Ethoxylates

UNITHOX™ ethoxylates are nonionic emulsifiers and wetting agents with high molecular weights and melt points. These NUCERA ethoxylated products are produced from UNILIN™ alcohols, which are fully saturated, long chain, linear, C20 to C50, synthetic alcohols. The relative effects of the hydrophilic and lipophilic portions of UNITHOX ethoxylates vary according to the types and relative amounts used of starting alcohol and ethylene oxide. Thus, UNITHOX ethoxylates can be tailored to provide unique surface-active properties that are useful in a wide range of applications. They can also be readily blended with other surfactants to deliver a truly customized solution.

Product
Molecular Weight
Ethylene Oxide
(% by Weight)
HLB
Value
Hydroxyl Number
(mg KOH/g sample)
Melting Point (°C)
Test Method
Calculation
NMR Calculation
Calculation
ASTM E-222
ASTM D-127
UNITHOX™ 420 ethoxylate
575
20
4
85
91
UNITHOX™ 450 ethoxylate
920
50
10
55
91
UNITHOX™ 480 ethoxylate
2300
80
16
22
86
UNITHOX™ 490 ethoxylate
4600
90
18
12
71
UNITHOX™ 550 ethoxylate
1100
50
10
41
99
UNITHOX™ 720 ethoxylate
875
20
4
52
106
UNITHOX™ 750 ethoxylate
1400
50
10
33
106

Product Benefits

The hydrophobic and hydrophilic components of UNITHOX ethoxylates provide functionality to secure many advantages for end users of these products: Typical properties features long hydrophobic chain UNITHOX ethoxylates can be dispersed in both water and a wide range of organic media. They are also excellent dispersion aids. They can disperse a wide range of media in both aqueous and organic systems:

PIGMENTS: Phthalo blue, lithol rubine, zinc oxide, carbon black, iron oxide, titanium dioxide

WAXES: Paraffin, microcrystalline, synthetic (POLYWAX™ polyethylenes)

OILS: Silicone, soybean

RESINS: Epoxy, polyester, rosin ester, terpene phenolic acid, alkyd

UNITHOX ethoxylates provide excellent emulsification properties. The presence of the long hydrophobic chain affords them the ability to emulsify high molecular weight synthetic or natural oil phases in aqueous systems.

Specialty Polymers and Waxes to Meet Your Needs

Falex tests on several UNITHOX ethoxylates indicate they provide excellent anti-wear (ASTM D-2670) and extreme pressure lubricating (ASTM D-3233) properties in water-based lubricant formulations. This, along with their ability to disperse a wide range of components into aqueous systems, makes them excellent building blocks for metalworking and other lubricant formulations.

Applications

There is a wide range of possible applications for UNITHOX ethoxylates. Many of these are based on the product’s ability to act as a dispersant or an emulsifier.

Dispersion aids in water-based coating and ink applications

Lubricants and emulsifiers in metal-working fluids

“Solid surfactants” for modification of various polymer systems

Emulsification of silicon oils

Emulsifiers and lubricants for textile processing and finishing fluids

Dispersions of UNITHOX ethoxylates It is often more convenient to apply UNITHOX ethoxylates to industrial systems as water-based dispersions.

  • Dispersion aids in water-based coating and ink applications
  • Lubricants and emulsifiers in metal-working fluids
  • “Solid surfactants” for modification of various polymer systems
  • Emulsification of silicon oils
  • Emulsifiers and lubricants for textile processing and finishing fluids