WALSRODER™ Nitrocellulose Polymers for Industrial Applications WHAT ARE WALSRODER™ NITROCELLULOSE POLYMERS?

WALSRODER™ Nitrocellulose Polymers are cellulose esters, derived from natural wood or cotton linters. To obtain WALSRODER™ Nitrocellulose, a mixture of nitric acid, sulfuric acid and water is applied to a cellulose feedstock. WALSRODER™ Nitrocellulose polymers have been produced in Bomlitz, Germany, since 1879. While Bomlitz is one of the oldest DuPont facilities, significant investments made recently have positioned our Bomlitz facility as a world leader in nitrocellulose production and technology.

DUPONT IS THE WORLD LEADER IN CELLULOSIC DERIVATIVES DuPont Nutrition & Health offers a wide range of cellulose derivatives including WALSRODER™ Nitrocellulose. Our expertise in cellulosic polymers and their applications make us an excellent partner of choice for many customers in a wide range of industries.

A RANGE OF FUNCTIONAL PROPERTIES

Forms transparent films with excellent mechanical properties Film Forming that remain hard but flexible.

Highly compatible with most organic Exhibits superior binding capabilities Solvent and solvents, pigments and resins; which are essential when formulating Binding Component provides rapid solvent evaporation printing inks and coatings. Compatibility with low solvent retention.

Naturally derived cellulose ester; Viscosity and Builds viscosity once in solvent odorless and non-toxic, making it Odorless solution; enables users to Rheology a good choice for many industrial Non Toxic customize the required viscosity inks and coatings. Modification and rheology in application. WALSRODER™ NITROCELLULOSE APPLICATIONS

WALSRODER™ Nitrocellulose products are used in a wide variety of applications. The examples below display only a few of the many possibilities.

Widely used in flexography and gravure printing for flexible packaging; provides excellent binding capability and compatibility with solvents, resins and pigments.

Used in wood coatings, particularly furniture; forms Printing Inks Key component of nail polish transparent, fast-drying films with because of its mechanical resistance excellent mechanical and optical and fast-drying properties. properties; soluble in many organic solvent systems.

Wood Nail Polish Coatings

Used in leather coating and Leather finishing; particular water Coatings damped E-grades allow for Nitrocellulose emulsions.

Other Blotting Applications Membranes

Can be used as a binder in coatings for automotive, metal, paper, glass and Popular membrane material for transferring other applications. electrophoretically separated biomolecules to a solid support; high binding capacity to proteins; excellent mechanical stability; very low detection background. KEY PRODUCT GRADES

WALSRODER™ Nitrocellulose is soluble in many organic solvent systems. The table below shows the solubility and application properties based on the selected grade.

A-grades AM-grades E-grades (Alcohol Soluble) (Alcohol Medium Soluble) (Ester Soluble)

Nitrogen content 10.7% – 11.3% 11.3% – 11.8% 11.8% – 12.3%

• Ethanol • Ethanol (partially) • Esters Solubility • Esters • Esters • Ketones • Ketones • Ketones • Glycol ethers

• Wood coatings • Mono-solvent printing • Printing inks (solubility in alcohol) • Leather coatings inks (NC-Chips) Applications / Properties • Heat-sealing foils and/or films • Form very strong films • Special applications like coatings of (thermoplastic behavior) • Very good mechanical properties cellulose films or staple coatings • More resistant to alcohol

PHLEGMATIZATION ENSURES SAFETY In order to mitigate flammability risks, WALSRODER™ Nitrocellulose is phlegmatized with at least 30% alcohol (ethanol or isopropanol), 35% water or 20% plasticizer (ATBC, ESO or SAIB).

WALSRODER™ NITROCELLULOSE PRODUCT OFFERING DuPont has made significant investments to support our customers and provide Free-Flowing WALSRODER™ Nitrocellulose products. These products provide additional safety and increase productivity for our customers.

We continually adapt WALSRODER™ Nitrocellulose to our customers’ evolving processes and applications. As a result, DuPont offers three different particle morphologies of WALSRODER™ Nitrocellulose:

• WALSRODER™ NC Standard Grades • WALSRODER™ NC Free-Flowing Grades • WALSRODER™ NC-Chips

WALSRODER™ Nitrocellulose NC-Chips Standard (SD) Free Flowing (FF) Chips (CH) A-Grades 400–700 300–700 400 Viscosity AM-Grades 500 330–750 E-Grades 330–1160 330–1160 330–950

Isopropanol 30% 30% Damping Agent Ethanol 35% 30% / 35% Water 35%

ATBC 20% Plasticizer ESO 20% SAIB 20% BENEFITS OF FREE-FLOWING WALSRODER™ NITROCELLULOSE – FF GRADES

Dissolving time a Excellent flow and function of equipment emptying properties and solvent system Faster emptying time, higher Large range of product output and efficiency and packaging options May enable a reduction in manual labor

WALSRODER™ Nitrocellulose Higher bulk density FF Grades Safer handling enables a greater flow and Lower risk of injuries allows for a reduction in storage capacity

KEY PRODUCTS IN THE WALSRODER™ NITROCELLULOSE PRODUCT FAMILY

The table below provides an overview of WALSRODER™ Nitrocellulose products and their respective viscosities, phlegmatization, packaging and particle morphology options.

WALSRODER™ Nitrocellulose Damping Agent Ethanol (30%) Ethanol (35%) Isopropanol (30%) Water (35%) Form Free Flowing (FF) Free Flowing (FF) Standard (SD) Free Flowing (FF) Standard (SD) Standard (SD)

Packaging 110 L 200 L BOX 110 L 200 L 110 L 200 L BOX 110 L 200 L 110 L 200 L 110 L 300 • • • • • 375 • 400 A • • • • • • • • • • • • • 500 • • • • • • • • • 600 • 700 • • • • • AM 500 • 330 • • • • • • • • • • 360 • • 375 • • • • • 380 • 400

Grade and Viscosity • • • • • • • • E 510 • • • • • • 560 • • • • • • • • • 620 • • • • • • • • • 840 • • • • • 950 • • • • • • • 1160 • • • • • FURTHER COMBINATIONS MAY BE AVAILABLE ON DEMAND KEY PRODUCTS IN THE WALSRODER™ NC-CHIPS PRODUCT FAMILY

WALSRODER™ NC-Chips, a specific form of WALSRODER™ NC-Chips nitrocellulose, contain a plasticizer as their phlegmatizer. Plasticizer ATBC ESO SAIB Since they are alcohol free, NC-Chips are used when Packaging 110 L 110 L 110 L other Nitrocellulose grades cannot meet certain technical A 400 • requirements. For example, when only one solvent can be used, 330 • • NC-Chips are ideally suited for the production of coatings. AM 500 • 750 • 330 • • • 375 • 400 • • 510 E • • 560

Grade and Viscosity • 620 • 840 • 950 •

WALSRODER™ NITROCELLULOSE SELECTION GUIDE FOR KEY APPLICATIONS

WOOD COATINGS PRINTING INKS

Grades A AM E Grades A AM E A300 A400 A500 A700 AM330 AM500 E330/360 E375/380 E400 E510 E560 E620 E840 E950 E1160 A300 A400 A500 A700 AM330 AM500 E330/360 E375/380 E400 E510 E560 E620 E840 E950 E1160 Primer • • • Flexo • • • • • • • • • Sanding-sealer • • • • • • • Rotogravure • • • • • • • • • Matt lacquers • • • Recommended NC grades for printing inks Buffing finishes • • • • • • Dip coatings • • • • • • • • Coatings for piercing • • • • • Floor coatings • • • • OTHER APPLICATIONS Fillers • • Recommended NC grades for wood coatings Grades A AM E A300 A400 A500 A700 AM330 AM500 E330/360 E375/380 E400 E510 E560 E620 E840 E950 E1160 Leather coatings • • • • • Nail polish • • Blotting membranes • • Recommended NC grades for other applications DUPONT GLOBAL SPECIALTY SOLUTIONS

• Global manufacturing and GLOBAL SPECIALTY SOLUTIONS MANUFACTURING & RESEARCH SITES technology footprint 5 production sites, 3 R&D/Technical Support and Development (TS&D) centers GERMANY • Robust business continuity planning STADE, BOMLITZ MICHIGAN procedures and standards BOMLITZ MIDLAND • Sales and technical support network for local customer support CHINA SHANGHAI • Three technical support and development (TS&D) facilities »» Bomlitz, Germany WEST VIRGINIA »» Midland, MI, U.S.A. INSTITUTE

»» Shanghai, China LOUISIANA PLAQUEMINE

WHAT WE DO

WALSRODER™ Nitrocellulose for industrial applications, are available only from DuPont Global Specialty Solutions and its distributors. Global Specialty Solutions, a business unit of DuPont Nutrition & Health (N&H), manufactures cellulosic polymers alongside other N&H portfolio products. The dedicated Global Specialty Solutions team commercializes DuPont products into various global markets.

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More than just goals, our core values reflect the way we work We are innovative problem solvers, drawing on deep application every day with our customers and partners in communities understanding and market insight to help our customers turn around the globe: challenges into high-value business opportunities. • Safety & Health Learn more at dupontspecialtysolutions.com • Environmental Stewardship • Respect for People • Highest Ethical Behavior

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