Other Specialty Applications

 
 
 
 
 
 

DuPont Global Specialty Solutions (GSS) is a business of DuPont Nutrition & Biosciences, fully dedicated to serving industrial markets. GSS offers METHOCEL™, WALOCEL™ CRT, and ETHOCEL™ cellulose ethers, Lattice® microcrystalline cellulose, POLYOX™ water-soluble resins and Scogin® alginates, providing our customers with unique solutions for a wide range of applications.

GSS supports its customers around the world to develop, optimize, and manufacture products for a wide range of specialty markets, including:

  • Polyvinyl Chloride (PVC) – Suspension Polymerization
  • Pulp and Paper
  • Ice and Gel Packs
  • Lighting
  • Other Industrial Applications
 
 
 

PVC Suspension Polymerization

METHOCEL™ is an essential processing aid for the manufacture of high-quality PVC. An important characteristic of polyvinylchloride (PVC) is its ability to absorb additives, such as plasticizers, stabilizers, and pigments, quickly and in sufficient quantities. To achieve this goal, a defined level of porosity is required which is often obtained at the expense of bulk density.  The balance between porosity and bulk density is a constant issue and our METHOCEL™ products create the ideal balance enabling both process and finished product quality.

 
 
 

METHOCEL™ Product Features

Functional Benefits

Surface activity

Reduced interfacial tension

Facilitates dispersion

Suspension agent

Particle size control

Uniform particle size distribution

Reduced droplet size

Film forming

Encapsulates droplets in a protective film

Prevents monomer droplet coalescence

Broad range of substitution levels

Provides consistent performance

Tailor porosity (Final rigid /flexible PVC)

Synergies with other protective colloids

Control grain porosity and particle size

 
 
 

METHOCEL™ Product Selection Table

Recommended Product

Viscosity (cP)
(2% in water)

Porosity

Performance in Use

METHOCEL™ E50

50

High

Low density, high porosity, allows for faster blending with plasticizer (flexible PVC), low VCM residuals

METHOCEL™ F50

50

Medium

General purpose suspending agent, moderate density

METHOCEL™ K100LV

100

Low

Rigid PVC, high density, low porosity, glassy

 
 
 

Pulp and Paper

 
 
 

In paper manufacturing, it is critical that additives, fillers, and fibers are retained on the paper machine web during the de-watering process. Their use in filler retention applications has also become increasingly important due to the demand for high-opacity, lighter-weight paper and the growing cost of pulps. Our METHOCEL™ products are used in paper coating applications to deliver a range of functional benefits.

 
 
 

GSS Product Features

Functional Benefits

Non-charged polymers

UCARFLOC™ is used as a retention aid for pulps containing anionic electrolytes 

Film forming

METHOCEL™ offers oil barrier properties in paper coating applications

POLYOX™ enhances the coating load and improves paper quality

 
 
 

GSS Product Selection Table

Recommended Product

Functional Benefits

METHOCEL™ E

Processing aid: reduces organic contaminants from recycled paper (pitch and stickies control)

UCARFLOC™

Flocculation and paper fines retention due to high affinity for pulps and fillers (silica, clays and linins)

SCOGIN®

Paper sizing: film-former, smooth surface, improves grease and solvent resistance, reduces air porosity

Paper coating: improves coating uniformity and printing, reduces coating defects

ETHOCEL™

AQUACOAT®

Moisture barrier to protect paper surface

 
 
 

Ice & Gel Packs

 
 
 

Highly viscous solutions in water are produced by addition of WALOCEL™ CRT carboxymethylcellulose or METHOCEL™ cellulose ethers at 0.5 to 5%.  When formulated with freezing point depressants such as salts, glycols, or alcohol, these mixtures can be placed into suitable packs which are more or less flexible in the frozen state. Such re-useable packs can be used as ice packs for food deliveries or as cold compresses for first aid. Gel packs can also be warmed up in a water bath or microwaved. 

 
 
 

Typical Starting Formulations

Ice Pack

Component

Amount (wt%)

METHOCEL™ K15M Food Grade

4-5%

Propylene glycol

20-40%

Water

55-75%

Preservatives and additives

quantum satis

 
 
 

Gel Pack (Hot or Cold)

Component

Amount (wt%)

WALOCEL™ CRT*

0.5 - 3

Propylene glycol

10-20

Water

80-90

Aluminum sulfate

quantum satis

 
 
 

Lighting

 
 
 

Recent advances in lighting technology, such as CFL bulbs and fluorescent lamps, require the manufacturing of phosphor slurry and premium sacrificial binders. 

 
 
 

POLYOX™ Product Features

Functional Benefits

High binding efficiency

Clean burn-out

Rheological control 

Excellent solubility

Tunable viscosity across a broad range

Stable viscosity across a wide pH range 

Solvent compatibility

Highly compatible with a variety of dispersants and antifoams

Click here for more information on POLYOX™

 
 
 

Product Selection Table for Other Industrial Applications

This table below highlights a few other applications but is not exhaustive of GSS offering. For more information or questions, please feel free to connect with your sales representative.

Application

Recommended Product

Properties

Functional Benefits

Cement & Concrete pumping

POLYOX™

Lattice® NTC

Pumping aid

  • Improves workability and functionality of wet concrete and mortars, for pumped concretes
  • Pumps longer distances at lower pressure
  • Stabilizes sprayed concrete and foam

Improves water retention and distribution

  • Especially with highly porous and harsh lightweight aggregates
  • Flow aid, less water required

Drilling Fluids

ANTISOL™

WALOCEL C™

Processing aid

  • Prevents water loss
  • Protects clay against electrolytes
  • Effectively disperses clays , prevents dispersion and swelling of shale formations

Encapsulation

ETHOCEL™

METHOCEL™ 

SCOGIN®

AQUACOAT®

AQUATERIC®

Film formation

  • Customization of actives release profile
  • Protects encapsulates 

Gel Fuels

METHOCEL™

Thickener

  • Controls burn-rate
  • Burns-off clean,  smokeless without odor or harmful combustion by-products

Heat up quickly

  • Heats up to full intensity very quickly vs firewood or bio ethanol fuels 

Solubility

  • Soluble in both organic solvents and water

Household and Industrial Cleaners

POLYOX™

METHOCEL™ 

SCOGIN®

Thickening and binding in liquid formulations

  • Enhances stability and visual appearance over time

Lattice® NTC

Lattice® NT

Suspension & stabilization

  • Suspends and improves stability at low viscosity

Accelerate®

Super-disintegrant for tablets

  • Faster disintegration and dissolution

Binder & compaction

  • Compressability, forms strong compacts 

Lubricants

WALOCEL™ CRT

Lubricity

  • Allows tire lubricants to stay in place
  • Added slip properties aid in transfer of coatings or adhesives from a roller or brush to a substrate

POLYOX™

METHOCEL™

ETHOCEL™

Thickener

  • Clean burn or lift off in metal working lubricants

Textile

METHOCEL™

Reduce friction

  • Faster production speed, increased productivity and yields

WALOCEL™ CRT

Processing aid

  • Helps keep ink from leaching into the fabric

SCOGIN®

Thickening

  • Rheology control for print pastes
  • Inert to dyes and fibers

Welding rods

PROTAWELD®

WALOCEL™ CRT

Processing aid

  • Enables the extrusion: provides the required body and green bond strength to the coating prior to rod extrusion
  • Prevents air bubble formation
  • Plasticizer and dispersing agent

Considering the many applications of our products, we recommend that you reach out to your sales and technical representatives for additional product/application recommendations.

 
 
 

Connect With Us

Our enthusiastic sales team, wide network of distributors, and technical experts stand ready to support you in your development projects. Contact us now.

 
 
 

DISCLAIMER

FORMULATORS AND MANUFACTURERS SHOULD CONSULT, UNDERSTAND AND COMPLY WITH ALL APPLICABLE RULES AND REGULATIONS, THAT APPLY FOR THEIR INTENDED PRODUCT AND COUNTRY BEFORE MAKING A SELECTION.

DUPONT DISCLAIMS, WITHOUT LIMITATION, ANY WARRANTY OR GUARANTEE OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR USE, NON-INFRINGEMENT OF THE INTELLECTUAL PROPERTY RIGHTS OF THIRD PARTIES, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICES. YOU ACCEPT SOLE RESPONSIBILITY FOR DETERMINING ALL MATTERS RELATED TO YOUR INTENDED USE OF THE PRODUCT AND YOUR MARKETING AND SALE OF ANY PRODUCT INCORPORATING DUPONT PRODUCT AND YOU HEREBY WARRANT THAT YOU HAVE USED YOUR OWN INDEPENDENT SKILL, EXPERTISE AND JUDGMENT IN SELECTING THE PRODUCT FOR YOUR REQUIREMENTS AND INTENDED USE.  YOU FURTHER WARRANT THAT YOU ARE FAMILIAR WITH THE PROCEDURES FOR THE PROPER AND SAFE USE, INCLUDING ANY APPLICABLE LAWS, REGULATIONS AND NECESSARY REGISTRATIONS RELATED TO YOUR INTENDED USE. YOU WILL NOT HOLD DUPONT RESPONSIBLE AND WILL INDEMNIFY DUPONT FOR ANY DAMAGES ARISING FROM THE IMPROPER USE OF OUR MATERIAL.

 
 
 
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