Polypropylene glycol (PPG) for polyurethane raw materials"SANNIX PP, GP" products

What's great about Sanyo Chemical's polypropylene glycol (PPG) "SANNIX PP, GP"

1

World-class technology and Japan's top-class production capacity

In 1960, we developed Japan's first polyether polyol for polyurethane foam and launched it on the market under the trademark "SANNIX. Since then, we have developed a variety of polyether polyols for polyurethane foams for various applications, including ultra-soft, soft, semi-hard, and hard foams, and they have been well received. 

"SANNIX", produced by our world-class technology and Japan's top-class production capacity, is used by most polyurethane foam manufacturers in Japan, and is also widely used overseas. 

2

Full lineup for each application 

Both the "SANNIX PP" products of polypropylene diols and the "SANNIX GP" products of polypropylene triols are available in a wide range of molecular weights, making it possible to select one for each application.

Structural formula of polypropylene glycol (PPG) "SANNIX PP, GP" products 

SANNIX PP products (polypropylene glycol diol type) general formula
 

SANNIX GP products (polypropylene glycol triol type) general formula

About Polyurethane 

Polyether polyol and urethanation reaction

Polyurethanes are polymers obtained by reacting polyol components such as polyether polyol and polypropylene glycol (PPG) with polyisocyanate components. 

Urethanation reaction (resin generating reaction)
 

Physical Properties of Polyurethane

Below are the cohesive energies (unit: kcal/mol) of various molecular structures. 
 It can be seen that urethane bonds have higher cohesive force than other molecular structures. 

Urethane resins are synthesized by the reaction of polymer polyols such as polypropylene glycol (PPG) and isocyanate. It is known that the amorphous polyol component forms the "sea" of soft segments, while the urethane bonds with high cohesive energy form the "islands" of hard segments. The high cohesive energy of the hard segment results in the formation of a "sea" of soft segments. The high cohesive energy of the hard segment provides adhesion to the base material, while the soft segment makes it possible to design a product that also has the ability to follow the base material. 

Main lineup of Sanyo Chemical's polypropylene glycol (PPG) "SANNIX PP, GP" products 

"SANNIX PP" products (polypropylene glycol diol type) 

*1: Open type
*2: Measured after a 10g sample was added to 60mL solution (the volume ratio of water to isopropanol = 60:100, pH = 7) according to the Triol method. 

Number-average molecular weight of SANNIX PP products = 56,100 × 2 / Hydroxyl value
Appearance
(20±5℃)
Hydroxyl value Specific gravity
(20℃/20℃)
Viscosity
mPa・s
(25℃)
Flash point *1
pH *2
SANNIX PP-200 Colorless liquid 560 1.020 60 135 6.0
SANNIX PP-400 Colorless liquid 280 1.013 70 180 6.0
SANNIX PP-600 Colorless liquid 187 1.011 85 225 6.5
SANNIX PP-950 Colorless liquid 118 1.009 140 230 6.5
SANNIX PP-1000 Colorless liquid 112 1.009 145 230 6.5
SANNIX PP-1200 Colorless liquid 98 1.008 165 235 6.5
SANNIX PP-2000 Colorless liquid 56 1.006 305 240 6.5
SANNIX PP-3000 Colorless liquid 35 1.005 590 226 6.5
SANNIX PP-4000 Colorless liquid 27 1.004 990 228 6.5

"SANNIX GP" products (polypropylene glycol triol type)

*1: Open type
*2: Measured after a 10g sample was added to 60mL solution (the volume ratio of water to isopropanol = 60:100, pH = 7)  according to the Triol method. 

Number-average molecular weight of SANNIX GP products = 56,100 × 3 / Hydroxyl value

Appearance
(20±5℃)
Hydroxyl value Specific gravity
(20℃/20℃)
Viscosity
mPa・s
(25℃)
Flash point *1
pH *2
SANNIX GP-250 Colorless liquid 670 1.088 950 189 6.0
SANNIX GP-400 Colorless liquid 400 1.055 365 218 6.5
SANNIX GP-600 Colorless liquid 280 1.042 275 226 6.5
SANNIX GP-1000 Colorless liquid 160 1.025 255 228 6.5
SANNIX GP-1500 Colorless liquid 112 1.020 300 228 6.5
SANNIX GP-3000 Colorless liquid 56 1.012 500 230 6.5
SANNIX GP-4000 Colorless liquid 42 1.011 660 235 6.5

Viscosity-temperature characteristics of Sanyo Chemical's polypropylene glycol (PPG) "SANNIX PP, GP" products  

The viscosity-temperature curves for the "SANNIX PP" products (polypropylene glycol diol type)
and "SANNIX GP" 
product (polypropylene glycol triol type)  are shown below. 

"SANNIX PP" products (polypropylene glycol diol type) 

Viscosity-temperature curve of "SANNIX PP" products (polypropylene glycol diol type) 

"SANNIX GP" products (polypropylene glycol triol type) 

Viscosity-temperature curve of "SANNIX GP" products (polypropylene glycol triol type) 

Precautions for use

Before handling this product, be sure to read the "Safety Data Sheet" (SDS) for this product and its sub-materials (chemicals). The SDS can be obtained here. https://www.sanyo-chemical.co.jp/products/en/sds/ 

Related Information

Related products 

Links to Sanyo Chemical's corporate site

"SANNIX PP" products (polypropylene glycol diol type) 
SANNIX PP-200
SANNIX PP-400SANNIX PP-600SANNIX PP-950, SANNIX PP-1000
SANNIX PP-1200, SANNIX PP-2000SANNIX PP-3000SANNIX PP-4000

"SANNIX GP" products (polypropylene glycol triol type)
SANNIX GP-250SANNIX GP-400SANNIX GP-600SANNIX GP-1000
SANNIX GP-1500SANNIX GP-3000SANNIX GP-4000

SANNIX GP-3000RSANNIX GP-3700M

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