Description

Hydrocarbons, C4, 1,3-Butadiene-Free, Polymd., Pentaisobutylene Fraction, Hydrogenated is a highly specialized, low-color, and thermally stable hydrocarbon fluid derived from the selective polymerization and subsequent hydrogenation of isobutylene. This process yields a saturated, branched-chain paraffin with exceptional purity, free from reactive olefins and dienes like 1,3-butadiene. It serves as a critical performance additive and base fluid in demanding formulations where oxidative stability, low volatility, and chemical inertness are paramount. Key industries that rely on this material include high-performance lubricants, specialty adhesives, polymer processing, and advanced personal care products.

Application

• High-Performance Lubricants & Greases: Acts as a high-purity base oil or viscosity modifier, providing excellent thermal stability and low pour points for synthetic lubricants and specialty greases.
• Polymer & Elastomer Processing: Used as a plasticizer or processing aid to improve the flexibility, flow, and UV stability of various polymers, including polyolefins and synthetic rubbers.
• Specialty Adhesives & Sealants: Functions as a non-reactive diluent or tackifier component, enhancing adhesion, weatherability, and application properties in pressure-sensitive and structural formulations.
• Personal Care & Cosmetics: Serves as an emollient and carrier fluid in premium cosmetic products (e.g., lipsticks, sunscreens, hair care) due to its high purity, skin compatibility, and non-greasy feel.
• Chemical Synthesis & Intermediates: Employed as an inert reaction medium or as a starting material for further chemical modifications, such as sulfonation or alkylation.
• Industrial & Metalworking Fluids: Used in formulating release agents, drawing compounds, and corrosion inhibitors where a non-staining, stable hydrocarbon is required.

Basic Information

Product Name	Hydrocarbons, C4, 1,3-Butadiene-Free, Polymd., Pentaisobutylene Fraction, Hydrogenated
CAS No.	93685-79-1
Molecular Formula	Typically C20H42 (for the pentaisobutylene core structure)
Molecular Weight	~282.5 g/mol
Synonyms	Hydrogenated Polyisobutylene; Hydrogenated Pentaisobutylene; Polyisobutylene, hydrogenated; Isobutylene oligomer, hydrogenated; C20 Highly Branched Isoparaffin; Low Molecular Weight Hydrogenated Polyisobutene; Saturated Isobutylene Oligomer; 2,4,6,8-Tetramethyl-1-decene, tetramer, hydrogenated
EINECS	Contact for details

Quality Control

Our Hydrocarbons, C4, 1,3-Butadiene-Free, Polymd., Pentaisobutylene Fraction, Hydrogenated is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, color, and performance characteristics. Certificates of Analysis (COA) documenting key parameters such as bromine index, viscosity, and compositional analysis are provided to guarantee batch-to-batch consistency and compliance with customer requirements.

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 strong oxidizing agents, heat, and open flames. For long-term storage, consider blanketing with an inert gas such as nitrogen to maintain product quality.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to standard
Assay (GC)	≥ 95.0% (C20 Isoparaffin fraction)
Bromine Index	≤ 10 mg Br/100g
Kinematic Viscosity @ 40°C	20 - 35 cSt
Pour Point	≤ -30 °C
Color (Pt-Co)	≤ 50
Water Content (KF)	≤ 0.05%

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