Liquid Polybutadiene (LPBD)

Versatile liquid polybutadienes for a wide range of industrial applications

Synthomer’s Lithene products are 100% active, highly unsaturated, liquid polybutadienes available in a range of molecular weights and micro-structures. They are reactive, viscous liquids, have excellent low temperature flexibility, high electrical resistance and are very hydrophobic. Their excellent compatibility with hydrocarbon solvents and many rubbers makes them extremely versatile in a variety of ambient, UV and heat curable applications. Maleic anhydride grafting additonally allows the liquid polybutadienes to react with amines and polyols, while increasing polarity to enhance adhesion direct to metal. Lithenes are widely used for:

  • Sulphur cured flexible automotive sealants.
  • Direct to metal adhesion promotors for the automotive industry.
  • Sulphur or peroxide curable co-agents in rubber and TPEs.
  • Electrical potting resins.
  • Reactive plasticisers in rubber compounds.
  • Solvent coating defoaming additives.
  • Non volatile reactive coating diluents
  • Formulation of hydrophobic films and compounds.
  • Excellent low temperature profile.
  • Very low VOC.
  • High electrical resistance.
  • Processed through sulphur, peroxide or oxidative curing.

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Group Tradename Chemistry Description
LITHENE® LITHENE® ULTRA AH LPBD Lithene ultra® AH is a highly viscous, low molecular weight, liquid polybutadiene with a high content of 1,2 vinyl and cyclic vinyl microstructures. It is a low odour  and low VOC product used as a  binder in automotive adhesives, coagent for EPDM rubbers and in hard electrical encapsulation systems.   TYPICAL APPLICATIONS   Automotive semi structural  adhesives Hard electrical encapsulants Coagent in EPDM rubber compounds   Lithene ultra® AH is despatched from our UK production plant.
LITHENE® LITHENE® ULTRA AL LPBD Lithene ultra® AL is a viscous low molecular weight, liquid polybutadiene with high content of 1,2 vinyl and cyclic vinyl microstructures. It has low odour and is used as a binder in automotive sealants and in UV cured flexographic printing plates.   TYPICAL APPLICATIONS   Automotive sound damping sealants Automotive semi structural adhesives Antifoaming coating additives Plasticiser for flexographic printing plates   Lithene ultra® AL is despatched from our UK production plant.
LITHENE® LITHENE® ULTRA AL-15MA LPBD Lithene ultra® AL-15MA is a highly viscous, low molecular weight, liquid polybutadiene. It is produced from the low odour base Lithene ultra® AL, adducted with 15 parts maleic anhydride. It is used as a highly efficient adhesion promoter in sulphur cured automotive sealants.   TYPICAL APPLICATIONS   Adhesion promoter in automotive sealants and semi structural adhesives Rubber to metal adhesion promoter Electrical encapsulants   Lithene ultra® AL-15MA is despatched from our UK production plant.
LITHENE® LITHENE® ULTRA N4-5000 LPBD Lithene ultra® N4-5000 is a medium viscosity, narrow molecular weight, liquid polybutadiene with a low content of 1,2 vinyl micro structure. It is extremely low in both odour and volatiles and it can be used as a component in PU mould release formulations or as a base for further chemical modification such as maleinisation.    TYPICAL APPLICATIONS   Polyurethane foam mould release additive Dry sand binder Base polymer for maleinisation   Lithene ultra® N4-5000 is despatched from our UK production plant.
LITHENE® LITHENE® ULTRA N4-5000-10MA LPBD Lithene ultra® N4-5000-10MA is a viscous, low molecular weight, liquid polybutadiene. The polymer is very low in odour and volatiles and is produced from a narrow molecular weight polybutadiene base, adducted with 10 parts maleic anhydride.   TYPICAL APPLICATIONS: Soft, isocyanate free, electrical encapsulants Rubber to metal bonding   Lithene ultra® N4-5000-10MA is despatched from our UK production plant>
LITHENE® LITHENE® ULTRA N4-5000-15MA LPBD Lithene ultra® N4-5000-15MA is a highly viscous, low molecular weight, liquid polybutadiene. It is very low in odour and volatiles and is based on a narrow molecular weight polybutadiene adducted with 15 parts maleic anhydride.   TYPICAL APPLICATIONS:   Soft, isocyanate free electrical encapsulants Adhesion promoter in automotive sealants Rubber to metal adhesion promoter Impact modifier for polyester resins   Lithene ultra® N4-5000-15MA is despatched from our UK production plant.
LITHENE® LITHENE® ULTRA N4-9000 LPBD Lithene ultra® N4-9000 is a viscous, narrow molecular weight liquid polybutadiene with a low content of 1,2 vinyl micro structure. It is extremely low in both odour and volatiles and can be used as a polyurethane additive to improve abrasion resistance.   TYPICAL APPLICATIONS   Polyurethane additive for abrasion resistance Automotive sound damping sealants & adhesives Dry sand binder   Lithene ultra® N4-9000 is despatched from our UK production plant.
LITHENE® LITHENE® ULTRA N4-B-10MA LPBD Lithene ultra® N4-B-10MA is a viscous, low molecular weight, liquid polybutadiene. The polymer is very low in odour and volatiles and is produced from a broad molecular weight polybutadiene base, adducted with 10 parts maleic anhydride.   TYPICAL APPLICATIONS:   Adhesion promoter in automotive sealants Soft, isocyanate free electrical encapsulants Rubber to metal bonding Formulation of slow release fragrance gels   Lithene ultra® N4-B-10MA is despatched from our UK production plant.
LITHENE® LITHENE® ULTRA P4-150P LPBD Lithene ultra® P4-150P is a highly viscous, low molecular weight, liquid polybutadiene with microstructure containing 1,2 vinyl groups. It is very low in both odour and volatiles and can be used in chlorinated rubber feedstocks or automotive sealants.   TYPICAL APPLICATIONS   Feedstock for chlorinated rubber  Automotive sound damping sealants & adhesives    Lithene ultra® P4-150P is despatched from our UK production plant.
LITHENE® LITHENE® ULTRA P4-25P LPBD Lithene ultra® P4-25P is a viscous, low molecular weight, liquid polybutadiene with a medium content of 1,2 vinyl microstructure. It is extremely low in both odour and volatiles and can be used as a reactive plasticiser in flexographic printing plates.   TYPICAL APPLICATIONS   Reactive plasticiser in flexographic printing plates Mould release additive for polyurethane foams Antifoaming coating additives   Lithene ultra® P4-25P is despatched from our UK production plant.
LITHENE® LITHENE® ULTRA PH LPBD Lithene ultra® PH is a viscous, low molecular weight, liquid polybutadiene with a high content of 1,2 vinyl microstructure. It has extremely low odour and volatiles and is used in EPDM rubbers as a coagent and formulation of hard electrical encapsulants.   TYPICAL APPLICATIONS   Coagent in EPDM rubber compounds Hard electrical encapsulants Antifoaming coating additive Reactive plasticiser in UV cure flexographic printing plates   Lithene ultra® PH is despatched from our UK production plant.
LITHENE® LITHENE® ULTRA PM4 LPBD Lithene ultra® PM4 is a low viscosity, low molecular weight, liquid polybutadiene with a medium content of 1,2 vinyl microstructure. It is extremely low in both odour and volatiles and is used as the binder in automotive sound damping sealants, polyurethane mould release systems and solvent based coating additives.   TYPICAL APPLICATIONS   Automotive sound damping sealants Antifoaming coating additives Non volatile drying oil in alkyd coatings Sand binder for paving and moulds   Lithene ultra® PM4 is despatched from our UK production plant.
LITHENE® LITHENE® ULTRA PM4-7.5MA LPBD Lithene ultra® PM4-7.5MA is a medium viscosity, low molecular weight, liquid polybutadiene. It is very low in odour and volatiles and is produced from Lithene ultra® PM4, adducted with 7.5 parts maleic anhydride.   TYPICAL APPLICATIONS   Adhesion promoter in automotive sealants Rubber to metal adhesion promoter Soft, isocyanate free electrical encapsulants   Lithene ultra® PM4-7.5MA is despatched from our UK production plant.
LITHENEACTIV® LITHENEACTIV® 1000 LPBD LitheneActiV® 1000 is a liquid polybutadiene with very high content of 1,2 vinyl microstructure. It is a highly reactive polymer with low volatiles and odour. It is designed for use as a highly effective Type II coagent in peroxide or sulphur cured elastomers where it allows better mixing and enhanced physical cured thermoset properties.   TYPICAL APPLICATIONS  Automotive sulphur or peroxide cured sealants & adhesivesCoagent in sulphur or peroxide cured rubbers and elastomers   LitheneActiV® 1000 is despatched from our UK production plant.
LITHENEACTIV® LITHENEACTIV® 50 LPBD LitheneActiV® 50 is a liquid polybutadiene with very high content of 1,2 vinyl microstructure. It is a highly reactive polymer with low volatiles and odour. It is used as a reactive plasticiser in UV cured flexographic printing plates and as a reactive diluent in solvent based coating systems.   TYPICAL APPLICATIONS   Reactive plasticiser for flexographic printing plates Automotive semi structural adhesives Reactive diluent in solvent based coating systems   LitheneActiV® 50 is despatched from our UK production plant.

Discover how Synthomer’s Lithene liquid polybutadienes can help improve your products

Contact our technical specialists for a no-obligation discussion of how Synthomer’s Lithene liquid polybutadienes can help improve your products.

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