ETHOCEL™ Solvent-Soluble Polymers


ETHOCEL™ ethylcellulose polymers are versatile, organosoluble polymers. They are used widely for: Coatings, Tough and flexible film forming, Binding, Water barriers, Rheology modification, Suspension stabilization.

Due to its high purity, ETHOCEL™ ethylcellulose polymers burn off evenly and completely, forming highly transparent solutions and films.

ChemPoint is an approved supplier of ETHOCEL™ ethylcellulose polymers in industrial applications, providing dedicated marketing, sales, order fulfillment, and technical support for customers in EMEA and North-America.

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Out of specification viscosity that leads to rejection and failure of solvent based formulations

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      Product Questions

      Are all European Safety Data Sheets (SDSs) issued by DuPont in compliance with REACH requirements?
      SDSs issued by DuPont in Europe are in compliance with all applicable European legislation requirements, including REACH requirements as interpreted by the European Commission. 

      Due to practical challenges of implementing the SDS changes required by REACH before the start of the Registration process, the European Commission supported the CEFIC position with respect to the following key points:

      The only requirements that could reasonably be implemented by June 1, 2007 were mainly format changes.

      (These include reversing the content of Sections 2 and 3, inserting the e-mail address of the individual responsible for creating the SDS in Section 1, and for substances not classified as dangerous, adding the reason for indicating the substance in Section 3).

      SDSs that do not need to be revised for reasons other than the above format changes can stay in the pre-REACH format and are considered to be still in compliance because their content is correct. For newly created SDSs, and for revised SDSs, the format changes must be implemented.

      All changes required by REACH as described in articles 31 and Annex II of the Regulation should be implemented before Dec 1, 2010, which coincides with the first deadline for registration. Until that date, the SDSs circulating in Europe will be in 2 different formats.

      DuPont has implemented the above recommendations of the European Commission. On this basis, our SDSs comply with the REACH requirements as currently defined and interpreted by the European Commission.
      Are DuPont plants certified to ISO 14001?

      All of DuPoint's businesses are committed to improving the environment, health, and safety of our workers, our operations, our products, our customers' use of our products, and the communities and countries where we manufacture and market.  DuPoint's EH&S Policy states:

      At DuPoint, protecting people and the environment will be part of everything we do and every decision we make.  Each employee has a responsibility in ensuring that our products and operations meet applicable government or Dow standards, whichever is more stringent.

      Our goal is to eliminate all injuries, prevent adverse environmental and health impacts, reduce wastes and emissions and promote resource conservation at every stage of the life cycle of our products.  We will report our progress and be responsive to the public.
      DuPoint complies with the American Chemistry Council's Responsible Care® guiding principles, codes, and management system requirements. DuPoint has recommitted its support for Responsible Care on a global scale by signing the Responsible Care Global Charter under the auspices of the International Council of Chemical Associations (ICCA).  DuPont has also endorsed the ICCA's Global Product Strategy, an effort by the global chemical industry to further improve its product stewardship efforts.  Our EH&S management system is audited regularly to ensure compliance with all applicable governmental requirements, Responsible Care, ISO 14001, and internal DuPont requirements.  See file attachments below for our most recent Responsible Care corporate certificate.

      DuPont has adopted what we call our "2025 Sustainability Goals" -- ambitious performance improvement goals with a broad external focus: strengthening our relationships with the communities where we operate, continuing to improve our product stewardship and innovation, and reducing our global footprint.  In support of these goals, DuPont is constantly working to improve our performance through focused EH&S programs such as the Waste Reduction Always Pays (WRAP) program.  More information can be found by visiting

      Specific to ISO-14001, DuPont currently has 19 sites globally that are ISO 14001 certified.  Our other 200+ sites are not currently pursuing ISO 14001 certification from an outside body.  However, DuPont's Operating Discipline Management System (ODMS) is applicable globally and complies with the requirements established in ISO-14001 and Responsible Care®.  All Dow sites globally have implemented, or are in the process of implementing their Environmental Management system consistently with this global Management System.

      ® Responsible Care is a Registered Service Mark of the American Chemistry Council

      Additional Information: 

      DOWEX Resins ISO 14001 Certificates

      METHOCEL ISO 14001 Certificates

      Can you provide information on the safe handling and processing of cellulose ethers?
      Please describe the packaging used for ETHOCEL™ ethylcellulose products.
      ETHOCEL is packaged in fiber drums or bags. The fiber drum contains either 20 kg or 25 kg depending on the grade. The fiber drum is a Fiberpak with a polyethylene bag insert. The bag contains either 40 lb or 50 lb depending on the grade. The bag has an outer layer composed of four ply Kraft paper and an inner blue Interplas liner.

      In addition to the above package an additional fiber drum packaging for the standard premium grades was recently introduced. The fiber drum contains 25 kg for the ETHOCEL Std 4, 7, 10, 14, 20 Premium grades and 20 kg for the ETHOCEL Std 45, 100 Premium grades. The fiber drum comes with a single polyethylene liner inside the drum.

      There is no change to the current packaging of the ETHOCEL Std FP Premium grades.
      What are the general properties of ETHOCEL™ polymers?
      ETHOCEL is a trademark of The DuPont Chemical Company for its family of thermoplastic cellulose ethers.  These polymers have provided excellent service to industry since their commercial introduction by Dow in the mid-1930s.

      These multifunctional, water-insoluble, organosoluble polymers are used in many pharmaceutical and specialty applications.  They function as binders; tough, flexible film formers; masking and time-release agents; water barriers; and rheology modifiers, to name a few.

      General Properties - ETHOCEL ethylcellulose polymers are colorless, odorless, tasteless, and noncaloric.  They have outstanding chemical and  physical properties.  These properties make them useful in many applications - from pharmaceutical, food, and personal care applications to specialty applications, including some of the most sophisticated electronic devices.1

      Flammability - Once ignited, ETHOCEL will support combustion. However, ETHOCEL offers no greater fire hazard on storage and handling than does paper or cellulose in the same physical form.

      Thermal Stability - ETHOCEL is stable up to its melting point (~160°C, 320°F). The viscosity of ETHOCEL™ polymers is stable to high temperatures. It has good outdoor durability and toughness at both high and low temperatures.

      Low Ash Content - ETHOCEL has a very low ash content, making it useful in applications such as conductive inks and pastes, dielectrics, ceramics, and fluorescent lighting.

      Stability to Light - ETHOCEL does not discolor on exposure to strong sunlight nor does it promote the discoloration of plasticizers or polymers.

      Chemical Stability/Resistance - ETHOCEL is a stable, slightly hygroscopic material. It is inert to attack by aqueous alkalies, even when hot and highly concentrated. It is resistant to salt solutions and resists oxidation below its softening temperature.

      Thermoplasticity - ETHOCEL possesses excellent thermoplasticity.  Unplasticized ETHOCEL softens and becomes plastic at 135°C to 160°C Softening point and metling point temperatures.  It can be compounded with plasticizer, waxes, and polymers while in a plastic condition.  Plasticized ETHOCEL™ softens at much lower temperatures than unplasticized ETHOCEL and forms the basis of compositions for molding, extruding, and laminating uses.

      Flexibility - Films made from ETHOCEL polymers are highly flexible and retain their flexibility at temperatures well below freezing.

      Film Formation - ETHOCEL is an excellent film former. Films made from ETHOCEL are tough, with high tensile strength and an unusual degree of flexibility even at low temperatures. ETHOCEL polymers yield a greater volume of film-forming solids than any other cellulose derivative.

      Compatibility - ETHOCEL™ is compatible with most common plasticizers and polymers. It yields clear films with a wider variety of plasticizers and polymers than any other cellulose derivative.

      Water Resistance - ETHOCEL is an excellent water barrier. Films of ETHOCEL absorb little moisture either on exposure to the atmosphere or after long immersion in water.

      Binding - The good binding qualities of ETHOCEL are useful in applications such as tableting and microencapsulation.

      Controlled Release - ETHOCEL allows control of the release of active ingredients from solid dosage forms.

      Solubility - ETHOCEL dissolves in a wide range of solvents such as aliphatic alcohols, chlorinated solvents, and natural oils. It is practically insoluble in glycerin, propylene glycol, and water.

      1All applications may not be suitable for all regions

      To learn more about this product line please view our website on ETHOCEL.
      What are the physical properties of ETHOCEL™ Standard cellulose ethers?
      ETHOCEL ethylcellulose polymers are colorless, odorless, tasteless, and noncaloric. They have outstanding chemical and physical properties.  These properties make them useful in many applications - from pharmaceutical, food, and personal care applications to specialty applications, including some of the most sophisticated electronic devices.

      Physical Propertiesa of ETHOCEL Standard cellulose ethers

      Appearance white powder
      Odor none
      Taste none
      Density (bulk), g/cm3, ETHOCEL Std. 4, 6, 7, 10, 20, 45, 100 0.4
      Density (bulk), g/cm3, ETHOCEL Std. 200 & 300 0.3
      Specific gravity, g/cm3 1.12-1.15
      Glass transition temperature, °C (°F) 129-133 (264-271)
      Softening point, °C (°F),  See Answer ID 1264 133-138 (271-280)
      Melting point, °C (°F),  See Answer ID 1264 165-173 (329-343)
      Film properties  
            Refractive index 1.47
            Tensile strength See Answer ID 1275
      Electrical properties  
            Dielectric constant at 25°C, 1 MHz 2.8-3.9
            Dielectric constant at 25°C, 1 kHz 3.0-4.1
            Dielectric constant at 25°C, 60 Hz 2.5-4.0
            Power factor at 25°C, 1 kHz 0.002-0.02
            Power factor at 25°C, 60 Hz 0.005-0.02
            Volume resistivity, ohm-cm 1012-1014
            Dielectric strength, V/0.0254 mm 1500
       aMajewicz, T.G., et al., eds., “Cellulose Ethers,” Encylopedia of Polymer Science and Technology, John Wiley & sons, Inc., New York, 2002.
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