LIQUID POLYBUTADIENES
POLYVEST®
With POLYVEST® we offer a range of stereospecific, low viscous and unsaponifiable liquid polybutadienes with different chemical compositions.
liquid polybutadienes from Evonik
With POLYVEST® we offer a range of stereospecific, low viscous and unsaponifiable liquid polybutadienes with different chemical compositions.
Based on their characteristic microstructure, all POLYVEST® grades exhibit excellent reactivity and can be used for a broad variety of applications, e.g. in the automotive, construction and electronics industry.
The unsaturated polymer backbone of our liquid polybutadienes offers the opportunity for various crosslinking options, like sulfur curing and oxidative drying. Our functionalized POLYVEST® grades provide further options for crosslinking and additional benefits.
Product portfolio liquid polybutadienes
Our POLYVEST® product portfolio consists of the following grades:
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Product |
Description |
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POLYVEST® 110 |
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POLYVEST® EP MV |
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POLYVEST® MA 75 |
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POLYVEST® HT |
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POLYVEST® ST-E 60 |
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POLYVEST® EP MAT |
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Key benefits of POLYVEST® liquid polybutadiene grades
- Low viscosity
- Excellent chemical resistance to acids and bases
- High water resistance
- Excellent electrical insulation properties
- Low temperature flexibility
- Low moisture and oxygen permeability
Markets & Apllications for our liquid polybutadienes
AUTOMOTIVE
POLYVEST® is used in adhesives and sealants for head lamps, sound damper and body & paint shop applications. Additionally, our liquid polybutadiene is added to green tire formulations as reactive plasticizer and substitute for TDAE oil.
CONSTRUCTION
POLYVEST® grades are used in secondary sealants for window glazing, in binder of dusty and dry quartz sand as well as in binder for soil stabilization. Moreover, POLYVEST® can be added as modifier to silicone sealants.
Electronics
POLYVEST® can be used as binder in PU formulations regarding electrical insulation and potting compounds. POLYVEST® MA can substitute isocyanates and act as isocyanate-free hardener.
Printing and inks
POLYVEST® is employed as reactive plasticizer for flexo printing plates and as pigment wetting agent for offset printing inks.
Rubber
POLYVEST® is used as a binder for recycled rubber compounds, modifier in carbon black filled EPDM compounds and as plasticizer in rubber compounds.
Plastics
In the plastics industry, POLYVEST® acts as additive for PU foams, either as cell opener or as release agents.
Aerospace
POLYVEST® HT-A is used as a binder in solid rocket propellants. The liquid polybutadiene reacts with isocyanates to form the necessary urethane network.
Sustainability & POLYVEST® liquid polybutadienes
We have a strong focus on sustainability – both regarding our products (Footprint) but also the applications they are used in (Handprint).
Footprint
The following POLYVEST® grades are available as POLYVEST® eCO:
- POLYVEST® eCO 110 Bio
- POLYVEST® eCO 130 Bio
- POLYVEST® eCO 130 S Bio
- POLYVEST® eCO MA 75 Bio
- POLYVEST® eCO HT Bio
- POLYVEST® eCO ST-E 60 Bio
For improving the footprint, we use raw materials from alternative sources and offer a drop-in solution with a lower carbon footprint. More about our sustainable POLYVEST® eCO for adhesive and sealant applications.
Handprint
The handprint describes the positive sustainable effect on specific applications. See our two examples:
- POLYVEST® HT in window glazing in Sustainability Report 2022
- POLYVEST® ST-E for green tire formulations as featured in the Evonik Next Generation brochure (page 34).
