Velvetol®

CAS Number: 345260-48-2
Empirical formula: (C3H6O)nH2O
Chemical name: 1,3-poly-propanediol; po3g

Velvetol® is a family of high-performance polyether polyols based on renewable feedstock.

Thanks to its outstanding characteristics, it can act as an ideal replacement for petroleum-based polyols. Velvetol® offers improved flexibility at low temperatures, without compromising functionality, while increasing the renewable content of your final products, providing easier handling and processing than common alternatives.

Helping you and your customers to meet the increasing global need for more sustainable products, Velvetol® has a significantly lower environmental footprint compared to petrochemical alternatives such as poly-(tetramethylene-ether) glycol (PTMEG)

100% bio-based
Available in various molecular weights
High reactivity

In comparison to the production of petroleum-based PTMEG (evidenced by a peer-reviewed ISO 14000-compliant life cycle assessment), Velvetol® offers up to:

  • Up to 50% reduced global warming potential
  • Up to 33% reduced non-renewable energy consumption
Thermoplastic Polyurethane Elastomers (TPU)
Polyurethane Dispersions (PUDs)
Polyurethane Thermoset Elastomers
  • 180 kg drums
  • Samples available in 1kg vials and 10kg drums


 

Properties

Units

H250

H500

H1000

H2000

H2700

Content

%

100

100

100

100

100

Molecular weight

Dalton

200-300

400-600

900-1100

1900-2100

2600-2800

Hydroxyl no.

mg KOH/g

370-550

280-187

125-102

59.1-53.4

43.2-40.1

Controlled Polymerization Rate

meqKOH/30 kg

ppm

-2.0 - +2.0

<5

-2.0 - +2.0

<5

-2.0 - +2.0

<5

-2.0 - +2.0

<5

-2.0 - +2.0

<5

Acid no.

mg KOH/g

<0.05

<0.05

<0.05

<0.05

Na metal content

ppm

<10

<10

<10

<10

<10

Peroxide content

ppm

<10

<10

<10

<10

<10

Water

ppm

<500

<500

<500

<500

<500

Color

max. 50

max. 50

max. 50

max. 50

max. 50

max. 120

Viscosity (40°C)

mPas

40-60

90-120

200-300

750-900

1550-1850

Density (40°C)

g/ml

1.03

1.020

1.018

1.016

1.016

Melting point

°C

<0

0-5

12-14

16-18

22-25


 

Velvetol®

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