Polyisobutylene

Description

1. Product Overview

Polyisobutylene is a high-molecular-weight, synthetic elastomer derived from isobutylene, recognized for its exceptional chemical stability, impermeability, and flexibility across extreme temperatures. It serves as a critical raw material in industries ranging from automotive lubricants to industrial adhesives and fuel additives, delivering unmatched oxidation resistance and gas-barrier performance. In a market increasingly demanding durability and formulation precision, PIB provides a strategic advantage by reducing maintenance cycles and extending product lifespans, making it an indispensable input for high-performance industrial compounds.

2. Key Specifications & Technical Characteristics

• Chemical composition: Isobutylene homopolymer; fully saturated hydrocarbon backbone

• Purity level: ≥ 99.5% (industrial grade); custom molecular weight grades available (low, medium, high)

• Physical form: Viscous liquid (low MW) or amorphous solid / crumb (high MW)

• Color: Water-white to off-white (APHA ≤ 30 for high-purity grades)

• Density: 0.91 – 0.92 g/cm³ at 20°C

• Molecular weight range: 300 – 4,000+ g/mol, tailored per application

• Viscosity (low MW): 1,000 – 100,000 cP at 100°C

• Packaging options: 180 kg steel drums, 1,000 kg IBC totes, bulk ISO tanks, or 20 MT flexitanks

• Shelf life: 24 months in original sealed container under dry, ambient conditions (15–30°C)

3. Core Industrial Applications

• Automotive & lubricants: Used as a viscosity index improver and dispersant in engine oils, gear oils, and transmission fluids — outperforming competing polymers with superior shear stability and deposit control, reducing engine wear by up to 30%.

• Adhesives & sealants: Serves as a permanent-tack base for pressure-sensitive adhesives, hot melts, and caulks — delivers exceptional cohesion and moisture resistance compared to natural rubber or acrylics, extending bond life in construction and packaging.

• Fuel additives: Critical component in detergent packages for gasoline and diesel — prevents injector fouling and intake valve deposits more effectively than polyether amines under high-heat combustion.

• Electrical insulation: Used in cable-filling compounds and high-voltage grease — its low dielectric constant and water-impermeability outperform petroleum-based jellies, reducing signal attenuation in telecom cables.

4. Competitive Advantages

• Quality consistency: Produced via controlled cationic polymerization with real-time viscosity monitoring; batch-to-batch variation below 2% — validated by ISO 9001:2025 certified labs.

• Supply reliability: Dual-sourced monomer feedstock from cracker-integrated facilities; 99.5% on-time-in-full (OTIF) delivery record across North America, Europe, and Asia-Pacific.

• Logistics capability: Dedicated temperature-controlled fleet for liquid grades; hazardous classification none (non-toxic, non-flammable below 200°C) — simplifies cross-border shipping and warehouse storage.

• Price competitiveness: Long-term take-or-pay contracts with ethylene producers enable stable quarterly pricing, insulated from spot monomer volatility.

• Sustainability: 100% recyclable into process oil; halogen-free formulation supports RoHS and REACH compliance; low-VOC emission profile.

• Technical support: Access to application engineers for formulation optimization, plus full SDS, CoA, and regulatory documentation via digital portal.

5. Commercial & Supply Information

• Minimum order quantity (MOQ): 20 metric tons (MT) per product grade

• Loading capacity (bulk): 20 MT per standard 20-foot dry container (flexitank or drummed pallets)
  *Note: ISO tank containers can hold 22–24 MT depending on liquid density; solid/crumb grade requires 20 MT max per container for safe stacking*