Polyoxyethylene - Polyoxypropylene Block Copolymer,  (Pluronic type nonionic surfactant)"NEWPOL PE"

What's great about Sanyo Chemical's polyoxyethylene-polyoxypropylene block copolymer "NEWPOL PE"


Pluronic type nonionic surfactant 

The main component of "NEWPOL PE" is a block copolymer of ethylene oxide (EO) and propylene oxide (PO), a pluronic type nonionic surfactant with a polyoxypropylene chain as a hydrophobic group in the center of the molecular chain and polyoxyethylene chains as hydrophilic groups on both ends. 


Lineup of products with distinctive features and a wide variety of functions can be added

Depending on the molecular weight of the polyoxypropylene and polyoxyethylene chains, the products are characterized by their appearance (liquid, solid, etc.), foaming and defoaming properties, cleaning power, emulsifying and dispersing power, and dissolving speed in water. 


A raw material for many chemical products

"NEWPOL PE" products has primary OH groups at both ends of the molecule, so it is also used as a raw material for polyurethane resins and polyester resins. 

"NEWPOL PE" products are pluronic type non-ionic surfactants (polyoxyethylene polyoxypropylene block polymer) that are used in a variety of fields. 

Structrural formula of "NEWPOL PE" products

 Pluronic type nonionic surfactant (polyoxyethylene polyoxypropylene block copolymer)

Main applications of "NEWPOL PE" products

"NEWPOL PE" products is used in a variety of applications due to the following features. 

As a nonionic surfactant, it exhibits surfactant performance even in the presence of acids, alkalis, and metallic salts, and because it is polyether-based, it does not hydrolyze. 

It has relatively low foaming and good foam breaking properties among nonionic surfactants. 
Dissolves in water at any ratio as long as the temperature is below the cloud point. 


Raw materials for detergent

"NEWPOL PE" products can be used as raw materials for household laundry detergents, furniture detergents, dishwasher detergents, car wash detergents, and toilet aromatic detergents. NEWPOL PE-68, PE-78, and PE-108, which are solid at room temperature, have low hygroscopicity and can be formulated into powder detergents. Examples of formulations for dishwasher detergents are shown below. 

 <Example of formulation for automatic dishwasher detergent(mass%) >
NEWPOL PE-62: 2% 
Sodium metasilicate: 20% 
Sodium sulfate decahydrate (Glauber's salt): 50% 
Sodium carbonate: 27.9%
CMC: 0.1%
Total: 100% 



"NEWPOL PE" products can be used as raw materials for scouring agents, compound fiber oils, antistatic agents, and glue removers. 


Cleaning agent for machinery and metal parts

"NEWPOL PE" products can be used as raw materials for acid cleaning agents, alkali cleaning agents, electrolytic cleaning agents, and spray cleaning agents. Examples of formulations for corrosion resistance to steel plates in hydrochloric acid and sulfuric acid baths and alkaline soaking detergents are shown below. 

NEWPOL PE-34, PE-61, PE-62, PE-64, PE-71, PE-74, and PE-75 have low foaming properties and are suitable as metal cleaning agents. 

 They are practically non-corrosive to metals, and when used for acid cleaning, they exhibit anti-corrosion properties for steel plates. 

 <Example of alkaline soaking detergent formulation(mass%)>
NEWPOL PE-62 : 6%
Sodium metasilicate: 32%
Sodium phosphate: 20.5%
Soda ash: 14% 
Sodium bicarbonate: 11.5% 
LAS (active ingredient 60%): 16% 
Total: 100%

Corrosion protection for polished steel plate in hydrochloric acid bath
Surfactant Corrosion rate
Corrosion resistance
Product name Additive amount
NEWPOL PE-61 0.05 14.1 65.6
NEWPOL PE-64 0.05 14.4 64.9
NEWPOL PE-68 0.05 15.5 62.2
Sodium lauryl sulfate 0.05 23.2 43.4
None (Control) 41.0 -

[Test Method]
Polished steel plate (4 x 30 x 50 mm) immersed in 15 mass% hydrochloric acid bath at 40°C for 6 hours

Corrosion protection for polished steel plate in sulfuric acid bath
Surfactant Corrosion rate
g m-2h-1
Corrosion resitance
Product name Additive amount
NEWPOL PE-61 0.05 21.0 85.5
NEWPOL PE-64 0.05 15.0 89.7
Sodium lauryl sulfate 0.05 109.0 24.8
Sodium dodecyl benzene 0.05 90.0 37.9
None (Control) 145.0 -

[Test Method]
Polished steel plate (4 x 30 x 50 mm) soaked in a 20 mass% sulfuric acid bath at 60°C for 6 hours. 


Emulsifiers and dispersants

"NEWPOL PE" products can be used as emulsifiers for emulsion polymerization, emulsion stabilizers and pigment dispersants for latex paint, emulsifier for silicone, and emulsifier for agricultural chemicals. 

  When used as an emulsifier for emulsion polymerization of vinyl acetate, NEWPOL PE-64 and PE-68 can be used together to produce resin emulsions with good stability and excellent flowability without using protective colloids. The following are examples of formulations as emulsifiers for emulsion polymerization and as emulsion stabilizers and pigment dispersants for latex paint.

<Formulation example of emulsifier for emulsion polymerization (mass%)> 
Vinyl acetate monomer: 50% 
Potassium persulfate : 0.3% 
NEWPOL PE-64 : 2.5% 
NEWPOL PE-68 : 2.5%
Water : 44.7% 
Total: 100% 

<Example of latex paint formulation(mass%)>
Polyvinyl acetate: 1%
NEWPOL PE-68 (20% aqueous solution): 0.5%
CMC (5% aqueous solution): 16.5% 
Potassium carbonate (50% aqueous solution): 0.01%
Pigment: 72.99% 
Total: 100% 


Additives for synthetic resins

When blended with synthetic resins, it is effective as an antistatic agent, plasticizer, and mold release agent. 

The degree of effectiveness depends on the type of resin and the amount added. Please confirm in advance the optimum type and amount to be added according to the applicable resin. 

The user is responsible for determining the suitability and safety of the product for each application.

The following are examples of formulations of sanitizing detergents for use in food processing plants.

Main lineup of Sanyo Chemical's pluronic type nonionic surfactant "NEWPOL PE" products 

Properties of pluronic type nonionic surfactants "NEWPOL PE" (1)
*Measured in 25 mass% aqueous solution
Average molecular weight Appearance
Color scale
Polyoxypropylene chain portion Total
NEWPOL PE-34 Approx.1,000 Approx.1,700 Colorless liquid 10
NEWPOL PE-61 Approx.1,750 Approx.2,000 Colorless liquid 10
NEWPOL PE-62 Approx.1,750 Approx.2,400 Colorless liquid 10*
NEWPOL PE-64 Approx.1,750 Approx.3,100 Colorless paste 10
NEWPOL PE-68 Approx.2,000 Approx.8,000 White flakes 10
NEWPOL PE-71 Approx.2,000 Approx.2,200 Colorless liquid 10
NEWPOL PE-74 Approx.2,000 Approx.3,100 Colorless paste 10
NEWPOL PE-75 Approx.2,000 Approx.3,500 Colorless paste 10
NEWPOL PE-78 Approx.2,000 Approx.9,400 White flakes 10*
NEWPOL PE-108 Approx.3,250 Approx.16,000 White flakes 10*
Properties of pluronic type nonionic surfactants "NEWPOL PE" (2)
*Measured using the sealed tube method
(1wt% aq.)
Melting point
Freezing point

Cloud point
(1wt% aq.)

Specific gravity
NEWPOL PE-34 6.3 - -1 63 1.03
NEWPOL PE-61 6.0 - -30 24 1.00
NEWPOL PE-62 6.0 - -4 30 1.03
NEWPOL PE-64 6.1 - 15 59 -
NEWPOL PE-68 7.0 53 - 113 * -
NEWPOL PE-71 6.0 - -30 21 1.00
NEWPOL PE-74 6.2 - 15 56 -
NEWPOL PE-75 6.1 - 17 69 -
NEWPOL PE-78 7.0 54 - 110 * -
NEWPOL PE-108 7.2 57 - 105 * -
Properties of the pluronic type non-ionic surfactants "NEWPOL PE" (3) 
*: Ross-Miles method 
Kinematic viscosity
Surface tention
mN/m (20℃)
Foaming property*
0.1wt% aq. 1.0wt% aq. 0.1wt% aq. 1.0wt% aq.
Immediately after After 5min Immediately after After 5min
100 - 48.8 45.3 22 2 24 17
140 - 45.4 42.0 18 0 9 0
200 - 48.0 45.0 21 4 25 5
300 - 48.0 45.6 28 7 34 10
- 360 51.2 49.6 48 12 53 14
180 - 44.8 42.1 8 0 5 0
450 - 46.8 45.8 30 7 46 8
490 - 47.0 45.8 32 13 45 29
- - 49.0 46.4 48 12 55 15
- 2200 47.2 45.0 48 12 53 15

Container size

Bag Can Drum
NEWPOL PE-34 - 18kg 200kg
NEWPOL PE-61 - 18kg 200kg
NEWPOL PE-62 - 18kg 200kg
NEWPOL PE-64 - 18kg 200kg
NEWPOL PE-68 20kg - -
NEWPOL PE-71 - 18kg 200kg
NEWPOL PE-74 - 18kg 200kg
NEWPOL PE-75 - 18kg 200kg
NEWPOL PE-78 20kg - -
NEWPOL PE-108 20kg 18kg -

Please be sure to read the "Safety Data Sheet" (SDS) for each product and sub-material (chemical) before handling the products listed on this website. The SDS can be obtained from here.

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