Lithene™ Liquid Polybutadiene (LPBD)

Versatile liquid polybutadienes for a wide range of industrial applications


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

    • Sulphur cured automotive sealants and adhesives.
    • Direct to metal adhesion promotors for the automotive industry.
    • Sulphur or peroxide curable co-agents in rubber and elastomers.
    • Electrical encapsulating resins.
    • Air dry sand binders for sweep in paving grouts.
    • Defoaming additives for solvent based coating resins.
    • Non-volatile reactive coating diluents.
    • Polyurethane additive for improved abrasion resistance.
    •  

Welcome to Synthomer
1:32 Min

Lithene Introduction
2:03 Min

Lithene™ Liquid Polybutadiene (LPBD)

Delivering value with Lithene™

Synthomer’s Lithene™ liquid polybutadiene product range design offers many key properties and when incorporated into end formulations can contribute to exceptional performance benefits in various applications. Core properties of Lithene™ are highlighted below:


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Lithene™ Liquid Polybutadiene (LPBD)

Benefits for the Formulator

The Lithene™ range of products offers formulation and processing flexibility: our grades are supplied as viscous liquids and can be used directly as received, or heated to reduce the viscosity. If required, Lithenes™ can also be mixed at high concentrations with silica to form a dry liquid powder.

Synthomer Lithene™ materials are non hazardous and have very low VOCs, thus simplifying transport or storage. Furthermore, our Lithene™ range is formulated to support environmentally friendly and sustainable end performance. The webcast offers an insight on handling our Lithene grades, as well as highlighting typical applications.


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Recommended Products

Tradename

Applications

Description

LITHENE™

LITHENE™ ULTRA AH

Binder in vulcanized automotive semi structural adhesives

Hard electrical encapsulants

Cross linking coagent in EPDM rubber compounds

A highly viscous, low molecular weight, liquid polybutadiene with a high content of 1,2 vinyl and cyclic vinyl microstructures. Very low odour & volatiles.

LITHENE™ ULTRA AL

Binder in vulcanized automotive sound damping sealants

Automotive semi structural adhesives

Antifoaming coating additives

Reactive plasticiser in flexographic printing plates

A viscous, low molecular weight, liquid polybutadiene with a high content of 1,2 vinyl and cyclic vinyl microstructures.

LITHENE™ ULTRA PM4

Binder in vulcanized automotive sound damping sealants

Antifoaming coating additives

Polyurethane mould release systems

Non-volatile reactive diluent in solvent based alkyd coatings

Sand binder for paving and moulds

A free flowing, low molecular weight, liquid polybutadiene with a medium content of 1,2 vinyl microstructure. Very low odour and volatiles.

LITHENE™ ULTRA P4-25P

Reactive plasticiser in flexographic printing plates

Mould release additive for polyurethane foams

Antifoaming coating additives

A viscous, low molecular weight, liquid polybutadiene with a medium content of 1,2 vinyl microstructure. Very low odour and volatiles.

LITHENE™ ULTRA P4-150P

Feedstock for chlorinated rubber 

Automotive sound damping sealants & adhesives

A highly viscous, low molecular weight, liquid polybutadiene with microstructure containing 1,2 vinyl groups. Very low odour and volatiles.

LITHENE™ ULTRA PH

Cross linking coagent in EPDM rubber compounds

Hard electrical encapsulants

Antifoaming coating additive

Reactive plasticiser in flexographic printing plates

A viscous, low molecular weight, liquid polybutadiene with a high content of 1,2 vinyl microstructure. Very low odour and volatiles.

LITHENE™ ULTRA N4-5000

Polyurethane foam mould release additive

Sand binder for paving and moulds

Base polymer for maleinisation

A medium viscosity, narrow molecular weight, liquid polybutadiene with a low content of 1,2 vinyl micro structure. Very low odour and volatiles.

LITHENE™ ULTRA N4-9000

Polyurethane additive for improved abrasion resistance

Automotive sound damping sealants & adhesives

Sand binder for paving and moulds

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.

LITHENE™ ULTRA AL-15MA

Adhesion promoter in vulcanized automotive sealants and adhesives

Rubber to metal adhesion promoter

Electrical encapsulants

A highly viscous, low molecular weight, liquid polybutadiene functionalised with maleic anhydride. It is produced from Lithene ultra™ AL, adducted with 15 parts maleic anhydride.

LITHENE™ ULTRA N4-5000-10MA

Soft, isocyanate free, electrical encapsulants

Rubber to metal bonding

A viscous, low molecular weight, liquid polybutadiene functionalised with maleic anhydride. It is produced from a narrow molecular weight polybutadiene base, adducted with 10 parts maleic anhydride.

LITHENE™ ULTRA N4-5000-15MA

Soft, isocyanate free electrical encapsulants

Adhesion promoter in vulcanized automotive sealants

Rubber to metal adhesion promoter

Impact modifier for polyester resins

A highly viscous, low molecular weight, liquid polybutadiene functionalised with maleic anhydride. It is produced from a narrow molecular weight polybutadiene base, adducted with 15 parts maleic anhydride.

LITHENE™ ULTRA N4-B-10MA

Adhesion promoter in vulcanized automotive sealants

Soft, isocyanate free electrical encapsulants

Rubber to metal adhesion promoter

Formulation of slow release fragrance gels

A highly viscous, low molecular weight, liquid polybutadiene functionalised with maleic anhydride. It is produced from a low 1,2 vinyl polybutadiene base, adducted with 10 parts maleic anhydride

LITHENE™ ULTRA PM4-7.5MA

Adhesion promoter in vulcanized automotive sealants and adhesives

Rubber to metal adhesion promoter

Soft, isocyanate free electrical encapsulants

A viscous, low molecular weight, liquid polybutadiene functionalised with maleic anhydride. It is produced from Lithene ultra PM4, adducted with 7.5 parts maleic anhydride

LITHENEACTIV™

LITHENEACTIV™ 1000

Binder in vulcanized automotive sealants & adhesives

Crosslinking coagent in sulphur or peroxide cured rubbers and elastomers

A highly viscous liquid polybutadiene with very high content of 1,2 vinyl microstructure. It is a highly reactive polymer with low volatiles and odour. 

LITHENEACTIV™ 50

Reactive plasticiser in flexographic printing plates

Binder in vulcanized automotive sealants & adhesives

Non-volatile reactive diluent in solvent based alkyd coatings

A viscous liquid polybutadiene with very high content of 1,2 vinyl microstructure. It is a highly reactive polymer with low volatiles and odour. 


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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