POLYVEST® eCO ST-E 60 Bio

POLYVEST® eCO ST-E 60 Bio is a stereospecific, low viscous and triethoxysilane-terminated liquid polybutadiene having the following composition of double bonds:

1,2-vinyl double bonds approx. 22 %
1,4-trans double bonds approx. 58 %
1,4-cis double bonds approx. 20 %

Our eCO grades present identical physicochemical properties to the traditional POLYVEST® portfolio, as they are based on renewable raw materials according to the mass balance approach.

Typical Applications

POLYVEST® eCO ST-E 60 Bio is used in various fields of application such as:

additive for tires
adhesive and sealants
insulated glass sealants
waterproofing membranes and coatings
dispersion additive for rubber based formulations

Benefits at a glance

Due to its unsaturated polymer backbone and the terminal triethoxysilane functionalities, the apolar and hydrophobic hydrocarbon resin POLYVEST® eCO ST-E 60 Bio is a highly reactive binder with very good dispersing properties of inorganic fillers. POLYVEST® eCO ST-E 60 Bio exhibits the following features:

excellent compatible with solid rubber and recycled rubber
high chemical resistance
good dispersion and chemical modification with high loading capacity of inorganic fillers
high cold resistance by keeping good flexibility at low temperatures
good solubility in aliphatics, aromatics and ethers
low moisture and gas permeability
possibility of moisture induced curing