Our Industries

Set Technology in Various Industries. Extensive Know-How. Proven Track Record.

Compounded materials are used where high-performance demands are required. They are in service across most industries in ever-growing application fields. The innovative BUSS Kneader Technology serves you where traditional compounding systems reach their limits, no matter if your material comes as pellets, powders, liquids, bales, flakes or in any other form.

Technology Strengths – BUSS Compounding Advantages

The many polymeric and various other feedstock materials that require compounding tasks pose individual challenges for each process. The BUSS Kneader is a specialized compounding equipment providing flexible solutions for your challenges.

  • Shear-Gap Control | Shear-Sensitive Compounds

  • Temperature Control At Any Position | Temperature-Sensitive Compounds
  • Intensive Distributive Mixing | High Filler-Loadings

  • Reactive Compounding | Narrow Residence Time Distribution

  • Maximum Process Flexibility | Meeting Narrow Process Windows where needed
  • Abrasion & Corrosion Resistance | Tailored Process Part Materials
COMPEO 137 camB

PVC Pelletizing

PVC is one of the three most-used plastics apart from PE and PP polyolefins.

Its numerous adaptation possibilities during processing and compounding have opened up wide-ranging applications. Melt compounding and pelletizing is used in instances where direct extrusion of dry blend into a finished part is not possible or economical. The reasons for this may be frequent product changes, small batch sizes, difficult processing conditions, problematic storage, or maintenance and other logistical issues. BUSS compounding technology, in particular the COMPEO compounder, offers a wide range of production options.

Rigid PVC (PVC-U)

Information
  • Extruded profiles for interior and exterior uses
  • High-fill extrusion grades
  • Injection moulding grades for pipes and fittings
  • Blow moulding grades for bottles and containers
  • WPCs (wood-plastic composites)
  • C-PVC (chlorinated PVC)
  • Alloys and blends
BUSS Compounding Advantage
  • Temperature Control At Any Position | Temperature-Sensitive Compounds
  • Intensive Distributive Mixing | High Filler-Loadings

  • Abrasion & Corrosion Resistance | Tailored Process Part Materials

Soft PVC (PVC-P)

Information
  • Cable grades: insulation, sheathing and bedding compounds
  • Extrusion materials for profiles and hoses
  • Medical grade applications
  • Injection moulding compounds
  • Shoe sole material (also with blowing agent)
BUSS Compounding Advantage
  • Temperature Control At Any Position | Temperature-Sensitive Compounds
  • Intensive Distributive Mixing | High Filler-Loadings

Calendering

BUSS has more than 50 years of experience in feeding calenders.

The BUSS calendering compounding technology offers enormous benefits, particularly in the preparation of PVC for the production of films and sheets in a wide range of widths and thicknesses.

Luxury Vinyl Tiles (LVT)

Information

Luxury Vinyl Tiles, known as LVT, are floor tiles on a vinyl or PVC basis. Due to their vinyl base and the possibility of incorporating appreciable recycling fractions, these tiles have a low CO2 footprint as well as a good energy balance. Thanks to their outstanding properties, Luxury Vinyl Tiles are now a highly esteemed floor covering in residential, commercial and public buildings alike.

BUSS Compounding Advantage
  • Temperature Control At Any Position | Temperature-Sensitive Compounds
  • Intensive Distributive Mixing | High Filler-Loadings

  • Abrasion & Corrosion Resistance | Tailored Process Part Materials

Sheet & Film

Information

Calendering is used for making foils/film/sheet out of plastics such as PE, PET or rigid PVC, as well as rubber, metal and paper. Calender types are designated L, F, I or Z according to the arrangement of the various rolls.

BUSS Compounding Advantage
  • Temperature Control At Any Position | Temperature-Sensitive Compounds
  • Intensive Distributive Mixing | High Filler-Loadings

  • Abrasion & Corrosion Resistance | Tailored Process Part Materials

Cable Compounds

Cable insulation mass out of various different plastics.

Depending on requirements, cable insulation mass comprises various different plastics. They include soft PVC, TPE, PPE, EEFE, PVA, and various kinds of polyolefin. The requirement profiles are characterized by a variety of influences. These include technological advances in end uses such as electromobility, DC technology, and global megatrends such as renewable energy and decentralization of energy supply. Also regulatory provisions including security of supply, flame retardance, substitution of problematic formulation ingredients, and product lifetime, can exert great influence. Supplying industries, businesses and private parties with fibre optic technology (FTTH or FTTB) is soon becoming the norm in data transmission, and the tightest installation conditions are increasingly a challenge. These can be mastered, for example, by means of highly flexible and minimalized layer thicknesses. In the following segments, requirements are precisely addressed with sophisticated solutions by the BUSS cable compounds compounding technology.

HFFR

Information

Polyolefins have outstandingly good insulation properties, but are so easily combustible that they have to be made flame-retardant accordingly. In the early 1980s the first alternatives to the PVC compounds were developed.

BUSS Compounding Advantage
  • Shear-Gap Control | Shear-Sensitive Compounds

  • Temperature Control At Any Position | Temperature-Sensitive Compounds
  • Intensive Distributive Mixing | High Filler-Loadings

  • Reactive Compounding | Narrow Residence Time Distribution

  • Maximum Process Flexibility | Meeting Narrow Process Windows where Needed

XLPE Insulation (MV-EHV | AC & DC)

Information

Peroxide cross-linkable compounds have been used in the cable industry ever since the process was patented in the 1960s. Cross-linkable XLPE are increasingly used for medium and high voltage AC cable insulation. For HV DC cables they are the preferred insulation material.

BUSS Compounding Advantage
  • Temperature Control At Any Position | Temperature-Sensitive Compounds
  • Maximum Process Flexibility | Meeting Narrow Process Windows where Needed

Semicon (MV-EHV | AC & DC)

Information

Medium- and high-voltage cable insulation is enclosed between two concentric semiconducting layers to homogenize the electrical field in the insulation material. These layers generally comprise ethylene-based polymers like EVA or EBA, with a high content of conductive materials.

BUSS Compounding Advantage
  • Shear-Gap Control | Shear-Sensitive Compounds
  • Temperature Control At Any Position | Temperature-Sensitive Compounds
  • Intensive Distributive Mixing | High Filler-Loadings

  • Maximum Process Flexibility | Meeting Narrow Process Windows where Needed

PVC Compounds

Information

PVC has been used for cable insulation since 1930, originally as a replacement for rubber. Due to their relatively high dielectric strength, soft PVC cable insulation compounds are used at AC voltages of up to 10 kV.

BUSS Compounding Advantage
  • Temperature Control At Any Position | Temperature-Sensitive Compounds
  • Intensive Distributive Mixing | High Filler-Loadings

Sioplas (LV Insulation)

Information

Cross-linked polyethylene (PEX) can be used at significantly higher operating temperatures, is mechanically stronger, more resistant to organic liquids, and enables thinner wall thicknesses. Silane cross-linkable cable compounds are also known as PEX-b or Sioplas®.

BUSS Compounding Advantage
  • Temperature Control At Any Position | Temperature-Sensitive Compounds
  • Reactive Compounding | Narrow Residence Time Distribution

Masterbatch

After compounding to masterbatches, metering and processing the granulate is much easier for end users. 

Today, in most cases masterbatch (MB) comprises a concentrate of colorants, fillers, additives or other ingredients for cleanly and easily attaining specific characteristics needed for the end application. Since many of the ingredients are originally in powder or liquid form, they would otherwise be difficult to handle or require considerable processing outlay.

Black, Additive & Filler Masterbatch

Information

Standard processing masterbatch compounding machinery can often be used instead of complex compounding systems. There are three masterbatch compounding methods: Premix, split-feed or colour matching.

BUSS Compounding Advantage
  • Shear-Gap Control | Shear-Sensitive Compounds

  • Temperature Control At Any Position | Temperature-Sensitive Compounds
  • Intensive Distributive Mixing | High Filler-Loadings

  • Abrasion & Corrosion Resistance | Tailored Process Part Materials

Performance Compounds

Adding fillers and reinforcing agents to thermoplastic results in materials with improved properties.

The availability of advanced materials manufacturing processes opens up many supplementary and new opportunities in plastics production. These include for example metallocene-catalyzed polymerization reactions that allow the tailoring of property profiles with so-called polyolefin standard plastics, or the skilful combination of fillers and reinforcing agents for better mutual effect. This often allows their use in applications previously reserved for Engineering Plastics. Cost-efficient extended solutions can thus be found that are tailored to the respective requirements. The usually lower processing temperatures of these base polymers also enable optimized energy/mass balances and carbon footprints as well as easier recyclability. The clever use of compounding features significantly enhances freedom of design both for formulation and product development.

Antistatica

Information

Due to the very high volumetric and surface resistances of polymers such as polystyrene, polycarbonates and polyolefins, electrostatic charges can only dissipate very slowly. Antistatic additives can be used to reduce surface or volumetric resistance to where charges can dissipate sufficiently quickly.

BUSS Compounding Advantage
  • Maximum Process Flexibility | Meeting Narrow Process Windows where Needed

FRTP (Carbon & Glas Fiber)

Information

There are basically two reasons for working fillers into a plastic matrix: to optimize the compound material properties, or to save costs. Surface coatings are also an important aspect. They can e.g. influence agglomerate formation, material flowability, and adequate wetting during compounding.

BUSS Compounding Advantage
  • Shear-Gap Control | Shear-Sensitive Compounds

  • Intensive Distributive Mixing | High Filler-Loadings

  • Reactive Compounding | Narrow Residence Time Distribution

  • Maximum Process Flexibility | Meeting Narrow Process Windows where Needed
  • Abrasion & Corrosion Resistance | Tailored Process Part Materials

NFC (Natural Fibers)

Information

Natural Fiber Composites (NFC)  have been developed during the industrial revolution, new applications were created with the use of chemical agents for bonding natural fibers and natural fiber composites. The specific properties of natural fibers have always made them a desirable material.

BUSS Compounding Advantage
  • Shear-Gap Control | Shear-Sensitive Compounds

  • Temperature Control At Any Position | Temperature-Sensitive Compounds
  • Intensive Distributive Mixing | High Filler-Loadings

  • Reactive Compounding | Narrow Residence Time Distribution

  • Maximum Process Flexibility | Meeting Narrow Process Windows where Needed
  • Abrasion & Corrosion Resistance | Tailored Process Part Materials

Bitumen Compounds

Information

From a chemical point of view, bitumen comprises the semi-solid to spring hard, fusible, high molecular weight hydrocarbon mixture obtained by fractional distillation of petroleum, and the carbon disulfide soluble components of natural asphalts and paraffin and montan waxes. Bitumen belongs to the thermoplastic materials.

BUSS Compounding Advantage
  • Intensive Distributive Mixing | High Filler-Loadings

  • Maximum Process Flexibility | Meeting Narrow Process Windows where Needed

Energy & Electrical

Adding electrical performance to polymer-based compounds combines the benefits of the metal and plastic material world.

Plastics have many superior properties over other materials. In certain application fields, however, electrical conductivity is the key performance requirement.

Battery Electrode Compounds

Information

Sustainable and decentralized generation, storage and use of energy play an important role in the development of accumulator and battery systems. The knowledge acquired over decades of handling conductive materials, which may also be on a nano scale (such as graphene or different variants of carbon nanotubes (CNTs)), enables BUSS process developers to find, evaluate and successfully implement customized solutions.

BUSS Compounding Advantage
  • Shear-Gap Control | Shear-Sensitive Compounds

  • Intensive Distributive Mixing | High Filler-Loadings

  • Maximum Process Flexibility | Meeting Narrow Process Windows where Needed
  • Abrasion & Corrosion Resistance | Tailored Process Part Materials

Anode Paste

Information

Anode paste is critically important for the industrial production of aluminium. It takes about 500 kg of carbon anode to produce one ton of aluminum. Since the electrolysis process is absolutely continuous, the supply of anodes must not be interrupted.

BUSS Compounding Advantage
  • Shear-Gap Control | Shear-Sensitive Compounds

  • Intensive Distributive Mixing | High Filler-Loadings

  • Maximum Process Flexibility | Meeting Narrow Process Windows where Needed
  • Abrasion & Corrosion Resistance | Tailored Process Part Materials

Highly Conductive Compounds

Information

Highly conductive compounds are for example used as the material for the bipolar plates in fuel cells. Conductivity must be guaranteed both at room temperatures and under hot operating conditions.

BUSS Compounding Advantage
  • Shear-Gap Control | Shear-Sensitive Compounds

  • Intensive Distributive Mixing | High Filler-Loadings

  • Maximum Process Flexibility | Meeting Narrow Process Windows where Needed
  • Abrasion & Corrosion Resistance | Tailored Process Part Materials

Engineering Plastics

Engineering plastics qualify for technical components that require stringent mechanical and thermal properties.

Engineering plastics, also called construction plastics, can be used for the most demanding applications in terms of mechanical strength, heat resistance and resistance to chemical attack. In the so-called plastics pyramid, they are therefore higher than standard plastics such as PE, PE and PVC, but still below the high-performance plastics. In many cases, engineering plastics are an excellent alternative to metals, glass or even ceramics. With function-integrated design and construction as well as sophisticated production methods, customized compounds can be used for realizing high-quality and cost-efficient components. They therefore offer a unique potential for innovation in a wide variety of applications such as automotive and industrial, renewable energy, medical technology and transport. Compounding with its specific possibilities is often the key to achieving the necessary material properties. The engineering plastics compounding systems by BUSS are the support for the production of such specialized materials.

Fluoropolymers

Information

The exceptional properties of fluoropolymers are important for many high-tech applications. In addition to exceptionally good chemical resistance, they have excellent electrical and thermal properties as well as being nonflammable and difficult to wet. They also have the lowest coefficients of friction.

BUSS Compounding Advantage
  • Temperature Control At Any Position | Temperature-Sensitive Compounds
  • Intensive Distributive Mixing | High Filler-Loadings

  • Maximum Process Flexibility | Meeting Narrow Process Windows where Needed
  • Abrasion & Corrosion Resistance | Tailored Process Part Materials

PBT / PET

Information

PET (Polyethylene terephthalate) and PBT (Polybutylene terephthalate) polymers belong to the polyesters family. PET occurs in form of an amorphous moulding compound (PET-A) or a semicrystalline material (PET-C). PBT is considered to be partially crystalline. Both are thermoplastics and produced by polycondensation.

BUSS Compounding Advantage
  • Temperature Control At Any Position | Temperature-Sensitive Compounds
  • Intensive Distributive Mixing | High Filler-Loadings

  • Maximum Process Flexibility | Meeting Narrow Process Windows where Needed
  • Abrasion & Corrosion Resistance | Tailored Process Part Materials

Polyamide (PA)

Information

Polyamide (PA) or Nylon based compounds belong to technical plastics, often known as Engineering Plastics due to their main strengths and respective applications: technical components for stringent mechanical and thermal requirements, with good resistance to aggressive chemicals and demanding environments.

BUSS Compounding Advantage
  • Temperature Control At Any Position | Temperature-Sensitive Compounds
  • Intensive Distributive Mixing | High Filler-Loadings

  • Abrasion & Corrosion Resistance | Tailored Process Part Materials

Polycarbonate (PC)

Information

Polycarbonate (PC) compounds are technical components with excellent impact strength over a wide range of continuous operating temperatures whose excellent transparency enables widespread optical and data medium applications. PC compounds are also a preferred construction material due to their good flame retardant properties.

BUSS Compounding Advantage
  • Temperature Control At Any Position | Temperature-Sensitive Compounds
  • Intensive Distributive Mixing | High Filler-Loadings

  • Maximum Process Flexibility | Meeting Narrow Process Windows where Needed
  • Abrasion & Corrosion Resistance | Tailored Process Part Materials

Thermosets

Thermosets are rigid polymer materials, three-dimensionally cross-linked after curing. 

Thermosetting plastics, also known as thermosets, are plastics that become rigid and nondeformable after hardening. They are one of the three different groups into which polymers can be divided – thermoplastics, elastomers and thermosets – according to thermosetting degree of the macromolecular chains. While thermoplastics have no cross-linking thermosetting points and are therefore fusible, elastomers and thermosets are thermosetting, not fusible, and disintegrate if the decay temperature is exceeded (pyrolysis).

Aminoplasts, Epoxies, Phenolics

Information

The extremely high thermo-mechanical strength of thermosets provide excellent electrical properties and exceptional resistance to chemicals due to their high cross-linking density, but also places high demands on thermoset compounding technology.

BUSS Compounding Advantage
  • Temperature Control At Any Position | Temperature-Sensitive Compounds
  • Intensive Distributive Mixing | High Filler-Loadings

  • Maximum Process Flexibility | Meeting Narrow Process Windows where Needed
  • Abrasion & Corrosion Resistance | Tailored Process Part Materials

EMC Compounds

Information

Epoxy moulding compounds (EMC) consist of a polymer matrix (epoxy resins, hardener and accelerator catalyst) mixed with fillers, reinforcing materials, pigments, release agents, etc. and formed into pellets or chips. Epoxy resin moulding compounds undergo a polyaddition reaction, i.e. no by-products are formed during moulding.

BUSS Compounding Advantage
  • Temperature Control At Any Position | Temperature-Sensitive Compounds
  • Intensive Distributive Mixing | High Filler-Loadings

  • Maximum Process Flexibility | Meeting Narrow Process Windows where Needed
  • Abrasion & Corrosion Resistance | Tailored Process Part Materials

Bioplastics

Ecological awareness drives new development in the field of bioplastics. 

Bioplastics have been known for a long time. Their industrial production started in 1869, first based on cellulose, and then on casein in large quantities as artificial horn in the early twentieth century. With the technical breakthrough soon afterwards to petroleum-based plastics, with production at much lower cost, bioplastics were no longer produced. It was not until decades later, in the 1980s, that rising crude oil prices and gradually changing ecological awareness led to interesting new developments in the field of bioplastics.

PLA / PHA / PBAT / PBS

Information

The terms bioplastics or biopolymers are still not used consistently. However, they mostly include a large number of different plastics that fulfil at least one of two criteria: They compomise a proportion of renweable raw materials or they are biodegradeable.

BUSS Compounding Advantage
  • Shear-Gap Control | Shear-Sensitive Compounds

  • Temperature Control At Any Position | Temperature-Sensitive Compounds
  • Intensive Distributive Mixing | High Filler-Loadings

  • Reactive Compounding | Narrow Residence Time Distribution

Paints & Coatings

Thermosetting powder coatings can be functional and/or decorative. 

Powder coatings today mainly comprise thermosetting powders applied electrostatically. Afterwards they are baked to initiate curing by crosslinking according to the specific surface requirements. These can be functional and/or decorative, with an enormous range of colours in matt, semi-gloss or high-gloss finish as well as metallic, structural and soft-touch effects.

Powder Coatings

Information

Functional powder coatings feature a range from antibacterial characteristics to corrosion protection. Main applications are metal coating in general, household appliances, facades, furniture and automobiles, as well as highway reinforcing bars and oil pipeline coatings.

BUSS Compounding Advantage
  • Shear-Gap Control | Shear-Sensitive Compounds

  • Temperature Control At Any Position | Temperature-Sensitive Compounds
  • Intensive Distributive Mixing | High Filler-Loadings

  • Maximum Process Flexibility | Meeting Narrow Process Windows where Needed
  • Abrasion & Corrosion Resistance | Tailored Process Part Materials

Elastomers & Rubber

Elastomers and Rubber provide dimensional stability with elastic deformation properties.

Chemically, elastomers are macromolecules that are irreversibly connected to each other only by a few wide-meshed crosslinking bridges. With thermoplastic elastomers, these crosslinking bridges can be annealed under the influence of heat so that they exhibit a thermoplastic behaviour. Modifications in the rubber compounding technology can be used to produce elastomers with tailored hardness degrees, crosslinking densities and application temperatures.

Rubber Compounds

Information

Excavations have shown that already the Maya knew rubber as a material. Since the 18th century, more applications are described. The invention of the vulcanization process by Charles Goodyear enabled stable elastic properties in cold and hot conditions, and thus the breakthrough to technical applications. At the beginning of the 20th century, German chemists succeeded in producing synthetic rubbers.

BUSS Compounding Advantage
  • Shear-Gap Control | Shear-Sensitive Compounds

  • Temperature Control At Any Position | Temperature-Sensitive Compounds
  • Reactive Compounding | Narrow Residence Time Distribution

  • Maximum Process Flexibility | Meeting Narrow Process Windows where Needed

Silicone Elastomers

Information

Due to their typically inorganic basic structure on the one hand and their organic radicals on the other, silicones hold a structurally intermediate position between inorganic and organic compounds. They are hybrids and have a unique range of properties unmatched by any other plastic.

BUSS Compounding Advantage
  • Intensive Distributive Mixing | High Filler-Loadings

  • Reactive Compounding | Narrow Residence Time Distribution

  • Maximum Process Flexibility | Meeting Narrow Process Windows where Needed

Hot Melt Adhesives

Information

Hot melt adhesives have advantages over conventional adhesives in various ways. They are quickly processed, and rapidly become effective after cooling. Unlike solvent-based or 2-component adhesives, no hardening or reaction time is needed.

BUSS Compounding Advantage
  • Intensive Distributive Mixing | High Filler-Loadings

Thermoplastic Elastomers

Information

Thermoplastic elastomers constitute a family of materials combining the characteristics of elastomers with the recyclability and processability advantages of plastics. TPEs do not have to be vulcanized like rubber, and can be processed by conventional methods such as injection moulding, extrusion and blow moulding.

BUSS Compounding Advantage
  • Intensive Distributive Mixing | High Filler-Loadings

PIB Compounds

A material with tailored mechanical properties in various forms.

Polyisobutylene (PIB) belongs to the polymer family of olefins. It has been produced industrially since the 1930’s and is available in wide-ranging viscosities from oily to rubbery. Its mechanical properties depend strongly on the mean molar mass, making it suitable in technical and food applications.

Technical PIB

Information

Polyisobutylene (PIB) belongs to the polymer family of olefins. Its mechanical properties depend strongly on the mean molar mass. Special features include the excellent electrical insulating properties and dielectric values, very good resistance to acids, alkalis and salt solutions, and very low water vapour and gas permeabilities.

BUSS Compounding Advantage
  • Intensive Distributive Mixing | High Filler-Loadings

  • Maximum Process Flexibility | Meeting Narrow Process Windows where Needed

Gumbase PIB

Information

PIB is often used as an elastomeric formulation in the basic mass of chewing gum, the so-called gumbase. In contrast to the natural rubbers originally used, the individual requirement profiles of the variety, brand and manufacturer-specific characteristics can be very well met with the wide range of different PIB variants together with other recipe ingredients.

BUSS Compounding Advantage
  • Intensive Distributive Mixing | High Filler-Loadings

  • Maximum Process Flexibility | Meeting Narrow Process Windows where Needed