Description

Polybutenes CAS NO 9003-29-6 are synthetic hydrocarbon polymers derived from the polymerization of butene isomers, primarily isobutylene. These versatile, non-drying, viscous liquids are valued for their excellent tackifying, sealing, and water-resistant properties. They are essential raw materials for formulators and manufacturers in the adhesives, sealants, lubricants, and personal care industries seeking to enhance product performance and durability.

Application

• Adhesives & Sealants: Acts as a primary tackifier and viscosity modifier in hot-melt, pressure-sensitive, and butyl rubber-based sealants, providing long-lasting adhesion and flexibility.
• Lubricants & Greases: Used as a thickener and tackiness agent in two-stroke engine oils, gear oils, and greases to improve film strength and reduce oil misting.
• Polymer Modification: Functions as a plasticizer and compatibilizer in various rubber and plastic compounds, including EPDM and polyisobutylene, to improve processability and elasticity.
• Personal Care & Cosmetics: Employed in lipsticks, hair gels, and skincare products as a non-greasy, occlusive agent to provide gloss, improve texture, and enhance water resistance.
• Caulks & Putties: Serves as a key component in non-hardening, permanent plasticity sealants for construction and automotive applications.
• Electrical & Cable Oils: Used as an impregnating and insulating fluid in electrical capacitors and high-voltage cables due to its stable dielectric properties.
• Fuel & Oil Additives: Incorporated as a detergent carrier and viscosity index improver in gasoline and lubricant additive packages.
• Chewing Gum Base: Approved for use as a masticatory substance in chewing gum formulations, providing the necessary cohesive and elastic properties.

Basic Information

Product Name	Polybutenes
CAS No.	9003-29-6
Molecular Formula	(C4H8)n
Molecular Weight	Varies by grade (typically 300 - 3000 g/mol)
Synonyms	Polybutene; Polyisobutylene (PIB); Isobutylene polymer; Butene, homopolymer; Indopol; Hyvis; Napvis; Oppanol; Parapol; Vistanex; Liquid polybutene; Low molecular weight polyisobutylene
EINECS	202-792-6

Quality Control

Our Polybutenes are manufactured under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure consistency and compliance with industry specifications, including viscosity, molecular weight distribution, and color. Certificates of Analysis (COA) documenting key parameters are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame. For long-term storage, blanketing with an inert gas such as nitrogen is recommended to prevent oxidation.

Specification

Item	Specification
Appearance	Clear, viscous liquid
Color (Gardner)	< 2
Kinematic Viscosity @ 100°C (cSt)	Grade-dependent (e.g., 30 - 3000)
Number Average Molecular Weight (Mn)	Grade-dependent
Specific Gravity @ 25°C	0.89 - 0.92
Flash Point (COC), °C	> 160
Volatile Content, %	< 0.5
Acid Value (mg KOH/g)	< 0.1

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.