Polybutenes
Polybutenes (CAS: 9003-29-6) are hydrophobic polymers derived from isobutylene. These versatile materials, with an average molecular weight of approximately 320, exhibit excellent tack, flexibility, and water repellency. They are widely used in various industrial applications, including as plasticizers, lubricants, and components in adhesives and coatings, contributing significantly to material performance and durability.
![Polybutenes ([-CH2C(CH3)2-]x[-CH2CH(C2H5)-]y) — chemical structure, CAS 9003-29-6; Materials Science, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F9003-29-6.png&w=3840&q=75)
Adhesives and Coatings
Polybutenes enhance the tack, flexibility, and water resistance of adhesives and coatings. Their hydrophobic nature provides durable protection and improved adhesion properties in demanding environments.
Plasticizers and Lubricants
Utilised as plasticizers for various polymers and as a key component in lubricants and metal-working fluids, Polybutenes improve material flexibility and reduce friction.
Detergents and Additives
The hydrophobic properties of derivatized Polybutenes make them suitable for use in detergents and as anti-rust additives, offering enhanced surface activity and protection.
Polymer Films
Polybutenes contribute 'cling' properties to LLDPE films, improving their handling and packaging capabilities. This is crucial for applications requiring effective film sealing and containment.
| Linear formula | [-CH2C(CH3)2-]x[-CH2CH(C2H5)-]y |
|---|---|
| Density | 0.84 g/mL at 25 °C |
| Refractive index | n20/D 1.468 |
| Viscosity | 27-33 cSt(38 °C)(lit.) |
| Application | Hydrophobic material is derivatized to make detergents and anti-rust additives. Adds tack, flexibility and water repellency to adhesives and coatings. Contributes ′cling′ to LLDPE films. Plasticizer for polymers, lubricants and metal-working fluids. |
| Composition | isobutylene, >90% |
| Protective equipment | Eyeshields, Gloves |
|---|---|
| Flash point | >113 °C / >235.4 °F |
| Water hazard class (WGK, DE) | 1 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Mol Wt | average Mn ~320 |
|---|---|
| Transition Temp | Tg −90.5 °Cpour point (ASTM D 97) −51 °C |
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What are Polybutenes used for?
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Polybutenes are used to create detergents and anti-rust additives. They also add tack, flexibility, and water repellency to adhesives and coatings, contribute 'cling' to LLDPE films, and act as plasticizers for polymers, lubricants, and metal-working fluids.
What is the CAS number and chemical formula for Polybutenes?
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The CAS number for Polybutenes is 9003-29-6. The linear formula is [-CH2C(CH3)2-]x[-CH2CH(C2H5)-]y.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Polybutenes with a composition of isobutylene, >90%. This product is intended for technical and research purposes and is not represented as USP, BP, or EP grade.
How should Polybutenes be handled safely?
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When handling Polybutenes, it is recommended to use eyeshields and gloves. The flash point is above 113 °C (235.4 °F), and it has a GHS hazard classification of 1 (WGK Germany).
How are Polybutenes packed and shipped?
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Polybutenes are packed and exported by Tech Serve Solutions following stringent quality control measures to ensure product integrity during transit. Specific packaging details are available upon request.
How can I request a sample or quote for Polybutenes?
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To request a sample or quote for Polybutenes, please contact our sales team through the TSS website or by phone. Our experts are ready to assist with your specific requirements.
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