyrate to: cellulosic plastics (top), all thermoplastics (middle), and the entire database (bottom).
A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.
Characterization of cellulose acetate butyrate (CAB) thin films with 17, 35 and 52 wt% butyryl is carried out to select the most suitable matrix material for the U and Pu containing large-sized dried spike reference material.
The virgin Cellulose acetate butyrate samples were aged by vibrations, heat, humidity, UV light and X-rays.
Characterization was done by thermo-analytical techniques, gel permeation chromatography, mechanical tests and via Rayleigh and Compton scattering.
The results show that Cellulose acetate butyrate with lower butyryl content can withstand higher operational temperatures and has greater mechanical strength while Cellulose acetate butyrate with higher butyryl content seems to be more resistant to radiation.
Description
Cellulose ester is from sustainable cellulose sources.
Its key features include:
Exceptional transparency
Brilliant depth of color
Self-polishing effect ensures permanently high surface quality
High impact strength
Special grades suitable for UV and weather resistance
No sensitivity to stress cracking
Cellulose Acetate Butyrate (CAB-553-0.4) is soluble in low molecular weight alcohols (methanol, ethanol, isopropanol, and n-propanol) as well as other common organic solvents.
Cellulose acetate butyrate has a high hydroxyl content (4.8 wt. %, average), which contributes to its alcohol solubility.
The hydroxyl group is reactive and may be crosslinked with urea formaldehydes, melamines, and polyisocyantes.
Films of Cellulose acetate butyrate-553-0.4 are colorless and have good ultraviolet stability, maintaining their low color over long periods of time.
Cellulose Acetate Butyrate (CAB-553-0.4) is supplied as a dry, free-flowing powder, offering formulation convenience, ease of handling and maximum formulating flexibility.
cellulose esters are based on up to sixty percent cellulose, one of the most abundant natural renewable resources.
What Is Cellulose Acetate Butyrate?
Cellulose is a naturally occurring component found in the cell walls of plants. There are many modified cellulose polymers including Calcium Carboxymethyl Cellulose, Carboxymethyl Cellulose Acetate Butyrate, Carboxymethyl Hydroxyethylcellulose, Cellulose Acetate, Cellulose Acetate Butyrate, Cellulose Gum, Cellulose Acetate Propionate, Cellulose Acetate Propionate Carboxylate, Cellulose Succinate, Cetyl Hydroxyethylcellulose, Ethylcellulose, Hydrolyzed Cellulose Gum, Hydroxybutyl Methylcellulose, Hydroxyethylcellulose, Hydroxyethyl Ethylcellulose, Hydroxypropylcellulose, Hydroxypropyl Methylcellulose, Methylcellulose, Hydroxypropyl Methylcellulose Acetate/Succinate, Methylcellulose, Methyl Ethylcellulose, Methyl Hydroxyethylcellulose, Microcrystalline Cellulose, Potassium Cellulose Succinate and Sodium Cellulose Sulfate that may be used in cosmetics and personal care products. These cellulose ingredients may be used in cosmetics and personal care products including bath products, hair products, eye and facial makeup, skin care products and shaving products.
Why is Cellulose Acetate Butyrate used in cosmetics and personal care products?
The following functions have been reported for these ingredients.
Abrasive - Microcrystalline Cellulose
Absorbent - Cellulose, Microcrystalline Cellulose
Adhesive - Hydroxyethyl Ethylcellulose, Hydroxypropyl Methylcellulose, Methyl Hydroxyethylcellulose
Anticaking agent - Microcrystalline Cellulose
Binder - Carboxymethyl Hydroxyethylcellulose, Cellulose Gum, Cellulose Acetate Propionate Carboxylate, Ethylcellulose, Hydroxybutyl Methylcellulose, Hydroxyethylcellulose, Hydroxyethyl Ethylcellulose, Hydroxypropylcellulose, Hydroxypropyl Methylcellulose, Methylcellulose, Methyl Ethylcellulose, Sodium Cellulose Sulfate
Bulking agent -Cellulose, Microcrystalline Cellulose
Emulsion stabilizer - Calcium Carboxymethyl Cellulose, Carboxymethyl Cellulose Acetate Butyrate, Carboxymethyl Hydroxyethylcellulose, Cellulose Gum, Cellulose Acetate Propionate Carboxylate, Cetyl Hydroxyethylcellulose, Hydrolyzed Cellulose Gum, Hydroxybutyl Methylcellulose, Hydroxyethylcellulose, Hydroxyethyl Ethylcellulose, Hydroxypropylcellulose, Hydroxypropyl Methylcellulose, Methylcellulose, Methyl Ethylcellulose, Methyl Hydroxyethylcellulose, Microcrystalline Cellulose, Sodium Cellulose Sulfate
Film former - Calcium Carboxymethyl Cellulose, Carboxymethyl Cellulose Acetate Butyrate, Carboxymethyl Hydroxyethylcellulose, Cellulose Acetate, Cellulose Acetate Butyrate, Cellulose Gum, Cellulose Acetate Propionate, Cellulose Acetate Propionate Carboxylate, Ethylcellulose, Hydrolyzed Cellulose Gum, Hydroxybutyl Methylcellulose, Hydroxyethylcellulose, Hydroxyethyl Ethylcellulose, Hydroxypropylcellulose, Hydroxypropyl Methylcellulose, Hydroxypropyl Methylcellulose Acetate/Succinate
Opacifying agent- Cellulose Succinate, Potassium Cellulose Succinate
Skin conditioning agent - humectant - Cellulose Succinate, Potassium Cellulose Succinate
Slip modifier - Cellulose, Microcrystalline Cellulose
Viscosity increasing agent - aqueous - Calcium Carboxymethyl Cellulose, Carboxymethyl Cellulose Acetate Butyrate, Carboxymethyl Hydroxyethylcellulose, Cellulose Gum, Cellulose Acetate Propionate Carboxylate, Cetyl Hydroxyethylcellulose, Ethylcellulose, Hydrolyzed Cellulose Gum, Hydroxybutyl Methylcellulose, Hydroxyethylcellulose, Hydroxyethyl Ethylcellulose, Hydroxypropylcellulose, Hydroxypropyl Methylcellulose, Methylcellulose, Methyl Ethylcellulose, Methyl Hydroxyethylcellulose, Microcrystalline Cellulose, Sodium Cellulose Sulfate
Cellulose acetate butyrate is a thermoplastic ester with high content of butyryl.
Cellulose acetate butyrate offers various characteristics such as low viscosity, intercoating adhesive ability, high transparency and surface gloss.
Also, these act as barrier to moisture and ultraviolet light.
These can also be used with various resin systems such as acrylics, polyesters, phenolics, and isocyanates.
Furthermore, these are not used with melamine, urea-formaldehyde and many alkyds due to less content of butyryl then above mentioned products general.
With the addition of cellulose acetate butyrate into coating formulations, they improve properties of coatings such as hardness, leveling, resistance to solvent, clarity and gloss.
These also reduces the drying time of the coatings. Due to these properties, these are mainly used in coating of metals and wood co, gravure and flexographic printing inks, graphic arts, ink jet printing inks, nail lacquer topcoats, automotive clear and base coats.
With the increase in demand for infrastructure and housing facilities across the globe, there has been increase in demand for paints & coatings across the globe.
This increase in demand is due to the changes in lifestyle and rise in standard of living of the people.
Additionally, there has been a rise in demand for automotive, mostly two wheelers across developing nation such as China.
All these factors are boosting the demand for cellulose acetate butyrate market across the globe.
IUPAC NAMES:
2-[3-[(4-amino-2-methylpyrimidin-5-yl)methyl]-4-methyl-1, 3-thiazol-3-ium-5-yl]ethanol; nitric acid
2-[3-[(4-amino-2-methylpyrimidin-5-yl)methyl]-4-methyl-1,3-thiazol-3-ium-5-yl]ethanol; nitric acid
Cellullose ester
Cellulose acetat butyrat
CELLULOSE ACETATE BUTYRATE
Cellulose Acetate Butyrate
Cellulose acetate butyrate
cellulose acetate butyrate
Cellulose, Acetate Butanoate
Cellulose, acetate butanoate
Cellulose-acetate-butyrate
SYNONYMS:
Cellulose,acetatebutanoate
CELLULOSE ACETATE BUTYRATE
CELLULOSE ACETATE BUTYRATE POLYMER
CELLULOSE ACETOBUTYRATE
CELLULOSE ACETATE BUTYRATE, 38 WT. % BUT YRYL CONTENT, AVERAGE MN CA. 30,000
CELLULOSE ACETATE BUTYRATE, 52 WT. % BUT YRYL CONTENT, AVERAGE MN CA. 30,000
CELLULOSE ACETATE BUTYRATE, 31 WT. % BUT YRYL CONTENT, AVERAGE MN CA. 12,000
CELLULOSE ACETATE BUTYRATE, 17 WT. % BUT YRYL CONTENT, AVERAGE MN CA. 65,
CELLULOSE ACETATE BUTYRATE, 37 WT. % BUT YRYL CONTENT, AVERAGE MN CA. 70,000
CELLULOSE ACETATE BUTYRATE, PHARMA
Cellulose acetate butyrate, butyryl content 16.5-19.0%
cellaburate
Cellaburate (350 mg) (Cellulose Acetate Buty-rate)
Cellulose acetate butyrate, butyryl content 35-39% 500GR
Cellulose acetate butyrate, butyryl content 35-39%
Cellulose acetate butyrate, butyryl content 36-40%
Cellulose acetate butyrate, butyryl content 44-48%
Cellulose acetate butyrate, butyryl content 50-54%
Cellulose Acetate Butanoate, mittlere Molmasse 16000 - 65000 g/mol
Cellulose acetate butanoate: (Celvacene)
Cellulose acetate butyrate average Mn ~12,000
Cellulose acetate butyrate average Mn ~30,000
Cellulose acetate butyrate average Mn ~65,000
Cellulose acetate butyrate average Mn ~70,000
Acetobutyrate cellulose
Acetylbutyrylcellulose
AK 211
AK 211 (cellulose derivative)
CA 381-0.5
CAB 0.05
CAB 04
CAB 151-0.3
CAB 151-0.3C
CAB 151-0.7
CAB 171
CAB 171-15
cellulose microciystalline
Cellulose acetate butyrate, Mn ≈ 70,000
Cellulose acetate butyrate CRS
CELLULOSE ACETATE BUTYRATE USP/EP/BP
