Polymer Modification
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Styrenic Block Copolymers

Styrenic block copolymers (SBCs) are made by styrene and butadiene linked homopolymer blocks. They belong to the class of thermoplastic elastomers (TPE) where elastic and thermoplastic behaviour are joined together in the same material.

Versatile tuning of final product properties can be easily obtained by mixing with other polymers, oil and fillers allowing wide product applications in bitumen for road paving and roofing, adhesives, sealants, coatings, footwear, toys, automotive, personal hygiene, packaging goods market.

BUSS ChemTech developed the continuous hydrogenation of the styrene block copolymer solution, where the double bonds on the macromolecular backbone are hydrogenated, improving the modified polymer properties.


Polyalphaolefins (PAOs) comprise a wide range of synthetic base oils which can be used in industrial gear oils, hydraulic oils, aviation lubricants, engine oils, compressor lubes, drilling fluids, heat transfer fluids, dielectric fluids, greases, and natural gas engine oils.

PAO products are produced through the hydrogenation of oligomers (such as dimers, trimers, tetramers). Synthetic base stocks are oligomers of small molecules, synthesized to a defined molecular weight and distribution.

The BUSS-Loop® Reactor has been used for decades to carry out PAO hydrogenation.

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Gianluca Premoli

Business Manager Reaction Technology

Other Topics of Interest

Success Story: Conti Hydrogenation of SBS

At a client’s request, we developed a continuous process for the production of SBES, an important thermoplastic elastomer. Two plants were built!

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Fact Sheet:

Gas-liquid Reactions

Click below to download our Gas-Liquid Reactions Fact Sheet.

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BUSS-Loop® Reactor Technology

The heart of our gas-liquid reaction process designs is the technology we invented in the late 1940’s and that we have been improving on ever since.

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