CAS: 9003-17-2
Lithene PM4 is a low viscosity, low molecular weight, liquid polybutadiene with a medium content of 1,2 vinyl microstructure.
Lithene PM4 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 of Lithene PM4:
-Automotive sound damping sealants
-Antifoaming coating additives
-Non volatile drying oil in alkyd coatings
-Sand binder for paving and moulds
Lithene PM4 is despatched from our UK production plant.
Property / Value / Unit / Method:
Vinyl 1,2 / 15 - 25 / % / LTM 03
Viscosity, @ 25° C / 7.0 - 9.5 / dPa.s / LTM 01
Non volatile content / >99.8 / % / LTM 51
Colour / 200 max / Hazen / LTM 04
Typical molecular weight Mn / 1500 / Da
Molecular weight distribution / Broad
Appearance / Colourless to pale yellow liquid
Lithene PM4 is a low viscosity, low molecular weight, liquid polybutadiene with a medium content of 1,2 vinyl microstructure.
KEYWORDS:
9003-17-2, Lithene, Lithene ultra PM4, Lithene ultra PH, LITHENE ULTRA AL-15MA, LITHENE ULTRA N4-5000-15MA, Lithene ultra AH, Lithene PL, Lithene PL resin, LITHENE AL-15MA
Application Advice of Lithene PM4:
Handling - Lithene PM4 is a low viscosity, easily processed liquid polymer.
Lithene PM4 will flow readily at ambient temperatures but the product viscosity will decrease rapidly with increasing temperature and the product may be warmed to allow easier processing.
Compatibility - Liquid polybutadienes are generally compatible with most aliphatic and aromatic hydrocarbon solvents.
They have limited solubility in alcohols, ketones and esters.
Further details are available on request.
Lithene PM4 is extremely low in odour and volatiles and can be readily formulated into sulphur cured automotive sealants and acoustic dampers, cured at 160 - 200 °C.
Lithene PM4 provides excellent adhesion, flexibility and acoustic damping although metal adhesion can be further increased by inclusion of a functional Lithene grade such as Lithene ultra AL-15MA or Lithene ultra PM4-7.5MA.
Lithene PM4 can be dried oxidatively at ambient temperatures in combination with metallic driers and can be used as a replacement to solvent in alkyd based coatings and as an air dry binder in sand for paving and moulds.
Lithene PM4 can be incompatible with many polar systems making it suitable for use in the formulation of specialised mould release coatings for polyurethanes.
Further application and formulation advice is available on request
Shipping and Storage of Lithene PM4:
Lithene PM4 should be stored in a cool, dry location below +30 °C (+86 °F).
If Lithene PM4 is stored in the original sealed packaging the product has a shelf life of at least 12 months from date of delivery.
Product which has been stored for longer than 12 months should be tested before use.
Containers which have been opened should be purged with dry nitrogen before resealing to protect the remaining product from oxidative skinning.
Further information is available on the datasheet Storage of Lithene Liquid Polybutadienes.
Lithene PM4 is packed in bung top 200litre steel drums containing 175kg.
The minimum order quantity is one pallet (four drums). 900kg IBCs or bulk deliveries are also available.
Product Safety of Lithene PM4:
Before handling, please read the Safety Data Sheet of this product for advice on safety, use and disposal.
Name : Lithene PM4
Appearance: colourless to pale yellow
Molecular weight distribution: broad
Molecular weight average [Mn]: approx. 1.500
Viscosity 25°C [mPas]: approx. 700
Viscosity 50°C [mPas]: approx. 200
Microstructure Vinyl 1,2 [%]: 15 - 25
Microstructure cyclic [%]: -
Lithene PM4 is a low viscosity, low molecular weight, liquid polybutadiene with a medium content of 1,2 vinyl microstructure.
Lithene PM4 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.
Product Type: Polybutadiene
Master Product Number: MITM08755
Product SKUs: ITM13098, ITM13099
CAS: 9003-17-2
LITHENE ULTRA PM4-7.5MA
LITHENE ultra PM4-7.5MA is a medium viscosity, low molecular weight, liquid polybutadiene.
LITHENE ULTRA PM4-7.5MA is very low in odour and volatiles and is produced from LITHENE ultra PM4, adducted with 7.5 parts maleic anhydride.
TYPICAL APPLICATIONS of LITHENE ULTRA PM4-7.5MA:
-Adhesion promoter in automotive sealants
-Rubber to metal adhesion promoter
-Soft, isocyanate free electrical encapsulants
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.
LITHENE products 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