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Specifications
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Appearance: |
Colorless to pale yellow transparent semisolid |
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Viscosity Average molecular weight: |
93,000–103,000 |
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Volatile (105℃, 2h): |
0.30% max |
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Melt Volume Index (MVI) @130°C, 10 kg cm³/10 min: |
90–150 |
Transport Information
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Parameter |
Specification |
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Capacity |
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Frequency |
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Main Export Countries |
EU, US |
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Capacity/Batch |
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Experience |
Production since 2005 |
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Stock |
Polyisobutylene丨CAS 9003-27-4 is a synthetic elastomer and polyolefin derived from the polymerization of isobutylene. It is a colorless, odorless, and non-toxic hydrocarbon polymer known for its excellent impermeability, chemical resistance, and tackiness. PIB is used in a broad range of applications, including lubricants, adhesives, sealants, rubber formulations, and packaging materials.
Key Applications
1. Lubricant Additives
Acts as a viscosity modifier, dispersant, and pour point depressant.
Forms the backbone of many succinimide dispersants used in motor oils and hydraulic fluids.
Improves lubrication performance and reduces engine deposits.
2. Adhesives and Sealants
Used as a base polymer in pressure-sensitive adhesives (PSAs) and hot melt adhesives.
Provides permanent tack, elasticity, and moisture resistance, particularly in tapes, labels, and roofing membranes.
Excellent in butyl rubber-based sealants for construction and automotive use.
3. Butyl Rubber Production
Polyisobutylene丨CAS 9003-27-4 is one of the two monomers (along with isoprene) used to make butyl rubber (IIR).
Butyl rubber is prized for low gas permeability and weather resistance, ideal for:
Inner tubes
Pharmaceutical stoppers
Seals and gaskets
4. Packaging and Film Applications
Low molecular weight PIBs are used in cling films, chewing gum bases, and moisture barrier films.
Non-toxic variants are FDA-approved for food-contact applications.
5. Fuel and Oil Additives
Enhances fuel performance as a detergent/dispersant carrier fluid in gasoline and diesel formulations.
Helps in preventing carbon buildup in injectors and intake valves.
6. Electrical Insulation
Used in insulating tapes, cables, and dielectric materials for high-voltage applications.
Benefits and Features
Excellent gas and moisture barrier
UV and chemical resistant
Oxidatively stable
Flexible and tacky at room temperature
Compatible with many hydrocarbon resins and oils
FDA-compliant grades available for food and pharma uses
Summary
Polyisobutylene丨CAS 9003-27-4 is a versatile synthetic polymer with applications spanning lubricants, adhesives, sealants, packaging, and rubber manufacturing. Its unique combination of chemical stability, impermeability, and tackiness makes it indispensable in both industrial and consumer products. Whether used as a raw material in butyl rubber or as an additive in engine oils, PIB remains a critical material in performance polymer applications.
